Not conducted; antibodies not expected to interact with DNA
“No formal genotoxicity studies for axatilimab have been conducted. Since monoclonal antibodies are not expected to interact directly with DNA”
✓ VerifiedFDA multi-discipline review, p. 51Source ↗
Carcinogenicity
Not conducted; rodent studies not relevant as axatilimab is not pharmacologically active in rodents
“Because axatilimab is not active pharmacologically in rodents, conventional carcinogenicity studies in mice or rats are not relevant for axatilimab.”
✓ VerifiedFDA multi-discipline review, p. 52Source ↗
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 dedicated studies; weight-of-evidence (CSF-1/CSF-1R deficiency phenotypes) indicates potential reproductive and embryo-fetal risk
“The mechanism of action of axatilimab, the embryo-lethal and phenotypic effects of CSF-1 and CSF-1R deficiency and the role of CSF-1 and CSF-1R in the reproductive system collectively indicate the potential risk for axatilimab on reproductive and embryo-fetal development.”
✓ VerifiedFDA multi-discipline review, p. 35Source ↗
Safety pharmacology
Incorporated into repeat-dose monkey studies; labored respiration at 30 and 100 mg/kg; no cardiovascular or CNS changes
“In the 26-week toxicology study, labored respiration (audible breathing) was noted in animals in the 30 mg/kg and 100 mg/kg dosing groups. There were no test article-related changes observed in the cardiovascular and central nervous (CNS) systems.”
✓ VerifiedFDA multi-discipline review, p. 34Source ↗
Genotox: Ames
Not conducted (antibody not expected to interact with DNA)
“No formal genotoxicity studies for axatilimab have been conducted. Since monoclonal antibodies are not expected to interact directly with DNA”
✓ VerifiedFDA multi-discipline review, p. 51Source ↗
Genotox: in vitro mammalian
Not conducted (antibody not expected to interact with DNA)
“No formal genotoxicity studies for axatilimab have been conducted. Since monoclonal antibodies are not expected to interact directly with DNA”
✓ VerifiedFDA multi-discipline review, p. 51Source ↗
Genotox: in vivo
Not conducted (antibody not expected to interact with DNA)
“No formal genotoxicity studies for axatilimab have been conducted. Since monoclonal antibodies are not expected to interact directly with DNA”
✓ VerifiedFDA multi-discipline review, p. 51Source ↗
Carcinogenicity model
Not conducted; rodent studies not relevant (no pharmacological activity in rodents)
“Because axatilimab is not active pharmacologically in rodents, conventional carcinogenicity studies in mice or rats are not relevant for axatilimab.”
✓ VerifiedFDA multi-discipline review, p. 52Source ↗
Carcinogenicity timing
Not required (rodent studies not relevant; FDA concurred)
“Because axatilimab is not active pharmacologically in rodents, conventional carcinogenicity studies in mice or rats are not relevant for axatilimab.”
✓ VerifiedFDA multi-discipline review, p. 52Source ↗
hERG / QT
No cardiovascular or CNS changes in repeat-dose monkey studies
“There were no test article-related changes observed in the cardiovascular and central nervous (CNS) systems.”
✓ VerifiedFDA multi-discipline review, p. 34Source ↗