General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0PCDTC
ADC Name
H- (C)-#10
Synonyms
H- (C)-#10
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Organization
PFIZER INC.
Drug Status
Investigative
Drug-to-Antibody Ratio
5.3
Structure
Antibody Name
anti-Her2 114 (H- (A114C)) and 183 (H- (kK183C)) mAb
 Antibody Info 
Antigen Name
Receptor tyrosine-protein kinase erbB-2 (ERBB2)
 Antigen Info 
Payload Name
Undisclosed
Therapeutic Target
Stimulator of interferon genes protein (STING1)
 Target Info 
Linker Name
Undisclosed
Conjugate Type
Internal Cysteines
General Information of The Activity Data Related to This ADC
Revealed Based on the Cell Line Data
Click To Hide/Show 5 Activity Data Related to This Level
Standard Type Value Units Cell Line Disease Model
Half Maximal inhibitory Concentration (lC50) 
8.53
ng/mL
CVCL_0179
Invasive breast carcinoma
Half Maximal inhibitory Concentration (lC50) 
14.59
ng/mL
CVCL_0620
Breast adenocarcinoma
Half Maximal inhibitory Concentration (lC50) 
43.5
ng/mL
CVCL_0179
Invasive breast carcinoma
Half Maximal inhibitory Concentration (lC50) 
749.14
ng/mL
CVCL_0419
Breast adenocarcinoma
Half Maximal inhibitory Concentration (lC50) 
> 37021
ng/mL
CVCL_0320
Colon adenocarcinoma
Full List of Activity Data of This Antibody-drug Conjugate
Revealed Based on the Cell Line Data
Click To Hide/Show 5 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) 8.53 ng/mL Positive Her2 expression (Her2+++/++)
Method Description
Her2-Target expressing BT474 (breast cancer cells were seeded in 96-well cell culture plates for 24 hours before treatment. Cells were treated with 3-fold serially diluted antibody-drug conjugates or free compounds (i.e., no antibody conjugated to the drug) in duplicate at 10 concentrations.
In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) 14.59 ng/mL Positive Her2 expression (Her2+++/++)
Method Description
Her2-Target expressing MDA-MB-361-DYT2 (breast cancer) cells were seeded in 96-well cell culture plates for 24 hours before treatment. Cells were treated with 3-fold serially diluted antibody-drug conjugates or free compounds (i.e., no antibody conjugated to the drug) in duplicate at 31 concentrations.
In Vitro Model Breast adenocarcinoma MDA-MB-361-DYT2 cells CVCL_0620
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) 43.5 ng/mL Positive Her2 expression (Her2+++/++)
Method Description
Her2-Target expressing (BT474 (breast cancer), N87 (gastric cancer), MDA-MB-361-DYT2 (breast cancer)) or Her2-non-expressing (MDA-MB-468, HT29) cells, or CD33-target expressing HL60, HEL92.1.7, NB4 or CD33-non-expressing (Raji) cells were seeded in 96-well cell culture plates for 24 hours before treatment. Cells were treated with 3-fold serially diluted antibody-drug conjugates or free compounds (i.e., no antibody conjugated to the drug) in duplicate at 31 concentrations.

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In Vitro Model Invasive breast carcinoma BT-474 cells CVCL_0179
Experiment 4 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) 749.14 ng/mL Negative Her2 expression (Her2-)
Method Description
Her2-non-expressing (MDA-MB-468, HT29) cells were seeded in 96-well cell culture plates for 24 hours before treatment. Cells were treated with 3-fold serially diluted antibody-drug conjugates or free compounds (i.e., no antibody conjugated to the drug) in duplicate at 31 concentrations.
In Vitro Model Breast adenocarcinoma MDA-MB-468 cells (HER2-) CVCL_0419
Experiment 5 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) > 37021 ng/mL Negative Her2 expression (Her2-)
Method Description
Her2-non-expressing HT29) cells were seeded in 96-well cell culture plates for 24 hours before treatment. Cells were treated with 3-fold serially diluted antibody-drug conjugates or free compounds (i.e., no antibody conjugated to the drug) in duplicate at 31 concentrations.
In Vitro Model Colon adenocarcinoma HT29 cells (HER2-) CVCL_0320
References
Ref 1 Heteroaryl sulfone-based conjugation handles, methods for their preparation, and their use in synthesizing antibody drug conjugates