General Information of This Linker
Linker ID
LIN0WLMUR
Linker Name
BCN-HydraSpace-Val-Ala-PABC
Linker Type
Cathepsin-cleavable linker
Antibody-Linker Relation
Cleavable
Structure
Formula
C52H76N10O19S2
Isosmiles
CC(NC(=O)C(NC(=O)OCCN(CCOC(=O)NC(C(=O)NC(C)C(=O)Nc1ccc(CO)cc1)C(C)C)S(=O)(=O)NC(=O)OCCOCCNS(=O)(=O)NC(=O)OCC1C2CCC#CCCC21)C(C)C)C(=O)Nc1ccc(CO)cc1
InChI
InChI=1S/C52H76N10O19S2/c1-32(2)43(47(67)54-34(5)45(65)56-38-17-13-36(29-63)14-18-38)58-49(69)78-25-22-62(23-26-79-50(70)59-44(33(3)4)48(68)55-35(6)46(66)57-39-19-15-37(30-64)16-20-39)83(75,76)61-52(72)80-28-27-77-24-21-53-82(73,74)60-51(71)81-31-42-40-11-9-7-8-10-12-41(40)42/h13-20,32-35,40-44,53,63-64H,9-12,21-31H2,1-6H3,(H,54,67)(H,55,68)(H,56,65)(H,57,66)(H,58,69)(H,59,70)(H,60,71)(H,61,72)
InChIKey
NNKFBMCYMVLPJI-UHFFFAOYSA-N
Pharmaceutical Properties
Molecule Weight
1209.365
Polar area
402.96
Complexity
83
xlogp Value
1.0492
Heavy Count
83
Rot Bonds
32
Hbond acc
19
Hbond Donor
11
Each Antibody-drug Conjugate Related to This Linker
Full Information of The Activity Data of The ADC(s) Related to This Linker
Mipasetamab uzoptirine [Phase 1]
Discovered Using Patient-derived Xenograft Model
Click To Hide/Show 8 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 35.00% (Day 65) Positive AXL expression (AXL+++/++)
Method Description
In vivo antitumor activity of ADCT-601 in BRCA1-mutated ovarian cancer PDX model. Single-dose (0.15 mg/kg,q.d.) ADCT-601 and isotype-control ADC (B12-PL1601) were administered intravenously (day 1) to treatment groups of 8 mice.
In Vivo Model BRCA1-mutated ovarian cancer PDX model (PDX: CTG-0703)
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 57.40% (Day 21) Positive AXL expression (AXL+++/++)
Method Description
The antitumor activity of ADCT-601 was tested in a range of human solid tumor xenograft models covering multiple indications. Single-dose (0.075 mg/kg,q.d.). ADCT-601 and isotype-control ADC (B12-PL1601) were administered intravenously (day 1) to treatment groups of 8 mice.
In Vivo Model Pancreatic cancer PDX model (PDX: PAXF1657)
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 65.80% (Day 65) Negative AXL expression (AXL-)
Method Description
In vivo antitumor activity of ADCT-601 in BRCA1-mutated ovarian cancer PDX model. Single-dose (0.15 mg/kg,q.d.) ADCT-601 in combination with olaparib (50 mg/kg) and isotype-control ADC (B12-PL1601) were administered intravenously (day 1) to treatment groups of 8 mice.
In Vivo Model BRCA1-mutated ovarian cancer PDX model (PDX: CTG-0703)
Experiment 4 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 68.70% (Day 30) Negative AXL expression (AXL-)
Method Description
In vivo antitumor activity of ADCT-601 in a MMAE-resistant NCI-H1299 NSCLC model. Single-dose (0.50 mg/kg,q.d.) ADCT-601 and isotype-control ADC (B12-PL1601) were administered intravenously (day 1) to treatment groups of 8 mice.
In Vivo Model MMAE-resistant non-small cell lung cancer PDX model (PDX: NCI-H1299)
Experiment 5 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 72.10% (Day 30) Positive AXL expression (AXL+++/++; 88,000 copy number)
Method Description
In vivo antitumor activity of ADCT-601 in a MMAE-resistant NCI-H1299 NSCLC model. Single-dose (1.00 mg/kg,q.d.) ADCT-601 and isotype-control ADC (B12-PL1601) were administered intravenously (day 1) to treatment groups of 8 mice.
In Vivo Model MMAE-resistant non-small cell lung cancer PDX model (PDX: NCI-H1299)
Experiment 6 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 84.90% (Day 21) Positive AXL expression (AXL+++/++; 88,000 copy number)
Method Description
The antitumor activity of ADCT-601 was tested in a range of human solid tumor xenograft models covering multiple indications. Single-dose (0.15 mg/kg,q.d.). ADCT-601 and isotype-control ADC (B12-PL1601) were administered intravenously (day 1) to treatment groups of 8 mice.
In Vivo Model Pancreatic cancer PDX model (PDX: PAXF1657)
Experiment 7 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 96.90% (Day 21) Positive AXL expression (AXL+++/++; 88,000 copy number)
Method Description
The antitumor activity of ADCT-601 was tested in a range of human solid tumor xenograft models covering multiple indications. Single-dose (0.30 mg/kg,q.d.). ADCT-601 and isotype-control ADC (B12-PL1601) were administered intravenously (day 1) to treatment groups of 8 mice.
In Vivo Model Pancreatic cancer PDX model (PDX: PAXF1657)
Experiment 8 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 98.50% (Day 51) Positive AXL expression (AXL+++/++; 36,000 copy number)
Method Description
The antitumor activity of ADCT-601 was tested in a range of human solid tumor xenograft models covering multiple indications. Single-dose (1 mg/kg,q.d.) 0.ADCT-601 and isotype-control ADC (B12-PL1601) were administered intravenously (day 1) to treatment groups of 8 mice.
In Vivo Model Esophageal caner PDX model (PDX: ES0195)
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 [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 69.40% (Day 60) Positive AXL expression (AXL+++/++)
Method Description
The antitumor activity of ADCT-601 was tested in a range of human solid tumor xenograft models covering multiple indications. Single-dose (0.30 mg/kg,q.d.). ADCT-601 and isotype-control ADC (B12-PL1601) were administered intravenously (day 1) to treatment groups of 8 mice.
In Vivo Model kidney cancer CDX model
In Vitro Model Renal cell carcinoma SN12C cells CVCL_1705
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 86.20% (Day 60) Positive AXL expression (AXL+++/++)
Method Description
The antitumor activity of ADCT-601 was tested in a range of human solid tumor xenograft models covering multiple indications. Single-dose (0.60 mg/kg,q.d.). ADCT-601 and isotype-control ADC (B12-PL1601) were administered intravenously (day 1) to treatment groups of 8 mice.
In Vivo Model kidney cancer CDX model
In Vitro Model Renal cell carcinoma SN12C cells CVCL_1705
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 97.60% (Day 23) Positive AXL expression (AXL+++/++)
Method Description
The antitumor activity of ADCT-601 was tested in a range of human solid tumor xenograft models covering multiple indications. Single-dose (1.00 mg/kg,q.d.). ADCT-601 and isotype-control ADC were administered intravenously (day 1) to treatment groups of 10 mice.
In Vivo Model Triple-negative breast cancer CDX model
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Experiment 4 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 98.50% (Day 60) Positive AXL expression (AXL+++/++)
Method Description
The antitumor activity of ADCT-601 was tested in a range of human solid tumor xenograft models covering multiple indications. Single-dose (1.00 mg/kg,q.d.). ADCT-601 and isotype-control ADC (B12-PL1601) were administered intravenously (day 1) to treatment groups of 8 mice.
In Vivo Model Kidney cancer CDX model
In Vitro Model Renal cell carcinoma SN12C cells CVCL_1705
Revealed Based on the Cell Line Data
Click To Hide/Show 9 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.02 nM
Positive AXL expression (AXL+++/++; 46,000 copy number)
Method Description
In vitro cytotoxicity was determined by incubation of cell lines with serial dilutions of ADCT-601,the nonbinding control ADC,or the free PBD dimer cytotoxin SG3199 for 5-8 days at 37°C in a 5% CO2-gassed,humidified incubator. ADCT-601 selectively inhibited the growth of a panel of seven AXL-positive human cancer cell lines and two AXL-negative cell lines.

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In Vitro Model Lung adenocarcinoma SK-LU-1 cells CVCL_0629
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.11 nM
Positive AXL expression (AXL+++/++; 88,000 copy number)
Method Description
In vitro cytotoxicity was determined by incubation of cell lines with serial dilutions of ADCT-601,the nonbinding control ADC,or the free PBD dimer cytotoxin SG3199 for 5-8 days at 37°C in a 5% CO2-gassed,humidified incubator. ADCT-601 selectively inhibited the growth of a panel of seven AXL-positive human cancer cell lines and two AXL-negative cell lines.

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In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.35 nM
Positive AXL expression (AXL+++/++; 79,000 copy number)
Method Description
In vitro cytotoxicity was determined by incubation of cell lines with serial dilutions of ADCT-601,the nonbinding control ADC,or the free PBD dimer cytotoxin SG3199 for 5-8 days at 37°C in a 5% CO2-gassed,humidified incubator. ADCT-601 selectively inhibited the growth of a panel of seven AXL-positive human cancer cell lines and two AXL-negative cell lines.

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In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
Experiment 4 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.47 nM
Positive AXL expression (AXL+++/++; 24,000 copy number)
Method Description
In vitro cytotoxicity was determined by incubation of cell lines with serial dilutions of ADCT-601,the nonbinding control ADC,or the free PBD dimer cytotoxin SG3199 for 5-8 days at 37°C in a 5% CO2-gassed,humidified incubator. ADCT-601 selectively inhibited the growth of a panel of seven AXL-positive human cancer cell lines and two AXL-negative cell lines.

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In Vitro Model Pancreatic ductal adenocarcinoma PANC-1 cells CVCL_0480
Experiment 5 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.59 nM
Positive AXL expression (AXL+++/++; 23,000 copy number)
Method Description
In vitro cytotoxicity was determined by incubation of cell lines with serial dilutions of ADCT-601,the nonbinding control ADC,or the free PBD dimer cytotoxin SG3199 for 5-8 days at 37°C in a 5% CO2-gassed,humidified incubator. ADCT-601 selectively inhibited the growth of a panel of seven AXL-positive human cancer cell lines and two AXL-negative cell lines.

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In Vitro Model Glioblastoma A-172 cells CVCL_0131
Experiment 6 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.83 nM
Positive AXL expression (AXL+++/++; 79,000 copy number)
Method Description
In vitro cytotoxicity was determined by incubation of cell lines with serial dilutions of ADCT-601,the nonbinding control ADC,or the free PBD dimer cytotoxin SG3199 for 5-8 days at 37°C in a 5% CO2-gassed,humidified incubator. ADCT-601 selectively inhibited the growth of a panel of seven AXL-positive human cancer cell lines and two AXL-negative cell lines.

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In Vitro Model Renal cell carcinoma SN12C cells CVCL_1705
Experiment 7 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
2.20 nM
Positive AXL expression (AXL+++/++; 20,000 copy number)
Method Description
In vitro cytotoxicity was determined by incubation of cell lines with serial dilutions of ADCT-601,the nonbinding control ADC,or the free PBD dimer cytotoxin SG3199 for 5-8 days at 37°C in a 5% CO2-gassed,humidified incubator. ADCT-601 selectively inhibited the growth of a panel of seven AXL-positive human cancer cell lines and two AXL-negative cell lines.

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In Vitro Model Lung large cell carcinoma NCI-H1299 cells CVCL_0060
Experiment 8 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
9.29 nM
Positive AXL expression (AXL+++/++; 79,000 copy number)
Method Description
In vitro cytotoxicity was determined by incubation of cell lines with serial dilutions of ADCT-601,the nonbinding control ADC,or the free PBD dimer cytotoxin SG3199 for 5-8 days at 37°C in a 5% CO2-gassed,humidified incubator. ADCT-601 selectively inhibited the growth of a panel of seven AXL-positive human cancer cell lines and two AXL-negative cell lines.

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In Vitro Model Breast adenocarcinoma MDA-MB-361 cells CVCL_0620
Experiment 9 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
14.62 nM
Positive AXL expression (AXL+++/++; 36,000 copy number)
Method Description
In vitro cytotoxicity was determined by incubation of cell lines with serial dilutions of ADCT-601,the nonbinding control ADC,or the free PBD dimer cytotoxin SG3199 for 5-8 days at 37°C in a 5% CO2-gassed,humidified incubator. ADCT-601 selectively inhibited the growth of a panel of seven AXL-positive human cancer cell lines and two AXL-negative cell lines.

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In Vitro Model ALK-positive anaplastic large cell lymphoma Karpas-299 cells CVCL_1324
References
Ref 1 Preclinical Development of ADCT-601, a Novel Pyrrolobenzodiazepine Dimer-based Antibody-drug Conjugate Targeting AXL-expressing Cancers. Mol Cancer Ther. 2022 Apr 1;21(4):582-593.

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