General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0YSSTK
ADC Name
muFR1-13-PEG4-Mal-DM4
Synonyms
muFR1 13 PEG4 Mal DM4
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Organization
ImmunoGen, Inc.
Drug Status
Investigative
Indication
In total 2 Indication(s)
Cervical cancer [ICD11:2C77]
Investigative
Ovarian cancer [ICD11:2C73]
Investigative
Drug-to-Antibody Ratio
3.5-4
Structure
Antibody Name
mu-FR1-13
 Antibody Info 
Antigen Name
Folate receptor alpha (FOLR1)
 Antigen Info 
Payload Name
Mertansine DM4
 Payload Info 
Therapeutic Target
Microtubule (MT)
 Target Info 
Linker Name
PEG4-Mal
 Linker Info 
Conjugate Type
Random conjugation through nucleophilic lysines.
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) 
≈ 18.22
%
KB cells
Human papillomavirus-related endocervical 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) 
0.15
nM
SK-OV-3 cells
Ovarian serous cystadenocarcinoma
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) ≈ 18.22% (Day 22) Positive FOLR1 expression (FOLR1 +++/++)
Method Description
PEG4Mal-DM4 conjugates of the exemplary anti-FOLR1 antibodies were tested using an established xenograft model of KB cells implanted subcutaneous into SCID mice. Mice were randomized by body weight into treatment groups and treated once on day 3 post cell inoculation with 10 mg/kg of one of the conjugates listed above or with PBS only.
In Vivo Model KB CDX model
In Vitro Model Human papillomavirus-related endocervical adenocarcinoma KB cells CVCL_0372
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) 0.15 nM Positive FOLR1 expression (FOLR1 +++/++)
Method Description
FOLR1-expressing SKOV3 cells were incubated with varying concentrations of anti FOLR1 antibodies or their conjugates and processed.
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
References
Ref 1 Folate receptor 1 antibodies and immunoconjugates and uses thereof; 2011-09-01.

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