General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0GYNBS
ADC Name
XMT-1522
Synonyms
TAK-522; XMT1522; XMT 1522; TAK 522; TAK522
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Organization
Mersana Therapeutics, Inc.; Adimab LLC; Takeda Pharmaceutical Co., Ltd.
Drug Status
Terminated in phase 1
Indication
In total 3 Indication(s)
Breast cancer [ICD11:2C60-2C65]
Terminated in phase 1
Gastric cancer [ICD11:2B72]
Terminated in phase 1
Non-small cell lung cancer [ICD11:2C25]
Terminated in phase 1
Drug-to-Antibody Ratio
12
Antibody Name
XMT-1519
 Antibody Info 
Antigen Name
Receptor tyrosine-protein kinase erbB-2 (ERBB2)
 Antigen Info 
Payload Name
Auristatin F hydroxypropylamide (AF-HPA)
 Payload Info 
Therapeutic Target
Microtubule (MT)
 Target Info 
Linker Name
Fleximer polymer
 Linker Info 
Conjugate Type
Random conjugation through reduced inter-chain cysteines.
Combination Type
Dolaflexin (containing 24 AF-HPA)
TTD ID
D07FZF
General Information of The Activity Data Related to This ADC
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 1 Activity Data Related to This Level
Standard Type Value Units Cell Line Disease Model
Tumor Growth Inhibition value (TGI) 
≈ 100
%
JIMT-1 cells
Breast ductal carcinoma
Full List of Activity Data of This Antibody-drug Conjugate
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 [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 100.00% (Day 49) Positive HER2 expression (HER2+++/++)
Method Description
XMT-1522 (3 mg/kg, every seven days x3) induces efficient tumor cell killing in cell line-derived models of JIMT-1 cells with HER2 expression with high expression.
In Vivo Model JIMT-1 CDX model
In Vitro Model Breast ductal carcinoma JIMT-1 cells CVCL_2077
References
Ref 1 A Novel Anti-HER2 Antibody-Drug Conjugate XMT-1522 for HER2-Positive Breast and Gastric Cancers Resistant to Trastuzumab Emtansine. Mol Cancer Ther. 2019 Oct;18(10):1721-1730. doi: 10.1158/1535-7163.MCT-19-0207. Epub 2019 Jul 10.

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