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Trodelvy: genotox, carcinogenicity and repro: done or skipped?

sacituzumab govitecan · Trop-2
Genotoxicity
Not conducted with ADC; SN-38 Ames negative, in vitro micronucleus positive (clastogenic)
“SN-38 was negative for mutagenicity in a bacterial reverse mutation (Ames) test but was clastogenic in the in vitro mammalian cell micronucleus test.”
✓ VerifiedFDA multi-discipline review, p. 176Source ↗
Carcinogenicity
Not conducted (advanced cancer, ICH S9)
“No carcinogenicity studies were conducted or warranted to support this NDA, as the proposed indication was for advanced cancer.”
✓ VerifiedFDA multi-discipline review, p. 177Source ↗
Reproductive & developmental
Not conducted (ICH S9); SN-38 genotoxic so embryo-fetal toxicity expected; female repro organ findings in monkey
“No embryo-fetal developmental toxicology studies were conducted or warranted to support this BLA submission, based on ICH S9.”
✓ VerifiedFDA multi-discipline review, p. 176Source ↗
Safety pharmacology
Incorporated into repeat-dose monkey studies; no CNS, CV or respiratory findings; no hERG
“Safety pharmacology endpoints were assessed in the repeat-dose toxicity studies in monkeys. There were no sacituzumab govitecan-related findings on the central nervous, cardiovascular, or respiratory systems.”
✓ VerifiedFDA multi-discipline review, p. 176Source ↗

Same question, other ADCs

Adcetris

brentuximab vedotin · CD30
Conducted on MMAE: Ames and mouse lymphoma negative; rat micronucleus positive (aneugenic)

Besponsa

inotuzumab ozogamicin · CD22
Conducted: calicheamicin positive in Ames and in vitro micronucleus; ADC clastogenic in mouse micronucleus

Datroway

datopotamab deruxtecan · Trop-2
Not conducted with ADC; DXd Ames negative, clastogenic in vitro chromosome aberration and in vivo rat micronucleus

Decnupaz

pivekimab sunirine · CD123
Not conducted with ADC (ICH S9); FGN849 positive in Ames TA102, in vitro and in vivo micronucleus

Elahere

mirvetuximab soravtansine · FRα
Not conducted with ADC; DM4 and S-methyl-DM4 Ames negative, rat bone marrow micronucleus positive

Emrelis

telisotuzumab vedotin · c-Met
Not conducted with ADC; MMAE aneugenic (positive rat micronucleus), Ames and mouse lymphoma negative

Enhertu

fam-trastuzumab deruxtecan · HER2
Not conducted with ADC; DXd clastogenic (rat micronucleus, CHL chromosome aberration), Ames negative

Kadcyla

ado-trastuzumab emtansine · HER2
Conducted on DM1: Ames negative; rat micronucleus positive (aneugenic/clastogenic); monkey micronucleus inconclusive

Mylotarg

gemtuzumab ozogamicin · CD33
Conducted: ADC clastogenic in mouse micronucleus; free calicheamicin DMH mutagenic and clastogenic in vitro

Padcev

enfortumab vedotin · Nectin-4
Not conducted with ADC; MMAE Ames and mouse lymphoma negative, rat micronucleus positive (aneugenic)

Polivy

polatuzumab vedotin · CD79b
Not conducted with ADC; MMAE Ames and mouse lymphoma negative, rat micronucleus positive (aneugenic)

Tivdak

tisotumab vedotin · Tissue factor
Not conducted with ADC; MMAE: Ames and mouse lymphoma negative, rat micronucleus positive (aneugenic)

Zynlonta

loncastuximab tesirine · CD19
Not conducted with ADC; SG3199 clastogenic in vitro (micronucleus, chromosome aberration); Ames not assessable (cytotoxicity)

Summary across all 14 ADCs →