Monkey ePPND: severe developmental toxicity at 50 mg/kg with 100% offspring mortality by postnatal day 6
“Severe developmental toxicity occurred at 50 mg/kg (approximately nine-times the maximum clinical exposure based on AUC), with 100% mortality of all spontaneously delivered offspring by postnatal Day 6.”
Safety pharmacology studies conducted as part of the nonclinical program; results not detailed
“The safety evaluation of garetosmab (REGN2477) was conducted consistent with the nonclinical requirement for novel biologics and included a series of primary, secondary, and safety pharmacology studies”