Ames and mouse lymphoma positive only with metabolic activation; negative rat micronucleus and Comet
“Lumateperone was positive for mutagenic potential in the Ames test in the presence of metabolic activation in the TA1537 tester strain and the mouse lymphoma test. Lumateperone was negative for clastogenic activity in the in vivo micronucleus assay in rats and was not genotoxic in the in vivo Comet assay in rats”
✓ VerifiedFDA multi-discipline review, p. 45Source ↗
Carcinogenicity
Lifetime rat and mouse studies: no carcinogenic potential
“Lifetime carcinogenicity studies were conducted in rats and mice, and results showed no carcinogenic potential in either species.”
Impaired male and female rat fertility and estrus irregularities at ~MRHD
“Oral administration of lumateperone to male and female rats adversely affected male and female fertility and caused estrus cycle irregularities at doses approximately equal to the MRHD of 42 mg lumateperone on a mg/m2 basis.”
✓ VerifiedFDA multi-discipline review, p. 45Source ↗
Safety pharmacology
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.
Not genotoxic overall: Ames negative; in vitro chromosome aberration positive without (not with) metabolic activation; rat micronucleus and comet negative