General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0IWWAX
ADC Name
PD-L1 ADC 1
Synonyms
PD-L1-ADC-1
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Drug Status
Investigative
Indication
In total 3 Indication(s)
Breast cancer [ICD11:2C60-2C65]
Investigative
Lung cancer [ICD11:2C25]
Investigative
Lung squamous cell carcinoma [ICD11:2C25]
Investigative
Drug-to-Antibody Ratio
4-5
Structure
Antibody Name
Avelumab
 Antibody Info 
Antigen Name
Programmed cell death 1 ligand 1 (CD274)
 Antigen Info 
Payload Name
Monomethyl auristatin E
 Payload Info 
Therapeutic Target
Microtubule (MT)
 Target Info 
Linker Name
Mc-Val-Ala-PABC
 Linker Info 
Conjugate Type
Random conjugation through reduced inter-chain cysteines.
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) 
265.3
nM
SK-MES-1 cells
Lung squamous cell carcinoma
Half Maximal Inhibitory Concentration (IC50) 
> 663.08
nM
Calu-1 cells
Lung squamous cell carcinoma
Half Maximal Inhibitory Concentration (IC50) 
> 663.08
nM
MDA-MB-231 cells
Breast adenocarcinoma
Half Maximal Inhibitory Concentration (IC50) 
> 663.08
nM
AsPC-1 cells
Pancreatic ductal adenocarcinoma
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) 265.30 nM High PD-L1 expression (PD-L1+++)
Method Description
The in vitro cytotoxicity of ADC 1 and ADC 2 was evaluated in three PD-L1-positive cell lines, i.e., Calu-1, MDA-MB-231, and SK-MES, and one PD-L1-negative cell line, i.e., AsPC-1.
In Vitro Model Lung squamous cell carcinoma SK-MES-1 cells CVCL_0630
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 663.08 nM High PD-L1 expression (PD-L1+++)
Method Description
The in vitro cytotoxicity of ADC 1 and ADC 2 was evaluated in three PD-L1-positive cell lines, i.e., Calu-1, MDA-MB-231, and SK-MES, and one PD-L1-negative cell line, i.e., AsPC-1.
In Vitro Model Lung squamous cell carcinoma Calu-1 cells CVCL_0608
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 663.08 nM High PD-L1 expression (PD-L1+++)
Method Description
The in vitro cytotoxicity of ADC 1 and ADC 2 was evaluated in three PD-L1-positive cell lines, i.e., Calu-1, MDA-MB-231, and SK-MES, and one PD-L1-negative cell line, i.e., AsPC-1.
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) > 663.08 nM Negative PD-L1 expression (PD-L1-)
Method Description
The in vitro cytotoxicity of ADC 1 and ADC 2 was evaluated in three PD-L1-positive cell lines, i.e., Calu-1, MDA-MB-231, and SK-MES, and one PD-L1-negative cell line, i.e., AsPC-1.
In Vitro Model Pancreatic ductal adenocarcinoma AsPC-1 cells CVCL_0152
References
Ref 1 Development of bifunctional anti-PD-L1 antibody MMAE conjugate with cytotoxicity and immunostimulation. Bioorg Chem. 2021 Nov;116:105366.

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