General Information of This Linker
Linker ID
LIN0ENDIF
Linker Name
Mc-Val-Ala
Linker Type
Cathepsin-cleavable linker
Antibody-Linker Relation
Cleavable
Structure
Formula
C18H27N3O6
Isosmiles
C[C@@H](C(=O)O)NC(=O)[C@H](C(C)C)NC(=O)CCCCCN1C(=O)C=CC1=O
PubChem CID
67452206
InChI
InChI=1S/C18H27N3O6/c1-11(2)16(17(25)19-12(3)18(26)27)20-13(22)7-5-4-6-10-21-14(23)8-9-15(21)24/h8-9,11-12,16H,4-7,10H2,1-3H3,(H,19,25)(H,20,22)(H,26,27)/t12-,16-/m0/s1
InChIKey
GSWKJIWKGSPISH-LRDDRELGSA-N
IUPAC Name
(2S)-2-[[(2S)-2-[6-(2,5-dioxopyrrol-1-yl)hexanoylamino]-3-methylbutanoyl]amino]propanoic acid
Pharmaceutical Properties
Molecule Weight
381.4
Polar area
133
Complexity
611
xlogp Value
0.5
Heavy Count
27
Rot Bonds
11
Hbond acc
6
Hbond Donor
3
Each Antibody-drug Conjugate Related to This Linker
Full Information of The Activity Data of The ADC(s) Related to This Linker
T-VDXd [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 [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.025 nM
In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.052 nM
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.513 nM
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 4 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 50 nM
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Vadastuximab talirine [Phase 3 (discontinued)]
Identified from the Human Clinical Data
Click To Hide/Show 12 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [2]
Patients Enrolled
Eligibility required untreated MDS (WHO 2008) patients ≥18 years with ECOG ≤2 and adequate organ function, excluding prior lenalidomide/HMA treatment, active secondary malignancies (except hormonal therapies), or candidates for immediate stem cell transplant.
Administration Dosage
Intravenous (IV) push every 4 weeks
Related Clinical Trial
NCT Number NCT02706899  Clinical Status PHASE1|||PHASE2
Clinical Description
A Phase 1/2 Study of Vadastuximab Talirine (SGN-CD33A) in Combination With Azacitidine in Patients With Previously Untreated International Prognostic Scoring System (IPSS) Intermediate-2 or High Risk Myelodysplastic Syndrome (MDS)
Primary Endpoint
The phase 1 study evaluating vadastuximab talirine was terminated before establishing a recommended phase 2 dose, with only dose delays/reductions reported, while phase 2 efficacy endpoints (ORR, CR, HI, DOR, PFS, AML transformation, OS) were not assessed due to study discontinuation.
Other Endpoint
Safety analysis captured adverse events and lab abnormalities over 1 year, though all planned phase 2 efficacy comparisons per IWG 2006 criteria (including CR rate, hematologic improvement, and survival outcomes) remained unevaluated following early trial termination.
Experiment 2 Reporting the Activity Date of This ADC [3]
Patients Enrolled
Eligible patients had untreated intermediate/adverse-risk AML (WHO-classified, excluding APL/favorable karyotypes) suitable for HMA therapy, while excluding prior MDS treatment recipients, transplant candidates, and those with myeloproliferative neoplasm histories.
Administration Dosage
33A, 10 mcg/kg, every 4 weeks via intravenous (IV) push
Related Clinical Trial
NCT Number NCT02785900  Clinical Status PHASE3
Clinical Description
A Randomized, Double-blind Phase 3 Study of Vadastuximab Talirine (SGN-CD33A) Versus Placebo in Combination With Azacitidine or Decitabine in the Treatment of Older Patients With Newly Diagnosed Acute Myeloid Leukemia (AML)
Primary Endpoint
The study evaluated overall survival (1.5 years) and composite complete remission (CRc) rate per Cheson 2003 criteria, while assessing MRD-negative CRc status and time to CR/CRi within the same timeframe.
Other Endpoint
Secondary endpoints included duration of remission (9.5 months), event-free survival (11.24 months), leukemia-free survival (9.49 months), safety profile (TEAEs, grade ≥3 lab abnormalities over 1.5 years), and 30-/60-day mortality rates, with censoring rules applied for patients receiving subsequent therapies.
Experiment 3 Reporting the Activity Date of This ADC [4]
Patients Enrolled
Eligible participants had CD33+ AML with ECOG 0-1, adequate organ function, and either relapsed after ≥12-week remission or were untreated with ≥20% blasts, excluding recent transplant recipients (except designated cohort) or those receiving recent antileukemic therapy.
Administration Dosage
Given intravenously on Day 1 or Days 1 and 4 every 3 weeks (SGN-CD33A Monotherapy) or given intravenously on the final HMA dosing day every 4 weeks (SGN-CD33A+HMA)
Related Clinical Trial
NCT Number NCT01902329  Clinical Status PHASE1
Clinical Description
A Phase 1 Trial of SGN-CD33A in Patients With CD33-positive Acute Myeloid Leukemia
Primary Endpoint
The study monitored adverse events and laboratory abnormalities through 1 month post-treatment, while evaluating pharmacokinetics (SGN-CD33A blood concentrations for 3 weeks) and immunogenicity (antitherapeutic antibody incidence).
Other Endpoint
Efficacy assessments included complete remission rate (3 months), duration of response (3 years), relapse-free survival (3 years), and overall survival (3 years) in CD33-positive AML patients.
Experiment 4 Reporting the Activity Date of This ADC [5]
Patients Enrolled
The trial enrolled AML patients (excluding APL) with ECOG 0-1 and adequate organ function, stratifying by treatment phase (induction/consolidation/maintenance), while excluding those with prior MDS/MPN therapy or cardiopulmonary dysfunction in dose-escalation cohorts.
Administration Dosage
7+3 (Standard dose cytarabine for induction and daunorubicin) + SGN-CD33A Drug: SGN-CD33A, Given intravenously Day 1 or Days 1 and 4 of each cycle
Related Clinical Trial
NCT Number NCT02326584  Clinical Status PHASE1
Clinical Description
A Phase 1b Dose-escalation Study of SGN-CD33A in Combination With Standard-of-care for Patients With Newly Diagnosed Acute Myeloid Leukemia
Primary Endpoint
Safety assessments included adverse events, laboratory abnormalities, and dose-limiting toxicities monitored through 1 month post-treatment, establishing the preliminary safety profile of SGN-CD33A in AML patients.
Other Endpoint
Efficacy outcomes measured CR rate post-induction, leukemia-free survival, and overall survival (up to 3 years), while pharmacokinetic parameters (drug concentrations, ATA incidence) and MRD clearance rates were tracked longitudinally throughout the study duration.
Experiment 5 Reporting the Activity Date of This ADC [6]
Patients Enrolled
Inclusion criteria: Adults &ge;18 with isolated distal femur fractures requiring LISS plating, compliant with 1-year MGH follow-ups. Exclusion: Life expectancy <1 year, pre-injury non-ambulatory status, pregnancy, non-LISS implants, bone disorders, neoplasm-related fractures, severe open fractures with vascular damage, or inability to attend follow-ups.

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Related Clinical Trial
NCT Number NCT01593176  Clinical Status N.A.
Clinical Description
Radiostereometric Analysis of Fracture Healing in Distal Femur Fractures
Primary Endpoint
The study evaluates inter-fragmentary motion changes in distal femoral fractures using radiostereometric analysis at postoperative intervals (2 weeks, 6 weeks, 3/6/12 months) to assess healing dynamics.
Experiment 6 Reporting the Activity Date of This ADC [7]
Efficacy Data Incomplete Count Recovery (CRi)
26%
Patients Enrolled
Older patients with newly diagnosed acute myeloid leukemia (AML).
Administration Dosage
33A, iv, 10 mcg/kg, every 4 weeks plus azacitidine 75 mg/m2, SC or IV x 7 days, every 4 weeks or decitabine 20 mg/m2, iv x 5 days, every 4 weeks; placebo plus plus azacitidine 75 mg/m2, SC or IV x 7 days, every 4 weeks or decitabine 20 mg/m2, iv x 5 days, every 4 weeks.
Related Clinical Trial
NCT Number NCT02326584  Clinical Status Phase 1
Clinical Description
A phase 1b dose-escalation study of SGN-CD33A in combination with standard-of-care for patients with newly diagnosed acute myeloid leukemia.
Experiment 7 Reporting the Activity Date of This ADC [8]
Efficacy Data Complete Remission (CR)
66.70%
Patients Enrolled
Patients With Relapsed or Refractory AmL.
Administration Dosage
Post-allo after stem cell transplant in Day 1 of each cycle; Pre-allo in Day 1 of each cycle plus melphalan 30 mg/m2/day iv and fludarabine 140 mg/m2 iv before stem cell transplant.
Related Clinical Trial
NCT Number NCT02785900  Clinical Status Phase 3
Clinical Description
A randomized, double-blind phase 3 study of vadastuximab talirine (SGN-CD33A) versus placebo in combination with azacitidine or decitabine in the treatment of older patients with newly diagnosed acute myeloid leukemia (AML).
Experiment 8 Reporting the Activity Date of This ADC [9]
Efficacy Data Complete Remission (CR)
11.00
12.00
22.00
23.00 %
Patients Enrolled
CD33-positive AmL (any level of CD33 expression as detected by local flow cytometric assessment) and had either newly diagnosed AmL (declining intensive induction/consolidation chemotherapy) or AmL relapsed after a minimum remission duration of 12 weeks after intensive induction/consolidation.
Administration Dosage
Slow IV push on day 1 (5-60 ug/kg) or on days 1 and 4 (20 ug/kg) of 21-day cycles.
Related Clinical Trial
NCT Number NCT01902329  Clinical Status Phase 1
Clinical Description
A phase 1 trial of SGN-CD33A in patients with CD33-positive acute myeloid leukemia.
Primary Endpoint
The recommended monotherapy dose is 4.00 mg/kg.
Other Endpoint
The complete remission rate (CRc) among the 69 patients in the dose-finding cohorts, was 19.00% (6.00% CR + 13.00% CRi, 95% confidence interval [CI], 10.40-30.10).
Experiment 9 Reporting the Activity Date of This ADC [7]
Efficacy Data Complete Remission (CR)
30.00
26.00 %
Patients Enrolled
Older patients with newly diagnosed acute myeloid leukemia (AML).
Administration Dosage
33A, iv, 10 mcg/kg, every 4 weeks plus azacitidine 75 mg/m2, SC or IV x 7 days, every 4 weeks or decitabine 20 mg/m2, iv x 5 days, every 4 weeks; placebo plus plus azacitidine 75 mg/m2, SC or IV x 7 days, every 4 weeks or decitabine 20 mg/m2, iv x 5 days, every 4 weeks.
Related Clinical Trial
NCT Number NCT02326584  Clinical Status Phase 1
Clinical Description
A phase 1b dose-escalation study of SGN-CD33A in combination with standard-of-care for patients with newly diagnosed acute myeloid leukemia.
Experiment 10 Reporting the Activity Date of This ADC [10]
Efficacy Data Complete Remission (CR)
43.00
42.00
34.00
80.00
50.00
39.00 %
Patients Enrolled
New diagnosis of CD33-expressing AmL, they could not have received prior therapy with HMAs; however, prior low-intensity treatment, such as hydroxyurea for cytoreduction or other low-intensity therapies for preceding myelodysplastic syndrome (MDS), an Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1, with adequate baseline renal, hepatic, and pulmonary function.

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Administration Dosage
Azacitidine (75 mg/m2 subcutaneous/intravenous 7 days) or decitabine (20 mg/m2 intravenous 5 days) was administered per institutional standard. On the final day of HMA administration (day 7 of azacitidine treatment and day 5 of decitabine treatment), vadastuximab talirine (10 ug/kg) was administered via slow intravenous push (1-2 mL/min), after infusion of the HMA, as 28-day cycles for up to 4 cycles of treatment.

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Related Clinical Trial
NCT Number NCT01902329  Clinical Status Phase 1
Clinical Description
A phase 1 trial of SGN-CD33A in patients with CD33-positive acute myeloid leukemia.
Primary Endpoint
The 30- and 60-day mortality rates were 2% and 8%, respectively. No DLTs or infusion-related reactions were observed in the combination cohort of this study.
Other Endpoint
CR and CRi, was 70.00% (43% CR + 26% CRi, 95% CI, 55.70-81.70). Median RFS was 7.70 months (95% CI, 4.90-15.40) with 11.30 months (95% CI, 8.80-13.20) median OS.
Experiment 11 Reporting the Activity Date of This ADC [11]
Patients Enrolled
Patients with operable HER2-positive primary breast cancer.
Administration Dosage
Anthracycline then Trastuzumab Emtansine and Pertuzumab ; Anthracycline then Trastuzumab, Pertuzumab, and Taxane.
Related Clinical Trial
NCT Number NCT02614560  Clinical Status Phase 1/2
Clinical Description
A phase 1/2 study of vadastuximab talirine administered in sequence with allogeneic hematopoietic stem cell transplant in patients with relapsed or refractory acute myeloid leukemia (AML).
Experiment 12 Reporting the Activity Date of This ADC [12]
Patients Enrolled
Patients With acute myeloid leukemia (AML).
Administration Dosage
SGN-CD33A iv in Day 1 or Days 1 and 4 of each cycle; High dose cytarabine + SGN-CD33A (28-day cycles); Standard dose cytarabine and daunorubicin + SGN-CD33A; standard dose cytarabine and daunorubicin + SGN-CD33A and High dose cytarabine + SGN-CD33A.
Related Clinical Trial
NCT Number NCT01902329  Clinical Status Phase 1
Clinical Description
A phase 1 trial of SGN-CD33A in patients with CD33-positive acute myeloid leukemia.
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 [13]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 0% High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was compared with control ADC against various human cancer cell lines in vivo. The cells were treated with 100mcg/kg.
In Vitro Model Erythroleukemia HEL 92.1.7 cells (Multidrug resistance) CVCL_2481
Experiment 2 Reporting the Activity Date of This ADC [13]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 29.44% High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was compared with control ADC against various human cancer cell lines in vivo. The cells were treated with 30mcg/kg.
In Vitro Model Adult acute myeloid leukemia HL-60 cells CVCL_0002
Experiment 3 Reporting the Activity Date of This ADC [13]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 47.77% High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was compared with control ADC against various human cancer cell lines in vivo. The cells were treated with 300mcg/kg.
In Vitro Model Erythroleukemia HEL 92.1.7 cells (Multidrug resistance) CVCL_2481
Experiment 4 Reporting the Activity Date of This ADC [13]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 78.95% Negative CD33 expression (CD33-)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was compared with control ADC against various human cancer cell lines in vivo. The cells were treated with 100mcg/kg.
In Vitro Model Anaplastic thyroid cancer TF1-alpha cells (Multidrug resistance) Homo sapiens
Experiment 5 Reporting the Activity Date of This ADC [13]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 98.41% High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was compared with control ADC against various human cancer cell lines in vivo. The cells were treated with 1000mcg/kg.
In Vitro Model Erythroleukemia HEL 92.1.7 cells (Multidrug resistance) CVCL_2481
Experiment 6 Reporting the Activity Date of This ADC [13]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 98.53% Negative CD33 expression (CD33-)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was compared with control ADC against various human cancer cell lines in vivo. The cells were treated with 300mcg/kg.
In Vitro Model Anaplastic thyroid cancer TF1-alpha cells (Multidrug resistance) Homo sapiens
Experiment 7 Reporting the Activity Date of This ADC [13]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 99.99% Negative CD33 expression (CD33-)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was compared with control ADC against various human cancer cell lines in vivo. The cells were treated with 300mcg/kg.
In Vitro Model Anaplastic thyroid cancer TF1-alpha cells (Multidrug resistance) Homo sapiens
Experiment 8 Reporting the Activity Date of This ADC [13]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 99.99% High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was compared with control ADC against various human cancer cell lines in vivo. The cells were treated with 100mcg/kg.
In Vitro Model Adult acute myeloid leukemia HL-60 cells CVCL_0002
Revealed Based on the Cell Line Data
Click To Hide/Show 33 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.1 ng/mL
Moderate CD33 expression (CD33++; CD33 MFI=3,919)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG019 Homo sapiens
Experiment 2 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.1 ng/mL
Moderate CD33 expression (CD33++; 6,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Childhood acute monocytic leukemia MV4-11 cells CVCL_0064
Experiment 3 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.2 ng/mL
High CD33 expression (CD33+++; CD33 MFI=11,850)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG015 Homo sapiens
Experiment 4 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.2 ng/mL
High CD33 expression (CD33+++; CD33 MFI=10,762)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG018 Homo sapiens
Experiment 5 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.2 ng/mL
High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG023 Homo sapiens
Experiment 6 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.2 ng/mL
Moderate CD33 expression (CD33++; CD33 MFI=1,355)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG014 Homo sapiens
Experiment 7 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.2 ng/mL
High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG022 Homo sapiens
Experiment 8 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.4 ng/mL
Low CD33 expression (CD33+; CD33 MFI=107)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG003 Homo sapiens
Experiment 9 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.9 ng/mL
Moderate CD33 expression (CD33++; CD33 MFI=5,817)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG002 Homo sapiens
Experiment 10 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1 ng/mL
High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Adult acute myeloid leukemia HL-60 cells CVCL_0002
Experiment 11 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
3 ng/mL
High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Adult acute myeloid leukemia KG-1 cells CVCL_0374
Experiment 12 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5 ng/mL
Negative CD33 expression (CD33-; CD33 MFI=20)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG017 Homo sapiens
Experiment 13 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
6 ng/mL
Negative CD33 expression (CD33-; CD33 MFI=49)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG001 Homo sapiens
Experiment 14 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
6 ng/mL
High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Acute myeloid leukemia SH-1 cells CVCL_2191
Experiment 15 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
7 ng/mL
High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Childhood acute monocytic leukemia THP-1 cells CVCL_0006
Experiment 16 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
7 ng/mL
High CD33 expression (CD33+++; CD33 MFI=23,223)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Erythroleukemia HEL 92.1.7 cells CVCL_2481
Experiment 17 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 7.5 ng/mL High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Acute myeloid leukemia SIG-M5 cells CVCL_1694
Experiment 18 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
11 ng/mL
Low CD33 expression (CD33+; CD33 MFI=216)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG013 Homo sapiens
Experiment 19 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
11 ng/mL
Moderate CD33 expression (CD33++; CD33 MFI=1,035)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG008 Homo sapiens
Experiment 20 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
22 ng/mL
High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Adult acute monocytic leukemia U-937 cells CVCL_0007
Experiment 21 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
23 ng/mL
Low CD33 expression (CD33+; CD33 MFI=299)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG010 Homo sapiens
Experiment 22 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
26 ng/mL
High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Acute myeloid leukemia HNT-34 cells CVCL_2071
Experiment 23 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
32 ng/mL
Moderate CD33 expression (CD33++; CD33 MFI=1,184)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG004 Homo sapiens
Experiment 24 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
33 ng/mL
Moderate CD33 expression (CD33++; CD33 MFI=6,598)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG011 Homo sapiens
Experiment 25 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
49 ng/mL
Moderate CD33 expression (CD33++; CD33 MFI=2,278)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Anaplastic thyroid cancer TF1-alpha cells (Multidrug resistance) Homo sapiens
Experiment 26 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
61 ng/mL
Moderate CD33 expression (CD33++; 7,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Esophageal squamous cell carcinoma TF-1 cells CVCL_1759
Experiment 27 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
68 ng/mL
High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Adult acute myeloid leukemia SH-2 cells CVCL_2190
Experiment 28 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 100 ng/mL Negative CD33 expression (CD33-; CD33 MFI=0)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG009 Homo sapiens
Experiment 29 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 110 ng/mL Low CD33 expression (CD33+; CD33 MFI=353)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG012 Homo sapiens
Experiment 30 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 110 ng/mL High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in primary AmL samples in vitro.
In Vitro Model Acute myeloid leukemia Acute myeloid leukemia cells #SG020 Homo sapiens
Experiment 31 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 1000 ng/mL Low CD33 expression (CD33+; CD33 MFI=318)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Ovarian clear cell adenocarcinoma ES-2 cells CVCL_3509
Experiment 32 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 1000 ng/mL High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Burkitt lymphoma Ramos cells CVCL_0597
Experiment 33 Reporting the Activity Date of This ADC [13]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 5000 ng/mL High CD33 expression (CD33+++; 23,000 CD33 receptor copy number)
Method Description
The inhibitory activity of SGN-CD33A against cancer cell growth was evaluated in various human cancer cell lines in vitro.
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
SC-006 [Phase 1 (discontinued)]
Identified from the Human Clinical Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [14]
Efficacy Data stable disease (SD)
34%
Patients Enrolled
Eligible participants must have advanced metastatic CRC refractory to &ge;2 prior systemic therapies, ECOG 0-1, and adequate organ function. Key exclusions include prior PBD/IND-based drug exposure, autoimmune/immunodeficiency disorders, IBD history, or recent immunosuppressant use within 14 days prior to treatment. Combination therapy excludes patients with immune-mediated pneumonitis or transplant history.

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Administration Dosage
As of April 2019, 29 patients were enrolled (n=20 in part A and n=9 in part B). All patients experienced at least one treatment-emergent adverse event (TEAE). Two patients (7%) had dose-limiting toxicities of grade 4 thrombocytopenia. All 29 patients discontinued from the study, with study drug being discontinued for 76% of patients due to progressive disease. One death occurred in part A due to gastrointestinal hemorrhage with possible relation to SC-006. Serious TEAEs occurred in 8 patients (28%); these included thrombocytopenia and malignant neoplasm progression in 2 patients (7%) each.

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Related Clinical Trial
NCT Number NCT03035279  Clinical Status PHASE1
Clinical Description
An Open Label Phase 1 Study of SC-006 as a Single Agent and in Combination With ABBV-181 in Subjects With Advanced Colorectal Cancer
Primary Endpoint
Safety assessment focuses on dose-limiting toxicities (DLTs) graded per NCI CTCAE v4.03 during the initial 21-day treatment cycle.
Other Endpoint
Efficacy endpoints include overall survival (OS) and progression-free survival (PFS) over approximately 2 years, along with pharmacokinetic parameters (Tmax, AUC, T1/2, Cmax, Ctrough) of SC-006 evaluated over 1 year. Tumor response is measured via objective response rate (ORR), clinical benefit rate (CBR), and duration of response (DOR) using RECIST v1.1 criteria.

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Experiment 2 Reporting the Activity Date of This ADC [14]
Efficacy Data progressive disease (PD)
62%
Patients Enrolled
Eligible participants must have advanced metastatic CRC refractory to &ge;2 prior systemic therapies, ECOG 0-1, and adequate organ function. Key exclusions include prior PBD/IND-based drug exposure, autoimmune/immunodeficiency disorders, IBD history, or recent immunosuppressant use within 14 days prior to treatment. Combination therapy excludes patients with immune-mediated pneumonitis or transplant history.

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Administration Dosage
As of April 2019, 29 patients were enrolled (n=20 in part A and n=9 in part B). All patients experienced at least one treatment-emergent adverse event (TEAE). Two patients (7%) had dose-limiting toxicities of grade 4 thrombocytopenia. All 29 patients discontinued from the study, with study drug being discontinued for 76% of patients due to progressive disease. One death occurred in part A due to gastrointestinal hemorrhage with possible relation to SC-006. Serious TEAEs occurred in 8 patients (28%); these included thrombocytopenia and malignant neoplasm progression in 2 patients (7%) each.

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Related Clinical Trial
NCT Number NCT03035279  Clinical Status PHASE1
Clinical Description
An Open Label Phase 1 Study of SC-006 as a Single Agent and in Combination With ABBV-181 in Subjects With Advanced Colorectal Cancer
Primary Endpoint
Safety assessment focuses on dose-limiting toxicities (DLTs) graded per NCI CTCAE v4.03 during the initial 21-day treatment cycle.
Other Endpoint
Efficacy endpoints include overall survival (OS) and progression-free survival (PFS) over approximately 2 years, along with pharmacokinetic parameters (Tmax, AUC, T1/2, Cmax, Ctrough) of SC-006 evaluated over 1 year. Tumor response is measured via objective response rate (ORR), clinical benefit rate (CBR), and duration of response (DOR) using RECIST v1.1 criteria.

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Experiment 3 Reporting the Activity Date of This ADC [20]
Efficacy Data Objective Response Rate (ORR)
0%
Patients Enrolled
Patients with advanced metastatic or unresectable colorectal cancer.
Administration Dosage
SC-006-monotherapy, 2 to 12 ug/kg IV every 3 weeks.
Related Clinical Trial
NCT Number NCT03035279  Clinical Status Phase 1
Clinical Description
An open label phase 1 study of SC-006 as a single agent and in combination with ABBV-181 in subjects with advanced colorectal cancer.
SGN-CD123A [Phase 1 (discontinued)]
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 [15]
Patients Enrolled
Eligibility requires CD123-positive AML patients with 1-3 prior regimens (high-risk cases may qualify after 1 regimen), adequate organ function and ECOG 0-1, excluding those with CNS involvement, promyelocytic leukemia, significant pulmonary dysfunction, recent transplants, or recent antileukemia/experimental treatments within 4 weeks (hydroxyurea/6-MP allowed).

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Administration Dosage
Intravenous infusion in 3-week cycles
Related Clinical Trial
NCT Number NCT02848248  Clinical Status PHASE1
Clinical Description
A Phase 1 Study of SGN-CD123A in Patients With Relapsed or Refractory Acute Myeloid Leukemia (AML)
Primary Endpoint
The primary safety endpoints assess adverse event profiles (type/incidence/severity/seriousness/relatedness) and lab abnormalities during treatment and 1-month post-treatment, along with dose-limiting toxicity incidence during the initial 3-week cycle.
Other Endpoint
Secondary objectives include pharmacokinetic analysis (SGN-CD123A blood concentrations), immunogenicity (antitherapeutic antibodies), and efficacy measures (remission rate, complete remission duration, leukemia-free survival, and overall survival) monitored for approximately 1 year in relapsed/refractory AML patients.
SGN-CD19B [Phase 1 (discontinued)]
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 [16]
Patients Enrolled
Eligibility requires measurable disease after &ge;2 prior systemic therapies with ECOG 0-1 and adequate organ function, excluding patients with prior CD19-targeted therapy (unless CD19+ confirmed), active infections, allogeneic transplants, or recent anticancer treatments within 4 weeks (2 weeks if progressive disease).
Administration Dosage
Given intravenously Day 1 of 28-day or 42-day cycles
Related Clinical Trial
NCT Number NCT02702141  Clinical Status PHASE1
Clinical Description
A Phase 1, Open-label, Dose-escalation Study of SGN-CD19B in Patients With Relapsed or Refractory Aggressive B-cell Non-Hodgkin Lymphoma
Primary Endpoint
The primary endpoints evaluate safety profiles including adverse event incidence and laboratory abnormalities monitored through 1 month post-treatment in relapsed/refractory patients.
Other Endpoint
Secondary objectives assess pharmacokinetics (SGN-CD19B blood concentrations for 3 weeks), immunogenicity (antitherapeutic antibodies), and efficacy measures (objective response rate, progression-free survival up to 3 years) in this heavily pretreated population.
Serclutamab talirine [Phase 1 (discontinued)]
Identified from the Human Clinical Data
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [17]
Patients Enrolled
Eligibility requires ECOG 0-1 patients with progressive EGFR+ tumors (GBM/CRC/HNSCC/NSCLC/others) refractory to prior therapies (&le;3 cytotoxic lines), measurable disease, and &ge;12-week life expectancy, excluding those with uncontrolled CNS metastases, cardiac dysfunction (NYHA III-IV/EF<40%), active infections (CTCAE&ge;G3), recent major surgery (21 days), or significant effusions/keratitis. Washout periods apply for prior therapies (21 days for most, 5 half-lives for targeted agents).

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Administration Dosage
ABBV-321 will be administered via intravenous infusion at escalating dose levels until the maximum tolerated dose is reached and a recommended Phase 2 dose is determined.
Related Clinical Trial
NCT Number NCT03234712  Clinical Status PHASE1
Clinical Description
A Phase 1 Study Evaluating the Safety, Pharmacokinetics, and Anti-tumor Activity of ABBV-321 in Subjects With Advanced Solid Tumors Associated With Overexpression of the Epidermal Growth Factor Receptor (EGFR)
Primary Endpoint
The primary pharmacokinetic endpoints evaluate ABBV-321 exposure (AUCt, AUC), peak concentration (Cmax), time to peak (Tmax), elimination characteristics (beta, t1/2) over 78 days, along with dose-escalation outcomes (MTD, RPTD) during the first 28-day cycle in EGFR-overexpressing solid tumor patients.
Other Endpoint
Secondary efficacy measures assess long-term outcomes (PFS, DOR, DCR, TTP, OS up to 5 years) using RECIST 1.1/RANO criteria, QTcF interval changes through 61 days, and ORR in both solid tumors and glioblastoma populations.
Experiment 2 Reporting the Activity Date of This ADC [19]
Efficacy Data Partial Response (PR)
4.17%
High EGFR expression (EGFR+++)
Patients Enrolled
Advanced, histologically confirmed solid tumors associated with EGFR overexpression (centralized testing).
Administration Dosage
Ser-T intravenously once every 4 weeks (Q4W; 5-50 ug/kg) in the dose-escalation phase.
Related Clinical Trial
NCT Number NCT03234712  Clinical Status Phase 1
Clinical Description
A phase 1 study evaluating the safety, pharmacokinetics, and anti-tumor activity of ABBV-321 in subjects with advanced solid tumors associated with overexpression of the epidermal growth factor receptor (EGFR).
Primary Endpoint
One patient was PR (N=1/24, 4.17%), 6 patients was SD (N=6/24,25.00%). Median DOR (CR + PR + SD)=6.40 months (95% CI 3.0not reached). The median PFS=1.8 months (95% CI 1.3-5.8), median OS=7.10 months (95% CI: 4.1-12.3).
Other Endpoint
Ser-T RP2D regimen=25 ug/kg Q4W.
Experiment 3 Reporting the Activity Date of This ADC [19]
Efficacy Data Partial Response (PR)
4.20%
High EGFR expression (EGFR+++)
Patients Enrolled
Advanced, histologically confirmed solid tumors associated with EGFR overexpression (centralized testing).
Administration Dosage
Ser-T intravenously once every 4 weeks (Q4W; 5-50 ug/kg) in the dose-escalation phase.
Related Clinical Trial
NCT Number NCT03234712  Clinical Status Phase 1
Clinical Description
A phase 1 study evaluating the safety, pharmacokinetics, and anti-tumor activity of ABBV-321 in subjects with advanced solid tumors associated with overexpression of the epidermal growth factor receptor (EGFR).
Primary Endpoint
Responses included 1 partial response (PR), 6 stable disease (SD), 14 progressive disease (PD); 3 patients were not evaluable for response. Median duration of clinical benefit (complete response + PR + SD) was 6.40 months (95% CI: 3.00-not reached).
Other Endpoint
The median PFS was 1.80 months (95% CI: 1.30-5.80) and the median OS was 7.10 months (95% CI: 4.10-12.30).
Experiment 4 Reporting the Activity Date of This ADC [22]
Related Clinical Trial
NCT Number NCT03234712  Clinical Status Phase 1
Clinical Description
A phase 1 study evaluating the safety, pharmacokinetics, and anti-tumor activity of ABBV-321 in subjects with advanced solid tumors associated with overexpression of the epidermal growth factor receptor (EGFR).
Discovered Using Patient-derived Xenograft Model
Click To Hide/Show 10 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 34% High EGFR expression (EGFR+++)
Method Description
ABBV-321 induces efficient tumor cell killing in cell line-derived models of SNO199 and U87NG cells with mAb806 expression with high expression.
In Vivo Model Glioblastoma PDX model (PDX: SNO199)
Experiment 2 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 40% Low EGFR expression (EGFR+)
Method Description
ABBV-321 induces efficient tumor cell killing in cell line-derived models of SNO199 and U87NG cells with mAb806 expression with high expression.
In Vivo Model Glioblastoma PDX model (PDX: SNO199)
Experiment 3 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 76% High EGFR expression (EGFR+++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of head and neck cancer cell with EGFR expression,demonstrated with ABBV-321 dosed at 0.15 mg/kg 2 every seven days 3.
In Vivo Model EGFR-expressing malignant mesothelioma PDX model (PDX: 1174)
Experiment 4 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 88.57% Moderate EGFR expression (EGFR++)
Method Description
ABBV-321 induces efficient tumor cell killing in cell line-derived models of SNO199 and U87NG cells with mAb806 expression with high expression.
In Vivo Model Glioblastoma PDX model (PDX: SNO207)
Experiment 5 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 90.20% Moderate EGFR expression (EGFR++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of brain cancer cell with EGFR expression,dosed 0.2 mg/kg,every seven days 3.
In Vivo Model EGFR-expressing GBM brain cancer PDX model (PDX: SNO199)
Experiment 6 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 91.60% Moderate EGFR expression (EGFR++)
Method Description
ABBV-321 induces efficient tumor cell killing in cell line-derived models of SNO199 and U87NG cells with mAb806 expression with high expression.
In Vivo Model Glioblastoma PDX model (PDX: SNO207)
Experiment 7 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 93.70% High EGFR expression (EGFR+++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of brain cancer cell with EGFR expression,dosed 0.2 mg/kg,every seven days 3.
In Vivo Model EGFR-expressing GBM brain cancer PDX model (PDX: SNO207)
Experiment 8 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 93.80% High EGFR expression (EGFR+++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of head and neck cancer cell with EGFR expression, administered at 0.5 mg/kg on a Q7D 6 regimen.
In Vivo Model EGFR-expressing colorectal adenocarcinoma PDX model (PDX: LoVo)
Experiment 9 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 96.40% Moderate EGFR expression (EGFR++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of brain cancer cell with EGFR expression,dosed 0.4 mg/kg,every seven days 3.
In Vivo Model EGFR-expressing GBM brain cancer PDX model (PDX: SNO207)
Experiment 10 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 97.20% High EGFR expression (EGFR+++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of brain cancer cell with EGFR expression,dosed 0.4 mg/kg,every seven days 3.
In Vivo Model EGFR-expressing GBM brain cancer PDX model (PDX: SNO199)
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 16 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 52.40% Moderate EGFR expression (EGFR++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of head and neck cancer cell with EGFR expression,a single dose of 0.0125 mg/kg.
In Vivo Model EGFR-expressing SW48 CDX model
In Vitro Model Colon adenocarcinoma SW48 cells CVCL_1724
Experiment 2 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 55.30% Low EGFR expression (EGFR+)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of lung squamous cell carcinoma cell with EGFR expression,a single dose of 0.1 mg/kg.
In Vivo Model EGFR-expressing EBC-1 CDX model
In Vitro Model Lung squamous cell carcinoma EBC-1 cells CVCL_2891
Experiment 3 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 70.60% High EGFR expression (EGFR+++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of head and neck cancer cell with EGFR expression,a single dose of 0.025 mg/kg.
In Vivo Model EGFR-expressing SW48 CDX model
In Vitro Model Colon adenocarcinoma SW48 cells CVCL_1724
Experiment 4 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 73.80% High EGFR expression (EGFR+++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of head and neck cancer cell with EGFR expression,a single dose of 0.1 mg/kg.
In Vivo Model EGFR-expressing A-253 CDX model
In Vitro Model Submandibular gland squamous cell carcinoma A-253 cells CVCL_1060
Experiment 5 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 81.10% Moderate EGFR expression (EGFR++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of head and neck cancer cell with EGFR expression,a single dose of 0.3 mg/kg.
In Vivo Model EGFR-expressing A-253 CDX model
In Vitro Model Submandibular gland squamous cell carcinoma A-253 cells CVCL_1060
Experiment 6 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 82.80% Moderate EGFR expression (EGFR++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of head and neck cancer cell with EGFR expression,a single dose of 0.1 mg/kg.
In Vivo Model EGFR-expressing SW48 CDX model
In Vitro Model Colon adenocarcinoma SW48 cells CVCL_1724
Experiment 7 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 82.80% High EGFR expression (EGFR+++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of head and neck cancer cell with EGFR expression,a single dose of 0.05 mg/kg.
In Vivo Model EGFR-expressing SW48 CDX model
In Vitro Model Colon adenocarcinoma SW48 cells CVCL_1724
Experiment 8 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 83.10% Moderate EGFR expression (EGFR++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of head and neck cancer cell with EGFR expression,a single dose of 0.1 mg/kg.
In Vivo Model EGFR-expressing FaDu CDX model
In Vitro Model Hypopharyngeal squamous cell carcinoma FaDu cells CVCL_1218
Experiment 9 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 89.90% Low EGFR expression (EGFR+)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of head and neck cancer cell with EGFR expression,administered 0.4 mg/kg,at every seven days 3.
In Vivo Model EGFR-expressing HCT 116 CDX model
In Vitro Model Colon carcinoma HCT 116 cells CVCL_0291
Experiment 10 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 89.90% High EGFR expression (EGFR+++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of head and neck cancer cell with EGFR expression,a single dose of 0.1 mg/kg.
In Vivo Model EGFR-expressing HCT 116 CDX model
In Vitro Model Colon carcinoma HCT 116 cells CVCL_0291
Experiment 11 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 91.80% Negative EGFR expression (EGFR-)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of head and neck cancer cell with EGFR expression,a single dose of 0.3 mg/kg.
In Vivo Model EGFR-expressing FaDu CDX model
In Vitro Model Hypopharyngeal squamous cell carcinoma FaDu cells CVCL_1218
Experiment 12 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100% High EGFR expression (EGFR+++)
Method Description
ABBV-321 induces efficient tumor cell killing in cell line-derived models of SNO199 and U87NG cells with mAb806 expression with high expression.
In Vivo Model Glioblastoma U-87MG CDX model
In Vitro Model Glioblastoma U-87MG ATCC cells CVCL_0022
Experiment 13 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100% Low EGFR expression (EGFR+)
Method Description
ABBV-321 induces efficient tumor cell killing in cell line-derived models of SNO199 and U87NG cells with mAb806 expression with high expression.
In Vivo Model Glioblastoma U-87MG CDX model
In Vitro Model Glioblastoma U-87MG ATCC cells CVCL_0022
Experiment 14 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100% Low EGFR expression (EGFR+)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of lung squamous cell carcinoma cell with EGFR expression,a single dose of 0.3 mg/kg.
In Vivo Model EGFR-expressing EBC-1 CDX model
In Vitro Model Lung squamous cell carcinoma EBC-1 cells CVCL_2891
Experiment 15 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100% High EGFR expression (EGFR+++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of brain cancer cell with EGFR expression,dosed 0.4 mg/kg,every seven days 3.
In Vivo Model EGFR-expressing U-87MG CDX model
In Vitro Model Glioblastoma U-87MG ATCC cells CVCL_0022
Experiment 16 Reporting the Activity Date of This ADC [23]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100% High EGFR expression (EGFR+++)
Method Description
Serclutamab talirine induces efficient tumor cell killing in PDX models of brain cancer cell with EGFR expression,dosed 0.2 mg/kg,every seven days 3.
In Vivo Model EGFR-expressing U-87MG CDX model
In Vitro Model Glioblastoma U-87MG ATCC cells CVCL_0022
Revealed Based on the Cell Line Data
Click To Hide/Show 38 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
15 pM
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma SW48 cells CVCL_1724
Experiment 2 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.23 nM
Negative EGFR expression (EGFR-)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Glioblastoma U-87 MGvIII cells CVCL_0022
Experiment 3 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.7 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma LoVo cells CVCL_0399
Experiment 4 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.7 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Astrocytoma U-251MG cells CVCL_0021
Experiment 5 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1 nM
Moderate EGFR expression (EGFR++; IHC 2+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma LS174T cells CVCL_1384
Experiment 6 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.1 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma SK-CO-1 cells CVCL_0626
Experiment 7 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.4 nM
Negative EGFR expression (EGFR-)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Astrocytoma SF268 cells CVCL_1689
Experiment 8 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.5 nM
Moderate EGFR expression (EGFR++)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon cancer HT29 cells CVCL_A8EZ
Experiment 9 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.5 nM
Low EGFR expression (EGFR+; IHC 1+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Glioblastoma M059K cells CVCL_0401
Experiment 10 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.8 nM
Moderate EGFR expression (EGFR++; IHC 2+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma SW403 cells CVCL_0545
Experiment 11 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1.9 nM
High EGFR expression (EGFR+++)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Primitive neuroectodermal tumor PFSK-1 cells CVCL_1642
Experiment 12 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.5 nM
High EGFR expression (EGFR+++)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Gliosarcoma SF539 cells CVCL_1691
Experiment 13 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.6 nM
Moderate EGFR expression (EGFR++)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma COLO 201 cells CVCL_1987
Experiment 14 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.8 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Glioblastoma M059J cells CVCL_0400
Experiment 15 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
3.3 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma COLO 205 cells CVCL_0218
Experiment 16 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
3.7 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Astrocytoma SNB-19 cells CVCL_0535
Experiment 17 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.3 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma SW620 cells CVCL_0547
Experiment 18 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.6 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma SW1116 cells CVCL_0544
Experiment 19 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.6 nM
Low EGFR expression (EGFR+; IHC 1+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Glioblastoma U-87MG cells CVCL_0022
Experiment 20 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.7 nM
Low EGFR expression (EGFR+; IHC 1+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon carcinoma RKO cells CVCL_0504
Experiment 21 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.8 nM
Moderate EGFR expression (EGFR++)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Rectal adenocarcinoma SW1463 cells CVCL_1718
Experiment 22 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4.8 nM
Negative EGFR expression (EGFR-)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Anaplastic astrocytoma CHLA-03-AA cells CVCL_U616
Experiment 23 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.5 nM
Moderate EGFR expression (EGFR++)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma WiDr cells CVCL_2760
Experiment 24 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
8 nM
Moderate EGFR expression (EGFR++; IHC 2+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma SW480 cells CVCL_0546
Experiment 25 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
8.4 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Glioblastoma LN-18 cells CVCL_0392
Experiment 26 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
9 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma DLD-1 cells CVCL_0248
Experiment 27 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
9.5 nM
Moderate EGFR expression (EGFR++; IHC 2+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Cecum adenocarcinoma LS1034 cells CVCL_1382
Experiment 28 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
10.6 nM
Negative EGFR expression (EGFR-)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Glioblastoma SNB-75 cells CVCL_1706
Experiment 29 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
11.8 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma T84 cells CVCL_0555
Experiment 30 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
12 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon carcinoma HCT 116 cells CVCL_0291
Experiment 31 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
13.9 nM
Low EGFR expression (EGFR+; IHC 1+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma Caco-2 cells CVCL_0025
Experiment 32 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
14.5 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Glioblastoma T98G cells CVCL_0556
Experiment 33 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
16.1 nM
Low EGFR expression (EGFR+; IHC 1+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Astrocytoma U-138MG cells CVCL_0020
Experiment 34 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
17.6 nM
Low EGFR expression (EGFR+; IHC 1+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma COLO 320DM cells CVCL_0219
Experiment 35 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
18 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Anaplastic astrocytoma DBTRG-05MG cells CVCL_1169
Experiment 36 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
23.2 nM
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Glioblastoma A-172 cells CVCL_0131
Experiment 37 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
24.9 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma COLO 320HSR cells CVCL_0220
Experiment 38 Reporting the Activity Date of This ADC [23]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
28.4 nM
High EGFR expression (EGFR+++; IHC 3+)
Method Description
The inhibitory activity of serclutamab talirine against cancer cell growth was compared with ABBV-221 against various human cancer cell lines in vitro. The cells were treated with serclutamab talirine and ABBV-221.
In Vitro Model Colon adenocarcinoma HCT 15 cells CVCL_0292
Rolinsatamab talirine [Phase 1 (discontinued)]
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 [18]
Patients Enrolled
Eligibility requires ECOG 0-1 patients with PRLR+ advanced tumors (breast/colorectal/adrenocortical/chromophobe RCC in escalation; breast cancer in expansion) refractory to &le;4 cytotoxic lines, excluding prior PBD agents, uncontrolled comorbidities, significant immunotherapy reactions, active gallbladder disease, major liver resection, or ongoing CTCAE >G1 toxicities, with 21-day washout for most prior therapies (14 days for targeted agents).

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Administration Dosage
ABBV-176 will be administered via intravenous infusion at escalating dose levels until the maximum tolerated dose is reached.
Related Clinical Trial
NCT Number NCT03145909  Clinical Status PHASE1
Clinical Description
A Phase 1 Study Evaluating the Safety, Pharmacokinetics and Anti-Tumor Activity of ABBV-176 in Subjects With Advanced Solid Tumors Likely to Express Prolactin Receptor (PRLR)
Primary Endpoint
The dose escalation phase evaluates ABBV-176 pharmacokinetics over 57 days and establishes safety parameters (MTD/RPTD) during the first 21-day cycle in PRLR-expressing solid tumors, with expanded cohort assessing ORR per RECIST 1.1 over 2 years.
Other Endpoint
Secondary endpoints include PK monitoring (AUCt, Cmax, Tmax) over 15 days and long-term efficacy outcomes (PFS, DOR, OS up to 2 years) in expanded cohort, alongside ECOG status changes and cardiac safety (QTcF changes over 47 days) in dose escalation phase.
Experiment 2 Reporting the Activity Date of This ADC [21]
Efficacy Data Objective Response Rate (ORR)
0%
Patients Enrolled
Locally advanced or metastatic solid tumor types associated with PRLR expression, including breast cancer, colorectal cancer, and adrenocortical carcinoma. Patients had progressed on prior treatment, were not amenable to treatment with curative intent, and had no other therapy options known to provide clinical benefit, or were ineligible for such therapies. Patients had an Eastern Cooperative Oncology Group performance status of 0 or 1, and adequate bone marrow, renal, and hepatic function.

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Administration Dosage
Initial dose was 2.70 ug/kg, dose increment was capped at a 100% increase, or at a 50% increase if a grade2 drug-related toxicity had been observed, intravenously every 21 days.
Related Clinical Trial
NCT Number NCT03145909  Clinical Status Phase 1
Clinical Description
A phase 1 study evaluating the safety, pharmacokinetics and anti-tumor activity of ABBV-176 in subjects with advanced solid tumors likely to express prolactin receptor (PRLR).
Primary Endpoint
MtD was not formally determined, as identification of a tolerable dose was confounded by late-onset toxicities. ABBV-176 was associated with significant toxicity in this phase 1, dose-escalation study.
Other Endpoint
No patient had an objective response.
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 [24]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 90.50%
Method Description
Mice implanted with BT-474 breast cancer model and dosed with a single dose of ABBV-176 at 0.5 mg/kg.
In Vivo Model BT-474 CDX
In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Experiment 2 Reporting the Activity Date of This ADC [24]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100%
Method Description
Mice implanted with BT-474 breast cancer model and dosed with a single dose of ABBV-176 at 0.1 mg/kg.
In Vivo Model BT-474 CDX
In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Experiment 3 Reporting the Activity Date of This ADC [24]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100%
Method Description
Mice implanted with BT-474 breast cancer model and dosed with a single dose of ABBV-176 at 0.3 mg/kg.
In Vivo Model BT-474 CDX
In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Revealed Based on the Cell Line Data
Click To Hide/Show 14 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.5 pM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Invasive breast carcinoma T-47D cells CVCL_0553
Experiment 2 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.01 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Prostate carcinoma 22RV1 cells CVCL_1045
Experiment 3 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.01 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Breast adenocarcinoma CAMA-1 cells CVCL_1115
Experiment 4 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.11 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Colon adenocarcinoma SW403 cells CVCL_0545
Experiment 5 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.16 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Ovarian clear cell adenocarcinoma SMOV-2 cells CVCL_S920
Experiment 6 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.24 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Experiment 7 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.26 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 8 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.32 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Invasive breast carcinoma MCF-7 cells CVCL_0031
Experiment 9 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.6 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Endometrial adenocarcinoma AN3-CA cells CVCL_0028
Experiment 10 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.77 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Experiment 11 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.2 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Adult hepatocellular carcinoma Huh-7 cells CVCL_0336
Experiment 12 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
8.6 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Hepatoblastoma Hep-G2 cells CVCL_0027
Experiment 13 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 22 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Experiment 14 Reporting the Activity Date of This ADC [24]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 22 nM
Method Description
The inhibitory activity of ABBV-176 against cancer cell growth was evaluated in various human cancer cell lines in vitro. The cells were treated 144 hours.
In Vitro Model Invasive breast carcinoma of no special type UACC-812 cells CVCL_1781
ABBV-322 [Investigative]
Discovered Using Patient-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [25]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 34.60% Positive EGFR expression (EGFR+++/++)
Method Description
For the PDX 14R091 and PDX MPM36 studies, mice received ABBV-322 (0.03 mg/kg) or control ADC (0.03 mg/kg) every 4 days, for a total of 12 treatments.
In Vivo Model Malignant Mesothelioma PDX model (PDX: MPM36)
Experiment 2 Reporting the Activity Date of This ADC [25]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 65.80% Positive EGFR expression (EGFR+++/++)
Method Description
For the PDX 14R091 and PDX MPM36 studies, mice received ABBV-322 (0.03 mg/kg) or control ADC (0.03 mg/kg) every 4 days, for a total of 12 treatments.
In Vivo Model Malignant Mesothelioma PDX model (PDX: 14R091)
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 [25]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
10.00 - 35.00 ug/mL
Positive EGFR expression (EGFR+++/++)
Method Description
Cells lines were plated at 1,000-3,000 cells per well in complete growth medium containing 10% FCS in 96-well plates and allowed to adhere overnight.
In Vitro Model Pleural mesothelioma NCI-H2052 cells CVCL_1518
Experiment 2 Reporting the Activity Date of This ADC [25]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
10.00 - 35.00 ug/mL
Positive EGFR expression (EGFR+++/++)
Method Description
Cells lines were plated at 1,000-3,000 cells per well in complete growth medium containing 10% FCS in 96-well plates and allowed to adhere overnight.
In Vitro Model Pleural mesothelioma NCI-H2052 cells CVCL_1518
Experiment 3 Reporting the Activity Date of This ADC [25]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
10.00 - 35.00 ug/mL
Positive EGFR expression (EGFR+++/++)
Method Description
Cells lines were plated at 1,000-3,000 cells per well in complete growth medium containing 10% FCS in 96-well plates and allowed to adhere overnight.
In Vitro Model Pleural mesothelioma NCI-H28 cells CVCL_1555
Experiment 4 Reporting the Activity Date of This ADC [25]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
10.00 - 35.00 ug/mL
Positive EGFR expression (EGFR+++/++)
Method Description
Cells lines were plated at 1,000-3,000 cells per well in complete growth medium containing 10% FCS in 96-well plates and allowed to adhere overnight.
In Vitro Model Pleural biphasic mesothelioma MSTO-211H cells CVCL_1430
ABT-700 (S238C)-PBD [Investigative]
Discovered Using Patient-derived Xenograft Model
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [26]
Efficacy Data Tumor Growth Inhibition value (TGI)
70.68%
Low MET expression (MET+; IHC 1+)
Method Description
Tumor fragments of 3 to 5 mm at passage 3 were implanted subcutaneously in the right rear flank of NSG mice with a trochar. ABT-700 PBD was administered 0.3 mg/kg every seven days for a total of six doses.
In Vivo Model Non-small cell lung cancer PDX model (PDX: CTG-0363)
Experiment 2 Reporting the Activity Date of This ADC [26]
Efficacy Data Tumor Growth Inhibition value (TGI)
75.79%
High MET expression (MET+++; IHC 3+)
Method Description
Tumor fragments of 3 to 5 mm at passage 3 were implanted subcutaneously in the right rear flank of NSG mice with a trochar. ABT-700 PBD was administered 0.3 mg/kg every seven days for a total of six doses.
In Vivo Model Non-small cell lung cancer PDX model (PDX: CTG-0170)
Experiment 3 Reporting the Activity Date of This ADC [26]
Efficacy Data Tumor Growth Inhibition value (TGI)
88.94%
Moderate MET expression (MET++; IHC 2+)
Method Description
Tumor fragments of 3 to 5 mm at passage 3 were implanted subcutaneously in the right rear flank of NSG mice with a trochar. ABT-700 PBD was administered 0.3 mg/kg every seven days for a total of six doses.
In Vivo Model Non-small cell lung cancer PDX model (PDX: CTG-0159)
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 [26]
Efficacy Data Tumor Growth Inhibition value (TGI)
92.94%
Positive MET expression (MET +++/++)
Method Description
Mice were randomized when the tumors reached -200 mm and dosed on day 0 with isotype or ADC at 0.3 mg/kg intraperitoneally.
In Vivo Model SW48 CDX model
In Vitro Model Colon adenocarcinoma SW48 cells CVCL_1724
Revealed Based on the Cell Line Data
Click To Hide/Show 52 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 1 pM Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Anaplastic astrocytoma DBTRG-05MG cells CVCL_1169
Experiment 2 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 1 pM Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Glioblastoma M059K cells CVCL_0401
Experiment 3 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 1 pM Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Glioblastoma M059J cells CVCL_0400
Experiment 4 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 1 pM Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Astrocytoma U-138MG cells CVCL_0020
Experiment 5 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1 pM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma LS174T cells CVCL_1384
Experiment 6 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1 pM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma SK-CO-1 cells CVCL_0626
Experiment 7 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.9 pM
Low MET expression (MET+)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma SW48 cells CVCL_1724
Experiment 8 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
3 pM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Lung squamous cell carcinoma HCC15 cells CVCL_2057
Experiment 9 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4 pM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma HT-29 cells CVCL_0320
Experiment 10 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
4 pM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma DLD-1 cells CVCL_0248
Experiment 11 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5 pM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Gliosarcoma SF264 cells Homo sapiens
Experiment 12 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5 pM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma SW620 cells CVCL_0547
Experiment 13 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5 pM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon carcinoma HCT 116 cells CVCL_0291
Experiment 14 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
6 pM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Astrocytoma SNB-19 cells CVCL_0535
Experiment 15 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
6 pM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma SW403 cells CVCL_0545
Experiment 16 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) < 7 pM Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Astrocytoma U-251MG cells CVCL_0021
Experiment 17 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
7 pM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma COLO 201 cells CVCL_1987
Experiment 18 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.01 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma WiDr cells CVCL_2760
Experiment 19 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.01 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Rectal adenocarcinoma SW1463 cells CVCL_1718
Experiment 20 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.01 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon carcinoma RKO cells CVCL_0504
Experiment 21 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.01 nM
High MET expression (MET+++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Lung papillary adenocarcinoma NCI-H441 cells CVCL_1561
Experiment 22 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.02 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma COLO 320DM cells CVCL_0219
Experiment 23 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.02 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma COLO 205 cells CVCL_0218
Experiment 24 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.02 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Lung squamous cell carcinoma SW900 cells CVCL_1731
Experiment 25 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.02 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Lung papillary adenocarcinoma NCI-H820 cells CVCL_1592
Experiment 26 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.02 nM
Low MET expression (MET+)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Pancreatic carcinoma KP-4 cells CVCL_1338
Experiment 27 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.02 nM
Low MET expression (MET+)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Glioblastoma M059J cells CVCL_0400
Experiment 28 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.02 nM
High MET expression (MET+++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Gastric adenocarcinoma Hs 746.T cells CVCL_0333
Experiment 29 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.03 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma SW1116 cells CVCL_0544
Experiment 30 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.04 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Gliosarcoma SF539 cells CVCL_1691
Experiment 31 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.04 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma COLO 320HSR cells CVCL_0220
Experiment 32 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.04 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Cecum adenocarcinoma LS1034 cells CVCL_1382
Experiment 33 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.04 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Pleural epithelioid mesothelioma NCI-H226 cells CVCL_1544
Experiment 34 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.07 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma LoVo cells CVCL_0399
Experiment 35 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.07 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Lung adenocarcinoma NCI-H1573 cells CVCL_1478
Experiment 36 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.1 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma T84 cells CVCL_0555
Experiment 37 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.1 nM
Low MET expression (MET+)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 38 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.1 nM
Low MET expression (MET+)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Invasive breast carcinoma of no special type BT-20 cells CVCL_0178
Experiment 39 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.1 nM
High MET expression (MET+++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Lung squamous cell carcinoma EBC-1 cells CVCL_2891
Experiment 40 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.17 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Lung squamous cell carcinoma SK-MES-1 cells CVCL_0630
Experiment 41 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.2 nM
Low MET expression (MET+)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Astrocytoma U-118MG cells CVCL_0633
Experiment 42 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.21 nM
Low MET expression (MET+)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Glioblastoma U-87MG cells CVCL_0022
Experiment 43 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.4 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Lung adenocarcinoma NCI-H1650 cells CVCL_1483
Experiment 44 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.7 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Lung squamous cell carcinoma NCI-H1703 cells CVCL_1490
Experiment 45 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.97 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Anaplastic astrocytoma CHLA-03-AA cells CVCL_U616
Experiment 46 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.45 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Primitive neuroectodermal tumor PFSK-1 cells CVCL_1642
Experiment 47 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
26 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma SW480 cells CVCL_0546
Experiment 48 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
28.2 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Glioblastoma SNB-75 cells CVCL_1706
Experiment 49 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 67 nM Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Glioblastoma A-172 cells CVCL_0131
Experiment 50 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 67 nM Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma HCT 15 cells CVCL_0292
Experiment 51 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 67 nM Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Colon adenocarcinoma Caco-2 cells CVCL_0025
Experiment 52 Reporting the Activity Date of This ADC [26]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
141 nM
Positive MET expression (MET +++/++)
Method Description
Cancer cell lines were incubated with compounds for 72 h. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Glioblastoma T98G cells CVCL_0556
HuM25-S239C-PBD-E2 [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 [27]
Efficacy Data Tumor Growth Inhibition value (TGI)
60.13%
High LRRC15 expression (LRRC15+++; IHC 3+)
Method Description
EBC-1 squamous NSCLC cells (5 million) were implanted subcutaneously into SCID mice, and micewere randomized when the tumors reached 175 mm and dosed with ADC or isotype antibody at 0.6 mg/kg intraperitoneally on day 0.
In Vivo Model EBC-1 CDX model
In Vitro Model Lung squamous cell carcinoma EBC-1 cells CVCL_2891
Experiment 2 Reporting the Activity Date of This ADC [27]
Efficacy Data Tumor Growth Inhibition value (TGI)
73.58%
High LRRC15 expression (LRRC15+++; IHC 3+)
Method Description
NCI-H1650 NSCLC cancer cells (5 million) were implanted subcutaneously into SCID/Beigemice. and mice were randomized when the tumors reached -200 mm and dosed on day 0 with isotype orADC at 0.1 mg/kg intraperitoneally.
In Vivo Model NCI-H1650 CDX model
In Vitro Model Lung adenocarcinoma NCI-H1650 cells CVCL_1483
Experiment 3 Reporting the Activity Date of This ADC [27]
Efficacy Data Tumor Growth Inhibition value (TGI)
92.33%
High LRRC15 expression (LRRC15+++; IHC 3+)
Method Description
NCI-H1650 NSCLC cancer cells (5 million) were implanted subcutaneously into SCID/Beigemice. and mice were randomized when the tumors reached -200 mm and dosed on day 0 with isotype orADC at 0.3 mg/kg intraperitoneally.
In Vivo Model NCI-H1650 CDX model
In Vitro Model Lung adenocarcinoma NCI-H1650 cells CVCL_1483
Experiment 4 Reporting the Activity Date of This ADC [27]
Efficacy Data Tumor Growth Inhibition value (TGI)
94.51%
High LRRC15 expression (LRRC15+++; IHC 3+)
Method Description
NCI-H1650 NSCLC cancer cells (5 million) were implanted subcutaneously into SCID/Beigemice. and mice were randomized when the tumors reached -200 mm and dosed on day 0 with isotype orADC at 6 mg/kg intraperitoneally.
In Vivo Model NCI-H1650 CDX model
In Vitro Model Lung adenocarcinoma NCI-H1650 cells CVCL_1483
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 [27]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
1 pM
Positive LRRC15 expression (LRRC15 +++/++)
Method Description
In vitro cell killing in LRRC15 transfected 3T12 cells by isotype-S239C-PBD-E2 or huM25-S239CPBD-E2. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Squamous non-small cell lung cancer BALB/3T12-3 cells (huLRRC15 transfection) CVCL_0637
Experiment 2 Reporting the Activity Date of This ADC [27]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
10.00 - 100.00 nM
Positive LRRC15 expression (LRRC15 +++/++)
Method Description
In vitro cell killing in A549 cells that have undergone epithelial tomesenchymal transition (EMT) in the presence of 10 ng/mL TGFB by isotype-S239C-PBD-E2huM25-S239C-PBD-E2, or huM25-S239C antibody.
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
Experiment 3 Reporting the Activity Date of This ADC [27]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
10.00 - 100.00 nM
Positive LRRC15 expression (LRRC15 +++/++)
Method Description
In vitro cell killing in A549 lung cancer cells in the presence of 10 ng/mL TGFB by isotype-S239C-PBD-E2huM25-S239C-PBD-E2, or huM25-S239C antibody.
In Vitro Model Lung adenocarcinoma A-549 cells CVCL_0023
B7H3-EC3 DAR4.1 [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 [28]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 90.90% High CD276 expression (CD276+++)
Method Description
The in vivo antitumor efficacy and tolerability of the selected NAMPTi-ADCs were evaluated in the cell line-derived THP-1 human AmL xenograft model.Treatment with the low-DAR B7H3-EC3 (5 mg/kg,iv,Q7Dx3).
In Vivo Model Monocytic leukemia CDX model
In Vitro Model Childhood acute monocytic leukemia THP-1 cells CVCL_0006
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 [28]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.04 nM
High LYPD3 expression (LYPD3+++); High HER2 expression (HER2+++)
Method Description
The in vitro potency of NAMPTi-SMOLs and NAMPTi-ADCs was determined in human tumor cell lines. Cells (2000-4000 cells/well, were incubated at 37°C, 5% CO2 for 24 h and the compounds were added at concentrations of 3x10-12 - 3x10-8 Min triplicates. Cell viability was determined at the beginning (day 0) and after 72-96 h incubation in the presence or absence of NAMPTi-SMOLs or NAMPTi-ADCs.

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In Vitro Model Childhood acute monocytic leukemia THP-1 cells CVCL_0006
Experiment 2 Reporting the Activity Date of This ADC [28]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 10 uM High LYPD3 expression (LYPD3+++)
Method Description
The in vitro potency of NAMPTi-SMOLs and NAMPTi-ADCs was determined in human tumor cell lines. Cells (2000-4000 cells/well, were incubated at 37°C, 5% CO2 for 24 h and the compounds were added at concentrations of 3x10-12 - 3x10-8 Min triplicates. Cell viability was determined at the beginning (day 0) and after 72-96 h incubation in the presence or absence of NAMPTi-SMOLs or NAMPTi-ADCs.

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In Vitro Model Lung adenocarcinoma A549-C4.4a cells CVCL_0023
Experiment 3 Reporting the Activity Date of This ADC [28]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 10 uM High CD276 expression (CD276+++)
Method Description
The in vitro potency of NAMPTi-SMOLs and NAMPTi-ADCs was determined in human tumor cell lines. Cells (2000-4000 cells/well, were incubated at 37°C, 5% CO2 for 24 h and the compounds were added at concentrations of 3x10-12 - 3x10-8 Min triplicates. Cell viability was determined at the beginning (day 0) and after 72-96 h incubation in the presence or absence of NAMPTi-SMOLs or NAMPTi-ADCs.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
HuAD208.4.1-PBD-DAR2 [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 [27]
Efficacy Data Tumor Growth Inhibition value (TGI)
91%
High LRRC15 expression (LRRC15+++; IHC 3+)
Method Description
EBC-1 squamous NSCLC cells (5 million) were implanted subcutaneously into SCID mice, and mice were randomized when the tumors reached 225 mm and dosed with ADC at 0.6 mg/kg Q7Dx2 (one dose given every 7 days for a total of 2 doses) or isotype antibody at 6 mg/kg intraperitoneally starting on day 0.
In Vivo Model EBC-1 CDX model
In Vitro Model Lung squamous cell carcinoma EBC-1 cells CVCL_2891
Experiment 2 Reporting the Activity Date of This ADC [27]
Efficacy Data Tumor Growth Inhibition value (TGI)
95.80%
High LRRC15 expression (LRRC15+++; IHC 3+)
Method Description
NCI-H1650 adeno NSCLCcells (5 million) were implanted subcutaneously into SCID/Beige mice, and mice were randomized whenthe tumors reached 225 mm and dosed with ADC at 0.6 mg/kg or isotype antibody at 12 mg/kg intraperitoneally once on day 0.
In Vivo Model NCI-H1650 CDX model
In Vitro Model Lung adenocarcinoma NCI-H1650 cells CVCL_1483
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 [27]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
10 nM
Positive LRRC15 expression (LRRC15 +++/++)
Method Description
In vitro cell killing in murine Balb/c BM-MSC (Cyagen) mesenchymal stem cells in thepresence of 10 ng/mL TGF by isotype-PBD-DAR2 or huAD208.4.1-PBD-DAR2. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Normal Mouse bone marrow-derived mesenchymal stem (BM-MSC) cells Mus musculus
Experiment 2 Reporting the Activity Date of This ADC [27]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
10.00 - 100.00 nM
Positive LRRC15 expression (LRRC15 +++/++)
Method Description
In vitro cell killing in human BM-MSC (Lonza) mesenchymalstem cells in the presence of 10 ng/mL TGFB by isotype-PBD-DAR2 or huAD208.4.1-PBD-DAR2. IC50 values were determined by quantitating viable cells using a CellTiter-Glo luminescent assay.
In Vitro Model Normal Human bone marrow-derived mesenchymal stem (BM-MSC) cells Homo sapiens
T-PBA [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 [29]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 93.10% High HER2 expression (HER2+++)
Method Description
The efficacy of T-PBA was evaluated in two HER2-positive xenograft models at different doses and schedules. T-PBA (10 mg/kg), trastuzumab (10 mg/kg), and saline were injected by tail vein to balb/C nude mice for 0, 3, 6, and 9 days.
In Vivo Model NCI-N87 CDX model
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Experiment 2 Reporting the Activity Date of This ADC [29]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 95.20% High HER2 expression (HER2+++)
Method Description
The efficacy of T-PBA was evaluated in two HER2-positive xenograft models at different doses and schedules. T-PBA (10 mg/kg), trastuzumab (10 mg/kg), and saline were injected by tail vein to balb/C nude mice for 0, 3, 6, and 9 days.
In Vivo Model SK-OV-3 CDX 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 [29]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
5.4 nM
High HER2 expression (HER2+++)
Method Description
Cell Counting Kit-8 (Dojindo Laboratories) was used to measure cell viability. Exponentially growing cells were seeded in 96-well plates (100 muL/well) and incubated at 37°C for 24 h.
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
Experiment 2 Reporting the Activity Date of This ADC [29]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
56.1 nM
High HER2 expression (HER2+++)
Method Description
Cell Counting Kit-8 (Dojindo Laboratories) was used to measure cell viability. Exponentially growing cells were seeded in 96-well plates (100 muL/well) and incubated at 37°C for 24 h.
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Experiment 3 Reporting the Activity Date of This ADC [29]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
344.6 nM
High HER2 expression (HER2+++)
Method Description
Cell Counting Kit-8 (Dojindo Laboratories) was used to measure cell viability. Exponentially growing cells were seeded in 96-well plates (100 muL/well) and incubated at 37°C for 24 h.
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
B7H3-EC3 DAR7.8 [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 [28]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 98.50% High CD276 expression (CD276+++)
Method Description
The in vivo antitumor efficacy and tolerability of the selected NAMPTi-ADCs were evaluated in the cell line-derived THP-1 human AmL xenograft model.Treatment with the high-DAR B7H3-EC3 (DAR 7.8; 5 mg/kg,iv,Q7Dx3).
In Vivo Model Monocytic leukemia CDX model
In Vitro Model Childhood acute monocytic leukemia THP-1 cells CVCL_0006
HER2-EC3 [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 [28]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.06 nM
High CD276 expression (CD276+++)
Method Description
The in vitro potency of NAMPTi-SMOLs and NAMPTi-ADCs was determined in human tumor cell lines. Cells (2000-4000 cells/well, were incubated at 37°C, 5% CO2 for 24 h and the compounds were added at concentrations of 3x10-12 - 3x10-8 Min triplicates. Cell viability was determined at the beginning (day 0) and after 72-96 h incubation in the presence or absence of NAMPTi-SMOLs or NAMPTi-ADCs.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Experiment 2 Reporting the Activity Date of This ADC [28]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
300 nM
High LYPD3 expression (LYPD3+++)
Method Description
The in vitro potency of NAMPTi-SMOLs and NAMPTi-ADCs was determined in human tumor cell lines. Cells (2000-4000 cells/well, were incubated at 37°C, 5% CO2 for 24 h and the compounds were added at concentrations of 3x10-12 - 3x10-8 Min triplicates. Cell viability was determined at the beginning (day 0) and after 72-96 h incubation in the presence or absence of NAMPTi-SMOLs or NAMPTi-ADCs.

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In Vitro Model Lung adenocarcinoma A549-C4.4a cells CVCL_0023
Experiment 3 Reporting the Activity Date of This ADC [28]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 10 uM High LYPD3 expression (LYPD3+++); High HER2 expression (HER2+++)
Method Description
The in vitro potency of NAMPTi-SMOLs and NAMPTi-ADCs was determined in human tumor cell lines. Cells (2000-4000 cells/well, were incubated at 37°C, 5% CO2 for 24 h and the compounds were added at concentrations of 3x10-12 - 3x10-8 Min triplicates. Cell viability was determined at the beginning (day 0) and after 72-96 h incubation in the presence or absence of NAMPTi-SMOLs or NAMPTi-ADCs.

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In Vitro Model Childhood acute monocytic leukemia THP-1 cells CVCL_0006
C4.4A-EC3 [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 [28]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
7.1 nM
High LYPD3 expression (LYPD3+++)
Method Description
The in vitro potency of NAMPTi-SMOLs and NAMPTi-ADCs was determined in human tumor cell lines. Cells (2000-4000 cells/well, were incubated at 37°C, 5% CO2 for 24 h and the compounds were added at concentrations of 3x10-12 - 3x10-8 Min triplicates. Cell viability was determined at the beginning (day 0) and after 72-96 h incubation in the presence or absence of NAMPTi-SMOLs or NAMPTi-ADCs.

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In Vitro Model Lung adenocarcinoma A549-C4.4a cells CVCL_0023
Experiment 2 Reporting the Activity Date of This ADC [28]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
23 nM
High CD276 expression (CD276+++)
Method Description
The in vitro potency of NAMPTi-SMOLs and NAMPTi-ADCs was determined in human tumor cell lines. Cells (2000-4000 cells/well, were incubated at 37°C, 5% CO2 for 24 h and the compounds were added at concentrations of 3x10-12 - 3x10-8 Min triplicates. Cell viability was determined at the beginning (day 0) and after 72-96 h incubation in the presence or absence of NAMPTi-SMOLs or NAMPTi-ADCs.

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In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Experiment 3 Reporting the Activity Date of This ADC [28]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 10 uM High LYPD3 expression (LYPD3+++); High HER2 expression (HER2+++)
Method Description
The in vitro potency of NAMPTi-SMOLs and NAMPTi-ADCs was determined in human tumor cell lines. Cells (2000-4000 cells/well, were incubated at 37°C, 5% CO2 for 24 h and the compounds were added at concentrations of 3x10-12 - 3x10-8 Min triplicates. Cell viability was determined at the beginning (day 0) and after 72-96 h incubation in the presence or absence of NAMPTi-SMOLs or NAMPTi-ADCs.

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In Vitro Model Childhood acute monocytic leukemia THP-1 cells CVCL_0006
T-VEd9 [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 [1]
Efficacy Data Tumor Growth Inhibition value (TGI)
99.30%
In Vivo Model NCI-N87/MDA-MB-231 co-incubation model 2 mpk
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI)
100%
In Vivo Model NCI-N87 CDX model 3 mpk
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI)
100%
In Vivo Model NCI-N87 CDX model 1 mpk
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 [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.071 nM
In Vitro Model Breast adenocarcinoma MDA-MB-453 cells CVCL_0418
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.091 nM
In Vitro Model Gastric tubular adenocarcinoma NCI-N87 cells CVCL_1603
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.674 nM
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 4 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 50 nM
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Trastuzumab 20 [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 [30]
Efficacy Data Half Maximal inhibitory Concentration (lC50)
1.3&#1770.04 nM
Positive HER2 expression (HER2+++/++)
Method Description
Tumor cell lines were maintained in RPMI1640 medium supplemented with 10% heat-inactivated fetal bovine serum, 2 mM L-glutamine and 1 mM sodium pyruvate. 1800 cells per well were seeded in a volume of 180 uL in a 96-well flat bottom polystyrene plate. The cells were allowed to adhere overnight at 37 °C in a CO2 incubator. Ligands were initially formulated in dimethyl sulphoxide, and stocks stored at -80 °C. They were then further formulated at 10× concentration in RPMI1640 medium. 20 uL of diluted samples were added into each treatment well. On each plate, blank wells with no cells, and untreated wells containing cells, were included. Plates were then cultured at 37 °C in a CO2 incubator for 96 h. Cytotoxicity was evaluated in triplicate using a tetrazolium salt-based assay, the MTT assay. After 96 h, the supernatant was removed from each well and 200 uL of a sterile filtered 500 ug mL-1 MTT solution in water added to each well. The plates were then incubated at 37 °C in a CO2 incubator for 4 h. The supernatant was then removed and the formazan crystals formed solubilized by adding 150 uL of dimethyl sulphoxide to each well. The plate was then read on a plate reader at 540 nm, and percentage cell survival calculated as follows: ((mean absorbance treated wells at concentration x - mean absorbance blank wells) ÷ (mean absorbance untreated wells at concentration x - mean absorbance blank wells)) × 100. Data were plotted as concentration in nM vs. % cell survival, and IC50 values for inhibition of cell growth were determined with the GraphPad Prism software using non-linear regression.

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In Vitro Model Pancreatic ductal adenocarcinoma Capan-1 cells CVCL_0237
Experiment 2 Reporting the Activity Date of This ADC [30]
Efficacy Data Half Maximal inhibitory Concentration (lC50)
29.7&#1771.55 nM
Negative HER2 expression (HER2-)
Method Description
Tumor cell lines were maintained in RPMI1640 medium supplemented with 10% heat-inactivated fetal bovine serum, 2 mM L-glutamine and 1 mM sodium pyruvate. 1800 cells per well were seeded in a volume of 180 uL in a 96-well flat bottom polystyrene plate. The cells were allowed to adhere overnight at 37 °C in a CO2 incubator. Ligands were initially formulated in dimethyl sulphoxide, and stocks stored at -80 °C. They were then further formulated at 10× concentration in RPMI1640 medium. 20 uL of diluted samples were added into each treatment well. On each plate, blank wells with no cells, and untreated wells containing cells, were included. Plates were then cultured at 37 °C in a CO2 incubator for 96 h. Cytotoxicity was evaluated in triplicate using a tetrazolium salt-based assay, the MTT assay. After 96 h, the supernatant was removed from each well and 200 uL of a sterile filtered 500 ug mL-1 MTT solution in water added to each well. The plates were then incubated at 37 °C in a CO2 incubator for 4 h. The supernatant was then removed and the formazan crystals formed solubilized by adding 150 uL of dimethyl sulphoxide to each well. The plate was then read on a plate reader at 540 nm, and percentage cell survival calculated as follows: ((mean absorbance treated wells at concentration x - mean absorbance blank wells) ÷ (mean absorbance untreated wells at concentration x - mean absorbance blank wells)) × 100. Data were plotted as concentration in nM vs. % cell survival, and IC50 values for inhibition of cell growth were determined with the GraphPad Prism software using non-linear regression.

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In Vitro Model Invasive breast carcinoma MCF-7 cells CVCL_0031
WO2024181570A1 ADC7 [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 [31]
Efficacy Data Half Maximal inhibitory Concentration (lC50)
10 ng/mL
Negative CD138 expression (CD138-)
Method Description
1000 cells/well of Jurkat in 96 well, 37 °C for 5 days.
In Vitro Model T acute lymphoblastic leukemia Jurkat cells CVCL_0065
Experiment 2 Reporting the Activity Date of This ADC [31]
Efficacy Data Half Maximal inhibitory Concentration (lC50)
20 ng/mL
Positive CD138 expression (CD138+++/++)
Method Description
1000 cells/well of Capan-1 in 96 well, 37 °C for 5 days.
In Vitro Model Pancreatic ductal adenocarcinoma Capan-1 cells CVCL_0237
References
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Ref 3 Vadastuximab Talirine (SGN-CD33A; 33A) Combined With Azacitidine or Decitabine in Older Patients With Newly Diagnosed Acute Myeloid Leukemia
Ref 4 A Safety Study of SGN-CD33A in AML Patients
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Ref 6 Radiostereometric Analysis of Fracture Healing in Distal Femur Fractures
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Ref 8 A Randomized, Double-blind Phase 3 Study of Vadastuximab Talirine (SGN-CD33A) Versus Placebo in Combination With Azacitidine or Decitabine in the Treatment of Older Patients With Newly Diagnosed Acute Myeloid Leukemia (AML), NCT02785900
Ref 9 A phase 1 trial of vadastuximab talirine as monotherapy in patients with CD33-positive acute myeloid leukemia. Blood. 2018 Jan 25;131(4):387-396.
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Ref 12 A Phase 1 Trial of SGN-CD33A in Patients With CD33-positive Acute Myeloid Leukemia, NCT01902329
Ref 13 SGN-CD33A: a novel CD33-targeting antibody-drug conjugate using a pyrrolobenzodiazepine dimer is active in models of drug-resistant AML. Blood. 2013 Aug 22;122(8):1455-63.
Ref 14 A Study of SC-006 and in Combination With ABBV-181 in Subjects With Advanced Colorectal Cancer
Ref 15 A Safety Study of SGN-CD123A in Patients With Acute Myeloid Leukemia
Ref 16 A Safety Study of SGN-CD19B in Patients With B-cell Non-Hodgkin Lymphoma
Ref 17 A Study Evaluating the Safety, Pharmacokinetics, and Anti-tumor Activity of ABBV-321 in Subjects With Advanced Solid Tumors Associated With Overexpression of the Epidermal Growth Factor Receptor (EGFR)
Ref 18 A Study Evaluating the Safety, Pharmacokinetics and Anti-Tumor Activity of ABBV-176 in Subjects With Advanced Solid Tumors Likely to Express Prolactin Receptor (PRLR)
Ref 19 Phase I study of anti-epidermal growth factor receptor antibody-drug conjugate serclutamab talirine: Safety, pharmacokinetics, and antitumor activity in advanced glioblastoma. Neurooncol Adv. 2022 Dec 21;5(1):vdac183.
Ref 20 Anti-NaPi2b antibody-drug conjugate lifastuzumab vedotin (DNIB0600A) compared with pegylated liposomal doxorubicin in patients with platinum-resistant ovarian cancer in a randomized, open-label, phase II study. Ann Oncol. 2018 Apr 1;29(4):917-923. doi: 10.1093/annonc/mdy023.
Ref 21 A first-in-human, phase 1, dose-escalation study of ABBV-176, an antibody-drug conjugate targeting the prolactin receptor, in patients with advanced solid tumors. Invest New Drugs. 2020 Dec;38(6):1815-1825.
Ref 22 A Phase 1 Study Evaluating the Safety, Pharmacokinetics, and Anti-tumor Activity of ABBV-321 in Subjects With Advanced Solid Tumors Associated With Overexpression of the Epidermal Growth Factor Receptor (EGFR)
Ref 23 Targeting Multiple EGFR-expressing Tumors with a Highly Potent Tumor-selective Antibody-Drug Conjugate. Mol Cancer Ther. 2020 Oct;19(10):2117-2125.
Ref 24 ABBV-176, a PRLR antibody drug conjugate with a potent DNA-damaging PBD cytotoxin and enhanced activity with PARP inhibition. BMC Cancer. 2021 Jun 9;21(1):681.
Ref 25 Targeting and Efficacy of Novel mAb806-Antibody-Drug Conjugates in Malignant Mesothelioma. Pharmaceuticals (Basel). 2020 Oct 2;13(10):289. doi: 10.3390/ph13100289.
Ref 26 ANTI-cMet antibody drug conjugates and methods for their use; 2017-11-23.
Ref 27 Anti-huLRRC15 antibody drug conjugates and methods for their use. 2017-06-08
Ref 28 A Novel NAMPT Inhibitor-Based Antibody-Drug Conjugate Payload Class for Cancer Therapy. Bioconjug Chem. 2022 Jun 15;33(6):1210-1221.
Ref 29 Design, Synthesis, and Bioevaluation of a Novel Hybrid Molecular Pyrrolobenzodiazepine-Anthracenecarboxyimide as a Payload for Antibody-Drug Conjugate. J Med Chem. 2022 Sep 8;65(17):11679-11702. doi: 10.1021/acs.jmedchem.2c00471. Epub 2022 Aug 18.
Ref 30 A novel DNA sequence-selective, guanine mono-alkylating ADC payload suitable for solid tumour treatment
Ref 31 Antibody-drug complexes containing anti-CD138 antibodies