“Genotoxicity and stand-alone safety pharmacology studies were not conducted.”
✓ VerifiedFDA multi-discipline review, p. 35Source ↗
Carcinogenicity
Not conducted; weight-of-evidence (chronic surrogate study, literature, clinical data) found no concrete reason for concern; ECAC concurred
“there are no concrete reasons to believe that inhibition of IL36R by spesolimab would lead to carcinogenicity. The Executive Carcinogenicity Assessment committee (ECAC) concurred with this conclusion.”
✓ VerifiedFDA multi-discipline review, p. 36Source ↗
Reproductive & developmental
Mouse FEED, EFD and PPND with surrogate (up to 50 mg/kg): no adverse effects on fertility, embryofetal or postnatal development
“The maternal and developmental NOAELs were both 50 mg/kg/dose.”
✓ VerifiedFDA multi-discipline review, p. 36Source ↗
Safety pharmacology
No stand-alone or embedded studies; no respiratory or neurobehavioral signs in mouse studies up to 26 weeks
“However, no treatment-related organ toxicities or clinical signs indicative of respiratory or neurobehavioral effects were observed in mice after intravenous administration of the surrogate antibody BI 674304 for up to 26 weeks”
✓ VerifiedFDA multi-discipline review, p. 37Source ↗