General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0SIFSO
ADC Name
T-D2-1508
Synonyms
T-D2 AZ-1508
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Drug Status
Investigative
Indication
In total 1 Indication(s)
Breast cancer [ICD11:2C60-2C65]
Investigative
Drug-to-Antibody Ratio
2
Antibody Name
Trastuzumab
 Antibody Info 
Antigen Name
Receptor tyrosine-protein kinase erbB-2 (ERBB2)
 Antigen Info 
Payload Name
AZ-1508
 Payload Info 
Therapeutic Target
Microtubule (MT)
 Target Info 
Linker Name
Cysteine D2
 Linker Info 
Conjugate Type
Site-specific conjugation through reduced inter-chain cysteines (Cys 239)
General Information of The Activity Data Related to This ADC
Revealed Based on the Cell Line Data
Click To Hide/Show 4 Activity Data Related to This Level
Standard Type Value Units Cell Line Disease Model
Half Maximal Inhibitory Concentration (IC50) 
6.4
ng/mL
MDA-MB-361 cells
Breast adenocarcinoma
Half Maximal Inhibitory Concentration (IC50) 
> 1000
ng/mL
T-47D cells
Invasive breast carcinoma
Half Maximal Inhibitory Concentration (IC50) 
> 10
ug/mL
MDA-MB-361 cells
Breast adenocarcinoma
Half Maximal Inhibitory Concentration (IC50) 
> 10
ug/mL
T-47D cells
Invasive breast carcinoma
Full List of Activity Data of This Antibody-drug Conjugate
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) 6.40 ng/mL Moderate HER2 expression (HER2 ++)
Method Description
Tumor cell lines were seeded in 96-well culture plates at 2000, 1600 and 5000 per well in 80 l, respectively, allowed to adhere overnight and treated on the following day with 20 l of serial dilutions of ADCs in duplicate.
In Vitro Model Breast adenocarcinoma MDA-MB-361 cells CVCL_0620
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 1000 ng/mL Low HER2 expression (HER2 +)
Method Description
Tumor cell lines were seeded in 96-well culture plates at 2000, 1600 and 5000 per well in 80 l, respectively, allowed to adhere overnight and treated on the following day with 20 l of serial dilutions of ADCs in duplicate.
In Vitro Model Invasive breast carcinoma T-47D cells CVCL_0553
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 10.00 ug/mL Moderate HER2 expression (HER2 ++)
Method Description
Tumor cell lines were seeded in 96-well culture plates at 2000, 1600 and 5000 per well in 80 l, respectively, allowed to adhere overnight and treated on the following day with 20 l of serial dilutions of ADCs in duplicate.
In Vitro Model Breast adenocarcinoma MDA-MB-361 cells CVCL_0620
Experiment 4 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 10.00 ug/mL Low HER2 expression (HER2 +)
Method Description
Tumor cell lines were seeded in 96-well culture plates at 2000, 1600 and 5000 per well in 80 l, respectively, allowed to adhere overnight and treated on the following day with 20 l of serial dilutions of ADCs in duplicate.
In Vitro Model Invasive breast carcinoma T-47D cells CVCL_0553
References
Ref 1 Design and Validation of Linkers for Site-Specific Preparation of Antibody-Drug Conjugates Carrying Multiple Drug Copies Per Cysteine Conjugation Site. Int J Mol Sci. 2020 Sep 19;21(18):6882. doi: 10.3390/ijms21186882.

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