• Biomolecules & Therapeutics
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• v.10 no.2
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• pp.117-123
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• 2002

CJ-10882, (E)-[(3-Cyclopentyloxy-4-methoxyphenyl)methylene]hydrazine-carboxamide, is a newly developed type IV phosphodiesterase isozyme (PDE IV) inhibitor. To investigate the subacute toxic effects of CJ-10882, it was administered to both male and female dogs at 0, 25, 50, 100 or 200 mg/kg/day orally for up to 2 weeks. During the test period, clinical signs, mortality, body weight, food consumption, ophthalmoscopy, urinalysis, hematology, serum biochemistry, gross finding, organ weight, and histopathology were evacuated. Several clinical signs were observed in treated dogs at above 25 mg/kg, including salivation and vomiting. A reduction in the body weight was observed in both sexes at above 50 mg/kg. There were no treatment-related effects on mortality, ophthalmoscopy, urinalysis, hematology, sect biochemistry, necropsy findings, and histopathology in any treatment group. The results of this study demonstrate that CJ-10882, a selective Inhibitor of the type IV class of PDE, may cause effects on gastrointestinal tract and salivary glands. Therefore, these organs should be closely examined in studies with other PDE IV inhibitors.

• Proceedings of the Korean Society of Toxicology Conference
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• 2003.05a
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• pp.43-44
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• 2003

The subacute toxicity and toxicokinetics of a type IV phosphodiesterase inhibitor, CJ-10882, were evaluated after single (on the 1st day) and 4-week (on the 27th day) oral administration of the drug, in doses of 0 (to serve as a control), 2, 10 and 50 mg/kg/d, to male and female dogs (n = 3 for male and female dogs for each dose). During the test period, clinical signs, mortality, body weight, food consumption, ophthalmoscopy, urinalysis, hematology, serum biochemistry, gross findings, organ weight and histopathology were examined.(omitted)

• Proceedings of the Korea Environmental Mutagen Society Conference
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• 2003.05a
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• pp.43-44
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• 2003

• Toxicological Research
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• v.18 no.3
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• pp.241-248
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• 2002

The present study was conducted to investigate the potential subacute toxicity of CJ-10882 by a 4-week repeated oral dose in dogs. The test article was administered once dally by gavage to dogs at dose levels of 0, 2, 10, and 50 mg/kg/day for 4 weeks. During the test period, clinical signs, mortality, body weights, food consumption, ophthalmoscopy, urinalysis, hematology, serum biochemistry, gross finding, organ weight, and histopathology were evaluated. Several clinical sign were observed in treated dogs at 50 mg/kg, including salivation and vomiting. Increase in the serum level of ALT and albumin observed in the female 50 mg/kg group was considered as a toxic effect related to the test article since the histopathological change in Liver was accompanied. There were no treatment-related effects on mortality, food and water consumption, ophthalmoscopy, urinalysis, hematology, serum biochemistry, necropsy findings and organ weights in any treatment group. Based on these results, target organ was not observed and the no-observed-adverse-effect level (NOAEL) was 10 mg/kg/day and the absolute toxic dose was 50 mg/kg for both male and female dogs.