DA-125, a new anthracycline antitumor antibiotic, was at dose levels of 0, 0.03, 0.1 and 0.3 mg/kg/day administered intravenously to Sprague-Dawley male rats from premating to mating period and to females from premating to early gestation period. Effects of test agent on general findings and reproductive performance of parent animals and embryonic development were examined. No treatment-related changes in clinical signs, body weight, food consumption and necropsy findings were observed in all groups of both sexes. At 0.3 mg/kg, a decrease in the weight of spleen was found only in male rats. Mating performance and fertility of parent animals were not adversely affected by all doses tested. Fl fetuses showed no changes related to treatment of DA-125, except that at 0.3 mg/kg, an increase in the resorption rate was seen. The results show that the no effect dose levels (NOELS) for general toxicity of parent animals and fetal development are 0.1 mg/kg/day and NOELS for reproductive capability are over 0.3 mg/kg/day.
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