Clinical data
ATC code None
CAS Number 77016-85-4
PubChem (CID) 9904788
ChemSpider 8080442
Chemical and physical data
Formula C21H26O2
Molar mass 310.430 g/mol
3D model (Jmol) Interactive image

Plomestane (INN, USAN) (former developmental code name MDL-18,962), also known as propargylestrenedione (PED), as well as 10-propargylestr-4-ene-3,17-dione, is a steroidal, irreversible aromatase inhibitor which was under development by Marion Merrell Dow/Hoechst Marion Russell (now Hoechst AG) as an antineoplastic agent for the treatment of breast cancer.[1][2][3][4][5] It was found to be effective in preclinical studies and was also found to produce few adverse effects in human clinical trials, significantly reducing estrogen levels with a single administration.[5] However, development of the drug for clinical use was halted due to "technical issues" and it was never marketed.[6]

Plomestane has weak androgenic properties.[5]

See also


  1. F.. Macdonald (1997). Dictionary of Pharmacological Agents. CRC Press. p. 1635. ISBN 978-0-412-46630-4. Retrieved 19 May 2012.
  2. Dr. Ian Morton; Ian K. M. Morton; Judith M. Hall; Dr. Judith Hall (1999). Concise Dictionary of Pharmacological Agents: Properties and Synonyms. Springer. p. 227. ISBN 978-0-7514-0499-9. Retrieved 20 May 2012. Cite uses deprecated parameter |coauthors= (help)
  3. Bentham Science Publishers (June 1995). Current Pharmaceutical Design. Bentham Science Publishers. p. 45. Retrieved 20 May 2012.
  4. Richard B. Kreider; Brian C. Leutholtz; Frank I. Katch; Victor L. Katch (2009). Exercise and Sport Nutrition. Exercise & Sport Nutrition. p. 350. ISBN 978-0-9742965-6-2. Retrieved 20 May 2012. Cite uses deprecated parameter |coauthors= (help)
  5. 1 2 3 Kelloff GJ, Lubet RA, Lieberman R, et al. (January 1998). "Aromatase inhibitors as potential cancer chemopreventives". Cancer Epidemiology, Biomarkers & Prevention. 7 (1): 65–78. PMID 9456245.
  6. Carmen Avendaño; J. Carlos Menéndez (4 June 2008). Medicinal Chemistry of Anticancer Drugs. Elsevier. p. 69. ISBN 978-0-444-52824-7. Retrieved 20 May 2012.

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