REPRODUCTIVE AND DEVELOPMENTAL TOXICITY STUDIES OF FUT-187 (III) : Postnatal Study in Rat F₁ Offspring from Dams Treated Orally with FUT-187 : During the Period of Fetal Organogenesis

Abstract

A postnatal study of F₁ offspring exposed to FUT-187 during fetal organogenesis was carried out using Crj: CD rat. FUT-l87 was dosed by gavage at 0, 50, 200 and 800 mg/kg/day from day 7 to 17 of gestation. All pregnant rats were allowed to deliver newborns, and F₁ offspring were examined for development indices and reproduction and learning ability. Effects at 800 mg/kg included temporary salivation, body weight depression and decreased food intake. There were no adverse effects on delivery and lactation and no significant changes on neonatal development, growth, reproduction and learning ability in the F₁ offspring. These results indicate that the no effect dose level of FUT-187 is 200 mg/kg/day in dams, and 800 mg/kg/day in offspring.