“Genetic toxicology studies are not needed to support the development of nemolizumab, per the International Council for Harmonisation (ICH) S6(R1) guidance”
Not conducted; weight-of-evidence assessment; no proliferative lesions or immunosuppression in 6-month monkey study
“There was no evidence of tissue proliferation (i.e., hyperplasia, preneoplastic lesions) or immunosuppression in the 6-month repeat-dose subcutaneous toxicity study in monkeys.”
Monkey ePPND: no maternal or embryofetal toxicity up to 25 mg/kg; increased early postnatal death at 25 mg/kg (3 vs 1 control)
“Early postnatal death occurred in the offspring of one control monkey and 3 monkeys at 25 mg/kg (36 times the MRHD for PN and 50 times for AD, based on AUC comparison).”
Incorporated into repeat-dose monkey studies: no effects on ECG, blood pressure, respiration or neurobehavior
“Safety pharmacology parameters were studied in GLP toxicity studies in cynomolgus monkeys, which is in line with ICH S6(R1). No significant effects on the cardiovascular system (ECG and/or blood pressure) were observed in the 3- and/or 6-month toxicity studies”