General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0DEOYK
ADC Name
A43-PE24
Synonyms
A43 PE24; A43PE24
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Drug Status
Investigative
Indication
In total 1 Indication(s)
Hepatocellular carcinoma [ICD11:2C12]
Investigative
Antibody Name
Anti-GPC3 mAb A43
 Antibody Info 
Antigen Name
Glypican-3 (GPC3)
 Antigen Info 
Payload Name
Pseudomonas exotoxin PE24
 Payload Info 
Therapeutic Target
Eukaryotic elongation factor 2 (EEF2)
 Target Info 
Linker Name
Undisclosed
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) 
≈ 50
%
Hepatocellular carcinoma cells
Hepatocellular carcinoma
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Standard Type Value Units Cell Line Disease Model
Inhibitory Concentration 5% (IC5) 
110
ng/mL
G1LG cells
Hepatocellular 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) ≈ 50.00% (Day 48) Positive GPC3 expression (GPC3+++/++)
Method Description
A43-PE24 induces efficient tumor cell killing in cell line-derived models of immunotherapy of hepatocellular carcinoma cells.
In Vivo Model Hepatocellular carcinoma CDX model
In Vitro Model Hepatocellular carcinoma Hepatocellular carcinoma cells Homo sapiens
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Inhibitory Concentration 5% (IC5) 110.00 ng/mL Positive GPC3 expression (GPC3+++/++)
Method Description
Ten thousand cells were seeded in a 96-well cell culture plate (200 l per well), supplemented with purified immunotoxins at the indicated final concentrations, and incubated at 37°C for 3 days. Cell viability was determined by quantifying the enzymatic activity of the intracellular luciferase that was released by two rounds of freezing-thawing.

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In Vitro Model Hepatocellular carcinoma G1LG cells Homo sapiens
References
Ref 1 Highly Potent Immunotoxins Targeting the Membrane-distal N-lobe of GPC3 for Immunotherapy of Hepatocellular Carcinoma. J Cancer. 2022 Feb 14;13(4):1370-1384.

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