General Information of This Payload
Payload ID
PAY0JCIBW
Name
Mertansine DM1
Synonyms
Mertansine; Maytansinoid DM 1; 139504-50-0; maytansinoid DM1; Mertansine (DM1); N2'-deacetyl-N2'-(3-mercapto-1-oxopropyl)-maytansine; DDZ29HGH0E; DM 1; [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(3-sulfanylpropanoyl)amino]propanoate; DM1; Maytansine, N2'-deacetyl-N2'-(3-mercapto-1-oxopropyl)-; N2'-Deacetyl-N2'-(3-mercapto-1-oxopropyl)-maytansine, L-; DM1 [Maytansinoid]; DM 1 [Maytansinoid]; UNII-DDZ29HGH0E; Mertasine; DM1;Maytansinoid; Maytansinoid DM1; MAYTANSINOID DM1 [MI]; CHEMBL4802230; SCHEMBL13558634; CHEBI:82755; MFCD28398157; s6773; CS-5804; DA-48536; HY-19792; J3.653.420F; Q4515649; (1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.1(10,14).0(3,5)]hexacosa-10(26),11,13,16,18-pentaen-6-yl (2S)-2-[methyl(3-sulfanylpropanoyl)amino]propanoate; (3S)-3-O-De[2-(acetylmethylamino)-1-oxopropyl]-3-O-[(2S)-2-(methyl 3-mercaptopropanoylamino)propanoyl]maytansine
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Target(s) Microtubule (MT)
Structure
Formula
C35H48ClN3O10S
Isosmiles
C[C@@H]1[C@@H]2C[C@]([C@@H](/C=C/C=C(/CC3=CC(=C(C(=C3)OC)Cl)N(C(=O)C[C@@H]([C@]4([C@H]1O4)C)OC(=O)[C@H](C)N(C)C(=O)CCS)C)\C)OC)(NC(=O)O2)O
PubChem CID
11343137
InChI
InChI=1S/C35H48ClN3O10S/c1-19-10-9-11-26(46-8)35(44)18-25(47-33(43)37-35)20(2)31-34(4,49-31)27(48-32(42)21(3)38(5)28(40)12-13-50)17-29(41)39(6)23-15-22(14-19)16-24(45-7)30(23)36/h9-11,15-16,20-21,25-27,31,44,50H,12-14,17-18H2,1-8H3,(H,37,43)/b11-9+,19-10+/t20-,21+,25+,26-,27+,31+,34+,35+/m1/s1
InChIKey
ANZJBCHSOXCCRQ-FKUXLPTCSA-N
IUPAC Name
[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(3-sulfanylpropanoyl)amino]propanoate
Pharmaceutical Properties
Molecule Weight
738.3
Polar area
158
Complexity
1340
xlogp Value
2.2
Heavy Count
50
Rot Bonds
8
Hbond acc
11
Hbond Donor
3
Each Antibody-drug Conjugate Related to This Payload
Full Information of The Activity Data of The ADC(s) Related to This Payload
Trastuzumab emtansine [Approved]
Identified from the Human Clinical Data
Click To Hide/Show 6 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Objective Response Rate (ORR)
21.40%
Positive HER2 expression (HER2 +++/++)
Patients Enrolled
Untreated, asymptomatic BM or controlled brain disease treated with radiotherapy >14 days before enrollment; had received prior HER2-targeted therapy and chemotherapy; and had progressed on or after their most recent treatment of advanced breast cancer.
Administration Dosage
3.6 mg/kg intravenously every 3 weeks.
Related Clinical Trial
NCT Number NCT01702571  Phase Status Phase 3
Clinical Description
A two-cohort, open-label, multicenter study of trastuzumab emtansine (T-DM1) in HER2-positive locally advanced or metastatic breast cancer patients who have received prior anti-HER2 and chemotherapy-based treatment.
Primary Endpoint
Objective response rate=21.40% (95% CI 14.60-29.60), clinical benefit rate=42.90% (95% CI 34.10-52.00).
Other Endpoint
Median PFS=5.50 months (95% CI, 5.30-5.60), overall survival =18.90 months (95% CI, 17.10-21.30).
Experiment 2 Reporting the Activity Date of This ADC [2]
Efficacy Data Objective Response Rate (ORR)
5.10%
Positive HER2 expression (HER2+++/++)
Patients Enrolled
HER2 positive advanced urothelial bladder cancer or pancreatic cancer/cholangiocarcinoma
Administration Dosage
Received singleagent TDM1 2.4 mg/kg once weekly (qw) or 3.6 mg/kg every 3 weeks (q3w).
Related Clinical Trial
NCT Number NCT02999672  Phase Status Phase 2
Clinical Description
A study to determine best tumor response with trastuzumab emtansine in human epidermal growth factor receptor 2 (HER2) overexpressing solid tumors (KAMELEON).
Primary Endpoint
BOR, Urothelial bladder cancer (n=13); PR N=5 (38.46%);SD N=1 (7.7%);PD N=6 (46.2%);NE N=1 (7.69%). Pancreatic cancer/cholangiocarcinoma (n=7) PR N=1 (14.29%);SD N=3 (42.86%);PD N=2 (28.57%); NE N=1 (14.29%).
Other Endpoint
PFS, Urothelial bladder cancer (n=13), Median PFS, months (95% CI) 2.20 (1.18-4.30), Median OS, months (95% CI) 7.03 (3.75-NE). Pancreatic cancer/cholangiocarcinoma (n=7), Median PFS, months (95% CI) 2.58 (1.31-9.99), Median OS, months (95% CI) NE (1.45-NE).
Experiment 3 Reporting the Activity Date of This ADC [3]
Efficacy Data Objective Response Rate (ORR)
5.60% (Day 21)
Patients Enrolled
38 patients were enrolled and 36 included in efficacy analysis.Patients were treated with the standard intravenous dosing of T- DM1, that is 3.6mg/kg every 3 weeks for a 21-day cycle.
Administration Dosage
3.6 mg/kg every 3 weeks for a 21-day cycle, until toxicity or progression.
Related Clinical Trial
NCT Number NCT02465060  Phase Status Phase 2
Clinical Description
Targeted therapy directed by genetic testing in treating patients with advanced refractory solid tumors, lymphomas, or multiple myeloma (the MATCH screening trial).
Primary Endpoint
ORR was 2/36 (5.56%) with 90% confidence interval (90% CI, 1.00% to 16.50%)
Other Endpoint
6-mouth sPFS=23.60%.
Experiment 4 Reporting the Activity Date of This ADC [4]
Efficacy Data Objective Response Rate (ORR)
45.00%
Positive HER2 expression (HER2 +++/++)
Patients Enrolled
An Eastern Cooperative Oncology Group performance status of 0 or 1 and centrally confirmed, measurable, HER2-positive advanced breast cancer previously treated with trastuzumab and a taxane.
Administration Dosage
3.6 mg/kg ( trastuzumab emtansine) and 1200 mg (Atezolizumab) intravenously every 3 weeks.
Related Clinical Trial
NCT Number NCT02924883  Phase Status Phase 2
Clinical Description
A randomized, multicenter, double-blind, placebo-controlled phase II study of the efficacy and safety of trastuzumab emtansine in combination with atezolizumab or atezolizumab-placebo in patients with HER2-positive locally advanced or metastatic breast cancer who have received prior trastuzumab and taxane based therapy.
Primary Endpoint
Median PFS=8.20 months (95% CI 5.80-10.70).
Other Endpoint
Median overall survival was not estimable (95% CI NE-NE); Objective response rate=45.00% (95% CI 28.06-50.30).
Experiment 5 Reporting the Activity Date of This ADC [5]
Efficacy Data Objective Response Rate (ORR)
20.00%
High HER2 expression (HER2+++)
Patients Enrolled
HER2-positive, metastatic breast cancer previously treated with taxane, trastuzumab, and pertuzumab, and were T-DM1-nave.
Administration Dosage
The study consisted of a dose de-escalation (dose-finding) cohort, followed by an expansion cohort at the recommended phase II dose (RP2D), T-DM1 3.60 mg/kg intravenously every 21 days, and pembrolizumab 200mg intravenously every 21 days, if one or fewer DLTs were noted in the first six patients at that dose level, it would be declared the RP2D.
Related Clinical Trial
NCT Number NCT03032107  Phase Status Phase 1b
Clinical Description
A phase 1b study of pembrolizumab in combination with trastuzumab-dm1 in metastatic HER2-positive breast cancer.
Primary Endpoint
OrR=20.00% (95% CI 5.70%-43.70%), and median PFS=9.60 months (95%CI 2.80-16.00 months).
Other Endpoint
There were no dose-limiting toxicities. The RP2D was 3.60 mg/kg T-DM1 plus 200 mg pembrolizumab every 21 days.
Experiment 6 Reporting the Activity Date of This ADC [6]
Patients Enrolled
Newly diagnosed, HER2-positive, nonmetastatic, histologically confirmed, operable primary invasive breast carcinoma.
Administration Dosage
T-DM1 was dosed at 3.60 mg/kg once every 3 weeks. Trastuzumab was dosed at 6 mg/kg once every 3 weeks after an 8 mg/kg loading dose and started concurrently with the taxane. Pertuzumab was dosed at 420 mg once every 3 weeks after an 840 mg loading dose and administered concurrently with T-DM1 or trastuzumab-plus-taxane. An interval of 3 weeks from the last dose of anthracycline to initiation of HER2-targeted therapy was required. After the taxane-concurrent phase in the trastuzumab-containing arm, trastuzumab-plus-pertuzumab was continued for 1 year. In the T-DM1containing arm, T-DM1-plus-pertuzumab was continued for 1 year.

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Related Clinical Trial
NCT Number NCT01966471  Phase Status Phase 3
Clinical Description
A randomized, multicenter, open-label, phase 3 trial comparing trastuzumab plus pertuzumab plus a taxane following anthracyclines versus trastuzumab emtansine plus pertuzumab following anthracyclines as adjuvant therapy in patients with operable HER2-positive primary breast cancer.
Primary Endpoint
82 (9.90%) IDFS events had occurred in the AC-THP arm and 80 (9.60%) had occurred in the AC-KP arm.
Other Endpoint
3-year IDFS rates were 94.10% (95% CI, 92.50 to 95.70) with AC-THP and 92.80% (95% CI, 91.00 to 94.50) with AC-KP.
Discovered Using Patient-derived Xenograft Model
Click To Hide/Show 5 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [7]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 1.10% (Day 28) Low HER2 expression (HER2+)
Method Description
The antitumor activity of T-DM1 was evaluated in various patient-derived xenograft models with different HER2 expression levels. Each cell suspension or tumor fragment was inoculated subcutaneously into specific pathogen-free female nude mice.The tumor-bearing mice were randomized into treatment and control groups based on the tumor volumes, and dosing was initiated on day 0. In this group, 10 mg/kg T-DM1 was i.v. to the tumor-bearing mice.

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In Vivo Model Breast cancer PDX model (PDX: ST565)
Experiment 2 Reporting the Activity Date of This ADC [7]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 19.20% (Day 28) Low HER2 expression (HER2+)
Method Description
The antitumor activity of T-DM1 was evaluated in various patient-derived xenograft models with different HER2 expression levels. Each cell suspension or tumor fragment was inoculated subcutaneously into specific pathogen-free female nude mice.The tumor-bearing mice were randomized into treatment and control groups based on the tumor volumes, and dosing was initiated on day 0. In this group, 10 mg/kg T-DM1 was i.v. to the tumor-bearing mice.

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In Vivo Model Breast cancer PDX model (PDX: ST313)
Experiment 3 Reporting the Activity Date of This ADC [7]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 37.60% (Day 28) High HER2 expression (HER2+++)
Method Description
The antitumor activity of T-DM1 was evaluated in various patient-derived xenograft models with different HER2 expression levels. Each cell suspension or tumor fragment was inoculated subcutaneously into specific pathogen-free female nude mice.The tumor-bearing mice were randomized into treatment and control groups based on the tumor volumes, and dosing was initiated on day 0. In this group, 10 mg/kg T-DM1 was i.v. to the tumor-bearing mice.

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In Vivo Model Gastric cancer PDX model (PDX model: NIBIO G016)
Experiment 4 Reporting the Activity Date of This ADC [7]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 85.20% (Day 21) Moderate HER2 expression (HER2++)
Method Description
The antitumor activity of T-DM1 was evaluated in various patient-derived xenograft models with different HER2 expression levels. Each cell suspension or tumor fragment was inoculated subcutaneously into specific pathogen-free female nude mice.The tumor-bearing mice were randomized into treatment and control groups based on the tumor volumes, and dosing was initiated on day 0. In this group, 10 mg/kg T-DM1 was i.v. to the tumor-bearing mice.

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In Vivo Model Breast cancer PDX model (PDX: ST225)
Experiment 5 Reporting the Activity Date of This ADC [8]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 90.40% Positive HER2 expression (HER2+++/++)
Method Description
T-DM1 (Genentech) was administered i.p. at 10 mg/kg once per week.
In Vivo Model Breast cancer PDX model (PDX: PDX12)
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 36 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [7]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 7.10% (Day 21) Low HER2 expression (HER2+)
Method Description
The antitumor activity of T-DM1 was evaluated in various mice xenograft models with different HER2 expression levels; CFPAC-1 (low-expression). Each cell suspension or tumor fragment was inoculated subcutaneously into specific pathogen-free female nude mice.The tumor-bearing mice were randomized into treatment and control groups based on the tumor volumes, and dosing was initiated on day 0. In this group, 10 mg/kg T-DM1 was i.v. to the tumor-bearing mice.

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In Vivo Model CFPAC-1 cell line xenograft model
In Vitro Model Pancreatic ductal adenocarcinoma CFPAC-1 cells CVCL_1119
Experiment 2 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 15.50% (Day 7) High HER2 expression (HER2+++)
Method Description
The activity of trastuzumab-MCC-DM1 was further investigated in trastuzumab-insensitive mouse xenograft model. After transplantation of MMTV-HER2 Fo5 mammary tumor explants, tumor-bearing nude mice (n = 8 mice per group) were treated once every 3 weeks with 1 mg/kg trastuzmab-MCC-DM1.
In Vivo Model MMTV-HER2 Fo5 CDX model (Trastuzumab resistant)
In Vitro Model Breast cancer MMTV-HER2 cells Mus musculus
Experiment 3 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 27.10% (Day 48) High HER2 expression (HER2+++)
Method Description
Naive female beige nude XID mice were inoculated in the mammary fat pad with 20 million tumor cells suspended in 50% phenol redfree Matrigel mixed with culture medium. All animals were randomly assigned into treatment groups, such that the mean tumor volume for each group was 100 to 200 mm3. Nude mice with established tumors were dosed i.v. with Tmab-MCC-DM1 0.3 mg/kg for a total of three injections.

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In Vivo Model Trastuzumab-resistant breast cancer CDX model
In Vitro Model Invasive breast carcinoma of no special type BT-474 EEI cells CVCL_AR96
Experiment 4 Reporting the Activity Date of This ADC [7]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 31.70% (Day 21) Low HER2 expression (HER2+)
Method Description
The antitumor activity of T-DM1 was evaluated in various mice xenograft models with different HER2 expression levels; Capan-1 (weak positive). Each cell suspension or tumor fragment was inoculated subcutaneously into specific pathogen-free female nude mice.The tumor-bearing mice were randomized into treatment and control groups based on the tumor volumes, and dosing was initiated on day 0. In this group, 10 mg/kg T-DM1 was i.v. to the tumor-bearing mice.

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In Vivo Model Capan-1 cell line xenograft model
In Vitro Model Pancreatic ductal adenocarcinoma Capan-1 cells CVCL_0237
Experiment 5 Reporting the Activity Date of This ADC [7]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 33.10% (Day 21) Negative HER2 expression (HER2-)
Method Description
The antitumor activity of T-DM1 was evaluated in various mice xenograft models with different HER2 expression levels; GCIY (negative). Each cell suspension or tumor fragment was inoculated subcutaneously into specific pathogen-free female nude mice.The tumor-bearing mice were randomized into treatment and control groups based on the tumor volumes, and dosing was initiated on day 0. In this group, 10 mg/kg T-DM1 was i.v. to the tumor-bearing mice.

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In Vivo Model GCIY cell line xenograft model
In Vitro Model Gastric adenocarcinoma GCIY cells CVCL_1228
Experiment 6 Reporting the Activity Date of This ADC [10]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 36.00% (Day 33) Moderate HER2 expression (HER2++)
Method Description
Subcutaneous injection of 100,000 cells mixed in 200 mL PBS solution was performed. Two weeks after tumour cell injection, mice were treated with trastuzumab, cetuximab or T-DM1 at a dose of 300 mg/kg via IP injection.
In Vivo Model HT29 CDX model
In Vitro Model Colon cancer HT29 cells CVCL_A8EZ
Experiment 7 Reporting the Activity Date of This ADC [10]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 36.00% (Day 33) Low HER2 expression (HER2 +)
Method Description
SW48, HT-29 and LS174T cells were injected into null mice subcutaneously, followed by treatment with cetuximab, trastuzumab and T-DM1. Two weeks after tumour cell injection, mice were treated with trastuzumab, cetuximab or T-DM1 at a dose of 300 mg/kg via IP injection.
In Vivo Model SW48 CDX model
In Vitro Model Colon adenocarcinoma SW48 cells CVCL_1724
Experiment 8 Reporting the Activity Date of This ADC [11]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 42.00% (Day 58) Low HER2 expression (HER2 +)
Method Description
11-18 cells (4,000,000 ) and HCC827 cells (2,000,000 ) were injected subcutaneously into the backs on both sides of the mice. T-DM1 (30 mg/kg, once per week i.p.) for 8 weeks.
In Vivo Model 11-18 CDX model
In Vitro Model Lung adenocarcinoma 11-18 cells CVCL_6659
Experiment 9 Reporting the Activity Date of This ADC [11]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 42.00% (Day 58) Low HER2 expression (HER2+)
Method Description
Subcutaneous injection of 100,000 cells mixed in 200 mL PBS solution was performed. Two weeks after tumour cell injection, mice were treated with trastuzumab, cetuximab or T-DM1 (30 mg/kg, once per week i.p.) for 8 weeks.
In Vivo Model 11-18 CDX model
In Vitro Model Lung adenocarcinoma 11-18 cells CVCL_6659
Experiment 10 Reporting the Activity Date of This ADC [12]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 43.30% (Day 30) Positive HER2 expression (HER2 +++/++)
Method Description
Trastuzumab-emtansine (3 mg/kg, every seven days 4) induces efficient tumor cell killing in cell line-derived models of BT-474/R1-7 cells with HER2 expression with high expression.
In Vivo Model BT-474 CDX model (T-DM1 resistant)
In Vitro Model Invasive breast carcinoma BT-474 cells (Trastuzumab emtansine resistant) CVCL_0179
Experiment 11 Reporting the Activity Date of This ADC [12]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 45.00% (Day 21) Positive HER2 expression (HER2 +++/++)
Method Description
Trastuzumab-emtansine (3 mg/kg, every seven days x3) induces efficient tumor cell killing in cell line-derived models of SK-OV-3 cells with HER2 expression with high expression.
In Vivo Model SK-OV-3 CDX model (Expressing YES1 Y537F)
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells (YES1 Y537F expression) CVCL_0532
Experiment 12 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 45.50% (Day 48) High HER2 expression (HER2+++)
Method Description
Naive female beige nude XID mice were inoculated in the mammary fat pad with 20 million tumor cells suspended in 50% phenol redfree Matrigel mixed with culture medium. All animals were randomly assigned into treatment groups, such that the mean tumor volume for each group was 100 to 200 mm3. Nude mice with established tumors were dosed i.v. with Tmab-MCC-DM1 1 mg/kg for a total of three injections.

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In Vivo Model Trastuzumab-resistant breast cancer CDX model
In Vitro Model Invasive breast carcinoma of no special type BT-474 EEI cells CVCL_AR96
Experiment 13 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 46.20% (Day 7) High HER2 expression (HER2+++)
Method Description
The activity of trastuzumab-MCC-DM1 was further investigated in trastuzumab-insensitive mouse xenograft model. After transplantation of MMTV-HER2 Fo5 mammary tumor explants, tumor-bearing nude mice (n = 8 mice per group) were treated once every 3 weeks with 3 mg/kg trastuzmab-MCC-DM1.
In Vivo Model MMTV-HER2 Fo5 CDX model (Trastuzumab resistant)
In Vitro Model Breast cancer MMTV-HER2 cells Mus musculus
Experiment 14 Reporting the Activity Date of This ADC [10]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 55.00% (Day 33) Positive HER2 expression (HER2+++/++)
Method Description
Subcutaneous injection of 100,000 cells mixed in 200 mL PBS solution was performed. Two weeks after tumour cell injection, mice were treated with trastuzumab, cetuximab or T-DM1 at a dose of 300 mg/kg via IP injection.
In Vivo Model HT-29 CDX model
In Vitro Model Colon adenocarcinoma HT-29 cells CVCL_0320
Experiment 15 Reporting the Activity Date of This ADC [10]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 55.00% (Day 33) Moderate HER2 expression (HER2 ++)
Method Description
SW48, HT-29 and LS174T cells were injected into null mice subcutaneously, followed by treatment with cetuximab, trastuzumab and T-DM1. Two weeks after tumour cell injection, mice were treated with trastuzumab, cetuximab or T-DM1 at a dose of 300 mg/kg via IP injection.
In Vivo Model HT-29 CDX model
In Vitro Model Colon adenocarcinoma HT-29 cells CVCL_0320
Experiment 16 Reporting the Activity Date of This ADC [7]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 58.50% (Day 21) Moderate HER2 expression (HER2++)
Method Description
The antitumor activity of T-DM1 was evaluated in various mice xenograft models with different HER2 expression levels; JIMT-1 (moderate positive). Each cell suspension or tumor fragment was inoculated subcutaneously into specific pathogen-free female nude mice.The tumor-bearing mice were randomized into treatment and control groups based on the tumor volumes, and dosing was initiated on day 0. In this group, 10 mg/kg T-DM1 was i.v. to the tumor-bearing mice.

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In Vivo Model JIMT-1 cell line xenograft model
In Vitro Model Breast ductal carcinoma JIMT-1 cells CVCL_2077
Experiment 17 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 58.70% (Day 48) High HER2 expression (HER2+++)
Method Description
Naive female beige nude XID mice were inoculated in the mammary fat pad with 20 million tumor cells suspended in 50% phenol redfree Matrigel mixed with culture medium. All animals were randomly assigned into treatment groups, such that the mean tumor volume for each group was 100 to 200 mm3. Nude mice with established tumors were dosed i.v. with Tmab-MCC-DM1 3 mg/kg for a total of three injections.

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In Vivo Model Trastuzumab-resistant breast cancer CDX model
In Vitro Model Invasive breast carcinoma of no special type BT-474 EEI cells CVCL_AR96
Experiment 18 Reporting the Activity Date of This ADC [11]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 63.00% (Day 58) Positive HER2 expression (HER2+++/++)
Method Description
Subcutaneous injection of 100,000 cells mixed in 200 mL PBS solution was performed. Two weeks after tumour cell injection, mice were treated with trastuzumab, cetuximab or T-DM1 (30 mg/kg, once per week i.p.) for 8 weeks.
In Vivo Model H3255 CDX model
In Vitro Model Lung adenocarcinoma NCI-H3255 cells CVCL_6831
Experiment 19 Reporting the Activity Date of This ADC [11]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 63.00% (Day 58) High HER2 expression (HER2 +++)
Method Description
T-DM1 (30 mg/kg, once per week i.p.) for 8 weeks,.
In Vivo Model H3255 CDX model
In Vitro Model Lung adenocarcinoma NCI-H3255 cells CVCL_6831
Experiment 20 Reporting the Activity Date of This ADC [10]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 63.30% (Day 33) High HER2 expression (HER2 +++)
Method Description
SW48, HT-29 and LS174T cells were injected into null mice subcutaneously, followed by treatment with cetuximab, trastuzumab and T-DM1. Two weeks after tumour cell injection, mice were treated with trastuzumab, cetuximab or T-DM1 at a dose of 300 mg/kg via IP injection.
In Vivo Model LS174T CDX model
In Vitro Model Colon adenocarcinoma LS174T cells CVCL_1384
Experiment 21 Reporting the Activity Date of This ADC [11]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 66.70% (Day 51) Low HER2 expression (HER2+)
Method Description
Subcutaneous injection of 100,000 cells mixed in 200 mL PBS solution was performed. Two weeks after tumour cell injection, mice were treated with trastuzumab, cetuximab or T-DM1 (30 mg/kg, once per week i.p.) for 8 weeks.
In Vivo Model HCC827 CDX model
In Vitro Model Lung adenocarcinoma HCC827 cells CVCL_2063
Experiment 22 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 74.00% (Day 7) High HER2 expression (HER2+++)
Method Description
The activity of trastuzumab-MCC-DM1 was further investigated in trastuzumab-insensitive mouse xenograft model. After transplantation of MMTV-HER2 Fo5 mammary tumor explants, tumor-bearing nude mice (n = 8 mice per group) were treated once every 3 weeks with 10 mg/kg trastuzmab-MCC-DM1.
In Vivo Model MMTV-HER2 Fo5 CDX model (Trastuzumab resistant)
In Vitro Model Breast cancer MMTV-HER2 cells Mus musculus
Experiment 23 Reporting the Activity Date of This ADC [13]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 76.54% (Day 24) Positive HER2 expression (HER2+++/++)
Method Description
Inoculate 150 mice with KPL-4 cells at 3 million cells/mouse suspended in HBSS/matrigel, in the thoracic mammary fat pad at a volume of 0.2 ml. When tumors have reached a mean tumor volume of 100-250 mm3, they will be grouped out into 10 groups of 8-10 mice each. A single treatment will be administered intravenously (1 mg/kg) via the tail vein on Day 0.

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In Vivo Model KPL-4 CDX model
In Vitro Model Breast inflammatory carcinoma KPL-4 cells CVCL_5310
Experiment 24 Reporting the Activity Date of This ADC [13]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 82.90% (Day 24) Positive HER2 expression (HER2+++/++)
Method Description
Inoculate 150 mice with KPL-4 cells at 3 million cells/mouse suspended in HBSS/matrigel, in the thoracic mammary fat pad at a volume of 0.2 ml. When tumors have reached a mean tumor volume of 100-250 mm3, they will be grouped out into 10 groups of 8-10 mice each. A single treatment will be administered intravenously (ADC-211, 1 mg/kg plus ADC-106, 5 mg/kg) via the tail vein on Day 0.

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In Vivo Model KPL-4 CDX model
In Vitro Model Breast inflammatory carcinoma KPL-4 cells CVCL_5310
Experiment 25 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 83.90% (Day 10) High HER2 expression (HER2+++)
Method Description
Mice bearing mammary tumor transplants from the MMTV-HER2 Fo5 line were given a single iv injection (10 mg/kg) of Tmab-SPP-DM1, Tmab-SSNPP-DM3, Tmab-SSNPP-DM4, Tmab-MCC-DM1, or vehicle (n=7 mice per group), and tumor growth was monitored for 25 days.
In Vivo Model MMTV-HER2 Fo5 CDX model (Trastuzumab resistant)
In Vitro Model Breast cancer MMTV-HER2 cells Mus musculus
Experiment 26 Reporting the Activity Date of This ADC [13]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 84.39% (Day 24) Positive HER2 expression (HER2+++/++)
Method Description
Inoculate 150 mice with KPL-4 cells at 3 million cells/mouse suspended in HBSS/matrigel, in the thoracic mammary fat pad at a volume of 0.2 ml. When tumors have reached a mean tumor volume of 100-250 mm3, they will be grouped out into 10 groups of 8-10 mice each. A single treatment will be administered intravenously (ADC-211, 1 mg/kg plus ADC-106, 1 mg/kg) via the tail vein on Day 0.

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In Vivo Model KPL-4 CDX model
In Vitro Model Breast inflammatory carcinoma KPL-4 cells CVCL_5310
Experiment 27 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 88.70% (Day 7) High HER2 expression (HER2+++)
Method Description
The activity of trastuzumab-MCC-DM1 was further investigated in trastuzumab-insensitive mouse xenograft model. After transplantation of MMTV-HER2 Fo5 mammary tumor explants, tumor-bearing nude mice (n = 8 mice per group) were treated once every 3 weeks with 15 mg/kg trastuzmab-MCC-DM1.
In Vivo Model MMTV-HER2 Fo5 CDX model (Trastuzumab resistant)
In Vitro Model Breast cancer MMTV-HER2 cells Mus musculus
Experiment 28 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 90.10% (Day 7) High HER2 expression (HER2+++)
Method Description
The activity of trastuzumab-MCC-DM1 was further investigated in trastuzumab-insensitive mouse xenograft model. After transplantation of MMTV-HER2 Fo5 mammary tumor explants, tumor-bearing nude mice (n = 8 mice per group) were treated once every 3 weeks with 30 mg/kg trastuzmab-MCC-DM1.
In Vivo Model MMTV-HER2 Fo5 CDX model (Trastuzumab resistant)
In Vitro Model Breast cancer MMTV-HER2 cells Mus musculus
Experiment 29 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 90.70% (Day 48) High HER2 expression (HER2+++)
Method Description
Naive female beige nude XID mice were inoculated in the mammary fat pad with 20 million tumor cells suspended in 50% phenol redfree Matrigel mixed with culture medium. All animals were randomly assigned into treatment groups, such that the mean tumor volume for each group was 100 to 200 mm3. Nude mice with established tumors were dosed i.v. with Tmab-MCC-DM1 10 mg/kg for a total of three injections.

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In Vivo Model Trastuzumab-resistant breast cancer CDX model
In Vitro Model Invasive breast carcinoma of no special type BT-474 EEI cells CVCL_AR96
Experiment 30 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 92.30% (Day 14) High HER2 expression (HER2+++)
Method Description
KPL-4 human breast tumor cells were inoculated (3 million cells per mouse, in Matrigel) into the mammary fat pads of SCID beige mice. All animals were randomly assigned into treatment groups, such that the mean tumor volume for each group was 100 to 200 mm3. Trastuzumab-maytansinoid conjugates were given by single 15 mg/kg iv injection.
In Vivo Model Breast cancer CDX model
In Vitro Model Breast inflammatory carcinoma KPL-4 cells CVCL_5310
Experiment 31 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 98.70% (Day 48) High HER2 expression (HER2+++)
Method Description
Naive female beige nude XID mice were inoculated in the mammary fat pad with 20 million tumor cells suspended in 50% phenol redfree Matrigel mixed with culture medium. All animals were randomly assigned into treatment groups, such that the mean tumor volume for each group was 100 to 200 mm3. Nude mice with established tumors were dosed i.v. with Tmab-MCC-DM1 15 mg/kg for a total of three injections.

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In Vivo Model Trastuzumab-resistant breast cancer CDX model
In Vitro Model Invasive breast carcinoma of no special type BT-474 EEI cells CVCL_AR96
Experiment 32 Reporting the Activity Date of This ADC [7]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 99.40% (Day 21) High HER2 expression (HER2+++)
Method Description
The antitumor activity of T-DM1 was evaluated in various mice xenograft models with different HER2 expression levels; KPL-4 (strong positive). Each cell suspension or tumor fragment was inoculated subcutaneously into specific pathogen-free female nude mice.The tumor-bearing mice were randomized into treatment and control groups based on the tumor volumes, and dosing was initiated on day 0. In this group, 10 mg/kg T-DM1 was i.v. to the tumor-bearing mice.

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In Vivo Model KPL-4 cell line xenograft model
In Vitro Model Breast inflammatory carcinoma KPL-4 cells CVCL_5310
Experiment 33 Reporting the Activity Date of This ADC [14]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 56) Positive HER2 expression (HER2 +++/++)
Method Description
HER2-positive HCC1954 cells were either treated with vehicle (control) or T-DM1 for 5 days, trypsinized, washed in PBS and sorted by flow cytometry based on the surface ROR1 expression. ROR1- and ROR1+ or unfractionated cells were injected into the subcutaneous site of 6-8-week old Nu/J mice (n=3/group).
In Vivo Model HCC1954 CDX model
In Vitro Model Breast ductal carcinoma HCC1954 cells CVCL_1259
Experiment 34 Reporting the Activity Date of This ADC [15]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 35) High HER2 expression (HER2+++)
Method Description
Mice were inoculated subcutaneously in the right flank with either 5x106 cells/mouse of BTC cell line KKU-100, mice were randomized to the control group or treatment with T-DM1 20 mg/kg groups.
In Vivo Model KMCH-1 CDX model
In Vitro Model Combined hepatocellular carcinoma and cholangiocarcinoma KMCH-1 cells CVCL_7970
Experiment 35 Reporting the Activity Date of This ADC [16]
Efficacy Data Minimal Effective Dose (MED) < 5.00 mg/kg Moderate HER2 expression (HER2++)
Method Description
Following the acclimatization period (1 week), the animals were stratified by body weight and randomly assigned to the following group: two T-DM1 groups, treated with 20 mg/kg and 60 mg/kg. Each group consisted of five animals for blood chemistry test as well as five animals for clinical signs and body weight measurements.
In Vivo Model Gastric cancer CDX model
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Experiment 36 Reporting the Activity Date of This ADC [16]
Efficacy Data Maximum Tolerated Dose (MTD) > 20.00 mg/kg High HER2 expression (HER2+++)
Method Description
Following the acclimatization period (1 week), the animals were stratified by body weight and randomly assigned to the following group: two T-DM1 groups, treated with 20 mg/kg and 60 mg/kg. Each group consisted of five animals for blood chemistry test as well as five animals for clinical signs and body weight measurements.
In Vivo Model Gastric cancer CDX model
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Obtained from the Model Organism Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [17]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 94.98% (Day 7) High HER2 expression (HER2 +++)
Method Description
An allograft was propagated from the Fo5 mmty transgenic mouse which does not respond to.or responds poorly to HERCEPTIN therapy. Subjects were treated once with ADC (10 mg/kg); and placebo PBS buffer control (Vehicle) andmonitored over 3 weeks.
In Vivo Model Breast cancer model MMTV-HER2 Fo5
Revealed Based on the Cell Line Data
Click To Hide/Show 23 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [18]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.04 nM
High HER2 expression (HER2 +++)
Method Description
With OHPAS ADCs 1-4 , we first performed cell-based MTT assays against a series of HER2 positive/negative cell lines using the commercially available HER2 ADC, T-DM1 (average DAR 3.5), which we purchased as a positive control.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 2 Reporting the Activity Date of This ADC [18]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.14 nM
High HER2 expression (HER2 +++)
Method Description
With OHPAS ADCs 1-4 , we first performed cell-based MTT assays against a series of HER2 positive/negative cell lines using the commercially available HER2 ADC, T-DM1 (average DAR 3.5), which we purchased as a positive control.
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
Experiment 3 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.24 nM±0.12 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 4 Reporting the Activity Date of This ADC [18]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.26 nM
High HER2 expression (HER2 +++)
Method Description
With OHPAS ADCs 1-4 , we first performed cell-based MTT assays against a series of HER2 positive/negative cell lines using the commercially available HER2 ADC, T-DM1 (average DAR 3.5), which we purchased as a positive control.
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Experiment 5 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.57 nM±0.10 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Experiment 6 Reporting the Activity Date of This ADC [18]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.76 nM
Moderate HER2 expression (HER2 ++)
Method Description
With OHPAS ADCs 1-4 , we first performed cell-based MTT assays against a series of HER2 positive/negative cell lines using the commercially available HER2 ADC, T-DM1 (average DAR 3.5), which we purchased as a positive control.
In Vitro Model Breast ductal carcinoma JIMT-1 cells CVCL_2077
Experiment 7 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.71 nM
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. For measurement of apoptosis, BT-474 and SK-BR-3 were exposed to trastuzumab or trastuzumab-DM for 48 h.

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In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Experiment 8 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.26 nM
High HER2 expression (HER2+++)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. For measurement of apoptosis, BT-474 and SK-BR-3 were exposed to trastuzumab or trastuzumab-DM for 48 h.

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In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Experiment 9 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.89 nM±3.51 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Experiment 10 Reporting the Activity Date of This ADC [20]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
6.40 nM±4.80 nM
Positive HER2 expression (HER2 +++/++)
Method Description
ADCs 21-23 was performed on HCC827 and NCI-H2228 cells. cells (5 x 103 cells/well) were cultured in 96-well plates with 100 uL complete medium, and 24 h later the cells were treated in triplicate with varying concentrations of ADCs for 72 h.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 11 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
18.37 nM
Low HER2 expression (HER2+; IHC 1+)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. Medium was then removed and replaced by fresh culture medium containing different concentrations of trastuzumab, trastuzumab ADC, or free DM1, and the cells incubated for varying periods of time.

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In Vitro Model Breast adenocarcinoma MDA-MB-468 cells CVCL_0419
Experiment 12 Reporting the Activity Date of This ADC [18]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 50.00 nM Negative HER2 expression (HER2 -)
Method Description
With OHPAS ADCs 1-4 , we first performed cell-based MTT assays against a series of HER2 positive/negative cell lines using the commercially available HER2 ADC, T-DM1 (average DAR 3.5), which we purchased as a positive control.
In Vitro Model Invasive breast carcinoma MCF-7 cells CVCL_0031
Experiment 13 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100.00 nM Negative HER2 expression (HER2 -)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. Medium was then removed and replaced by fresh culture medium containing different concentrations of trastuzumab, trastuzumab ADC, or free DM1, and the cells incubated for varying periods of time.

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In Vitro Model Invasive breast carcinoma MCF-7 cells CVCL_0031
Experiment 14 Reporting the Activity Date of This ADC [20]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
220.00 nM±39.50 nM
Negative HER2 expression (HER2 -)
Method Description
ADCs 21-23 was performed on HCC827 and NCI-H2228 cells. cells (5 x 103 cells/well) were cultured in 96-well plates with 100 uL complete medium, and 24 h later the cells were treated in triplicate with varying concentrations of ADCs for 72 h.
In Vitro Model Breast adenocarcinoma MDA-MB-468 cells CVCL_0419
Experiment 15 Reporting the Activity Date of This ADC [20]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
317.00 nM±93.70 nM
Negative HER2 expression (HER2 -)
Method Description
ADCs 21-23 was performed on HCC827 and NCI-H2228 cells. cells (5 x 103 cells/well) were cultured in 96-well plates with 100 uL complete medium, and 24 h later the cells were treated in triplicate with varying concentrations of ADCs for 72 h.
In Vitro Model Lung adenocarcinoma HCC827 cells CVCL_2063
Experiment 16 Reporting the Activity Date of This ADC [20]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 500 nM Negative HER2 expression (HER2 -)
Method Description
ADCs 21-23 was performed on HCC827 and NCI-H2228 cells. cells (5 x 103 cells/well) were cultured in 96-well plates with 100 uL complete medium, and 24 h later the cells were treated in triplicate with varying concentrations of ADCs for 72 h.
In Vitro Model Invasive breast carcinoma MCF-7 cells CVCL_0031
Experiment 17 Reporting the Activity Date of This ADC [17]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
8.00-15.00 ng/mL
High HER2 expression (HER2+++)
Method Description
Exposing mammalian cells having HER2 receptors to ADC in a cell culture medium; culturing the cells for a period from about 6 hours to about 5 days; and measuring cell viability Cell-based in vitro assays were used to measure viability, cytotoxicity, and induction of apoptosis of the ADC of the invention.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 18 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.00 ug/mL
Negative HER2 expression (HER2-)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. Medium was then removed and replaced by fresh culture medium containing different concentrations of trastuzumab, trastuzumab ADC, or free DM1, and the cells incubated for varying periods of time.

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In Vitro Model Invasive breast carcinoma of no special type BT-474 EEI cells CVCL_AR96
Experiment 19 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.01 ug/mL
Moderate HER2 expression (HER2++; IHC 2+)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. Medium was then removed and replaced by fresh culture medium containing different concentrations of trastuzumab, trastuzumab ADC, or free DM1, and the cells incubated for varying periods of time.

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In Vitro Model Breast inflammatory carcinoma KPL-4 cells CVCL_5310
Experiment 20 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.01 ug/mL
Positive HER2 expression (HER2+++/++; HER2 MFI=95.7)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. Medium was then removed and replaced by fresh culture medium containing different concentrations of trastuzumab, trastuzumab ADC, or free DM1, and the cells incubated for varying periods of time.

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In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
Experiment 21 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.03 ug/mL
High HER2 expression (HER2+++)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. Medium was then removed and replaced by fresh culture medium containing different concentrations of trastuzumab, trastuzumab ADC, or free DM1, and the cells incubated for varying periods of time.

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In Vitro Model Breast ductal carcinoma HCC1954 cells CVCL_1259
Experiment 22 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.06 ug/mL
High HER2 expression (HER2+++)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. Medium was then removed and replaced by fresh culture medium containing different concentrations of trastuzumab, trastuzumab ADC, or free DM1, and the cells incubated for varying periods of time.

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In Vitro Model Lung adenocarcinoma Calu-3 cells CVCL_0609
Experiment 23 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.27 ug/mL
Low HER2 expression (HER2+)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. Medium was then removed and replaced by fresh culture medium containing different concentrations of trastuzumab, trastuzumab ADC, or free DM1, and the cells incubated for varying periods of time.

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In Vitro Model Gastric tubular adenocarcinoma MKN7 cells CVCL_1417
GQ-1001 [Phase 2]
Identified from the Human Clinical Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [21]
Efficacy Data Partial Response (PR)
40.00%
Patients Enrolled
HER2-positive advanced solid tumors.
Administration Dosage
Administered intravenously as a monotherapy on Day 1 of 21-day cycles. The starting dose was 1.20 mg/kg, followed by 2.40, 3.60, 4.80, 6.00, 7.20 and 8.40 mg/kg.
Related Clinical Trial
NCT Number NCT04450732  Phase Status Phase 1
Clinical Description
A phase 1, first-in-human, multicenter, open-label, study of GQ1001, a HER2 targeted antibody-drug conjugate, administered intravenously, in adult patients with HER2-positive advanced solid tumors.
Experiment 2 Reporting the Activity Date of This ADC [24]
Related Clinical Trial
NCT Number NCT05575804  Phase Status Phase 1/2
Clinical Description
Phase 1b/2 study of GQ1001 and pyrotinib in HER2 positive metastatic breast cancer patients who had failed previous anti-HER2 treatment GRACE.
Naratuximab emtansine [Phase 2]
Identified from the Human Clinical Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [22]
Efficacy Data Objective Response Rate (ORR)
12.82%
Positive CD38 expression (CD38+++/++)
Patients Enrolled
Lymphoma limited to diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL), mantle cell lymphoma (MCL), or marginal zone lymphoma (MZL). Patients were also required to have received at least one prior anti-CD20 based therapeutic regimen, have a life expectancy of greater than 3 months, an Eastern Cooperative Oncology Group Performance status of 2 or lower, and adequate hematological, renal, and hepatic function.

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Administration Dosage
Conventional 3+3 dose-escalation design; intravenously once every 3 weeks; from 0.10 to 1.80 mg/kg.
Related Clinical Trial
NCT Number NCT01534715  Phase Status Phase 1
Clinical Description
A phase 1, multi-center, open-label study of IMGN529 administered intravenously in adult patients with relapsed or refractory non-Hodgkin lymphoma and chronic lymphocytic leukemia.
Primary Endpoint
A total of five objective responses were observed, resulting in an overall response rate (ORR) of 12.82% (N=39). Four of these (1 complete response [CR] and 3 partial responses [PRs]) occurred in patients with DLBCL, for an ORR of 22% in this lymphoma subset.
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [27]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 14.50% (Day 38) Positive CD38 expression (CD38+++/++)
Method Description
IMGN529 induces efficient tumor cell killing in cell line-derived models B-cell NHL of cells with lower CD27 expression, dosed at 2.5 ug/kg , 2 qw3.
In Vivo Model CD37-positive NHL and CLL model
In Vitro Model Non-Hodgkin lymphoma Non-Hodgkin lymphoma cells Homo sapiens
Chronic lymphocytic leukemia Chronic lymphocytic leukemia cells Homo sapiens
Experiment 2 Reporting the Activity Date of This ADC [27]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 99.00% (Day 38) Positive CD38 expression (CD38+++/++)
Method Description
IMGN529 induces efficient tumor cell killing in cell line-derived models B-cell NHL of cells with lower CD27 expression, dosed at 5 ug/kg , 2 qw3.
In Vivo Model CD37-positive NHL and CLL model
In Vitro Model Non-Hodgkin lymphoma Non-Hodgkin lymphoma cells Homo sapiens
Chronic lymphocytic leukemia Chronic lymphocytic leukemia cells Homo sapiens
Experiment 3 Reporting the Activity Date of This ADC [27]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 38) Positive CD38 expression (CD38+++/++)
Method Description
IMGN529 induces efficient tumor cell killing in cell line-derived models B-cell NHL of cells with lower CD27 expression, dosed at 10 ug/kg , 2 qw3.
In Vivo Model CD37-positive NHL and CLL model
In Vitro Model Non-Hodgkin lymphoma Non-Hodgkin lymphoma cells Homo sapiens
Chronic lymphocytic leukemia Chronic lymphocytic leukemia cells Homo sapiens
Experiment 4 Reporting the Activity Date of This ADC [27]
Efficacy Data Tumor Growth Inhibition value (TGI)
100.00% (10 mg/kg)
Positive CD38 expression (CD38+++/++)
Method Description
The inhibitory activity of SGN-LIV1A against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 1 day.
In Vivo Model DoHH2 CDX model
In Vitro Model Diffuse large B-cell lymphoma WSU-NHL cells CVCL_1793
Revealed Based on the Cell Line Data
Click To Hide/Show 5 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [27]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 0.10 nM
Method Description
In vitro cytotoxicity was measured by incubating 5000 target cells with indicated agents in complete RPMI-1640 media for 5 days at 37°C. The viability of remaining cells was determined by a colorimetric WST-10 assay.
In Vivo Model DoHH2 CDX model
In Vitro Model Diffuse large B-cell lymphoma germinal center B-cell type DoHH2 cells CVCL_1179
Experiment 2 Reporting the Activity Date of This ADC [27]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 0.10 nM
Method Description
In vitro cytotoxicity was measured by incubating 5000 target cells with indicated agents in complete RPMI-1640 media for 5 days at 37°C. The viability of remaining cells was determined by a colorimetric WST-11 assay.
In Vivo Model DoHH2 CDX model
In Vitro Model Mantle cell lymphoma Granta-519 cells CVCL_1818
Experiment 3 Reporting the Activity Date of This ADC [27]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 0.10 nM
Method Description
In vitro cytotoxicity was measured by incubating 5000 target cells with indicated agents in complete RPMI-1640 media for 5 days at 37°C. The viability of remaining cells was determined by a colorimetric WST-8 assay.
In Vivo Model DoHH2 CDX model
In Vitro Model Burkitt lymphoma BJAB cells CVCL_5711
Experiment 4 Reporting the Activity Date of This ADC [27]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 0.10 nM Positive CD38 expression (CD38+++/++)
Method Description
In vitro cytotoxicity was measured by incubating 5000 target cells with indicated agents in complete RPMI-1640 media for 5 days at 37°C. The viability of remaining cells was determined by a colorimetric WST-9 assay.
In Vivo Model DoHH2 CDX model
In Vitro Model Diffuse large B-cell lymphoma Farage cells CVCL_3302
Experiment 5 Reporting the Activity Date of This ADC [27]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 1.00 nM
Method Description
In vitro cytotoxicity was measured by incubating 5000 target cells with indicated agents in complete RPMI-1640 media for 5 days at 37°C. The viability of remaining cells was determined by a colorimetric WST-12 assay.
In Vivo Model DoHH2 CDX model
In Vitro Model Mantle cell lymphoma JVM-2 cells CVCL_1319
Lorvotuzumab mertansine [Phase 2]
Identified from the Human Clinical Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [23]
Efficacy Data Objective Response Rate (ORR)
28.30%
Positive CD56 expression (CD56+++/++)
Patients Enrolled
Relapsed and/or Refractory CD-56-positive Multiple Myeloma.
Administration Dosage
40 mg/m2 (up to a maximum of 140 mg) intravenously once every 3 weeks.
Related Clinical Trial
NCT Number NCT00346255  Phase Status Phase 1
Clinical Description
BB-10901 in treating patients with relapsed and/or refractory multiple myeloma (IMGN901).
Primary Endpoint
Objective response rate=28.30%.
Other Endpoint
Median progression-free survival=26.10 months (95% CI 1-89 weeks).
AVID-100 [Phase 2]
Identified from the Human Clinical Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [25]
Patients Enrolled
Patients with advanced or metastatic epithelial malignancies.
Administration Dosage
20, 40, 80, 120, 180, and 220 mg/m2 every 3 weeks.
Related Clinical Trial
NCT Number NCT03094169  Phase Status Phase 1/2
Clinical Description
Phase 1a/2a dose escalation trial to determine safety, tolerance, MTD, and preliminary antineoplastic activity of AVID100, in patients with advanced or metastatic solid tumors of epithelial origin.
B-003 [Phase 2]
Identified from the Human Clinical Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [26]
Related Clinical Trial
NCT Number NCT03953833  Phase Status Phase 1
Clinical Description
Phase 1 clinical trial on the safety, tolerability, pharmacokinetics of B003 in the treatment of HER2-positive recurrent or metastatic breast cancer.
AMG-224 [Phase 1]
Identified from the Human Clinical Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [28]
Efficacy Data Objective Response Rate (ORR)
23.00% (heavily pretreated population of patients with R/R MM with a median of seven lines of prior therapy)
60.00% (in a phase 1 trial of GSK2857916)
Patients Enrolled
Relapsed or refractory (R/R) multiple myeloma (MM).
Administration Dosage
Every 3 weeks (Q3W) at prespecified doses of 30-300 mg in a 3+3 design.
Related Clinical Trial
NCT Number NCT02561962  Phase Status Phase 1
Clinical Description
A phase 1 first in human study evaluating the safety, tolerability, pharmacokinetics and pharmacodynamics of AMG 224 in subjects with relapsed or refractory multiple myeloma.
Primary Endpoint
AmG 224 was generally well tolerated up to 190 mg Q3W.
Other Endpoint
ORR=23.00% (95% CI,11.00-39.00%), including six responses in dose escalation and three responses in the dose expansion. Two (5.00%) patients were CR and 7 (18.00%) patients were PR.
Experiment 2 Reporting the Activity Date of This ADC [29]
Related Clinical Trial
NCT Number NCT02561962  Phase Status Phase 1
Clinical Description
A phase 1 first in human study evaluating the safety, tolerability, pharmacokinetics and pharmacodynamics of AMG 224 in subjects with relapsed or refractory multiple myeloma.
SHR-A1201 [Phase 1]
Identified from the Human Clinical Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [30]
Patients Enrolled
HER2-positive locally advanced or metastatic breast cancer (positivity for HER2 was defined as a score of 2+ in immunohistochemical analysis and a positive result in fluorescence in situ hybridization or a score of 3+ in immunohistochemical analysis), the standard treatment was invalid or there was no effective standard treatment plan, the Eastern Cooperative Oncology Group performance status score was 0-1.

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Administration Dosage
4 dose-escalation sequences, 1.20 mg/kg, 2.40 mg/kg, 3.60 mg/kg and 4.80 mg/kg, once every 21days, as a 90-min intravenous infusion.
16A5-MCC-DM1 [Phase 1]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [31]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 59.90% (Day 25) High CD205 expression (CD205+++; IHC 3+)
Method Description
The antitumor activity of the ADCs was then evaluated in solid and hematologic mouse xenograft models. A total of 5x106-2x107 cells with or without Matrigel, were injected subcutaneously into the flanks of mice. The treatments were started when average tumor volume reached 88-300 mm3. Animals were randomly assigned into groups (6 mice/group), and treated with MEN1309/OBT076 intravenously once weekly for 2 consecutive weeks, 10 mg/kg.

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In Vivo Model Diffuse Large B-Cell Lymphoma CDX model
In Vitro Model EBV-related Burkitt lymphoma Raji cells CVCL_0511
Experiment 2 Reporting the Activity Date of This ADC [31]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 77.10% (Day 25) High CD205 expression (CD205+++; IHC 3+)
Method Description
The antitumor activity of the ADCs was then evaluated in solid and hematologic mouse xenograft models. A total of 5x106-2x107 cells with or without Matrigel, were injected subcutaneously into the flanks of mice. The treatments were started when average tumor volume reached 88-300 mm3. Animals were randomly assigned into groups (6 mice/group), and treated with MEN1309/OBT076 intravenously with a single dose, 10 mg/kg.

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In Vivo Model Pancreas cancer CDX model
In Vitro Model Pancreatic cancer Pancreatic cancer cells Homo sapiens
ICAM1-DM1 ADC [Clinical candidate]
Revealed Based on the Cell Line Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [32]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.00 nM
Positive ICAM1 expression (ICAM1+++/++)
Method Description
Cells were plated in 96-well tissue culture plates (SigmaAldrich) 1 day before treatment, serum-starved, and treated with serially diluted Tras-Me-PRX (10 mg/mL antibody) for 24 h.
In Vitro Model Pancreatic ductal adenocarcinoma BxPC-3 cells CVCL_0186
Experiment 2 Reporting the Activity Date of This ADC [32]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
9.80 nM
Positive ICAM1 expression (ICAM1+++/++)
Method Description
Cells were plated in 96-well tissue culture plates (SigmaAldrich) 1 day before treatment, serum-starved, and treated with serially diluted Tras-Me-PRX (10 mg/mL antibody) for 24 h.
In Vitro Model Pancreatic ductal adenocarcinoma PANC-1 cells CVCL_0480
Experiment 3 Reporting the Activity Date of This ADC [32]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100 nM Positive ICAM1 expression (ICAM1+++/++)
Method Description
Cells were plated in 96-well tissue culture plates (SigmaAldrich) 1 day before treatment, serum-starved, and treated with serially diluted Tras-Me-PRX (10 mg/mL antibody) for 24 h.
In Vitro Model Normal hTERT-HPNE cells CVCL_C466
Anti-FGFR2/4 mAb-12425 SMCC-DM1 [Investigative]
Discovered Using Patient-derived Xenograft Model
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 9.18% (Day 44) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 208.4 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 5 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model Breast cancer PDX model
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 60.63% (Day 30) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 208.4 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 10 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model Gastric cancer PDX model (PDX: CHGA-010)
Experiment 3 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 73.73% (Day 30) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 208.4 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 10 mg/kg intravenous (i.v, q3w x2) injection of one antibody drug conjugates.

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In Vivo Model Gastric cancer PDX model (PDX: CHGA-010)
Experiment 4 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 81.30% (Day 44) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 208.4 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 15 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model Breast cancer PDX model
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 52.51% (Day 38) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 208.4 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 10 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model MFM223 CDX model
In Vitro Model Breast carcinoma MFM-223 cells CVCL_1408
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 63.93% (Day 22) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 171.7 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 5 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model NCI-H716 CDX model
In Vitro Model Cecum adenocarcinoma NCI-H716 cells CVCL_1581
Experiment 3 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 66.08% (Day 22) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 171.7 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 15 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model NCI-H716 CDX model
In Vitro Model Cecum adenocarcinoma NCI-H716 cells CVCL_1581
Experiment 4 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 97.41% (Day 33) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 6 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.1-0.7 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Cecum adenocarcinoma NCI-H716 cells CVCL_1581
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.15 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
Experiment 3 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.17 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Breast carcinoma SUM52PE cells CVCL_3425
Experiment 4 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 0.20 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 5 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.00 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Breast carcinoma MFM-223 cells CVCL_1408
Experiment 6 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 30.00 nM Negative FGFR2 expression (FGFR2-)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric carcinoma NUGC-3 cells CVCL_1612
SNS-622-DM1 [Investigative]
Discovered Using Patient-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [34]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 36.75% (Day 56) Positive ASPH expression (ASPH +++/++)
Method Description
Mice bearing an approximately 100 mm3 tumor xenograft were intravenously injected weekly with 2.5 mg/kg of SNS-622 or SNS-622-DM1, and tumor growth was monitored.
In Vivo Model Pancreatic ductal adenocarcinoma PDX model
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [34]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 55.56% (Day 22) Positive ASPH expression (ASPH +++/++)
Method Description
MIA PaCa2-empty vector and MIA-PaCa2-ASPH cell lines generated sc tumors in the NSG mice were treated with SNS-622-DM1 (5 mg/kg. every 7 day) and a non-relevant IgG mAb also conjugated with DM1.
In Vivo Model MIA PaCa2 CDX model
In Vitro Model Pancreatic ductal adenocarcinoma MIA PaCa-2 cells CVCL_0428
B-B4-DM1 [Investigative]
Discovered Using Patient-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [35]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 87.90% Positive CD138 expression (CD138+++/++)
Method Description
The in vivo antitumor activity of B-B4-DM1 was evaluated in a CD138 positive OPM1 and OPM2 MM cells xenograft models. CB-17 SCID mice were inoculated subcutaneously in the interscapular area with 5x106 OPM1 (A-B) or OPM2 (C-D) MM cells. Animals were treated daily intravenously for 3 consecutive days with either vehicle alone (PBS; n = 5), unconjugated B-B4 (13.3 ug/kg; n = 5), B-B4DM1 (150 ug DM1/kg; n = 5), or control huC242-DM1 (150 ug DM1/kg; n = 5).

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In Vivo Model Multiple myeloma PDX model (PDX: OPM2)
In Vitro Model Multiple myeloma Multiple myeloma cells Homo sapiens
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [35]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 27.30% Positive CD138 expression (CD138+++/++)
Method Description
The in vivo antitumor activity of B-B4-DM1 was evaluated in a CD138 positive OPM1 and OPM2 MM cells xenograft models. CB-17 SCID mice were inoculated subcutaneously in the interscapular area with 5x106 OPM1 (A-B) or OPM2 (C-D) MM cells. Animals were treated daily intravenously for 3 consecutive days with either vehicle alone (PBS; n = 5), unconjugated B-B4 (13.3 ug/kg; n = 5), B-B4DM1 (150 ug DM1/kg; n = 5), or control huC242-DM1 (150 ug DM1/kg; n = 5).

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In Vivo Model CD138-expressing OPM1 MM cells xenograft model
In Vitro Model Multiple myeloma Multiple myeloma cells Homo sapiens
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [35]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
25.00 nM
Positive CD138 expression (CD138+++/++)
Method Description
The inhibitory activity of B-B4-DM1 against cancer cell growth was compared with B-B4 and DM1 against cancer cell growth in vitro. The cells were treated with B-B4-DM1, B-B4 and DM1 for 96 hours.
In Vitro Model Plasma cell myeloma MM1.R cells CVCL_8794
C12G1-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 9 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [36]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 0.00% (Day 30) High NECTIN2 expression (NECTIN2+++)
Method Description
Treatments c12G1-DM1 at 1 mg/kg every 4th day by intraperitoneal injection.
In Vivo Model Ovarian cancer CDX model
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
Experiment 2 Reporting the Activity Date of This ADC [36]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 0.00% (Day 30) High NECTIN2 expression (NECTIN2+++)
Method Description
Treatments c12G1-DM1 at 5 mg/kg every 4th day by intraperitoneal injection.
In Vivo Model Ovarian cancer CDX model
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
Experiment 3 Reporting the Activity Date of This ADC [36]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 10.40% (Day 30) High NECTIN2 expression (NECTIN2+++)
Method Description
Treatments c12G1-DM1 at 3 mg/kg every 4th day by intraperitoneal injection.
In Vivo Model Ovarian cancer CDX model
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
Experiment 4 Reporting the Activity Date of This ADC [36]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 11.50% (Day 30) High NECTIN2 expression (NECTIN2+++)
Method Description
Treatments c12G1-DM1 at 1 mg/kg every 4th day by intraperitoneal injection.
In Vivo Model Ovarian cancer CDX model
In Vitro Model Ovarian cancer Ovarian cancer cells Homo sapiens
Experiment 5 Reporting the Activity Date of This ADC [36]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 19.60% (Day 30) High NECTIN2 expression (NECTIN2+++)
Method Description
Treatments c12G1-DM1 at 5 mg/kg every 4th day by intraperitoneal injection.
In Vivo Model Ovarian cancer CDX model
In Vitro Model Ovarian cancer Ovarian cancer cells Homo sapiens
Experiment 6 Reporting the Activity Date of This ADC [36]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 32.90% (Day 30) High NECTIN2 expression (NECTIN2+++)
Method Description
Treatments c12G1-DM1 at 1 mg/kg every 4th day by intraperitoneal injection.
In Vivo Model Ovarian cancer CDX model
In Vitro Model Ovarian adenocarcinoma OV-90 cells CVCL_3768
Experiment 7 Reporting the Activity Date of This ADC [36]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 46.40% (Day 30) High NECTIN2 expression (NECTIN2+++)
Method Description
Treatments c12G1-DM1 at 3 mg/kg every 4th day by intraperitoneal injection.
In Vivo Model Ovarian cancer CDX model
In Vitro Model Ovarian cancer Ovarian cancer cells Homo sapiens
Experiment 8 Reporting the Activity Date of This ADC [36]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 84.40% (Day 30) High NECTIN2 expression (NECTIN2+++)
Method Description
Treatments c12G1-DM1 at 3 mg/kg every 4th day by intraperitoneal injection.
In Vivo Model Ovarian cancer CDX model
In Vitro Model Ovarian adenocarcinoma OV-90 cells CVCL_3768
Experiment 9 Reporting the Activity Date of This ADC [36]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 88.90% (Day 30) High NECTIN2 expression (NECTIN2+++)
Method Description
Treatments c12G1-DM1 at 5 mg/kg every 4th day by intraperitoneal injection.
In Vivo Model Ovarian cancer CDX model
In Vitro Model Ovarian adenocarcinoma OV-90 cells CVCL_3768
NN2101-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 9 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [37]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 2.01% (Day 20) Positive KIT expression (KIT+++/++)
Method Description
The animal room had a controlled 12/12-h light/dark cycle (lights on at 06:00 AM), temperature (20±26 °C), and relativehumidity (50±10%). For xenograft assays, mice were anesthetized with isoflurane. Then, cells in 50% Matrigel were subcutaneously transplanted into 5-week-old female C.B-17 severe combined immunodeficiency (SCID) mice. In vivo efficacy studies were initiated when the volume of the tumors reached ~ 200 mm3. Imatinib was formulated in distilled water for oral administration. The mice were intravenously administered NN2101-DM1 three times at the indicated concentrations,2 mg/kg.

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In Vivo Model GIST xenograft model
In Vitro Model Mast cell leukemia HMC-1.2 cells CVCL_H205
Experiment 2 Reporting the Activity Date of This ADC [37]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 12.30% (Day 50) Positive KIT expression (KIT+++/++)
Method Description
The animal room had a controlled 12/12-h light/dark cycle (lights on at 06:00 AM), temperature (20±26 °C), and relativehumidity (50±10%). For xenograft assays, mice were anesthetized with isoflurane. Then, cells in 50% Matrigel were subcutaneously transplanted into 5-week-old female C.B-17 severe combined immunodeficiency (SCID) mice. In vivo efficacy studies were initiated when the volume of the tumors reached ~ 200 mm3. Imatinib was formulated in distilled water for oral administration. The mice were intravenously administered NN2101-DM1 three times at the indicated concentrations,1 mg/kg.

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In Vivo Model GIST xenograft model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 3 Reporting the Activity Date of This ADC [37]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 20.50% (Day 27) Positive KIT expression (KIT+++/++)
Method Description
The animal room had a controlled 12/12-h light/dark cycle (lights on at 06:00 AM), temperature (20±26 °C), and relativehumidity (50±10%). For xenograft assays, mice were anesthetized with isoflurane. Then, cells in 50% Matrigel were subcutaneously transplanted into 5-week-old female C.B-17 severe combined immunodeficiency (SCID) mice. In vivo efficacy studies were initiated when the volume of the tumors reached ~ 200 mm3. Imatinib was formulated in distilled water for oral administration. The mice were intravenously administered NN2101-DM1 three times at the indicated concentrations,3 mg/kg.

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In Vivo Model SCLC xenograft model
In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 4 Reporting the Activity Date of This ADC [37]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 50.40% (Day 50) Positive KIT expression (KIT+++/++)
Method Description
The animal room had a controlled 12/12-h light/dark cycle (lights on at 06:00 AM), temperature (20±26 °C), and relativehumidity (50±10%). For xenograft assays, mice were anesthetized with isoflurane. Then, cells in 50% Matrigel were subcutaneously transplanted into 5-week-old female C.B-17 severe combined immunodeficiency (SCID) mice. In vivo efficacy studies were initiated when the volume of the tumors reached ~ 200 mm3. Imatinib was formulated in distilled water for oral administration. The mice were intravenously administered NN2101-DM1 three times at the indicated concentrations,1 mg/kg.

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In Vivo Model GIST xenograft model
In Vitro Model Adult hepatocellular carcinoma Huh-7 cells CVCL_0336
Experiment 5 Reporting the Activity Date of This ADC [37]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 61.30% (Day 60) Positive KIT expression (KIT+++/++)
Method Description
The animal room had a controlled 12/12-h light/dark cycle (lights on at 06:00 AM), temperature (20±26 °C), and relativehumidity (50±10%). For xenograft assays, mice were anesthetized with isoflurane. Then, cells in 50% Matrigel were subcutaneously transplanted into 5-week-old female C.B-17 severe combined immunodeficiency (SCID) mice. In vivo efficacy studies were initiated when the volume of the tumors reached ~ 200 mm3. Imatinib was formulated in distilled water for oral administration. The mice were intravenously administered NN2101-DM1 three times at the indicated concentrations,3.5 mg/kg.

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In Vivo Model GIST xenograft model
In Vitro Model Mast cell leukemia HMC-1.2 cells CVCL_H205
Experiment 6 Reporting the Activity Date of This ADC [37]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 61.30% (Day 60) Positive KIT expression (KIT+++/++)
Method Description
The animal room had a controlled 12/12-h light/dark cycle (lights on at 06:00 AM), temperature (20±26 °C), and relativehumidity (50±10%). For xenograft assays, mice were anesthetized with isoflurane. Then, cells in 50% Matrigel were subcutaneously transplanted into 5-week-old female C.B-17 severe combined immunodeficiency (SCID) mice. In vivo efficacy studies were initiated when the volume of the tumors reached ~ 200 mm3. Imatinib was formulated in distilled water for oral administration. The mice were intravenously administered NN2101-DM1 three times at the indicated concentrations,5 mg/kg.

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In Vivo Model GIST xenograft model
In Vitro Model Mast cell leukemia HMC-1.2 cells CVCL_H205
Experiment 7 Reporting the Activity Date of This ADC [37]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 87.90% (Day 50) Positive KIT expression (KIT+++/++)
Method Description
The animal room had a controlled 12/12-h light/dark cycle (lights on at 06:00 AM), temperature (20±26 °C), and relativehumidity (50±10%). For xenograft assays, mice were anesthetized with isoflurane. Then, cells in 50% Matrigel were subcutaneously transplanted into 5-week-old female C.B-17 severe combined immunodeficiency (SCID) mice. In vivo efficacy studies were initiated when the volume of the tumors reached ~ 200 mm3. Imatinib was formulated in distilled water for oral administration. The mice were intravenously administered NN2101-DM1 three times at the indicated concentrations,3 mg/kg.

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In Vivo Model GIST xenograft model
In Vitro Model Adult hepatocellular carcinoma Huh-7 cells CVCL_0336
Experiment 8 Reporting the Activity Date of This ADC [37]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 90.10% (Day 50) Positive KIT expression (KIT+++/++)
Method Description
The animal room had a controlled 12/12-h light/dark cycle (lights on at 06:00 AM), temperature (20±26 °C), and relativehumidity (50±10%). For xenograft assays, mice were anesthetized with isoflurane. Then, cells in 50% Matrigel were subcutaneously transplanted into 5-week-old female C.B-17 severe combined immunodeficiency (SCID) mice. In vivo efficacy studies were initiated when the volume of the tumors reached ~ 200 mm3. Imatinib was formulated in distilled water for oral administration. The mice were intravenously administered NN2101-DM1 three times at the indicated concentrations,3 mg/kg. The mice were intraperitoneally administered Etoposide was prepared in dimethyl sulfoxide, and the solution was diluted in PBS just before administration. The mice were intraperitoneally administered etoposide for 2 cycles (3 mg/kg per day;days 15 and days 1115).

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In Vivo Model GIST xenograft model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 9 Reporting the Activity Date of This ADC [37]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 94.30% (Day 27) Positive KIT expression (KIT+++/++)
Method Description
The animal room had a controlled 12/12-h light/dark cycle (lights on at 06:00 AM), temperature (20±26 °C), and relativehumidity (50±10%). For xenograft assays, mice were anesthetized with isoflurane. Then, cells in 50% Matrigel were subcutaneously transplanted into 5-week-old female C.B-17 severe combined immunodeficiency (SCID) mice. In vivo efficacy studies were initiated when the volume of the tumors reached ~ 200 mm3. Imatinib was formulated in distilled water for oral administration. The mice were intravenously administered NN2101-DM1 three times at the indicated concentrations,3 mg/kg. The mice were intraperitoneally administered Etoposide was prepared in dimethyl sulfoxide, and the solution was diluted in PBS just before administration. The mice were intraperitoneally administered etoposide for 2 cycles (3 mg/kg per day;days 15 and days 1115).

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In Vivo Model SCLC xenograft model
In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Revealed Based on the Cell Line Data
Click To Hide/Show 19 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.38 ng/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 2 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.43 ng/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Gastrointestinal stromal tumor GIST-430/654 cells CVCL_7040
Experiment 3 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.02 ng/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 4 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
8.07 ng/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 5 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.77 ug/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Mast cell leukemia HMC-1.2 cells CVCL_H205
Experiment 6 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.18 ug/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 7 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.52 ug/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Ovarian serous adenocarcinoma Caov-3 cells CVCL_0201
Experiment 8 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.54 ug/mL
Negative KIT expression (KIT-)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Breast adenocarcinoma MDA-MB-468 cells CVCL_0419
Experiment 9 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.99 ug/mL
Negative KIT expression (KIT-)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Experiment 10 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
3.71 ug/mL
Negative KIT expression (KIT-)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Lung squamous cell carcinoma NCI-H2170 cells CVCL_1535
Experiment 11 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.03 ug/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Ovarian serous adenocarcinoma OVCAR-3 cells CVCL_0465
Experiment 12 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.30 ug/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
Experiment 13 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.47 ug/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 14 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
7.38 ug/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Esophageal squamous cell carcinoma TF-1 cells CVCL_1759
Experiment 15 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
11.84 ug/mL
Negative KIT expression (KIT-)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Normal COS-7 cells CVCL_0224
Experiment 16 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
11.95 ug/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Normal HUVEC-C cells CVCL_2959
Experiment 17 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
12.47 ug/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Lung small cell carcinoma NCI-H889 cells CVCL_1598
Experiment 18 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
17.49 ug/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Gastrointestinal stromal tumor GIST48 cells CVCL_7041
Experiment 19 Reporting the Activity Date of This ADC [37]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
17.63 ug/mL
Positive KIT expression (KIT+++/++)
Method Description
For apoptosis assays, the cells were seeded into 96-well plates and incubated in a humidified CO2 chamber for 16 h. The cells were incubated with vehicle, NN2101-DM1 (1g/mL) for 72 h.
In Vitro Model Lung small cell carcinoma Ms-1 cells CVCL_IQ55
Anti-FGFR2 mAb-10164 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 2.05% (Day 22) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 171.7 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 5 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model NCI-H716 CDX model
In Vitro Model Cecum adenocarcinoma NCI-H716 cells CVCL_1581
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 57.22% (Day 22) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 171.7 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 15 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model NCI-H716 CDX model
In Vitro Model Cecum adenocarcinoma NCI-H716 cells CVCL_1581
Experiment 3 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 65.68% (Day 38) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 208.4 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 10 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model MFM223 CDX model
In Vitro Model Breast carcinoma MFM-223 cells CVCL_1408
Experiment 4 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 93.61% (Day 33) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 6 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.14 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Breast carcinoma SUM52PE cells CVCL_3425
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.50 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 3 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.60 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
Experiment 4 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.70 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Cecum adenocarcinoma NCI-H716 cells CVCL_1581
Experiment 5 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
3.50 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Breast carcinoma MFM-223 cells CVCL_1408
Experiment 6 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 30.00 nM Negative FGFR2 expression (FGFR2-)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric carcinoma NUGC-3 cells CVCL_1612
2G10 RED-432 maytansine 4 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [38]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 2.75% (Day 56) Positive PLAUR expression (PLAUR +++/++)
Method Description
To compare the in vivo anti-tumor efficacy of the various ADC constructs, we used MDA-MB-231 xenografts in mice. Animals with tumors of approximately 100 mm3 were treated once a week for four weeks with a 10 mg/kg dose of a variety of DAR 4 ADCs or 2G10 antibody.
In Vivo Model MDA-MB-231 CDX model
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [38]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 500 nM Positive PLAUR expression (PLAUR +++/++)
Method Description
MDA-MB-231 cells (0.5x104 cells/well) were seeded in 96-well plates at the density and incubated for 120 h (5 days) with of ADCs or IgG. After 5 days of drug treatment at 37°C with 5% CO2.
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
F105-SPP-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 17.58% (Day 49) Positive ITGAV expression (ITGAV +++/++)
Method Description
The rear flank region of female athymic rats were implanted with 5x106 cells subcutaneously (0.2 ml of25 x106 cells/ml) on the rear flank area. When mean tumor volumes reached to 250 mm3, dosed intravenously (15 mg/kg) on days 17 and 29 after tumor cell injection.
In Vivo Model A549 CDX model
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 2 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 20.88% (Day 37) Positive ITGAV expression (ITGAV +++/++)
Method Description
Female athymic rats were inoculated with 5x106 HT29 cells subcutancously on the rear flank area. The animals were stratified into 13 groups, 6 animals per group based on a mean tumor volume for each group of approximately 250 mm3. On the day of grouping (day 7) each group received its initial dosing (175 ug/kg).
In Vivo Model HT-29 CDX model
In Vitro Model Colon cancer HT29 cells CVCL_A8EZ
F105-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 17.58% (Day 49) Positive ITGAV expression (ITGAV +++/++)
Method Description
The rear flank region of female athymic rats were implanted with 5x106 cells subcutaneously (0.2 ml of25 x106 cells/ml) on the rear flank area. When mean tumor volumes reached to 250 mm3, dosed intravenously (15 mg/kg) on days 17 and 29 after tumor cell injection.
In Vivo Model A549 CDX model
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Anti-KIT NEG085?SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 11 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 20.12% (Day 28) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (1.25 mg/kg).

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In Vivo Model GIST430 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 32.28% (Day 38) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (1.25 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 39.65% (Day 28) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (2.5 mg/kg).

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In Vivo Model GIST430 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 4 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 69.09% (Day 28) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (5 mg/kg).

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In Vivo Model GIST430 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 5 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 72.00% (Day 41) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (0.625 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 6 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 75.90% (Day 38) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (2.5 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 7 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 77.25% (Day 38) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (5 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 8 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 79.31% (Day 21) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (1.25 mg/kg).

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In Vivo Model NCI-H526 CDX model
In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 9 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 81.81% (Day 27) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 NCI-H1048 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of 2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (2.0 mg/kg).

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In Vivo Model NCI-H1048 CDX model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 10 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 95.44% (Day 21) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (2.5 mg/kg).

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In Vivo Model NCI-H526 CDX model
In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 11 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 99.51% (Day 21) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (5 mg/kg).

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In Vivo Model NCI-H526 CDX model
In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Revealed Based on the Cell Line Data
Click To Hide/Show 16 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
59.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
71.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST882 cells CVCL_7044
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
76.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 4 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
80.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia Kasumi-6 cells CVCL_0614
Experiment 5 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
90.00%
Negative KIT expression (KIT-)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Experiment 6 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
98.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 7 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 8 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 9 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.01 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 10 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.03 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 11 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.04 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 12 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.47 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST882 cells CVCL_7044
Experiment 13 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.55 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 14 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.64 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia Kasumi-6 cells CVCL_0614
Experiment 15 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.82 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 16 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
46.83 nM
Negative KIT expression (KIT-)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
HcHAb18-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 8 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [41]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 23.23% (Day 27) Positive CD147 expression (CD147 +++/++)
Method Description
HcHAb18-DM1 (1 mg/kg, twice a week for 4 weeks) induces efficient tumor cell killing in cell line-derived models of A549 cells with CD147 expression with high expression.
In Vivo Model A549 CDX model
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 2 Reporting the Activity Date of This ADC [41]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 23.23% (Day 27) Positive CD147 expression (CD147 +++/++)
Method Description
HcHAb18-DM1 (2 mg/kg, twice a week for 4 weeks) induces efficient tumor cell killing in cell line-derived models of A549 cells with CD147 expression with high expression.
In Vivo Model A549 CDX model
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 3 Reporting the Activity Date of This ADC [41]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 38.63% (Day 27) Positive CD147 expression (CD147 +++/++)
Method Description
HcHAb18-DM1 (4 mg/kg, twice a week for 4 weeks) induces efficient tumor cell killing in cell line-derived models of A549 cells with CD147 expression with high expression.
In Vivo Model A549 CDX model
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 4 Reporting the Activity Date of This ADC [41]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 56.95% (Day 27) Positive CD147 expression (CD147 +++/++)
Method Description
HcHAb18-DM1 (8 mg/kg, twice a week for 4 weeks) induces efficient tumor cell killing in cell line-derived models of A549 cells with CD147 expression with high expression.
In Vivo Model A549 CDX model
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 5 Reporting the Activity Date of This ADC [41]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 89.22% (Day 27) Positive CD147 expression (CD147 +++/++)
Method Description
HcHAb18-DM1 (16 mg/kg, twice a week for 4 weeks) induces efficient tumor cell killing in cell line-derived models of A549 cells with CD147 expression with high expression.
In Vivo Model A549 CDX model
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 6 Reporting the Activity Date of This ADC [41]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 94.2% (Day 29) Positive CD147 expression (CD147 +++/++)
Method Description
HcHAb18-DM1 (30 mg/kg, i.v. injection weekly in a total 4 doses) induces efficient tumor cell killing in cell line-derived models of NCI-H226 cells with CD147 expression with high expression.
In Vivo Model NCI-H226 CDX model
In Vitro Model Pleural epithelioid mesothelioma NCI-H226 cells CVCL_1544
Experiment 7 Reporting the Activity Date of This ADC [41]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 95.84% (Day 27) Positive CD147 expression (CD147 +++/++)
Method Description
HcHAb18-DM1 (32 mg/kg, twice a week for 4 weeks) induces efficient tumor cell killing in cell line-derived models of A549 cells with CD147 expression with high expression.
In Vivo Model A549 CDX model
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 8 Reporting the Activity Date of This ADC [41]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 97.40% (Day 14) Positive CD147 expression (CD147 +++/++)
Method Description
HcHAb18-DM1 (18 mg/kg, twice a week for 4 weeks) induces efficient tumor cell killing in cell line-derived models of NCI-H460 cells with CD147 expression with high expression.
In Vivo Model NCI-H460 CDX model
In Vitro Model Lung large cell carcinoma NCI-H460 cells CVCL_0459
Revealed Based on the Cell Line Data
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [41]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.46 ug/mL
Positive CD147 expression (CD147 +++/++)
Method Description
In vitro efficacy of HcHAb18-DM1 versus HcHAb18 and IgG1-DM1 on six cell lines treated for 72 h.
In Vitro Model Pleural epithelioid mesothelioma NCI-H226 cells CVCL_1544
Experiment 2 Reporting the Activity Date of This ADC [41]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.77 ug/mL
Positive CD147 expression (CD147 +++/++)
Method Description
In vitro efficacy of HcHAb18-DM1 versus HcHAb18 and IgG1-DM1 on six cell lines treated for 72 h.
In Vitro Model Lung large cell carcinoma NCI-H460 cells CVCL_0459
Experiment 3 Reporting the Activity Date of This ADC [41]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.96 ug/mL
Positive CD147 expression (CD147 +++/++)
Method Description
In vitro efficacy of HcHAb18-DM1 versus HcHAb18 and IgG1-DM1 on six cell lines treated for 72 h.
In Vitro Model Lung squamous cell carcinoma NCI-H520 cells CVCL_1566
Experiment 4 Reporting the Activity Date of This ADC [41]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
18.26 ug/mL
Positive CD147 expression (CD147 +++/++)
Method Description
In vitro efficacy of HcHAb18-DM1 versus HcHAb18 and IgG1-DM1 on six cell lines treated for 72 h.
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
CNTO95-SPP-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 8 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 28.74% (Day 35) Positive ITGAV expression (ITGAV +++/++)
Method Description
On the day of grouping (Day 0), animals were weighed and intravenously injectedwith control ADC at 25 mg/kg. All testand control articles were given in a volume of 1ml/100 gm of body weight. CNTO 364 at 3 mg/kg groups was administered i.v. on a q7dx5 schedule.
In Vivo Model A375.S2 CDX model
In Vitro Model Amelanotic melanoma A375.S2 cells CVCL_0136
Experiment 2 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 44.54% (Day 35) Positive ITGAV expression (ITGAV +++/++)
Method Description
On the day of grouping (Day 0), animals were weighed and intravenously injectedwith control ADC at 25 mg/kg. All testand control articles were given in a volume of 1ml/100 gm of body weight. CNTO 364 at 6 mg/kg groups was administered i.v. on a q7dx5 schedule.
In Vivo Model A375.S2 CDX model
In Vitro Model Amelanotic melanoma A375.S2 cells CVCL_0136
Experiment 3 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 45.81% (Day 37) Positive ITGAV expression (ITGAV +++/++)
Method Description
Female athymic rats were inoculated with 5x106 HT29 cells subcutancously on the rear flank area. The animals were stratified into 13 groups, 6 animals per group based on a mean tumor volume for each group of approximately 250 mm3. On the day of grouping (day 7) each group received its initial dosing (175 ug/kg).
In Vivo Model HT-29 CDX model
In Vitro Model Colon cancer HT29 cells CVCL_A8EZ
Experiment 4 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 71.21% (Day 24) Positive ITGAV expression (ITGAV +++/++)
Method Description
Nine-week-old athymic nude rats were subcutaneously inoculated with A375.S2human melanoma cells. ADC (5 mg/kg) andappropriate control compounds were intravenously injected (three injection every other day inthe first week followed by one injection per week for two weeks.
In Vivo Model A375.S2 CDX model
In Vitro Model Amelanotic melanoma A375.S2 cells CVCL_0136
Experiment 5 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 77.15% (Day 24) Positive ITGAV expression (ITGAV +++/++)
Method Description
Nine-week-old athymic nude rats were subcutaneously inoculated with A375.S2human melanoma cells. ADC (10 mg/kg) andappropriate control compounds were intravenously injected (three injection every other day inthe first week followed by one injection per week for two weeks.
In Vivo Model A375.S2 CDX model
In Vitro Model Amelanotic melanoma A375.S2 cells CVCL_0136
Experiment 6 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 87.23% (Day 35) Positive ITGAV expression (ITGAV +++/++)
Method Description
On the day of grouping (Day 0), animals were weighed and intravenously injectedwith control ADC at 25 mg/kg. All testand control articles were given in a volume of 1ml/100 gm of body weight. CNTO 364 at 10 mg/kg groups was administered i.v. on a q7dx5 schedule.
In Vivo Model A375.S2 CDX model
In Vitro Model Amelanotic melanoma A375.S2 cells CVCL_0136
Experiment 7 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 95.10% (Day 49) Positive ITGAV expression (ITGAV +++/++)
Method Description
The rear flank region of female athymic rats were implanted with 5x106 cells subcutaneously (0.2 ml of25 x106 cells/ml) on the rear flank area. When mean tumor volumes reached to 250 mm3, dosed intravenously (15 mg/kg) on days 17 and 29 after tumor cell injection.
In Vivo Model A549 CDX model
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 8 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 95.81% (Day 35) Positive ITGAV expression (ITGAV +++/++)
Method Description
On the day of grouping (Day 0), animals were weighed and intravenously injectedwith control ADC at 25 mg/kg. All testand control articles were given in a volume of 1ml/100 gm of body weight. CNTO 364 at 15 mg/kg groups was administered i.v. on a q7dx5 schedule.
In Vivo Model A375.S2 CDX model
In Vitro Model Amelanotic melanoma A375.S2 cells CVCL_0136
Revealed Based on the Cell Line Data
Click To Hide/Show 5 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [39]
Efficacy Data Half Maximal Effective Concentration (EC50)
1.00 ug/mL
Positive ITGAV expression (ITGAV +++/++)
Method Description
Cells were seeded into white 96-well tissue culture plates (5000 cells/well)in culture medium and incubated for 16 hrs. Serial dilutions of immunoconjugates were added toeach appropraite wells (0-20 ug/ml). Tissue culture plates were incubated at 37°C for 96 hrs.
In Vitro Model Colon cancer HT29 cells CVCL_A8EZ
Experiment 2 Reporting the Activity Date of This ADC [39]
Efficacy Data Half Maximal Effective Concentration (EC50)
1.20 ug/mL
Positive ITGAV expression (ITGAV +++/++)
Method Description
Cells were seeded into white 96-well tissue culture plates (5000 cells/well)in culture medium and incubated for 16 hrs. Serial dilutions of immunoconjugates were added toeach appropraite wells (0-20 ug/ml). Tissue culture plates were incubated at 37°C for 96 hrs.
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 3 Reporting the Activity Date of This ADC [39]
Efficacy Data Half Maximal Effective Concentration (EC50)
0.19 mg/mL
Positive ITGAV expression (ITGAV +++/++)
Method Description
Cells were harvested, rinsedsuspended in serum free DMEM, and sequentially incubated for 60 minutes on ice with serialdiluted CNTO 95,CNTO 364, CNTO 365 and CNTO 366 and FITC-labeled anti-humanantibody (10 mg/ml).
In Vitro Model Colon cancer HT29 cells CVCL_A8EZ
Experiment 4 Reporting the Activity Date of This ADC [39]
Efficacy Data Half Maximal Effective Concentration (EC50)
0.27 mg/mL
Positive ITGAV expression (ITGAV +++/++)
Method Description
Cells were harvested, rinsedsuspended in serum free DMEM, and sequentially incubated for 60 minutes on ice with serialdiluted CNTO 95,CNTO 364, CNTO 365 and CNTO 366 and FITC-labeled anti-humanantibody (10 mg/ml).
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 5 Reporting the Activity Date of This ADC [39]
Efficacy Data Half Maximal Effective Concentration (EC50)
0.27 mg/mL
Positive ITGAV expression (ITGAV +++/++)
Method Description
Cells were harvested, rinsedsuspended in serum free DMEM, and sequentially incubated for 60 minutes on ice with serialdiluted CNTO 95,CNTO 364, CNTO 365 and CNTO 366 and FITC-labeled anti-humanantibody (10 mg/ml).
In Vitro Model Ovarian endometrioid adenocarcinoma A2780 cells CVCL_0134
CNTO95-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 28.74% (Day 35) Positive ITGAV expression (ITGAV +++/++)
Method Description
On the day of grouping (Day 0), animals were weighed and intravenously injectedwith control ADC at 25 mg/kg. All testand control articles were given in a volume of 1ml/100 gm of body weight. CNTO 364 at 3 mg/kg groups was administered i.v. on a q7dx5 schedule.
In Vivo Model A375.S2 CDX model
In Vitro Model Amelanotic melanoma A375.S2 cells CVCL_0136
Experiment 2 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 44.54% (Day 35) Positive ITGAV expression (ITGAV +++/++)
Method Description
On the day of grouping (Day 0), animals were weighed and intravenously injectedwith control ADC at 25 mg/kg. All testand control articles were given in a volume of 1ml/100 gm of body weight. CNTO 364 at 6 mg/kg groups was administered i.v. on a q7dx5 schedule.
In Vivo Model A375.S2 CDX model
In Vitro Model Amelanotic melanoma A375.S2 cells CVCL_0136
Experiment 3 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 87.23% (Day 35) Positive ITGAV expression (ITGAV +++/++)
Method Description
On the day of grouping (Day 0), animals were weighed and intravenously injectedwith control ADC at 25 mg/kg. All testand control articles were given in a volume of 1ml/100 gm of body weight. CNTO 364 at 10 mg/kg groups was administered i.v. on a q7dx5 schedule.
In Vivo Model A375.S2 CDX model
In Vitro Model Amelanotic melanoma A375.S2 cells CVCL_0136
Experiment 4 Reporting the Activity Date of This ADC [39]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 95.81% (Day 35) Positive ITGAV expression (ITGAV +++/++)
Method Description
On the day of grouping (Day 0), animals were weighed and intravenously injectedwith control ADC at 25 mg/kg. All testand control articles were given in a volume of 1ml/100 gm of body weight. CNTO 364 at 15 mg/kg groups was administered i.v. on a q7dx5 schedule.
In Vivo Model A375.S2 CDX model
In Vitro Model Amelanotic melanoma A375.S2 cells CVCL_0136
2G10 RED-106 maytansine 4 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [38]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 30.42% (Day 56) Positive PLAUR expression (PLAUR +++/++)
Method Description
To compare the in vivo anti-tumor efficacy of the various ADC constructs, we used MDA-MB-231 xenografts in mice. Animals with tumors of approximately 100 mm3 were treated once a week for four weeks with a 10 mg/kg dose of a variety of DAR 4 ADCs or 2G10 antibody.
In Vivo Model MDA-MB-231 CDX model
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [38]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 500 nM Positive PLAUR expression (PLAUR +++/++)
Method Description
MDA-MB-231 cells (0.5x104 cells/well) were seeded in 96-well plates at the density and incubated for 120 h (5 days) with of ADCs or IgG. After 5 days of drug treatment at 37°C with 5% CO2.
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Anti-FGFR2/4 mAb-12422 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 30.85% (Day 22) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 171.7 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 5 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model NCI-H716 CDX model
In Vitro Model Cecum adenocarcinoma NCI-H716 cells CVCL_1581
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 35.79% (Day 22) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 171.7 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 15 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model NCI-H716 CDX model
In Vitro Model Cecum adenocarcinoma NCI-H716 cells CVCL_1581
Experiment 3 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 80.52% (Day 33) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 3.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 3.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
Mirvetuximab-SPP-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [42]
Efficacy Data Tumor Growth Inhibition value (TGI)
32.17% (Day 30)
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Animals with established tumors of about 130 mm3 were treated with intravenous single injection of the M9346A-DM conjugates at 2.5±0.2 mg/kg, equivalent to 51±3 ug conjugated maytansinoid per kg The conjugates were injected on day 20 after cell inoculation.
In Vivo Model FRalpha-positive KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [42]
Efficacy Data Tumor Growth Inhibition value (TGI)
50.00% (Day 32)
High FOLR1 expression (FOLR1+++; 1,300,000 FOLR1 molecules/cell)
Method Description
Animals with established tumors of about 130 mm3 were treated with intravenous single injection of the M9346A-DM conjugates at 2.5±0.2 mg/kg, equivalent to 51±3 ug conjugated maytansinoid per kg The conjugates were injected on day 7 after cell inoculation.
In Vivo Model Ovarian carcinoma Igrov-1 CDX model
In Vitro Model Ovarian endometrioid adenocarcinoma IGROV-1 cells CVCL_1304
Revealed Based on the Cell Line Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [42]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.11±0.04 nM
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Dilutions of conjugates or unconjugated maytansinoid in the appropriate culture medium were added to wells of 96-well flat-bottomed plates containing 1 x103 cells per well The plates were incubated at 37°C, 6% CO2 for either 5 days (continuos exposure) or for 4 hours followed by 5-day incubation in conjugate-free medium (short exposure). Cell viability was determined by the WST-8 assay in accordance with the manufacturer's protocol, and IC50 were generated using a sigmoidal dose-response (variable slope) nonlinear regression curve fit.

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In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [42]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.13±0.08 nM
Moderate FOLR1 expression (FOLR1++; 290,000 FOLR1 molecules/cell)
Method Description
Dilutions of conjugates or unconjugated maytansinoid in the appropriate culture medium were added to wells of 96-well flat-bottomed plates containing 1 x103 cells per well The plates were incubated at 37°C, 6% CO2 for either 5 days (continuos exposure) or for 4 hours followed by 5-day incubation in conjugate-free medium (short exposure). Cell viability was determined by the WST-8 assay in accordance with the manufacturer's protocol, and IC50 were generated using a sigmoidal dose-response (variable slope) nonlinear regression curve fit.

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In Vitro Model Gestational choriocarcinoma JEG-3 cells CVCL_0363
Experiment 3 Reporting the Activity Date of This ADC [42]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.14±0.05 nM
High FOLR1 expression (FOLR1+++; 1,300,000 FOLR1 molecules/cell)
Method Description
Dilutions of conjugates or unconjugated maytansinoid in the appropriate culture medium were added to wells of 96-well flat-bottomed plates containing 1 x103 cells per well The plates were incubated at 37°C, 6% CO2 for either 5 days (continuos exposure) or for 4 hours followed by 5-day incubation in conjugate-free medium (short exposure). Cell viability was determined by the WST-8 assay in accordance with the manufacturer's protocol, and IC50 were generated using a sigmoidal dose-response (variable slope) nonlinear regression curve fit.

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In Vitro Model Ovarian endometrioid adenocarcinoma IGROV-1 cells CVCL_1304
2G10 RED-425 maytansine 4 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [38]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 38.75% (Day 56) Positive PLAUR expression (PLAUR +++/++)
Method Description
To compare the in vivo anti-tumor efficacy of the various ADC constructs, we used MDA-MB-231 xenografts in mice. Animals with tumors of approximately 100 mm3 were treated once a week for four weeks with a 10 mg/kg dose of a variety of DAR 4 ADCs or 2G10 antibody.
In Vivo Model MDA-MB-231 CDX model
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [38]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
500 nM
Positive PLAUR expression (PLAUR +++/++)
Method Description
MDA-MB-231 cells (0.5x104 cells/well) were seeded in 96-well plates at the density and incubated for 120 h (5 days) with of ADCs or IgG. After 5 days of drug treatment at 37°C with 5% CO2.
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
4C9-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [43]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 40.00% (Day 14) Positive KIT expression (KIT+++/++)
Method Description
In vivo efficacy of 4C9-DM1 was examined using mouse models xenotransplanted with NCI-H526, mice with established tumors were randomized into different treatment groups when the tumor volume reached ~200 mm 3. The dose of 4C9-DM1 was 1 mg/kg twice at day 0 and day 7.
In Vivo Model Small cell lung cancer CDX model
In Vitro Model Small cell lung cancer Small cell lung cancer cells Homo sapiens
Experiment 2 Reporting the Activity Date of This ADC [43]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 45.00% (Day 14) Positive KIT expression (KIT+++/++)
Method Description
In vivo efficacy of 4C9-DM1 was examined using mouse models xenotransplanted with NCI-H526, mice with established tumors were randomized into different treatment groups when the tumor volume reached ~200 mm 3. The dose of 4C9-DM1 was 3 mg/kg twice at day 0 and day 7.
In Vivo Model Small cell lung cancer CDX model
In Vitro Model Small cell lung cancer Small cell lung cancer cells Homo sapiens
Experiment 3 Reporting the Activity Date of This ADC [43]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 59.00% (Day 14) Positive KIT expression (KIT+++/++)
Method Description
In vivo efficacy of 4C9-DM1 was examined using mouse models xenotransplanted with NCI-H526, mice with established tumors were randomized into different treatment groups when the tumor volume reached ~200 mm 3. The dose of 4C9-DM1 was 5 mg/kg twice at day 0 and day 7.
In Vivo Model Small cell lung cancer CDX model
In Vitro Model Small cell lung cancer Small cell lung cancer cells Homo sapiens
Revealed Based on the Cell Line Data
Click To Hide/Show 6 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [43]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.16 nM
Positive KIT expression (KIT+++/++)
Method Description
C-Kit positive or negative SCLC cell lines were seeded into 96-well plates and incubated with 4C9 or 4C9-DM1 in a dose-dependent manner for 35 days.
In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 2 Reporting the Activity Date of This ADC [43]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.32 nM
Positive KIT expression (KIT+++/++)
Method Description
C-Kit positive or negative SCLC cell lines were seeded into 96-well plates and incubated with 4C9 or 4C9-DM1 in a dose-dependent manner for 35 days.
In Vitro Model Lung small cell carcinoma NCI-H889 cells CVCL_1598
Experiment 3 Reporting the Activity Date of This ADC [43]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.08 nM
Positive KIT expression (KIT+++/++)
Method Description
C-Kit positive or negative SCLC cell lines were seeded into 96-well plates and incubated with 4C9 or 4C9-DM1 in a dose-dependent manner for 35 days.
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 4 Reporting the Activity Date of This ADC [43]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
16.58 nM
Negative KIT expression (KIT-)
Method Description
C-Kit positive or negative SCLC cell lines were seeded into 96-well plates and incubated with 4C9 or 4C9-DM1 in a dose-dependent manner for 35 days.
In Vitro Model Lung small cell carcinoma NCI-H446 cells CVCL_1562
Experiment 5 Reporting the Activity Date of This ADC [43]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
35.50 nM
Negative KIT expression (KIT-)
Method Description
C-Kit positive or negative SCLC cell lines were seeded into 96-well plates and incubated with 4C9 or 4C9-DM1 in a dose-dependent manner for 35 days.
In Vitro Model Lung squamous cell carcinoma NCI-H2170 cells CVCL_1535
Experiment 6 Reporting the Activity Date of This ADC [43]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
47.63 nM
Negative KIT expression (KIT-)
Method Description
C-Kit positive or negative SCLC cell lines were seeded into 96-well plates and incubated with 4C9 or 4C9-DM1 in a dose-dependent manner for 35 days.
In Vitro Model Amelanotic melanoma MDA-MB-435 cells CVCL_0417
M9346A-4a-Cxxx-Mal-CX-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [44]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 41.22% (Day 23) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
M9346A-4a-Cxxx-Mal-CX-DM1 (200 ug/kg, every seven days x3) induces efficient tumor cell killing in cell line-derived models of KB cells with HER2 expression with high expression.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [44]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 99.58% (Day 23) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
M9346A-4a-Cxxx-Mal-CX-DM1 (100 ug/kg, every seven days x3) induces efficient tumor cell killing in cell line-derived models of KB cells with HER2 expression with high expression.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [44]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.15 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Cytotoxic IC50 Values (as a Function of [ADC] and [DM1]) for Various M9346A-CX-DM1 ADCs against FR-Expressing KB Cells in the absence of 1 M unconjugated M9346A antibody.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [44]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.00 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Cytotoxic IC50 Values (as a Function of [ADC] and [DM1]) for Various M9346A-CX-DM1 ADCs against FOLR1-Expressing KB Cells in the presence of 1 M unconjugated M9346A antibody.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Anti-KIT NEG085?SPP-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 41.55% (Day 27) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 NCI-H1048 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of 2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (2.5 mg/kg).

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In Vivo Model NCI-H1048 CDX model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 87.55% (Day 27) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 NCI-H1048 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of 2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (5 mg/kg).

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In Vivo Model NCI-H1048 CDX model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 91.32% (Day 27) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 NCI-H1048 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of 2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (10 mg/kg).

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In Vivo Model NCI-H1048 CDX model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Anti-KIT 20376?SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 5 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 43.00% (Day 23) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 NCI-H1048 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of 2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (10 mg/kg).

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In Vivo Model NCI-H1048 CDX model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 49.00% (Day 40) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (0.625 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 91.00% (Day 40) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (2.5 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 4 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 96.00% (Day 40) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (5 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 5 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 97.00% (Day 40) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (10 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Revealed Based on the Cell Line Data
Click To Hide/Show 16 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
54.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
69.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
69.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST882 cells CVCL_7044
Experiment 4 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
79.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia Kasumi-6 cells CVCL_0614
Experiment 5 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
95.00%
Negative KIT expression (KIT-)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Experiment 6 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
97.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 7 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 8 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
100.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 9 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.04 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 10 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.05 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 11 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.07 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 12 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.00 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST882 cells CVCL_7044
Experiment 13 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.33 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 14 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.34 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 15 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.51 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia Kasumi-6 cells CVCL_0614
Experiment 16 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.69 nM
Negative KIT expression (KIT-)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Anti-KIT NEG087?SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 44.00% (Day 41) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (0.625 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Revealed Based on the Cell Line Data
Click To Hide/Show 16 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
57.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
70.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST882 cells CVCL_7044
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
78.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 4 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
80.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia Kasumi-6 cells CVCL_0614
Experiment 5 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
90.00%
Negative KIT expression (KIT-)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Experiment 6 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
98.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 7 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 8 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 9 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.01 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 10 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.03 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 11 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.05 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 12 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.41 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST882 cells CVCL_7044
Experiment 13 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.50 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 14 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
3.24 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia Kasumi-6 cells CVCL_0614
Experiment 15 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
6.07 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 16 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
45.43 nM
Negative KIT expression (KIT-)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Anti-FGFR2 mAb-12433 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 44.97% (Day 38) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 208.4 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 10 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model MFM223 CDX model
In Vitro Model Breast carcinoma MFM-223 cells CVCL_1408
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 91.03% (Day 33) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 3 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 96.69% (Day 31) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 4 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 35) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 233 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 15 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 6 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.29 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Breast carcinoma SUM52PE cells CVCL_3425
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 3.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 3 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 3.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
Experiment 4 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
24.00 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Breast carcinoma MFM-223 cells CVCL_1408
Experiment 5 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 30.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Cecum adenocarcinoma NCI-H716 cells CVCL_1581
Experiment 6 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 30.00 nM Negative FGFR2 expression (FGFR2-)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric carcinoma NUGC-3 cells CVCL_1612
Anti-KIT NEG026?SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 45.00% (Day 41) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (0.625 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
TF-mAb-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [45]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 48.00% (Day 20) Positive TF expression (TF +++)
Method Description
Conjugates of the exemplary antibodies were tested using an established xenograft model implanted subcutaneous into SCID mice. Mice were randomized by body weight into treatment groups and treated once post cell inoculation with 3.75 mg/kg, i.v., qw of one of the conjugates listed above or with PBS only.
In Vivo Model HCC1806 CDX model
In Vitro Model Breast squamous cell carcinoma HCC1806 cells CVCL_1258
Experiment 2 Reporting the Activity Date of This ADC [45]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 20) Positive TF expression (TF +++)
Method Description
Conjugates of the exemplary antibodies were tested using an established xenograft model implanted subcutaneous into SCID mice. Mice were randomized by body weight into treatment groups and treated once post cell inoculation with 15 mg/kg, i.v., qw of one of the conjugates listed above or with PBS only.
In Vivo Model HCC1806 CDX model
In Vitro Model Breast squamous cell carcinoma HCC1806 cells CVCL_1258
Revealed Based on the Cell Line Data
Click To Hide/Show 10 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [45]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.02 nM
Positive TF expression (TF +++)
Method Description
Cells were plated at about 500 cells per well in a 96-well plate in 100 uL of media. In vitro activity and targeted delivery of ADCs, the isotype-matched negative controls ADCs, and naked antibodies control were assessed in cells.
In Vitro Model Breast squamous cell carcinoma HCC1806 cells CVCL_1258
Experiment 2 Reporting the Activity Date of This ADC [45]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.04 nM
Positive TF expression (TF +++)
Method Description
Cells were plated at about 500 cells per well in a 96-well plate in 100 uL of media. In vitro activity and targeted delivery of ADCs, the isotype-matched negative controls ADCs, and naked antibodies control were assessed in cells.
In Vitro Model Pancreatic ductal adenocarcinoma BxPC-3 cells CVCL_0186
Experiment 3 Reporting the Activity Date of This ADC [45]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.07 nM
Positive TF expression (TF +++)
Method Description
Cells were plated at about 500 cells per well in a 96-well plate in 100 uL of media. In vitro activity and targeted delivery of ADCs, the isotype-matched negative controls ADCs, and naked antibodies control were assessed in cells.
In Vitro Model Invasive breast carcinoma Hs 578T cells CVCL_0332
Experiment 4 Reporting the Activity Date of This ADC [45]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM
Positive TF expression (TF +++)
Method Description
Cells were plated at about 500 cells per well in a 96-well plate in 100 uL of media. In vitro activity and targeted delivery of ADCs, the isotype-matched negative controls ADCs, and naked antibodies control were assessed in cells.
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Experiment 5 Reporting the Activity Date of This ADC [45]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
17.20 nM
Positive TF expression (TF +++)
Method Description
Cells were plated at about 500 cells per well in a 96-well plate in 100 uL of media. In vitro activity and targeted delivery of ADCs, the isotype-matched negative controls ADCs, and naked antibodies control were assessed in cells.
In Vitro Model Glioblastoma U-87MG cells CVCL_0022
Experiment 6 Reporting the Activity Date of This ADC [45]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
25.40 nM
Positive TF expression (TF +++)
Method Description
Cells were plated at about 500 cells per well in a 96-well plate in 100 uL of media. In vitro activity and targeted delivery of ADCs, the isotype-matched negative controls ADCs, and naked antibodies control were assessed in cells.
In Vitro Model Lung adenocarcinoma NCI-H1975 cells CVCL_1511
Experiment 7 Reporting the Activity Date of This ADC [45]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100 nM Positive TF expression (TF +++)
Method Description
Cells were plated at about 500 cells per well in a 96-well plate in 100 uL of media. In vitro activity and targeted delivery of ADCs, the isotype-matched negative controls ADCs, and naked antibodies control were assessed in cells.
In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Experiment 8 Reporting the Activity Date of This ADC [45]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100 nM Positive TF expression (TF +++)
Method Description
Cells were plated at about 500 cells per well in a 96-well plate in 100 uL of media. In vitro activity and targeted delivery of ADCs, the isotype-matched negative controls ADCs, and naked antibodies control were assessed in cells.
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 9 Reporting the Activity Date of This ADC [45]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
100 nM
Positive TF expression (TF +++)
Method Description
Cells were plated at about 500 cells per well in a 96-well plate in 100 uL of media. In vitro activity and targeted delivery of ADCs, the isotype-matched negative controls ADCs, and naked antibodies control were assessed in cells.
In Vitro Model Invasive breast carcinoma MCF-7 cells CVCL_0031
Experiment 10 Reporting the Activity Date of This ADC [45]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100 nM Positive TF expression (TF +++)
Method Description
Cells were plated at about 500 cells per well in a 96-well plate in 100 uL of media. In vitro activity and targeted delivery of ADCs, the isotype-matched negative controls ADCs, and naked antibodies control were assessed in cells.
In Vitro Model Invasive breast carcinoma T-47D cells CVCL_0553
THL4-mpeoDM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [46]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 51.61% (Day 24) Positive DLL4 expression (DLL4 +++/++)
Method Description
Drugs were intravenously (i.v.) administered in total three times on days 1, 4 and 7. 1.5 mg/kg HLmD4 was intravenously administered once every three days for three weeks.
In Vivo Model A549 CDX model
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 2 Reporting the Activity Date of This ADC [46]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 57.73% (Day 24) Positive DLL4 expression (DLL4 +++/++)
Method Description
Drugs were intravenously (i.v.) administered in total three times on days 1, 4 and 7. 1.5 mg/kg HLmD4 was intravenously administered once every three days for three weeks.
In Vivo Model MDA-MB-231 CDX model
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Experiment 3 Reporting the Activity Date of This ADC [46]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 80.25% (Day 24) Positive DLL4 expression (DLL4 +++/++)
Method Description
Drugs were intravenously (i.v.) administered in total three times on days 1, 4 and 7. 5 mg/kg HLmD4 was intravenously administered once every three days for three weeks.
In Vivo Model A549 CDX model
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 4 Reporting the Activity Date of This ADC [46]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 86.11% (Day 24) Positive DLL4 expression (DLL4 +++/++)
Method Description
Drugs were intravenously (i.v.) administered in total three times on days 1, 4 and 7. 5 mg/kg HLmD4 was intravenously administered once every three days for three weeks.
In Vivo Model MDA-MB-231 CDX model
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [46]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
37.45 nM
Positive DLL4 expression (DLL4 +++/++)
Method Description
In vitro cytotoxicity and mechanism of anti-DLL4 ADCs. The cytotoxicity of ADCs was assessed by MTT assay. The percentage of cell inhibition relative to untreated control HUVEC cells was calculated for each drug concentration.
In Vitro Model Normal HUVEC-C cells CVCL_2959
Mirvetuximab-SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [42]
Efficacy Data Tumor Growth Inhibition value (TGI)
55.86% (Day 14)
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Animals with established tumors of about 130 mm3 were treated with intravenous single injection of the M9346A-DM conjugates at 25 02 mg/kg, equivalent to 51 3 g conjugated maytansinoid per kg The conjugates were injected on day 7 after cell inoculation.
In Vivo Model FRalpha-positive KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [42]
Efficacy Data Tumor Growth Inhibition value (TGI)
99.17% (Day 10)
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Five-week-old female CB-17 severe combined immunodeficient (SCID) mice were obtained and quarantined for 7 days prior to study initiation Mice were inoculated subcutaneously with KB cells (1 x107 cells per mouse) resuspended in serum-free culture mediaMice with established KB xenografts were dosed with a single intravenous injection of 200 g of conjugated maytansinoid per kg, equivalent to 102 mg/kg antibody on day 6 after cell inoculationTumor dimensions were measured twice weekly and volume was calculated as (A B2) 05, where A represents the largest and B the perpendicular tumor diameter.

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In Vivo Model FRalpha-positive KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Revealed Based on the Cell Line Data
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [42]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.08±0.01 nM
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Dilutions of conjugates or unconjugated maytansinoid in the appropriate culture medium were added to wells of 96-well flat-bottomed plates containing 1 x103 cells per well The plates were incubated at 37°C, 6% CO2 for either 5 days (continuos exposure) or for 4 hours followed by 5-day incubation in conjugate-free medium (short exposure). Cell viability was determined by the WST-8 assay in accordance with the manufacturer's protocol, and IC50 were generated using a sigmoidal dose-response (variable slope) nonlinear regression curve fit.

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In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [42]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10±0.02 nM
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Dilutions of conjugates or unconjugated maytansinoid in the appropriate culture medium were added to wells of 96-well flat-bottomed plates containing 1 x103 cells per well The plates were incubated at 37°C, 6% CO2 for either 5 days (continuos exposure) or for 4 hours followed by 5-day incubation in conjugate-free medium (short exposure). Cell viability was determined by the WST-8 assay in accordance with the manufacturer's protocol, and IC50 were generated using a sigmoidal dose-response (variable slope) nonlinear regression curve fit.

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In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 3 Reporting the Activity Date of This ADC [42]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
7.00±2.00 nM
Moderate FOLR1 expression (FOLR1++; 290,000 FOLR1 molecules/cell)
Method Description
Dilutions of conjugates or unconjugated maytansinoid in the appropriate culture medium were added to wells of 96-well flat-bottomed plates containing 1 103 cells per well The plates were incubated at 37°C, 6% CO2 for either 5 days (continuos exposure) or for 4 hours followed by 5-day incubation in conjugate-free medium (short exposure) Cell viability was determined by the WST-8 assay in accordance with the manufacturer's protocol, and IC50 were generated using a sigmoidal dose-response (variable slope) nonlinear regression curve fit.

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In Vitro Model Gestational choriocarcinoma JEG-3 cells CVCL_0363
Experiment 4 Reporting the Activity Date of This ADC [42]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
20.00±0.70 nM
High FOLR1 expression (FOLR1+++; 1,300,000 FOLR1 molecules/cell)
Method Description
Dilutions of conjugates or unconjugated maytansinoid in the appropriate culture medium were added to wells of 96-well flat-bottomed plates containing 1 x103 cells per well The plates were incubated at 37°C, 6% CO2 for either 5 days (continuos exposure) or for 4 hours followed by 5-day incubation in conjugate-free medium (short exposure). Cell viability was determined by the WST-8 assay in accordance with the manufacturer's protocol, and IC50 were generated using a sigmoidal dose-response (variable slope) nonlinear regression curve fit.

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In Vitro Model Ovarian endometrioid adenocarcinoma IGROV-1 cells CVCL_1304
huMov19-SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 7 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [47]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 56.67% (Day 20) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugates of the exemplary anti-FOLR1 antibodies were tested using an established xenograft model of KB cells implanted subcutaneous into SCID mice. Mice were randomized by body weight into treatment groups and treated once on day 6 post cell inoculation with 2.5 mg/kg of one of the conjugates listed above or with PBS only.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [47]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 89.15% (Day 20) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugates of the exemplary anti-FOLR1 antibodies were tested using an established xenograft model of KB cells implanted subcutaneous into SCID mice. Mice were randomized by body weight into treatment groups and treated once on day 6 post cell inoculation with 5 mg/kg of one of the conjugates listed above or with PBS only.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 3 Reporting the Activity Date of This ADC [47]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 99.52% (Day 20) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugates of the exemplary anti-FOLR1 antibodies were tested using an established xenograft model of KB cells implanted subcutaneous into SCID mice. Mice were randomized by body weight into treatment groups and treated once on day 6 post cell inoculation with 10 mg/kg of one of the conjugates listed above or with PBS only.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 4 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugate in various concentrations was added to FOLR1-expressing cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 5 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugate in various concentrations was added to FOLR1-expressing cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Ovarian endometrioid adenocarcinoma IGROV-1 cells CVCL_1304
Experiment 6 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugate in various concentrations was added to FOLR1-expressing cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 7 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
20.00 nM
Moderate FOLR1 expression (FOLR1 ++)
Method Description
Conjugate in various concentrations was added to FOLR1-expressing cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Gestational choriocarcinoma JEG-3 cells CVCL_0363
Anti-KIT NEG086?SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 57.00% (Day 41) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (0.625 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 88.61% (Day 27) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 NCI-H1048 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of 2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (2.0 mg/kg).

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In Vivo Model NCI-H1048 CDX model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Revealed Based on the Cell Line Data
Click To Hide/Show 16 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
54.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
69.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST882 cells CVCL_7044
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
74.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 4 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
80.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia Kasumi-6 cells CVCL_0614
Experiment 5 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
91.00%
Negative KIT expression (KIT-)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Experiment 6 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
98.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 7 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 8 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 9 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.01 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 10 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.03 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 11 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.06 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 12 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.43 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST882 cells CVCL_7044
Experiment 13 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.52 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia Kasumi-6 cells CVCL_0614
Experiment 14 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.83 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 15 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.22 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 16 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
16.92 nM
Negative KIT expression (KIT-)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Anti-FGFR2/4 mAb-10918 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 61.12% (Day 33) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 0.20 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.61 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
Anti-FGFR2/4 mAb-11722 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 61.76% (Day 33) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 0.20 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.59 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
M9346A-4b-Cxxx-Mal-CX-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [44]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 62.10% (Day 23) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
M9346A-4b-Cxxx-Mal-CX-DM1 (100 ug/kg, every seven days x3) induces efficient tumor cell killing in cell line-derived models of KB cells with HER2 expression with high expression.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [44]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 73.36% (Day 23) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
M9346A-4b-Cxxx-Mal-CX-DM1 (200 ug/kg, every seven days x3) induces efficient tumor cell killing in cell line-derived models of KB cells with HER2 expression with high expression.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [44]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.20 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Cytotoxic IC50 Values (as a Function of [ADC] and [DM1]) for Various M9346A-CX-DM1 ADCs against FR-Expressing KB Cells in the absence of 1 M unconjugated M9346A antibody.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [44]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.00 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Cytotoxic IC50 Values (as a Function of [ADC] and [DM1]) for Various M9346A-CX-DM1 ADCs against FOLR1-Expressing KB Cells in the presence of 1 M unconjugated M9346A antibody.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Anti-KIT NEG027?SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 63.65% (Day 42) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (0.625 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 83.95% (Day 42) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (1.25 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 85.25% (Day 42) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (2.5 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
HuFR1-65-SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [42]
Efficacy Data Tumor Growth Inhibition value (TGI)
65.00% (Day 12)
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Five-week-old female CB-17 severe combined immunodeficient (SCID) mice were obtained and quarantined for 7 days prior to study initiation Mice were inoculated subcutaneously with KB cells (1 x107 cells per mouse) resuspended in serum-free culture mediaMice with established KB xenografts were dosed with a single intravenous injection of 200 g of conjugated maytansinoid per kg, equivalent to 102 mg/kg antibody on day 6 after cell inoculationTumor dimensions were measured twice weekly and volume was calculated as (A B2) 05, where A represents the largest and B the perpendicular tumor diameter.

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In Vivo Model FRalpha-positive KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [42]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.08±0.02 nM
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Dilutions of conjugates or unconjugated maytansinoid in the appropriate culture medium were added to wells of 96-well flat-bottomed plates containing 1 x103 cells per well The plates were incubated at 37°C, 6% CO2 for either 5 days (continuos exposure) or for 4 hours followed by 5-day incubation in conjugate-free medium (short exposure). Cell viability was determined by the WST-8 assay in accordance with the manufacturer's protocol, and IC50 were generated using a sigmoidal dose-response (variable slope) nonlinear regression curve fit.

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In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
HuFR1-48-SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [42]
Efficacy Data Tumor Growth Inhibition value (TGI)
65.00% (Day 12)
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Five-week-old female CB-17 severe combined immunodeficient (SCID) mice were obtained and quarantined for 7 days prior to study initiation Mice were inoculated subcutaneously with KB cells (1 x107 cells per mouse) resuspended in serum-free culture mediaMice with established KB xenografts were dosed with a single intravenous injection of 200 g of conjugated maytansinoid per kg, equivalent to 102 mg/kg antibody on day 6 after cell inoculationTumor dimensions were measured twice weekly and volume was calculated as (A B2) 05, where A represents the largest and B the perpendicular tumor diameter.

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In Vivo Model FRalpha-positive KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [42]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.07±0.02 nM
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Dilutions of conjugates or unconjugated maytansinoid in the appropriate culture medium were added to wells of 96-well flat-bottomed plates containing 1 x103 cells per well The plates were incubated at 37°C, 6% CO2 for either 5 days (continuos exposure) or for 4 hours followed by 5-day incubation in conjugate-free medium (short exposure). Cell viability was determined by the WST-8 assay in accordance with the manufacturer's protocol, and IC50 were generated using a sigmoidal dose-response (variable slope) nonlinear regression curve fit.

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In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Anti-FGFR2 mAb-12944 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 65.73% (Day 31) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 3.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 3.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
Anti-FGFR2 mAb-10846 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 71.12% (Day 31) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 0.20 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.43 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
Anti-FGFR2/4 mAb-10923 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 71.79% (Day 33) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 0.20 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.45 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
Anti-FGFR2 mAb-11723 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 74.86% (Day 31) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 0.20 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.91 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
P38B-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [48]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 75.00% (Day 18) Positive PDPN expression (PDPN +++/++)
Method Description
One day after cell inoculation, 100 mg of antibodies (P38B-DM1, P38B, or normal canine IgG) in 100 mL of PBS were injected into the peritoneal cavity of each mouse. On days 8 and 14, 5 mg/kg P38B-DM1 was injected into each mouse.
In Vivo Model CHO/dPDPN CDX model
In Vitro Model Melanoma CHO cells (PDPN expression) CVCL_0213
Revealed Based on the Cell Line Data
Click To Hide/Show 7 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [48]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 48.00 ng/mL Positive PDPN expression (PDPN +++/++)
Method Description
0.01-10 mg/mL for 30 minutes, followed by treatment with fluorescein isothiocyanate-conjugated.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 2 Reporting the Activity Date of This ADC [54]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.09 nM
High HER2 expression (HER2+++)
Method Description
0.01-10 mg/mL for 30 minutes, followed by treatment with fluorescein isothiocyanate-conjugated.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 3 Reporting the Activity Date of This ADC [54]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.12 nM
High HER2 expression (HER2+++)
Method Description
0.01-10 mg/mL for 30 minutes, followed by treatment with fluorescein isothiocyanate-conjugated.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 4 Reporting the Activity Date of This ADC [54]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.78 nM
High HER2 expression (HER2+++)
Method Description
0.01-10 mg/mL for 30 minutes, followed by treatment with fluorescein isothiocyanate-conjugated.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 5 Reporting the Activity Date of This ADC [54]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
35.00 nM
High HER2 expression (HER2+++)
Method Description
0.01-10 mg/mL for 30 minutes, followed by treatment with fluorescein isothiocyanate-conjugated.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 6 Reporting the Activity Date of This ADC [54]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
97.62 nM
Low HER2 expression (HER2+)
Method Description
0.01-10 mg/mL for 30 minutes, followed by treatment with fluorescein isothiocyanate-conjugated.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 7 Reporting the Activity Date of This ADC [54]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
110.54 nM
Low HER2 expression (HER2+)
Method Description
0.01-10 mg/mL for 30 minutes, followed by treatment with fluorescein isothiocyanate-conjugated.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Anti-FGFR2 mAb-10220 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 76.72% (Day 33) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 0.20 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.33 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
Anti-KIT NEG024?SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 5 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 77.00% (Day 41) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (0.625 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 90.01% (Day 27) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 NCI-H1048 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of 2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (2.0 mg/kg).

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In Vivo Model NCI-H1048 CDX model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 99.00% (Day 23) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 NCI-H1048 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of 2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (2.5 mg/kg).

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In Vivo Model NCI-H1048 CDX model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 4 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 23) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 NCI-H1048 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of 2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (5 mg/kg).

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In Vivo Model NCI-H1048 CDX model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 5 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 23) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 NCI-H1048 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of 2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (10 mg/kg).

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In Vivo Model NCI-H1048 CDX model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Revealed Based on the Cell Line Data
Click To Hide/Show 16 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
53.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
66.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST882 cells CVCL_7044
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
72.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 4 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
78.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia Kasumi-6 cells CVCL_0614
Experiment 5 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
92.00%
Negative KIT expression (KIT-)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Experiment 6 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
98.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 7 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 8 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 9 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.02 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 10 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.04 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 11 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.07 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 12 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.72 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST882 cells CVCL_7044
Experiment 13 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.74 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 14 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.26 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia Kasumi-6 cells CVCL_0614
Experiment 15 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
8.49 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 16 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
22.77 nM
Negative KIT expression (KIT-)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
B-B4-SPP-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [49]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 77.45% (Day 20) Positive CD138 expression (CD138 +++/++)
Method Description
MOLP-8 cells (1.5x107 cells per mouse) suspended in a 50:50 mixture of serum free media and matrigel were injected subcutaneously in the area under the right shoulder in 100 ul. Nine groups (n=6) were treated with a single intravenous injection of ADCs, each at doses of 250 ug/kg.
In Vivo Model MOLP-8 CDX model
In Vitro Model Plasma cell myeloma MOLP-8 cells CVCL_2124
Tmab-SPP-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [9]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 77.60% (Day 10) High HER2 expression (HER2+++)
Method Description
Mice bearing mammary tumor transplants from the MMTV-HER2 Fo5 line were given a single iv injection (10 mg/kg) of Tmab-SPP-DM1, Tmab-SSNPP-DM3, Tmab-SSNPP-DM4, Tmab-MCC-DM1, or vehicle (n=7 mice per group), and tumor growth was monitored for 25 days.
In Vivo Model MMTV-HER2 Fo5 CDX model (Trastuzumab resistant)
In Vitro Model Breast cancer MMTV-HER2 cells Mus musculus
Revealed Based on the Cell Line Data
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.22 nM
High HER2 expression (HER2+++)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. For measurement of apoptosis, BT-474 and SK-BR-3 were exposed to trastuzumab or trastuzumab-DM for 48 h.

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In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 2 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.26 nM
High HER2 expression (HER2+++)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. For measurement of apoptosis, BT-474 and SK-BR-3 were exposed to trastuzumab or trastuzumab-DM for 48 h.

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In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Experiment 3 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
41.37 nM
Negative HER2 expression (HER2-)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. Medium was then removed and replaced by fresh culture medium containing different concentrations of trastuzumab, trastuzumab ADC, or free DM1, and the cells incubated for varying periods of time.

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In Vitro Model Breast adenocarcinoma MDA-MB-468 cells CVCL_0419
Experiment 4 Reporting the Activity Date of This ADC [9]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100.00 nM Low HER2 expression (HER2+)
Method Description
The effects of trastuzumab and trastuzumab-maytansinoid conjugates on tumor cell viability were assessed using Cell Titer-Glo. Cells were plated in black-walled 96-well plates (20,000 per well for BT-474; 10,000 cells per well for all other lines) and allowed to adhere overnight at 37°C in a humidified atmosphere of 5% CO2. Medium was then removed and replaced by fresh culture medium containing different concentrations of trastuzumab, trastuzumab ADC, or free DM1, and the cells incubated for varying periods of time.

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In Vitro Model Invasive breast carcinoma MCF-7 cells CVCL_0031
nBT062-SPP-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [49]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 77.61% (Day 30) Positive CD138 expression (CD138 +++/++)
Method Description
MOLP-8 cells (1.5x107 cells per mouse) suspended in a 50:50 mixture of serum free media and matrigel were injected subcutaneously in the area under the right shoulder in 100 ul. Nine groups (n=6) were treated with a single intravenous injection of ADCs, each at doses of 250 ug/kg.
In Vivo Model MOLP-8 CDX model
In Vitro Model Plasma cell myeloma MOLP-8 cells CVCL_2124
Experiment 2 Reporting the Activity Date of This ADC [49]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 84.27% (Day 20) Positive CD138 expression (CD138 +++/++)
Method Description
MOLP-8 cells (1.5x107 cells per mouse) suspended in a 50:50 mixture of serum free media and matrigel were injected subcutaneously in the area under the right shoulder in 100 ul. Nine groups (n=6) were treated with a single intravenous injection of ADCs, each at doses of 250 ug/kg.
In Vivo Model MOLP-8 CDX model
In Vitro Model Plasma cell myeloma MOLP-8 cells CVCL_2124
Experiment 3 Reporting the Activity Date of This ADC [49]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 92.11% (Day 30) Positive CD138 expression (CD138 +++/++)
Method Description
MOLP-8 cells (1.5x107 cells per mouse) suspended in a 50:50 mixture of serum free media and matrigel were injected subcutaneously in the area under the right shoulder in 100 ul. Nine groups (n=6) were treated with a single intravenous injection of ADCs, each at doses of 450 ug/kg.
In Vivo Model MOLP-8 CDX model
In Vitro Model Plasma cell myeloma MOLP-8 cells CVCL_2124
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [49]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.00 nM-10.00 nM
Positive CD138 expression (CD138 +++/++)
Method Description
CD138+ MOLP-8 cells were seeded in flat bottom plates at 3000 cells/well. CD138- BJAB control cells were seeded at 1000 cells/weli. The cells were treated with nBT062-SPDB-DM4nBT062-SPP-DM1 or nBT062-SMCC-DM1 at different concentrations for five days.
In Vitro Model Plasma cell myeloma MOLP-8 cells CVCL_2124
Experiment 2 Reporting the Activity Date of This ADC [49]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100 nM Negative CD138 expression (CD138 -)
Method Description
CD138+ MOLP-8 cells were seeded in flat bottom plates at 3000 cells/well. CD138- BJAB control cells were seeded at 1000 cells/weli. The cells were treated with nBT062-SPDB-DM4nBT062-SPP-DM1 or nBT062-SMCC-DM1 at different concentrations for five days.
In Vitro Model Burkitt lymphoma BJAB cells CVCL_5711
Anti-FGFR2 mAb-11725 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 77.87% (Day 31) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.00 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.20 nM
Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
nBT062-SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [49]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 78.02% (Day 30) Positive CD138 expression (CD138 +++/++)
Method Description
MOLP-8 cells (1.5x107 cells per mouse) suspended in a 50:50 mixture of serum free media and matrigel were injected subcutaneously in the area under the right shoulder in 100 ul. Nine groups (n=6) were treated with a single intravenous injection of ADCs, each at doses of 250 ug/kg.
In Vivo Model MOLP-8 CDX model
In Vitro Model Plasma cell myeloma MOLP-8 cells CVCL_2124
Experiment 2 Reporting the Activity Date of This ADC [49]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 93.32% (Day 30) Positive CD138 expression (CD138 +++/++)
Method Description
MOLP-8 cells (1.5x107 cells per mouse) suspended in a 50:50 mixture of serum free media and matrigel were injected subcutaneously in the area under the right shoulder in 100 ul. Nine groups (n=6) were treated with a single intravenous injection of ADCs, each at doses of 250 ug/kg per week (five weeks).
In Vivo Model MOLP-8 CDX model
In Vitro Model Plasma cell myeloma MOLP-8 cells CVCL_2124
Experiment 3 Reporting the Activity Date of This ADC [49]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 94.27% (Day 30) Positive CD138 expression (CD138 +++/++)
Method Description
MOLP-8 cells (1.5x107 cells per mouse) suspended in a 50:50 mixture of serum free media and matrigel were injected subcutaneously in the area under the right shoulder in 100 ul. Nine groups (n=6) were treated with a single intravenous injection of ADCs, each at doses of 450 ug/kg.
In Vivo Model MOLP-8 CDX model
In Vitro Model Plasma cell myeloma MOLP-8 cells CVCL_2124
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [49]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM-1.00 nM
Positive CD138 expression (CD138 +++/++)
Method Description
CD138+ MOLP-8 cells were seeded in flat bottom plates at 3000 cells/well. CD138- BJAB control cells were seeded at 1000 cells/weli. The cells were treated with nBT062-SPDB-DM4nBT062-SPP-DM1 or nBT062-SMCC-DM1 at different concentrations for five days.
In Vitro Model Plasma cell myeloma MOLP-8 cells CVCL_2124
Experiment 2 Reporting the Activity Date of This ADC [49]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100 nM Negative CD138 expression (CD138 -)
Method Description
CD138+ MOLP-8 cells were seeded in flat bottom plates at 3000 cells/well. CD138- BJAB control cells were seeded at 1000 cells/weli. The cells were treated with nBT062-SPDB-DM4nBT062-SPP-DM1 or nBT062-SMCC-DM1 at different concentrations for five days.
In Vitro Model Burkitt lymphoma BJAB cells CVCL_5711
Anti-KIT 9P3?SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 5 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 78.93% (Day 14) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with Kasumi-1 cells. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of 2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (10 mg/kg).

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In Vivo Model Kasumi-1 CDX model
In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 84.35% (Day 35) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with Kasumi-1 cells. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of 2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (10 mg/kg).

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In Vivo Model HMC-1 CDX model
In Vitro Model Mast cell leukemia HMC-1 cells CVCL_0003
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 93.00% (Day 43) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (10 mg/kg).

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In Vivo Model GIST430 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 4 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 50) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (5 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 5 Reporting the Activity Date of This ADC [40]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 50) Positive KIT expression (KIT+++/++)
Method Description
Female SCID-beige mice were implanted subcutaneously with 10,000,000 cells. The total injection volume containingcells in suspension was 200 ul. Mice were enrolled in the study 15 days post implantation withaverage tumor volume of about 120 mm3. All treated groups received a single intravenous dose of2 mg/kg. After being randomly assigned to groups (n = 8/group), mice were administered a single i.v.dose of TBS (5 ml/kg) or ADC (10 mg/kg).

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In Vivo Model GIST-T1 CDX model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Revealed Based on the Cell Line Data
Click To Hide/Show 28 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
60.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
75.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
86.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H889 cells CVCL_1598
Experiment 4 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
87.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1930 cells CVCL_1507
Experiment 5 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
91.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute megakaryoblastic leukemia CMK-11-5 cells CVCL_0217
Experiment 6 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
92.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia Kasumi-6 cells CVCL_0614
Experiment 7 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
95.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Erythroleukemia HEL 92.1.7 cells CVCL_2481
Experiment 8 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
98.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 9 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia OCI-M1 cells CVCL_2149
Experiment 10 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Adult acute myeloid leukemia SKNO-1 cells CVCL_2196
Experiment 11 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Essential thrombocythemia UKE-1 cells CVCL_0104
Experiment 12 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
99.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 13 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
100.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 14 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
100.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute megakaryoblastic leukemia M-07e cells CVCL_2106
Experiment 15 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
0.02 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 16 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
0.05 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute megakaryoblastic leukemia CMK-11-5 cells CVCL_0217
Experiment 17 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
0.05 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 18 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
0.08 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute megakaryoblastic leukemia M-07e cells CVCL_2106
Experiment 19 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
0.08 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 20 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
0.09 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1930 cells CVCL_1507
Experiment 21 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
0.11 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia OCI-M1 cells CVCL_2149
Experiment 22 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
0.15 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H889 cells CVCL_1598
Experiment 23 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
0.61 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Erythroleukemia HEL 92.1.7 cells CVCL_2481
Experiment 24 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
1.29 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Acute myeloid leukemia Kasumi-6 cells CVCL_0614
Experiment 25 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
1.80 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Essential thrombocythemia UKE-1 cells CVCL_0104
Experiment 26 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
3.60 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Adult acute myeloid leukemia SKNO-1 cells CVCL_2196
Experiment 27 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
4.00 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 28 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
4.30 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Anti-FGFR2/4 mAb-12439 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 80.60% (Day 31) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 3.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 3.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
ADAPT6-ABD-mcDM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [50]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 83.30% (Day 23) High HER2 expression (HER2+++)
Method Description
The SKOV3 xenografts were established in female BALB/c nu/nu mice by subcutaneous implantation of 1 x107 SKOV3 cells in 100 uL of medium in the abdominal region. The therapy started one week after the implantation. The mice were randomized in three groups (n = 910). One group of mice received intravenous (i.v.) injections of 13.3 mg/kg of ADAPT6-ABD-mcDM1 in 100 uL of PBS, the second group of mice received i.v. injections of the same dose of ADAPTNeg-ABD-mcDM1 in 100 uL of PBS, and the third group of mice received i.v. injections of 100 uL of PBS.

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In Vivo Model ER2-expressing SKOV3 ovarian cancer xenograft model
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
Revealed Based on the Cell Line Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [58]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.00 nM
High HER2 expression (HER2+++)
Method Description
The cytotoxic potential of ADAPT6-ABD-mcDM1 was investigated by incubation of dilution series of the conjugate with cell lines having different HER2-expression levels.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 2 Reporting the Activity Date of This ADC [58]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
7.00 nM
High HER2 expression (HER2+++)
Method Description
The cytotoxic potential of ADAPT6-ABD-mcDM1 was investigated by incubation of dilution series of the conjugate with cell lines having different HER2-expression levels.
In Vitro Model Breast adenocarcinoma AU565 cells CVCL_1074
Experiment 3 Reporting the Activity Date of This ADC [58]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
80.00 nM
High HER2 expression (HER2+++)
Method Description
The cytotoxic potential of ADAPT6-ABD-mcDM1 was investigated by incubation of dilution series of the conjugate with cell lines having different HER2-expression levels.
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
H3L2-mpeoDM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [46]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 84.38% (Day 24) Positive DLL4 expression (DLL4 +++/++)
Method Description
Drugs were intravenously (i.v.) administered in total three times on days 1, 4 and 7. 5 mg/kg JmD4 was intravenously administered once every three days for three weeks.
In Vivo Model A549 CDX model
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 2 Reporting the Activity Date of This ADC [46]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 88.43% (Day 24) Positive DLL4 expression (DLL4 +++/++)
Method Description
Drugs were intravenously (i.v.) administered in total three times on days 1, 4 and 7. 5 mg/kg JmD4 was intravenously administered once every three days for three weeks.
In Vivo Model MDA-MB-231 CDX model
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [46]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
36.12 nM
Positive DLL4 expression (DLL4 +++/++)
Method Description
In vitro cytotoxicity and mechanism of anti-DLL4 ADCs. The cytotoxicity of ADCs was assessed by MTT assay. The percentage of cell inhibition relative to untreated control HUVEC cells was calculated for each drug concentration.
In Vitro Model Normal HUVEC-C cells CVCL_2959
HuFR1-49-SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [42]
Efficacy Data Tumor Growth Inhibition value (TGI)
85.00% (Day 12)
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Five-week-old female CB-17 severe combined immunodeficient (SCID) mice were obtained and quarantined for 7 days prior to study initiation Mice were inoculated subcutaneously with KB cells (1 x107 cells per mouse) resuspended in serum-free culture mediaMice with established KB xenografts were dosed with a single intravenous injection of 200 g of conjugated maytansinoid per kg, equivalent to 102 mg/kg antibody on day 6 after cell inoculationTumor dimensions were measured twice weekly and volume was calculated as (A B2) 05, where A represents the largest and B the perpendicular tumor diameter.

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In Vivo Model FRalpha-positive KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [42]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.07±0.01 nM
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Dilutions of conjugates or unconjugated maytansinoid in the appropriate culture medium were added to wells of 96-well flat-bottomed plates containing 1 x103 cells per well The plates were incubated at 37°C, 6% CO2 for either 5 days (continuos exposure) or for 4 hours followed by 5-day incubation in conjugate-free medium (short exposure). Cell viability was determined by the WST-8 assay in accordance with the manufacturer's protocol, and IC50 were generated using a sigmoidal dose-response (variable slope) nonlinear regression curve fit.

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In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Anti-FGFR2 mAb-12931 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 85.56% (Day 31) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 3.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 3.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
HuFR1-57-SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [42]
Efficacy Data Tumor Growth Inhibition value (TGI)
86.67% (Day 12)
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Five-week-old female CB-17 severe combined immunodeficient (SCID) mice were obtained and quarantined for 7 days prior to study initiation Mice were inoculated subcutaneously with KB cells (1 x107 cells per mouse) resuspended in serum-free culture mediaMice with established KB xenografts were dosed with a single intravenous injection of 200 g of conjugated maytansinoid per kg, equivalent to 102 mg/kg antibody on day 6 after cell inoculationTumor dimensions were measured twice weekly and volume was calculated as (A B2) 05, where A represents the largest and B the perpendicular tumor diameter.

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In Vivo Model FRalpha-positive KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [42]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.15±0.02 nM
High FOLR1 expression (FOLR1+++; 4,500,000 FOLR1 molecules/cell)
Method Description
Dilutions of conjugates or unconjugated maytansinoid in the appropriate culture medium were added to wells of 96-well flat-bottomed plates containing 1 x103 cells per well The plates were incubated at 37°C, 6% CO2 for either 5 days (continuos exposure) or for 4 hours followed by 5-day incubation in conjugate-free medium (short exposure). Cell viability was determined by the WST-8 assay in accordance with the manufacturer's protocol, and IC50 were generated using a sigmoidal dose-response (variable slope) nonlinear regression curve fit.

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In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
M9346A-CX-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [44]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 87.77% (Day 23) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
M9436A-CX-DM1 (200 ug/kg, every seven days x3) induces efficient tumor cell killing in cell line-derived models of KB cells with HER2 expression with high expression.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [44]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 88.30% (Day 23) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
M9436A-CX-DM1 (100 ug/kg, every seven days x3) induces efficient tumor cell killing in cell line-derived models of KB cells with HER2 expression with high expression.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [44]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.07 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Cytotoxic IC50 Values (as a Function of [ADC] and [DM1]) for Various M9346A-CX-DM1 ADCs against FR-Expressing KB Cells in the absence of 1 M unconjugated M9346A antibody.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [44]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
8.00 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Cytotoxic IC50 Values (as a Function of [ADC] and [DM1]) for Various M9346A-CX-DM1 ADCs against FOLR1-Expressing KB Cells in the presence of 1 M unconjugated M9346A antibody.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Anti-FGFR2 mAb-12947 SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 90.66% (Day 31) Positive FGFR2 expression (FGFR2+++/++)
Method Description
The total injection volume containing cells in suspension was 200 ul. Mice were enrolled in the first study eight days post implantation with average tumor volume of 192.9 mm3. After being randomly assigned to one of nine groups (n =8/group), mice were administered PBS or a single 3 mg/kg intravenous (i.v,) injection of one antibody drug conjugates.

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In Vivo Model SNU-16 CDX model
In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 3.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Gastric adenocarcinoma SNU-16 cells CVCL_0076
Experiment 2 Reporting the Activity Date of This ADC [33]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 3.00 nM Positive FGFR2 expression (FGFR2+++/++)
Method Description
Cells were counted and seeded in 96 well plates at densities of 2600-3600 cells/well in 100 ul of cell culture medium, A duplicate plate was generated for a day 0 measurement and all plates were incubated in a tissue culture incubator at 37°C with 5% CO2 overnight. Following this incubation, 50 ul/well of Cell titer Glo reagent was added to the day 0 plates, which were then shaken gently for 10 min and the resulting luminescence intensity was measured.

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In Vitro Model Down syndrome KATO III cells CVCL_0371
huMov19-SPP-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 5 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [47]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 90.72% (Day 17) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugates of the exemplary anti-FOLR1 antibodies were tested using an established xenograft model of KB cells implanted subcutaneous into SCID mice. Mice were randomized by body weight into treatment groups and treated once on day 6 post cell inoculation with 2.5 mg/kg of one of the conjugates listed above or with PBS only.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [47]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 94.09% (Day 17) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugates of the exemplary anti-FOLR1 antibodies were tested using an established xenograft model of KB cells implanted subcutaneous into SCID mice. Mice were randomized by body weight into treatment groups and treated once on day 6 post cell inoculation with 5 mg/kg of one of the conjugates listed above or with PBS only.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 3 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugate in various concentrations was added to FOLR1-expressing cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 4 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugate in various concentrations was added to FOLR1-expressing cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Ovarian endometrioid adenocarcinoma IGROV-1 cells CVCL_1304
Experiment 5 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.20 nM
Moderate FOLR1 expression (FOLR1 ++)
Method Description
Conjugate in various concentrations was added to FOLR1-expressing cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Gestational choriocarcinoma JEG-3 cells CVCL_0363
M9346A-SPP-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [47]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 90.98% (Day 20) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugates of the exemplary anti-FOLR1 antibodies were tested using an established xenograft model of OVCAR-3 cells implanted subcutaneous into SCID mice. Mice were randomized by body weight into treatment groups and treated once post cell inoculation with 5 mg/kg of one of the conjugates listed above or with PBS only.
In Vivo Model OVCAR-3 CDX model
In Vitro Model Ovarian serous adenocarcinoma OVCAR-3 cells CVCL_0465
muDS6-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 6 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [51]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 94.50% (Day 30) Positive CA6 expression (CA6 +++/++)
Method Description
To demonstrate the in vivo activity of the muDS6-DM1 conjugate,human tumor xenografts were established in SCID mice.A subcutaneous model of the human pancreatic cancer cell-line HPAC was developed. The dose was 27.7 mg/kg qw x2.
In Vivo Model HPAC CDX model
In Vitro Model Pancreatic adenocarcinoma HPAC cells CVCL_3517
Experiment 2 Reporting the Activity Date of This ADC [51]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 30) Positive CA6 expression (CA6 +++/++)
Method Description
To demonstrate the in vivo activity of the muDS6-DM1 conjugate,human tumor xenografts were established in SCID mice.A subcutaneous model of the human cervical cancer cell-line HeLa was developed. The dose was 27.7 mg/kg qw x2.
In Vivo Model HeLa CDX model
In Vitro Model Endocervical adenocarcinoma HeLa cells CVCL_0030
Experiment 3 Reporting the Activity Date of This ADC [51]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 30) Positive CA6 expression (CA6 +++/++)
Method Description
To demonstrate the in vivo activity of the muDS6-DM1 conjugate,human tumor xenografts were established in SCID mice.A subcutaneous model of the human ovarian cancer cell-line TOV-21G was developed. The dose was 27.7 mg/kg qw x2.
In Vivo Model TOV-21G CDX model
In Vitro Model Ovarian clear cell adenocarcinoma TOV-21G cells CVCL_3613
Experiment 4 Reporting the Activity Date of This ADC [51]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 30) Positive CA6 expression (CA6 +++/++)
Method Description
To demonstrate the in vivo activity of the muDS6-DM1 conjugate,human tumor xenografts were established inSCID mice.A subcutaneous model of the human cervicalcarcinoma cell-line KB was developed. The dose was 150 ug/kg every day for 5 days.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 5 Reporting the Activity Date of This ADC [51]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 30) Positive CA6 expression (CA6 +++/++)
Method Description
To demonstrate the in vivo activity of the muDS6-DM1 conjugate,human tumor xenografts were established inSCID mice.A subcutaneous model of the human cervicalcarcinoma cell-line KB was developed. The dose was 250 ug/kg every day for 5 days.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 6 Reporting the Activity Date of This ADC [51]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 30) Positive CA6 expression (CA6 +++/++)
Method Description
To demonstrate the in vivo activity of the muDS6-DM1 conjugate,human tumor xenografts were established inSCID mice.A subcutaneous model of the human cervicalcarcinoma cell-line KB was developed. The dose was 27.7 mg/kg qw x2.
In Vivo Model OVCAR-5 CDX model
In Vitro Model Ovarian serous adenocarcinoma OVCAR-5 cells CVCL_1628
Revealed Based on the Cell Line Data
Click To Hide/Show 28 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM
Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Ductal carcinoma BT-483 cells CVCL_2319
Experiment 2 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.45 nM
Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Invasive breast carcinoma ZR-75-1 cells CVCL_0588
Experiment 3 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.46 nM
Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Endocervical adenocarcinoma WISH cells CVCL_1909
Experiment 4 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.67 nM
Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Endocervical adenocarcinoma WISH cells CVCL_1909
Experiment 5 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.80 nM
Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Ovarian serous adenocarcinoma Caov-3 cells CVCL_0201
Experiment 6 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.40 nM
Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 7 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.61 nM
Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Ovarian serous adenocarcinoma Caov-3 cells CVCL_0201
Experiment 8 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.80 nM
Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Endocervical adenocarcinoma HeLa cells CVCL_0030
Experiment 9 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.80 nM
Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Pancreatic adenocarcinoma HPAC cells CVCL_3517
Experiment 10 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.84 nM
Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Pancreatic adenocarcinoma HPAC cells CVCL_3517
Experiment 11 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.00 nM
Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Ovarian clear cell adenocarcinoma TOV-21G cells CVCL_3613
Experiment 12 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 3.00 nM Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Invasive breast carcinoma of no special type BT-20 cells CVCL_0178
Experiment 13 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 3.00 nM Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model High grade ovarian serous adenocarcinoma Caov-4 cells CVCL_0202
Experiment 14 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 3.00 nM Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Pancreatic ductal adenocarcinoma HPAF-II cells CVCL_0313
Experiment 15 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 3.00 nM Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Pancreatic adenocarcinoma Hs 766T cells CVCL_0334
Experiment 16 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 3.00 nM Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Ovarian serous adenocarcinoma OVCAR-5 cells CVCL_1628
Experiment 17 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 3.00 nM Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Invasive breast carcinoma T-47D cells CVCL_0553
Experiment 18 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 3.00 nM Positive CA6 expression (CA6 +++/++)
Method Description
Clonogenic assays were conducted where cells (1000-2500 cells/well) were plated on6-well plates in 2 ml of conjugate diluted in culture media.The cells were continuously exposed to the conjugate at concentrations,generally between 3x10-11M toseveral 3x10-9 M,and were incubated in a 37°C,6% CO2, humidified chamber for 5-9 days.

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In Vitro Model Invasive breast carcinoma ZR-75-1 cells CVCL_0588
Experiment 19 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
3.01 nM
Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 20 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
6.88 nM
Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Ovarian clear cell adenocarcinoma TOV-21G cells CVCL_3613
Experiment 21 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
10.00 nM
Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Pancreatic ductal adenocarcinoma HPAF-II cells CVCL_0313
Experiment 22 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
14.40 nM
Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Invasive breast carcinoma of no special type BT-20 cells CVCL_0178
Experiment 23 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 30.00 nM Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Ductal carcinoma BT-483 cells CVCL_2319
Experiment 24 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 30.00 nM Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model High grade ovarian serous adenocarcinoma Caov-4 cells CVCL_0202
Experiment 25 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 30.00 nM Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Endocervical adenocarcinoma HeLa cells CVCL_0030
Experiment 26 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 30.00 nM Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Invasive breast carcinoma T-47D cells CVCL_0553
Experiment 27 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
32.00 nM
Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Pancreatic adenocarcinoma Hs 766T cells CVCL_0334
Experiment 28 Reporting the Activity Date of This ADC [51]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
846 nM
Positive CA6 expression (CA6 +++/++)
Method Description
In the MTT assay, cells were seeded in 96-well plates ata density of 1000-5000 cells/well. The cells were plated with serial dilutions of either naked muDS6 or muDS6-DM1 immunoconjugate in 200 pl of culture media. The cells and antibody/conjugate mixtures were then incubated for 2-7 d, at which time cellviability was assessed by an MTT assay.
In Vitro Model Ovarian serous adenocarcinoma OVCAR-5 cells CVCL_1628
M9346A-SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [47]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 20) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugates of the exemplary anti-FOLR1 antibodies were tested using an established xenograft model of OVCAR-3 cells implanted subcutaneous into SCID mice. Mice were randomized by body weight into treatment groups and treated once post cell inoculation with 10 mg/kg of one of the conjugates listed above or with PBS only.
In Vivo Model OVCAR-3 CDX model
In Vitro Model Ovarian serous adenocarcinoma OVCAR-3 cells CVCL_0465
CAC10-Gly5-MAY [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [52]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 14) High CD30 expression (CD30+++)
Method Description
CD30 Karpas-299 cells were either transplanted subcutaneously into NSG, or into CB17.SCID mice. Mice were treated intravenously 3 times weekly with 1 mg/kg preparations, beginning one day post randomization, when the tumors had reached a size ranging between 100 and 150 mm3.
In Vivo Model Non-Hodgkin's lymphoma CDX model
In Vitro Model ALK-positive anaplastic large cell lymphoma Karpas-299 cells CVCL_1324
Experiment 2 Reporting the Activity Date of This ADC [52]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 16) High CD30 expression (CD30+++)
Method Description
CD30 Karpas-299 cells were either transplanted subcutaneously into NSG, or into CB17.SCID mice. Mice were treated intravenously 3 times weekly with 10 mg/kg ADC preparations, beginning one day post randomization, when the tumors had reached a size ranging between 100 and 150 mm3.
In Vivo Model Non-Hodgkin's lymphoma CDX model
In Vitro Model ALK-positive anaplastic large cell lymphoma Karpas-299 cells CVCL_1324
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [52]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.70 ng/mL
High CD30 expression (CD30+++)
Method Description
Briefly, cells were plated on 96-well plates in 75 uL growth medium and grown at 37°C in a humidified incubator in a 7.5% CO2 atmosphere. After one day incubation, 25 uL of 3.5-fold serial dilutions of each ADC in growth medium were added, typically resulting in final ADC concentrations from 20 ug/mL to 0.02 ng/mL.
In Vitro Model ALK-positive anaplastic large cell lymphoma Karpas-299 cells CVCL_1324
Trastuzumab-AJICAP-maytansinoid [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [16]
Efficacy Data Minimal Effective Dose (MED) < 5.00 mg/kg High HER2 expression (HER2+++)
Method Description
Following the acclimatization period (1 week), the animals were stratified by body weight and randomly assigned to the following group: three trastuzumab-AJICAP-maytansinoid groups, treated with 20 mg/kg, 60 mg/kg, and 120 mg/kg. Each group consisted of five animals for blood chemistry test as well as five animals for clinical signs and body weight measurements.

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In Vivo Model Gastric cancer CDX model
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Experiment 2 Reporting the Activity Date of This ADC [16]
Efficacy Data Maximum Tolerated Dose (MTD) > 120.00 mg/kg High HER2 expression (HER2+++)
Method Description
Following the acclimatization period (1 week), the animals were stratified by body weight and randomly assigned to the following group: three trastuzumab-AJICAP-maytansinoid groups, treated with 20 mg/kg, 60 mg/kg, and 120 mg/kg. Each group consisted of five animals for blood chemistry test as well as five animals for clinical signs and body weight measurements.

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In Vivo Model Gastric cancer CDX model
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
FR1-48-SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.05 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugate in various concentrations was added to FOLR1-expressing cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
FR1-65-SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugate in various concentrations was added to FOLR1-expressing cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
FR1-57-SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugate in various concentrations was added to FOLR1-expressing cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
FR1-49-SMCC-DM1 [Investigative]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Conjugate in various concentrations was added to FOLR1-expressing cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Anti-KIT 9P3?CX1-1-DM1 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 10 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
95.00 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Erythroleukemia HEL 92.1.7 cells CVCL_2481
Experiment 2 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
55.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 3 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
100.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 4 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
100.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Adult acute myeloid leukemia SKNO-1 cells CVCL_2196
Experiment 5 Reporting the Activity Date of This ADC [40]
Efficacy Data Max inhibition rate (MIR)
100.00%
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 6 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
0.02 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Myeloid leukemia with maturation Kasumi-1 cells CVCL_0589
Experiment 7 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
0.04 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 8 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
1.45 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 9 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
5.20 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Adult acute myeloid leukemia SKNO-1 cells CVCL_2196
Experiment 10 Reporting the Activity Date of This ADC [40]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50)
7.60 nM
Positive KIT expression (KIT+++/++)
Method Description
Cells were cultured in a tissue culture incubator at 37°C with 5% CO2 in culture medium. On the day of the assay, cells were washed twice with PBS, prior to being treated with 0.1% trypsin-EDTA for 5 min and resuspended in the recommended culture medium. Cells were then counted and seeded in 96 well plates at densities of 2,000-10,000 cells/well in 100 ul of cell culture medium.

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In Vitro Model Erythroleukemia HEL 92.1.7 cells CVCL_2481
T-DM1-2.6 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [53]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.04 nM
Positive HER2 expression (HER2+++/++)
Method Description
Cells were cultured in a 10% fetal bovine serum (FBS)-containing RPMI 1640 medium and were planted into 96-well plates with 6000 cells per well. The plates were incubated overnight at 37°C in a 5% CO2 cell incubator.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 2 Reporting the Activity Date of This ADC [53]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.05 nM
Positive HER2 expression (HER2+++/++)
Method Description
Cells were cultured in a 10% fetal bovine serum (FBS)-containing RPMI 1640 medium and were planted into 96-well plates with 6000 cells per well. The plates were incubated overnight at 37°C in a 5% CO2 cell incubator.
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Experiment 3 Reporting the Activity Date of This ADC [53]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 66.00 nM Negative HER2 expression (HER2 -)
Method Description
Cells were cultured in a 10% fetal bovine serum (FBS)-containing RPMI 1640 medium and were planted into 96-well plates with 6000 cells per well. The plates were incubated overnight at 37°C in a 5% CO2 cell incubator.
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
H32-DM1_3.8 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.05 nM±0.05 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 2 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.54 nM±0.07 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Experiment 3 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.76 nM±0.15 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
H32-DM1_3.3 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.05 nM±0.02 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 2 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.65 nM±0.04 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Experiment 3 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.65 nM±0.05 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
H32-DM1_3.7 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.06 nM±0.04 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 2 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.75 nM±0.06 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Experiment 3 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.79 nM±0.24 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
H32-DM1_3.0 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.08 nM±0.01 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 2 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.77 nM±0.15 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Experiment 3 Reporting the Activity Date of This ADC [19]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.84 nM±0.15 nM
High HER2 expression (HER2 +++)
Method Description
To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
huMov19-PEG4-Mal-DM1 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
A PEG4-mal-DM4 conjugate in various concentrations was added to FOLR1-expressing KB cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.10 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
A PEG4-mal-DM4 conjugate in various concentrations was added to FOLR1-expressing KB cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
M9346A-4d-Cxxx-Mal-CX-DM1 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [44]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.15 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Cytotoxic IC50 Values (as a Function of [ADC] and [DM1]) for Various M9346A-CX-DM1 ADCs against FR-Expressing KB Cells in the absence of 1 M unconjugated M9346A antibody.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [44]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.00 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Cytotoxic IC50 Values (as a Function of [ADC] and [DM1]) for Various M9346A-CX-DM1 ADCs against FOLR1-Expressing KB Cells in the presence of 1 M unconjugated M9346A antibody.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
M9346A-4c-Cxxx-Mal-CX-DM1 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [44]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.15 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Cytotoxic IC50 Values (as a Function of [ADC] and [DM1]) for Various M9346A-CX-DM1 ADCs against FR-Expressing KB Cells in the absence of 1 M unconjugated M9346A antibody.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [44]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.00 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
Cytotoxic IC50 Values (as a Function of [ADC] and [DM1]) for Various M9346A-CX-DM1 ADCs against FOLR1-Expressing KB Cells in the presence of 1 M unconjugated M9346A antibody.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
5E3-emtansine [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 10 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [55]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.21 nM
Positive SEMA4A expression (SEMA4A +++/++)
Method Description
Cells were seeded at 5000 per well in a 96-well plate in complete RPMI 1640. Antibody-ZAP complexes (Advanced Targeting Systems; produced according to manufacturer's instructions) or ADCs were added to the cells and plates incubated for 72 hours and 5% carbon dioxide.
In Vitro Model Plasma cell myeloma MM1.S cells CVCL_8792
Experiment 2 Reporting the Activity Date of This ADC [55]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.42 nM
Positive SEMA4A expression (SEMA4A +++/++)
Method Description
Cells were seeded at 5000 per well in a 96-well plate in complete RPMI 1640. Antibody-ZAP complexes (Advanced Targeting Systems; produced according to manufacturer's instructions) or ADCs were added to the cells and plates incubated for 72 hours and 5% carbon dioxide.
In Vitro Model Plasma cell myeloma NCI-H929 cells CVCL_1600
Experiment 3 Reporting the Activity Date of This ADC [55]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.30 nM
Positive SEMA4A expression (SEMA4A +++/++)
Method Description
Cells were seeded at 5000 per well in a 96-well plate in complete RPMI 1640. Antibody-ZAP complexes (Advanced Targeting Systems; produced according to manufacturer's instructions) or ADCs were added to the cells and plates incubated for 72 hours and 5% carbon dioxide.
In Vitro Model Plasma cell myeloma INA-6 cells CVCL_5209
Experiment 4 Reporting the Activity Date of This ADC [55]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.80 nM
Positive SEMA4A expression (SEMA4A +++/++)
Method Description
Cells were seeded at 5000 per well in a 96-well plate in complete RPMI 1640. Antibody-ZAP complexes (Advanced Targeting Systems; produced according to manufacturer's instructions) or ADCs were added to the cells and plates incubated for 72 hours and 5% carbon dioxide.
In Vitro Model Plasma cell myeloma OCI-My7 cells CVCL_E333
Experiment 5 Reporting the Activity Date of This ADC [55]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
9.90 nM
Positive SEMA4A expression (SEMA4A +++/++)
Method Description
Cells were seeded at 5000 per well in a 96-well plate in complete RPMI 1640. Antibody-ZAP complexes (Advanced Targeting Systems; produced according to manufacturer's instructions) or ADCs were added to the cells and plates incubated for 72 hours and 5% carbon dioxide.
In Vitro Model Plasma cell myeloma OCI-My5 cells CVCL_E332
Experiment 6 Reporting the Activity Date of This ADC [55]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
12.90 nM
Positive SEMA4A expression (SEMA4A +++/++)
Method Description
Cells were seeded at 5000 per well in a 96-well plate in complete RPMI 1640. Antibody-ZAP complexes (Advanced Targeting Systems; produced according to manufacturer's instructions) or ADCs were added to the cells and plates incubated for 72 hours and 5% carbon dioxide.
In Vitro Model Plasma cell myeloma KMS-12-BM cells CVCL_1334
Experiment 7 Reporting the Activity Date of This ADC [55]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
16.90 nM
Positive SEMA4A expression (SEMA4A +++/++)
Method Description
Cells were seeded at 5000 per well in a 96-well plate in complete RPMI 1640. Antibody-ZAP complexes (Advanced Targeting Systems; produced according to manufacturer's instructions) or ADCs were added to the cells and plates incubated for 72 hours and 5% carbon dioxide.
In Vitro Model Multiple myeloma SK-MM-1 cells CVCL_A478
Experiment 8 Reporting the Activity Date of This ADC [55]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
35.30 nM
Positive SEMA4A expression (SEMA4A +++/++)
Method Description
Cells were seeded at 5000 per well in a 96-well plate in complete RPMI 1640. Antibody-ZAP complexes (Advanced Targeting Systems; produced according to manufacturer's instructions) or ADCs were added to the cells and plates incubated for 72 hours and 5% carbon dioxide.
In Vitro Model Plasma cell myeloma OPM-2 cells CVCL_1625
Experiment 9 Reporting the Activity Date of This ADC [55]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
37.00 nM
Positive SEMA4A expression (SEMA4A +++/++)
Method Description
Cells were seeded at 5000 per well in a 96-well plate in complete RPMI 1640. Antibody-ZAP complexes (Advanced Targeting Systems; produced according to manufacturer's instructions) or ADCs were added to the cells and plates incubated for 72 hours and 5% carbon dioxide.
In Vitro Model Plasma cell myeloma JIM3 cells CVCL_2533
Experiment 10 Reporting the Activity Date of This ADC [55]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
39.60 nM
Positive SEMA4A expression (SEMA4A +++/++)
Method Description
Cells were seeded at 5000 per well in a 96-well plate in complete RPMI 1640. Antibody-ZAP complexes (Advanced Targeting Systems; produced according to manufacturer's instructions) or ADCs were added to the cells and plates incubated for 72 hours and 5% carbon dioxide.
In Vitro Model Plasma cell myeloma LP-1 cells CVCL_0012
EGFRvIII-MCC-DM1 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [56]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.40 nM
Positive EGFR vIII expression (EGFR vIII+++/++)
Method Description
Cells were seeded in PDL-coated 96 well plates at 375 for MMT/hEGFRvIII, 1500 for U251/hEGFRvIII, 2000 for HEK293/hEGFRvIII, or 3000 for C4-2, PC3, and T47D cells per well in complete growth media and grown overnight.
In Vitro Model Normal HEK293 cells CVCL_0045
Experiment 2 Reporting the Activity Date of This ADC [56]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
3.00 nM
Positive EGFR vIII expression (EGFR vIII+++/++)
Method Description
Cells were seeded in PDL-coated 96 well plates at 375 for MMT/hEGFRvIII, 1500 for U251/hEGFRvIII, 2000 for HEK293/hEGFRvIII, or 3000 for C4-2, PC3, and T47D cells per well in complete growth media and grown overnight.
In Vitro Model Astrocytoma U-251MG cells CVCL_0021
Experiment 3 Reporting the Activity Date of This ADC [56]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
10.00 nM
Positive EGFR vIII expression (EGFR vIII+++/++)
Method Description
Cells were seeded in PDL-coated 96 well plates at 375 for MMT/hEGFRvIII, 1500 for U251/hEGFRvIII, 2000 for HEK293/hEGFRvIII, or 3000 for C4-2, PC3, and T47D cells per well in complete growth media and grown overnight.
In Vitro Model Malignant neoplasms of the mouse mammary gland MMT-060562 cells CVCL_4241
Cet-DM1 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 5 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [57]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.85 nM
High EGFR expression (EGFR+++/++)
Method Description
HCC1954 cells (20,000) were plated in 150 mm dishes and treated with 1 nM T-DM1 (media replaced weekly). Resistant HCC1954 T-DM1R clones (HCC-TDM1R#) were obtained by single-cell cloning and continuously cultured in the presence of 1 nM T-DM1 for a total period of 5 months.
In Vivo Model HCC1954/TDR CDX model (CDX: C#10)
In Vitro Model Breast ductal carcinoma HCC1954 T-DM1R (T-DM1 resistance) cells CVCL_1259
Experiment 2 Reporting the Activity Date of This ADC [57]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.85 nM
High EGFR expression (EGFR+++/++)
Method Description
HCC1954 cells (20,000) were plated in 150 mm dishes and treated with 1 nM T-DM1 (media replaced weekly). Resistant HCC1954 T-DM1R clones (HCC-TDM1R#) were obtained by single-cell cloning and continuously cultured in the presence of 1 nM T-DM1 for a total period of 5 months.
In Vivo Model HCC1954/TDR CDX model (CDX: C#19)
In Vitro Model Breast ductal carcinoma HCC1954 T-DM1R (T-DM1 resistance) cells CVCL_1259
Experiment 3 Reporting the Activity Date of This ADC [57]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.41 nM
High EGFR expression (EGFR+++/++)
Method Description
HCC1954 cells (20,000) were plated in 150 mm dishes and treated with 1 nM T-DM1 (media replaced weekly). Resistant HCC1954 T-DM1R clones (HCC-TDM1R#) were obtained by single-cell cloning and continuously cultured in the presence of 1 nM T-DM1 for a total period of 5 months.
In Vitro Model Breast ductal carcinoma HCC1954 cells CVCL_1259
Experiment 4 Reporting the Activity Date of This ADC [57]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
3.52 nM
High EGFR expression (EGFR+++/++)
Method Description
HCC1954 cells (20,000) were plated in 150 mm dishes and treated with 1 nM T-DM1 (media replaced weekly). Resistant HCC1954 T-DM1R clones (HCC-TDM1R#) were obtained by single-cell cloning and continuously cultured in the presence of 1 nM T-DM1 for a total period of 5 months.
In Vivo Model HCC1954/TDR CDX model (CDX: C#20)
In Vitro Model Breast ductal carcinoma HCC1954 T-DM1R (T-DM1 resistance) cells CVCL_1259
Experiment 5 Reporting the Activity Date of This ADC [57]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
7.68 nM
High EGFR expression (EGFR+++/++)
Method Description
HCC1954 cells (20,000) were plated in 150 mm dishes and treated with 1 nM T-DM1 (media replaced weekly). Resistant HCC1954 T-DM1R clones (HCC-TDM1R#) were obtained by single-cell cloning and continuously cultured in the presence of 1 nM T-DM1 for a total period of 5 months.
In Vivo Model HCC1954/TDR CDX model (CDX: C#29)
In Vitro Model Breast ductal carcinoma HCC1954 T-DM1R (T-DM1 resistance) cells CVCL_1259
huFR1-21-PEG4-Mal-DM1 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.00 nM-10.00 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
A PEG4-mal-DM4 conjugate in various concentrations was added to FOLR1-expressing KB cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium. Antibodies and conjugates were diluted into complete RPMI medium using 3-fold dilution seriesand 100 pL were added per well.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
Experiment 2 Reporting the Activity Date of This ADC [47]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.00 nM-10.00 nM
Positive FOLR1 expression (FOLR1 +++/++)
Method Description
A PEG4-mal-DM4 conjugate in various concentrations was added to FOLR1-expressing KB cells in a 96 well plate at 1,000 cells per well in 100 pL in complete RPMI medium. Antibodies and conjugates were diluted into complete RPMI medium using 3-fold dilution seriesand 100 pL were added per well.
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
40H3-SMCC-DM1 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [59]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
6.65 nM
High EGFR expression (EGFR+++)
Method Description
1 x104 cells per well in a volume of 100 ul were plated in 96-well tissue culture plates. After 24 h, ADCs were added at the indicated concentrations. After 72 h, the medium was removed and the viability was determined using the CellTiter-Glo luminescent cell viability assay kit.
In Vitro Model Breast adenocarcinoma MDA-MB-468 cells CVCL_0419
Experiment 2 Reporting the Activity Date of This ADC [59]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
89.60 nM
High EGFR expression (EGFR+++)
Method Description
1 x104 cells per well in a volume of 100 ul were plated in 96-well tissue culture plates. After 24 h, ADCs were added at the indicated concentrations. After 72 h, the medium was removed and the viability was determined using the CellTiter-Glo luminescent cell viability assay kit.
In Vitro Model Skin squamous cell carcinoma A431 cells CVCL_0037
Experiment 3 Reporting the Activity Date of This ADC [59]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100.00 nM Moderate EGFR expression (EGFR++)
Method Description
1 x104 cells per well in a volume of 100 ul were plated in 96-well tissue culture plates. After 24 h, ADCs were added at the indicated concentrations. After 72 h, the medium was removed and the viability was determined using the CellTiter-Glo luminescent cell viability assay kit.
In Vitro Model Invasive breast carcinoma of no special type BT-20 cells CVCL_0178
Experiment 4 Reporting the Activity Date of This ADC [59]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100.00 nM Negative EGFR expression (EGFR-)
Method Description
1 x104 cells per well in a volume of 100 ul were plated in 96-well tissue culture plates. After 24 h, ADCs were added at the indicated concentrations. After 72 h, the medium was removed and the viability was determined using the CellTiter-Glo luminescent cell viability assay kit.
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
ch735-Py-DM1 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [60]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
50.00 nM
Positive polySia expression (polySia +++/++)
Method Description
Cells were plated at 5,000, 2,500, and 2,500 cells/well, respectively, and allowed to rest for 24 h. Five-fold serial dilutions of the antibodies were added starting at 150 nM and incubated for 72-144 h.
In Vitro Model Bone marrow neuroblastoma SH-SY5Y cells CVCL_0019
Experiment 2 Reporting the Activity Date of This ADC [60]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100 nM Negative polySia expression (polySia -)
Method Description
Cells were plated at 5,000, 2,500, and 2,500 cells/well, respectively, and allowed to rest for 24 h. Five-fold serial dilutions of the antibodies were added starting at 150 nM and incubated for 72-144 h.
In Vitro Model Invasive breast carcinoma MCF-7 cells CVCL_0031
T-Py-DM1 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [60]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100 nM Negative HER2 expression (HER2 -)
Method Description
Cells were plated at 5,000, 2,500, and 2,500 cells/well, respectively, and allowed to rest for 24 h. Five-fold serial dilutions of the antibodies were added starting at 150 nM and incubated for 72-144 h.
In Vitro Model Bone marrow neuroblastoma SH-SY5Y cells CVCL_0019
Experiment 2 Reporting the Activity Date of This ADC [60]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
144 nM
Positive HER2 expression (HER2 +++/++)
Method Description
Cells were plated at 5,000, 2,500, and 2,500 cells/well, respectively, and allowed to rest for 24 h. Five-fold serial dilutions of the antibodies were added starting at 150 nM and incubated for 72-144 h.
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
2G10 RED-106 maytansine 2 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [38]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 500 nM Positive PLAUR expression (PLAUR +++/++)
Method Description
MDA-MB-231 cells (0.5x104 cells/well) were seeded in 96-well plates at the density and incubated for 120 h (5 days) with of ADCs or IgG. After 5 days of drug treatment at 37°C with 5% CO2.
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Tras-Gly5-May [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [52]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
18.00 ng/mL
High HER2 expression (HER2+++; 694,000 HER2 molecules/cell)
Method Description
Briefly, cells were plated on 96-well plates in 75 uL growth medium and grown at 37°C in a humidified incubator in a 7.5% CO2 atmosphere. After one day incubation, 25 uL of 3.5-fold serial dilutions of each ADC in growth medium were added, typically resulting in final ADC concentrations from 20 ug/mL to 0.02 ng/mL.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 2 Reporting the Activity Date of This ADC [52]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 110.00 ng/mL Moderate HER2 expression (HER2++; 32,000 HER2 molecules/cell)
Method Description
Briefly, cells were plated on 96-well plates in 75 uL growth medium and grown at 37°C in a humidified incubator in a 7.5% CO2 atmosphere. After one day incubation, 25 uL of 3.5-fold serial dilutions of each ADC in growth medium were added, typically resulting in final ADC concentrations from 20 ug/mL to 0.02 ng/mL.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
T-FcBP-DM1 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [61]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
81.64 ng/mL
Positive HER2 expression (HER2 +++/++)
Method Description
Cells were seeded at 5000 per well in a 96-well plate in complete RPMI 1640. Antibody-ZAP complexes (Advanced Targeting Systems; produced according to manufacturer's instructions) or ADCs were added to the cells and plates incubated for 72 hours and 5% carbon dioxide.
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Experiment 2 Reporting the Activity Date of This ADC [61]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 800 ng/mL Negative HER2 expression (HER2 -)
Method Description
Cells were seeded at 5000 per well in a 96-well plate in complete RPMI 1640. Antibody-ZAP complexes (Advanced Targeting Systems; produced according to manufacturer's instructions) or ADCs were added to the cells and plates incubated for 72 hours and 5% carbon dioxide.
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
GABRP Ab-DM1 ADC [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 5 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [62]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
100 ng/mL - 500 ng/mL
Positive GABRP expression (GABRP+++/++)
Method Description
Cells were plated at 2000 cells/well in triplicate in 96-well plates and exposed to GABRP Ab-DM1 ADC and control IgG-DM1 for 3 days.
In Vitro Model Breast adenocarcinoma MDA-MB-468 cells CVCL_0419
Experiment 2 Reporting the Activity Date of This ADC [62]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
100 ng/mL - 500 ng/mL
Positive GABRP expression (GABRP+++/++)
Method Description
Cells were plated at 2000 cells/well in triplicate in 96-well plates and exposed to GABRP Ab-DM1 ADC and control IgG-DM1 for 3 days.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 3 Reporting the Activity Date of This ADC [62]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 500 ng/mL Positive GABRP expression (GABRP+++/++)
Method Description
Cells were plated at 2000 cells/well in triplicate in 96-well plates and exposed to GABRP Ab-DM1 ADC and control IgG-DM1 for 3 days.
In Vitro Model Breast ductal carcinoma HCC1143 cells CVCL_1245
Experiment 4 Reporting the Activity Date of This ADC [62]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 500 ng/mL Positive GABRP expression (GABRP+++/++)
Method Description
Cells were plated at 2000 cells/well in triplicate in 96-well plates and exposed to GABRP Ab-DM1 ADC and control IgG-DM1 for 3 days.
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Experiment 5 Reporting the Activity Date of This ADC [62]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 500 ng/mL Positive GABRP expression (GABRP+++/++)
Method Description
Cells were plated at 2000 cells/well in triplicate in 96-well plates and exposed to GABRP Ab-DM1 ADC and control IgG-DM1 for 3 days.
In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Bivatuzumab mertansine [Terminated in phase 1]
Identified from the Human Clinical Data
Click To Hide/Show 6 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [63]
Efficacy Data Objective Response Rate (ORR)
0.00%
Patients Enrolled
Metastatic breast cancer (MBC) that expresses CD44v6 in at least 50% of tumor cells in primary tumor tissue as assessed by immunohistochemistry, pretreatment with anthracyclines and taxanes, tumor metastases measurable by computed tomography (CT) or magnetic resonance imaging (MRI), life expectancy of at least 6 months, no chemotherapy, radiotherapy or immunotherapy within the last 4 weeks before study entry, adequate organ function, Eastern Cooperative Oncology Group performance score 2.

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Administration Dosage
One single intravenous infusion over 30 min, dose was escalated in 25 mg/m2 increments up to the maximum tolerated dose (MTD).
Related Clinical Trial
NCT Number NCT02254005  Phase Status Phase 1
Clinical Description
An open phase 1 single dose escalation study of bivatuzumab mertansine administered intravenously in female patients with CD44v6 positive metastatic breast cancer with repeated administration in patients with clinical benefit.
Primary Endpoint
The MTD in this trial could not be determined.
Other Endpoint
No objective responses were observed. Disease stabilization was achieved in 50.00% of patients independently of dose level.
Experiment 2 Reporting the Activity Date of This ADC [67]
Related Clinical Trial
NCT Number NCT02254044  Phase Status Phase 1
Clinical Description
An open phase 1 dose escalation study of bivatuzumab mertansine administered intravenously once per week for three weeks in patients with advanced squamous cell carcinoma of the head and neck or esophagus with repeated administration courses in patients with clinical benefit.
Experiment 3 Reporting the Activity Date of This ADC [68]
Patients Enrolled
Ecurrent or metastatic head and neck squamous cell carcinoma (HNSCC) not amenable to established treatments, an ECOG score 2, and an estimated life expectancy of at least 6 months, a tumor diameter of at least 1 cm in CT or MRI scans was also required.
Administration Dosage
Starting with 25 mg/m2, the dose was escalated in steps of 25 mg/m2 until dose limiting toxicity was observed, intravenously.
Related Clinical Trial
NCT Number NCT02254044  Phase Status Phase 1
Clinical Description
An open phase 1 dose escalation study of bivatuzumab mertansine administered intravenously once per week for three weeks in patients with advanced squamous cell carcinoma of the head and neck or esophagus with repeated administration courses in patients with clinical benefit.
Primary Endpoint
The MTD was 300 mg/m2.
Other Endpoint
Due to the premature discontinuation of the trial efficacy complying with the study plan could not be assessed. In 3 patients,a partial response at doses of 2.00, 2.75 and 3.25 mg/m2.
Experiment 4 Reporting the Activity Date of This ADC [69]
Related Clinical Trial
NCT Number NCT02254031  Phase Status Phase 1
Clinical Description
An open phase 1 dose escalation study of bivatuzumab mertansine administered intravenously once per week for three weeks in female patients with CD44V6 positive recurrent or metastatic breast cancer with repeated administration courses in patients with clinical.
Experiment 5 Reporting the Activity Date of This ADC [70]
Related Clinical Trial
NCT Number NCT02254018  Phase Status Phase 1
Clinical Description
An open phase 1 single dose escalation study of bivatuzumab mertansine administered intravenously in patients with advanced squamous cell carcinoma of the head and neck with repeated administration in patients with clinical benefit.
Experiment 6 Reporting the Activity Date of This ADC [71]
Related Clinical Trial
NCT Number NCT02254005  Phase Status Phase 1
Clinical Description
An open phase 1 single dose escalation study of bivatuzumab mertansine administered intravenously in female patients with CD44v6 positive metastatic breast cancer with repeated administration in patients with clinical benefit.
Cantuzumab mertansine [Terminated in phase 1]
Identified from the Human Clinical Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [64]
Efficacy Data Objective Response Rate (ORR)
0.00%
Patients Enrolled
Histological documentation of advanced or metastatic epithelial solid tumor which were likely to express the CanAg antigen, that were refractory or resistant to standard chemotherapy, or for which no effective standard therapy exists.
Administration Dosage
IV infusion at an initial dose of 30 mg/m2, three times per week for three consecutive weeks for a total of nine doses.
Experiment 2 Reporting the Activity Date of This ADC [72]
Patients Enrolled
Solid malignancies refractory to standard therapy or for whom no standard therapy existed.
Administration Dosage
IV cantuzumab mertansine was administered at a rate of 1 mg/min for 30 minutes and then increased to 3 mg/min if hypersensitivity phenomena were not observed. Treatment courses were repeated every 3 weeks.
PCA-062 [Terminated in phase 1]
Identified from the Human Clinical Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [65]
Efficacy Data Disease Control Rate (DCR)
22.60% (31 patients with other tumors)
33.30% (HNSCC)
22.20% (esophageal cancer)
Patients Enrolled
Advanced solid tumors expressing P-cadherin, TNBC, head and neck squamous cell carcinoma (HNSCC), esophageal cancer, cervical cancer, and non-small cell lung cancer (NSCLC).
Administration Dosage
At 10 different dose levels of PCA062, ranging from 0.40 to 5.00 mg/kg every 2 weeks administered as a 1-hour intravenous infusion.
Related Clinical Trial
NCT Number NCT02375958  Phase Status Phase 1
Clinical Description
A phase 1 multi-center, open-label dose escalation and expansion study of PCA062 administered intravenously in adult patients with p-CAD positive tumors.
Primary Endpoint
The MTD was PCA062 3.60 mg/kg every 2 weeks.No patient achieved a complete response. Only 1 patient with stage IV metastatic HNSCC treated at 0.90 mg/kg achieved a confirmed partial response (PR) as best overall response (BOR). The disease control rate (DCR) for the 31 patients with other tumors was 22.60% (95% CI, 9.60-41.10). In patients with HNSCC (n = 6), DCR was 33.30% (95% CI, 4.30-77.70), and in patients with esophageal cancer (n = 9), DCR was 22.20% (95% CI, 2.80-60.00).

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Laprituximab emtansine [Terminated in phase 1]
Identified from the Human Clinical Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [66]
Related Clinical Trial
NCT Number NCT01963715  Phase Status Phase 1
Clinical Description
A phase 1, multi-center, open-label study of IMGN289 administered intravenously in adult patients with EGFR-positive solid tumors.
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [74]
Efficacy Data Tumor Growth Inhibition value (TGI)
58.30%
High EGFR expression (EGFR+++/++)
Method Description
The cytotoxic activity of IMGN289 was evaluated against a panel of SCCHN cell lines in vitro. Immunodeficient mice bearing established subcutaneous xenograft tumors were treated with a single intravenous injection of IMGN289 at 1,2.5 or 5.0 mg/kg (based on antibody concentration). IMGN289 dose was 5 mg/kg administered as a single injection.
In Vivo Model Head and neck squamous cell carcinomas CDX model
In Vitro Model Hypopharyngeal squamous cell carcinoma FaDu cells CVCL_1218
Experiment 2 Reporting the Activity Date of This ADC [74]
Efficacy Data Tumor Growth Inhibition value (TGI)
83.30%
High EGFR expression (EGFR+++/++)
Method Description
The cytotoxic activity of IMGN289 was evaluated against a panel of SCCHN cell lines in vitro. Immunodeficient mice bearing established subcutaneous xenograft tumors were treated with a single intravenous injection of IMGN289 at 1,2.5 or 5.0 mg/kg (based on antibody concentration). IMGN289 dose was 5 mg/kg administered as a single injection.
In Vivo Model Head and neck squamous cell carcinomas CDX model
In Vitro Model Oral cavity squamous cell carcinoma HSC-2 cells CVCL_1287
Experiment 3 Reporting the Activity Date of This ADC [74]
Efficacy Data Minimal Effective Dose (MED)
1.00 mg/kg
High EGFR expression (EGFR+++/++)
Method Description
The cytotoxic activity of IMGN289 was evaluated against a panel of SCCHN cell lines in vitro. Immunodeficient mice bearing established subcutaneous xenograft tumors were treated with a single intravenous injection of IMGN289 at 1,2.5 or 5.0 mg/kg (based on antibody concentration).
In Vivo Model Head and neck squamous cell carcinomas CDX model
In Vitro Model Hypopharyngeal squamous cell carcinoma FaDu cells CVCL_1218
Experiment 4 Reporting the Activity Date of This ADC [74]
Efficacy Data Minimal Effective Dose (MED)
2.50 mg/kg
High EGFR expression (EGFR+++/++)
Method Description
The cytotoxic activity of IMGN289 was evaluated against a panel of SCCHN cell lines in vitro. Immunodeficient mice bearing established subcutaneous xenograft tumors were treated with a single intravenous injection of IMGN289 at 1,2.5 or 5.0 mg/kg (based on antibody concentration).
In Vivo Model Head and neck squamous cell carcinomas CDX model
In Vitro Model Oral cavity squamous cell carcinoma HSC-2 cells CVCL_1287
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [75]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.25 nM
High EGFR expression (EGFR+++/++)
Method Description
Effects of IMGN289 on clonogenicity and proliferation were tested in HNSCC cell lines with varying cetuximab and gefitinib sensitivities.
In Vitro Model Head and neck squamous cell carcinoma HNSCC cells Homo sapiens
LOP-628 [Terminated in phase 1]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 7 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [73]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 43.30% Positive KIT expression (KIT+++/++)
Method Description
The in vivo antitumor activity of LOP-628 was evaluated in a c-KIT positive GIST430 xenograft model. Animals were administered a single i.v. injection of the vehicle, IgG-ADC, or LOP628, LMJ729, imatinib.
In Vivo Model KIT-expressing GIST430 xenograft model
In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 2 Reporting the Activity Date of This ADC [73]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 46.00% Positive KIT expression (KIT+++/++)
Method Description
The in vivo antitumor activity of LOP-628 was evaluated in a c-KIT positive NCI-H1048 SCLC xenograft model. Animals were administered a single i.v. injection of the vehicle, IgG-ADC, or LOP628; twice daily 80 mg/kg oral doses of imatinib or the combination of LOP628 with imatinib.
In Vivo Model KIT-expressing NCI-H1048 SCLC xenograft model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 3 Reporting the Activity Date of This ADC [73]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 75.00% Positive KIT expression (KIT+++/++)
Method Description
The in vivo antitumor activity of LOP-628 was evaluated in a c-KIT positive GIST430 xenograft model. Animals were administered a single i.v. injection of the vehicle, IgG-ADC, or LOP628, LMJ729, imatinib.
In Vivo Model KIT-expressing GIST430 xenograft model
In Vitro Model Gastrointestinal stromal tumor GIST430 cells CVCL_7040
Experiment 4 Reporting the Activity Date of This ADC [73]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 80.20% Positive KIT expression (KIT+++/++)
Method Description
The in vivo antitumor activity of LOP-628 was evaluated in a c-KIT positive GIST-T1 xenograft model. Animals were administered a single i.v. injection of the vehicle, IgG-ADC, or LOP628; twice daily 80 mg/kg oral doses of imatinib or the combination of LOP628 with imatinib.
In Vivo Model KIT-expressing GIST-T1 xenograft model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 5 Reporting the Activity Date of This ADC [73]
Efficacy Data Tumor Growth Inhibition value (TGI)
82.20%
Positive KIT expression (KIT+++/++)
Method Description
The in vivo antitumor activity of LOP-628 was evaluated in a c-KIT positive GIST-T1 xenograft model. An efficacy study (single 0.625 mg/kg dose) in the GIST-T1 xenograft model in mice was performed.
In Vivo Model KIT-expressing GIST-T1 xenograft model
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 6 Reporting the Activity Date of This ADC [73]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 87.30% Positive KIT expression (KIT+++/++)
Method Description
The in vivo antitumor activity of LOP-628 was evaluated in a c-KIT positive NCI-H1048 SCLC xenograft model. Animals were administered a single i.v. injection of the vehicle, IgG-ADC, or LOP628; twice daily 80 mg/kg oral doses of imatinib or the combination of LOP628 with imatinib.
In Vivo Model KIT-expressing NCI-H1048 SCLC xenograft model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Experiment 7 Reporting the Activity Date of This ADC [73]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 93.30% Positive KIT expression (KIT+++/++)
Method Description
The in vivo antitumor activity of LOP-628 was evaluated in a c-KIT positive NCI-H1048 SCLC xenograft model. Animals were administered a single i.v. injection of the vehicle, IgG-ADC, or LOP628; twice daily 80 mg/kg oral doses of imatinib or the combination of LOP628 with imatinib.
In Vivo Model KIT-expressing NCI-H1048 SCLC xenograft model
In Vitro Model Lung small cell carcinoma NCI-H1048 cells CVCL_1453
Revealed Based on the Cell Line Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [73]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50) < 0.50 nM Positive KIT expression (KIT+++/++)
Method Description
The inhibitory activity of LOP-628 against cancer cell growth was compared with LMJ729 against cancer cell growth in vitro.
In Vitro Model Gastrointestinal stromal tumor GIST-T1 cells CVCL_4976
Experiment 2 Reporting the Activity Date of This ADC [73]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50) < 1.00 nM Positive KIT expression (KIT+++/++)
Method Description
The inhibitory activity of LOP-628 against cancer cell growth was compared with LMJ729 against cancer cell growth in vitro.
In Vitro Model Lung small cell carcinoma NCI-H526 cells CVCL_1569
Experiment 3 Reporting the Activity Date of This ADC [73]
Efficacy Data Half Maximum Growth Inhibitory Concentration (GI50) > 10.00 nM Negative KIT expression (KIT-)
Method Description
The inhibitory activity of LOP-628 against cancer cell growth was compared with LMJ729 against cancer cell growth in vitro.
In Vitro Model Breast adenocarcinoma MDA-MB-468 cells CVCL_0419
References
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