Assessment of oral toxicity and safety of 9-cis-UAB30, a potential chemopreventive agent, in rat and dog studies.
2011
9-cis-UAB30 is a potential chemopreventative agent that has been shown to be effective on many different types of tumors. The safety and toxicity of 9-cis-UAB30 had not been previously established. These studies were conducted to evaluate the potential toxicity and pharmacokinetics in a rodent and a nonrodent species for the purpose of investigational new drug submission. Oral gavage administration of 9-cis-UAB30 at the doses 0, 3, 15, and 100 mg/kg/day to CD® rats for 28 days showed a dose-dependent (although not dose-proportional) increase in plasma drug levels in week 4. The liver was the target organ for toxicity of 9-cis-UAB30. Hepatomegaly along with increases in serum aspartate-aminotransferase and alkaline-phosphatase levels were seen in rats. Moderate hypoalbuminemia and hyperglobulinemia resulted in a decreased albumin/globulin ratio. Histopathology revealed hepatocellular change consistent with hepatic glycogen deposition. Toxicity studies in dogs did not show treatment-related toxicity at dose...
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