General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0WNJFR
ADC Name
JP2024177330A5 18G3-iPr
Synonyms
18G3-iPr;CD123-18G3-iPr
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Organization
Pfizer Inc.
Drug Status
Investigative
Drug-to-Antibody Ratio
2
Antibody Name
18G3
 Antibody Info 
Antigen Name
Interleukin-3 receptor subunit alpha (IL3RA)
 Antigen Info 
Payload Name
iPr-calicheamicin
 Payload Info 
Linker Name
Undisclosed
General Information of The Activity Data Related to This ADC
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Standard Type Value Units Cell Line Disease Model
Half Maximal inhibitory Concentration (lC50) 
0.05075
ng/mL
CVCL_2119
Adult acute myeloid leukemia
Half Maximal inhibitory Concentration (lC50) 
0.125
ng/mL
CVCL_0064
Childhood acute monocytic leukemia
Full List of Activity Data of This Antibody-drug Conjugate
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) 0.05075 ng/mL High CD123 expression (CD123+++)
Method Description
MOLM13 cell line cells were incubated with ADC or control at the following doses: 100 ng/ml, 25 ng/ml, 6.25 ng/ml, 1.56 ng/ml, 0.39 ng/ml, 0.09 ng/ml, 0.024 ng/ml, 0.006 ng/ml, 0.002 ng/ml and 0.0004 ng/ml. for 96 hours. Cell viability was measured with CelltiterGlo (Promega, Madison, WI), and luminescence was determined using a Victor plate reader (Perkin Elmer, Waltham, MA). 50% inhibition value (IC50) calculations were generated using XLfit (IDBS, Boston, MA) 4 parameter curve fit.

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In Vitro Model Adult acute myeloid leukemia MOLM-13 cells CVCL_2119
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) 0.125 ng/mL High CD123 expression (CD123+++)
Method Description
MV4-11 cell line cells were incubated with ADC or control at the following doses: 100 ng/ml, 25 ng/ml, 6.25 ng/ml, 1.56 ng/ml, 0.39 ng/ml, 0.09 ng/ml, 0.024 ng/ml, 0.006 ng/ml, 0.002 ng/ml and 0.0004 ng/ml. for 96 hours. Cell viability was measured with CelltiterGlo (Promega, Madison, WI), and luminescence was determined using a Victor plate reader (Perkin Elmer, Waltham, MA). 50% inhibition value (IC50) calculations were generated using XLfit (IDBS, Boston, MA) 4 parameter curve fit.

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In Vitro Model Childhood acute monocytic leukemia MV4-11 cells CVCL_0064
References
Ref 1 JP2024177330A5 - Google Patents