26-week Tg.rasH2 mouse study (PMR at FDA approval); no increase in neoplasms
“In a 26-week carcinogenicity study in male and female Tg.rasH2 mice, subcutaneous administration of eplontersen (0, 250, 500, or 1500 mg/kg) monthly for 26 weeks resulted in no increase in neoplasms.”
Combined fertility/EFD study in mouse (with surrogate); no adverse effects; no 2nd species, PPND or juvenile
“Potential effect of eplontersen on embryo-foetal development in a second species, pre- and post-natal development or juvenile toxicity were not investigated.”
Single ascending-dose SC study in monkeys (CNS, CV, respiratory) plus in vitro hERG; no effects
“Safety pharmacology studies did not indicate any adverse effects on CNS, cardiovascular, or respiratory endpoints in male cynomolgus monkeys administered a single ascending dose of eplontersen of up to 24 mg/kg by SC injection.”