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Chemical compound From Wikipedia, the free encyclopedia
Inocoterone acetate (USAN ) (developmental code names RU-38882, RU-882) is a steroid-like nonsteroidal antiandrogen (NSAA) that was developed for topical administration to treat acne but was never marketed.[1][2] It is the acetate ester of inocoterone, which is less potent in comparison.[3] Inocoterone acetate is actually not a silent antagonist of the androgen receptor but rather a weak partial agonist, similarly to steroidal antiandrogens like cyproterone acetate.[4]
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Other names | RU-38882; RU-882; 2,5-Seco-A-dinorestr-9-en-17β-ol-5-one 17β-acetate |
Drug class | Nonsteroidal antiandrogen |
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Formula | C18H26O3 |
Molar mass | 290.403 g·mol−1 |
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Inocoterone acetate was investigated for the treatment of acne but showed only modest (albeit statistically significant) efficacy in clinical trials.[2][5][6] A reduction of 26% of lesions was observed in males treated with the drug after 16 weeks (~3.7 months).[6][1] However, this is notably far less than that achieved with other agents such as benzoyl peroxide or antibiotics, which produce 50–75% reductions within 2 months.[1] Similar poor results with the topical route have disappointingly been found for other antiandrogens, such as cyproterone acetate and spironolactone.[1] Similarly to rosterolone, inocoterone acetate has no systemic antiandrogenic activity when applied systemically.[7]
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