General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0CRHCH
ADC Name
ABBV-322
Synonyms
ABBV322; ABBV 322; Depatuxizumab S238C-PBD dimer
   Click to Show/Hide
Drug Status
Investigative
Indication
In total 1 Indication(s)
Pleural mesothelioma [ICD11:2C26]
Investigative
Drug-to-Antibody Ratio
2
Antibody Name
Depatuxizumab S238C
 Antibody Info 
Antigen Name
Epidermal growth factor receptor (EGFR)
 Antigen Info 
Payload Name
PBD dimer
 Payload Info 
Therapeutic Target
Human Deoxyribonucleic acid (hDNA)
 Target Info 
Linker Name
Mc-Val-Ala
 Linker Info 
Conjugate Type
Random conjugation through reduced inter-chain cysteines.
General Information of The Activity Data Related to This ADC
Discovered Using Patient-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Standard Type Value Units Animal Model (No. of PDX)
Tumor Growth Inhibition value (TGI) 
≈ 34.6
%
Malignant Mesothelioma PDX model (PDX: MPM36)
Tumor Growth Inhibition value (TGI) 
≈ 65.8
%
Malignant Mesothelioma PDX model (PDX: 14R091)
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) 
10.00 - 35.00
ug/mL
MSTO-211H cells
Pleural biphasic mesothelioma
Half Maximal Inhibitory Concentration (IC50) 
10.00 - 35.00
ug/mL
NCI-H28 cells
Pleural mesothelioma
Half Maximal Inhibitory Concentration (IC50) 
10.00 - 35.00
ug/mL
NCI-H2052 cells
Pleural mesothelioma
Half Maximal Inhibitory Concentration (IC50) 
10.00 - 35.00
ug/mL
NCI-H2052 cells
Pleural mesothelioma
Full List of Activity Data of This Antibody-drug Conjugate
Discovered Using Patient-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 34.60% (Day 28) Positive EGFR expression (EGFR+++/++)
Method Description
For the PDX 14R091 and PDX MPM36 studies, mice received ABBV-322 (0.03 mg/kg) or control ADC (0.03 mg/kg) every 4 days, for a total of 12 treatments.
In Vivo Model Malignant Mesothelioma PDX model (PDX: MPM36)
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Tumor Growth Inhibition value (TGI) ≈ 65.80% (Day 60) Positive EGFR expression (EGFR+++/++)
Method Description
For the PDX 14R091 and PDX MPM36 studies, mice received ABBV-322 (0.03 mg/kg) or control ADC (0.03 mg/kg) every 4 days, for a total of 12 treatments.
In Vivo Model Malignant Mesothelioma PDX model (PDX: 14R091)
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) 10.00 ug/mL - 35.00 ug/mL Positive EGFR expression (EGFR+++/++)
Method Description
Cells lines were plated at 1,000-3,000 cells per well in complete growth medium containing 10% FCS in 96-well plates and allowed to adhere overnight.
In Vitro Model Pleural biphasic mesothelioma MSTO-211H cells CVCL_1430
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) 10.00 ug/mL - 35.00 ug/mL Positive EGFR expression (EGFR+++/++)
Method Description
Cells lines were plated at 1,000-3,000 cells per well in complete growth medium containing 10% FCS in 96-well plates and allowed to adhere overnight.
In Vitro Model Pleural mesothelioma NCI-H28 cells CVCL_1555
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) 10.00 ug/mL - 35.00 ug/mL Positive EGFR expression (EGFR+++/++)
Method Description
Cells lines were plated at 1,000-3,000 cells per well in complete growth medium containing 10% FCS in 96-well plates and allowed to adhere overnight.
In Vitro Model Pleural mesothelioma NCI-H2052 cells CVCL_1518
Experiment 4 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) 10.00 ug/mL - 35.00 ug/mL Positive EGFR expression (EGFR+++/++)
Method Description
Cells lines were plated at 1,000-3,000 cells per well in complete growth medium containing 10% FCS in 96-well plates and allowed to adhere overnight.
In Vitro Model Pleural mesothelioma NCI-H2052 cells CVCL_1518
References
Ref 1 Targeting and Efficacy of Novel mAb806-Antibody-Drug Conjugates in Malignant Mesothelioma. Pharmaceuticals (Basel). 2020 Oct 2;13(10):289. doi: 10.3390/ph13100289.

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