Clinical data
Routes of
Oral, topical
ATC code None
CAS Number 89672-11-7
PubChem (CID) 55994
ChemSpider 50555
Chemical and physical data
Formula C16H28O2
Molar mass 252.39232 g/mol
3D model (Jmol) Interactive image

Cioteronel (INN, USAN) (developmental code name CPC-10997; former tentative brand names Cyoctol, Ethocyn, X-Andron) is a non-steroidal antiandrogen that was never marketed.[1][2][3] It was under development over the course of 1989 to 2001 for the topical treatment of androgenetic alopecia (male pattern baldness) and acne and for the oral treatment of benign prostatic hyperplasia; it reached phase III clinical trials for acne and phase II studies for androgenetic alopecia, but was ultimately discontinued due to poor efficacy.[3][4]

See also


  1. C.R. Ganellin; David J. Triggle (21 November 1996). Dictionary of Pharmacological Agents. CRC Press. pp. 570–. ISBN 978-0-412-46630-4.
  2. Daniel Lednicer (21 November 1994). The Organic Chemistry of Drug Synthesis. John Wiley & Sons. pp. 11–. ISBN 978-0-471-58959-4.
  3. 1 2 Tiwari, Atul; Krishna, N S; Nanda, Kamna; Chugh, Anita (2005). "Benign prostatic hyperplasia: an insight into current investigational medical therapies". Expert Opinion on Investigational Drugs. 14 (11): 1359–1372. doi:10.1517/13543784.14.11.1359. ISSN 1354-3784.

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