Not conducted; weight-of-evidence: unlikely carcinogenic concern, 2-year rat study not useful
“Based on the WoE provided by the Applicant, the Division agreed that marstacimab is unlikely to pose a significant carcinogenicity safety concern for humans and therefore considered a 2-year study in rats unlikely to provide additional useful information.”
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
Male rat FEED: no adverse effects at 1000 mg/kg/week (>200x MRHD exposure)
“The study identified no adverse effects at 1000 mg/kg/week (i.e., the no observed adverse effect level (NOAEL), which represented exposure >200-times the clinical exposure at the MRHD).”
Incorporated into repeat-dose monkey study; no respiratory, neurological or cardiovascular effects at IV 30-500 or SC 90 mg/kg/week
“Intravenous administration of marstacimab at doses ranging from 30 to 500 mg/kg/week and SC administration of 90 mg/kg/week to monkeys had no effect on respiratory, neurological, or cardiovascular parameters.”
Not conducted; weight-of-evidence carcinogenicity assessment (2-year rat study judged not useful)
“Based on the WoE provided by the Applicant, the Division agreed that marstacimab is unlikely to pose a significant carcinogenicity safety concern for humans and therefore considered a 2-year study in rats unlikely to provide additional useful information.”
Not required; weight-of-evidence accepted, 2-year rat study not warranted
“Based on the WoE provided by the Applicant, the Division agreed that marstacimab is unlikely to pose a significant carcinogenicity safety concern for humans and therefore considered a 2-year study in rats unlikely to provide additional useful information.”
No hERG assay; no cardiovascular, respiratory or neurological effects in monkeys at IV 30-500 or SC 90 mg/kg/week
“Intravenous administration of marstacimab at doses ranging from 30 to 500 mg/kg/week and SC administration of 90 mg/kg/week to monkeys had no effect on respiratory, neurological, or cardiovascular parameters.”