Not conducted with ADC; MMAE Ames and mouse lymphoma negative, rat micronucleus positive (aneugenic)
“MMAE was genotoxic in the rat bone marrow micronucleus study through an aneugenic mechanism.”
✓ VerifiedFDA pharmacology/toxicology review, p. 12Source ↗
Carcinogenicity
Not conducted (not warranted for indication; ICH S9)
“Carcinogenicity studies in animals have not been performed with polatuzumab vedotin or MMAE and are not warranted for the proposed indication.”
✓ VerifiedFDA pharmacology/toxicology review, p. 12Source ↗
Instead of carcinogenicity
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Instead of genotoxicity
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
DRG histopathology
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Reproductive & developmental
No fertility study (ICH S9); MMAE rat EFD embryolethal and teratogenic; testicular toxicity in rat repeat-dose
“A designated fertility study was not conducted with polatuzumab vedotin or MMAE and is not needed for the proposed indication.”
✓ VerifiedFDA pharmacology/toxicology review, p. 12Source ↗
Safety pharmacology
Incorporated into rat and monkey repeat-dose studies; MMAE hERG IC50 >100 uM; no adverse effects
“Safety pharmacology assessments (neurobehavioral, cardiovascular, and respiratory) that were incorporated into the repeat-dose toxicology studies showed no polatuzumab vedotin- or surrogate ADC-induced adverse effects in monkeys.”
✓ VerifiedFDA pharmacology/toxicology review, p. 10Source ↗
Genotox: Ames
MMAE: negative in Ames assay
“MMAE was not mutagenic in the bacterial reverse mutation (Ames) assay or the L5178Y mouse lymphoma forward mutation assay.”
Not conducted with polatuzumab vedotin or MMAE (not warranted for the indication)
“Carcinogenicity studies in animals have not been performed with polatuzumab vedotin or MMAE and are not warranted for the proposed indication.”
✓ VerifiedFDA pharmacology/toxicology review, p. 12Source ↗
Carcinogenicity timing
Not conducted with polatuzumab vedotin or MMAE; not warranted for the indication
“Carcinogenicity studies in animals have not been performed with polatuzumab vedotin or MMAE and are not warranted for the proposed indication.”
✓ VerifiedFDA pharmacology/toxicology review, p. 12Source ↗
hERG / QT
MMAE hERG IC50 >100 µM (no appreciable inhibition)
“MMAE alone did not appreciably inhibit the human ether-à-go-go-related gene (hERG) channel (IC50 > 100 µM) in voltage-clamped human embryonic kidney cells”
✓ VerifiedFDA pharmacology/toxicology review, p. 26Source ↗