General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0BLQZY
ADC Name
LMB-164
Synonyms
LMB 164; SS1-dsFv-ABD-LRggs
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Drug Status
Investigative
Indication
In total 1 Indication(s)
Colorectal cancer [ICD11:2B91]
Investigative
Antibody Name
Anti-MSLN scFv
 Antibody Info 
Antigen Name
Mesothelin (MSLN)
 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) 
≈ 78.15
%
SW48 cells
Colon adenocarcinoma
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
Half Maximal Inhibitory Concentration (IC50) 
0.38
ng/mL
KLM-1 cells
Pancreatic ductal adenocarcinoma
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) ≈ 78.15% (Day 6) Positive MSLN expression (MSLN +++/++)
Method Description
In vivo efficacy of LMB-100 and LMB-164 in an SW48 mouse xenograft model was evaluated. LMB-100 was administered i.v. at 2.5 mg/kg dose every other day for 6 days for two cycles with three days in between cycles.
In Vivo Model SW48 CDX model
In Vitro Model Colon adenocarcinoma SW48 cells CVCL_1724
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 Half Maximal Inhibitory Concentration (IC50) 0.38 ng/mL±0.08 ng/mL Positive MSLN expression (MSLN +++/++)
Method Description
KLM-1 pancreatic adenocarcinoma cells were treated with indicated concentrations of LMB-12, LMB-100, or LMB-164 anti-MSLN targeted RITs for 72 hours before WST-8 assay of cell viability.
In Vitro Model Pancreatic ductal adenocarcinoma KLM-1 cells CVCL_5146
References
Ref 1 Anti-Mesothelin Recombinant Immunotoxin Therapy for Colorectal Cancer. Clin Colorectal Cancer. 2019 Sep;18(3):192-199.e1. doi: 10.1016/j.clcc.2019.06.006. Epub 2019 Jul 2.

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