General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0MSLYM
ADC Name
WO2024193682A1 32G1-8D9-CPT2
Synonyms
32G1-8D9-CPT2
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Organization
XADCERA BIOPHARMACEUTICAL (SUZHOU) CO., LTD.
Drug Status
Investigative
Antibody Name
undisclosed
Antigen Name
Trophoblast glycoprotein (TPBG)
 Antigen Info 
Payload Name
CPT2
 Payload Info 
Therapeutic Target
DNA topoisomerase I (TOP1)
 Target Info 
Linker Name
Undisclosed
General Information of The Activity Data Related to This ADC
Discovered Using Patient-derived Xenograft Model
Click To Hide/Show 3 Activity Data Related to This Level
Standard Type Value Units Animal Model (No. of PDX)
Tumor Growth lnhibition value (TGl) 
54.5
%
Patient-derived Xenograft B-NDG mice Model
Tumor Growth lnhibition value (TGl) 
80.2
%
Patient-derived Xenograft B-NDG mice Model
Tumor Growth lnhibition value (TGl) 
84.3
%
Patient-derived Xenograft B-NDG mice Model
Full List of Activity Data of This Antibody-drug Conjugate
Discovered Using Patient-derived Xenograft Model
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth lnhibition value (TGl)
54.50%
Method Description
B-NDG mice were engrafted in the right flank with gastric cancer patient-derived tumortissue fragments (2 mm x 2 mm x 2 mm). The immunofluorescence staining results showed that TPBG-positive cells and MET-positive cells in the gastric tumor fragments were 10.1 1% and 1.19%, respectively, When the tumors in the mice reached a volume of about 200-300 mm3, the mice were randomly placed into different groups based on the tumor volume. The mice werethen injected with 6mg/kg ADC's by i.v, QW, administration. Determined tumor volume after the experiment, measured at day 35.

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In Vivo Model Patient-derived Xenograft B-NDG mice Model
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth lnhibition value (TGl)
80.20%
Method Description
B-NDG mice were engrafted in the right flank with pancreatic cancer patient-derivedtumor tissue fragments (2 mm x 2 mm x 2 mm). The immunofluorescence staining results showed that TPGB-positive cells and MET-positive cells in the pancreatic tumor fragments were 19.54% and 8.31%, respectively. When the tumors in the mice reached a volume of about 200-300 mm3, the mice were randomly placed into different groups based on the tumor volume. Themice were then injected with 3mg/kg ADC's by i.v, BIW, administration. Determined tumor volume after the experiment, measured at day 32.

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In Vivo Model Patient-derived Xenograft B-NDG mice Model
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth lnhibition value (TGl)
84.30%
Method Description
B-NDG mice were engrafted in the right flank with pancreatic cancer patient-derivedtumor tissue fragments (2 mm x 2 mm x 2 mm). The immunofluorescence staining results showed that TPGB-positive cells and MET-positive cells in the pancreatic tumor fragments were 31.01% and 76.96%, respectively. When the tumors in the mice reached a volume of about 200-300mm3, the mice were randomly placed into different groups based on the tumor volume. Themice were then injected with 6mg/kg ADC's by i.v, QW, administration. Determined tumor volume after the experiment, measured at day 25.

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In Vivo Model Patient-derived Xenograft B-NDG mice Model
References
Ref 1 Anti-TPBG/MET antibodies and uses thereof