|Chemical and physical data|
|Molar mass||387.5139 g/mol|
|3D model (Jmol)|
|(what is this?)|
Afimoxifene, also known as 4-hydroxytamoxifen (4-OHT, 4-HT, OHTAM, others), is a selective estrogen receptor modulator (SERM) of the triphenylethylene group and the major active metabolite of tamoxifen. The drug is under development by Ascend Therapeutics under the tentative trademark TamoGel as a topical gel for the treatment of cyclical mastalgia (breast pain). It has completed a phase II clinical trial for this indication, but further studies are required before afimoxifene can be approved for this indication and marketed.
A study in France on 55 women showed that rubbing afimoxifene on the skin was as effective as oral tamoxifen at slowing breast cancer growth. A United States trial will compare 6 weeks use before breast cancer surgery. Skin application can reduce systemic levels by a factor of nine and this is expected to reduce the unpleasant side-effects of tamoxifen.
- Droloxifene (3-hydroxytamoxifen)
- Endoxifen (N-desmethyl-4-hydroxytamoxifen)
- Norendoxifen (N-didesmethyl-4-hydroxytamoxifen)
- "Statement on a nonproprietary name adopted by the USAN council: Afimoxifene" (PDF). American Medical Association. Retrieved 2008-03-26.
- Desta Z, Ward BA, Soukhova NV, Flockhart DA (2004). "Comprehensive evaluation of tamoxifen sequential biotransformation by the human cytochrome P450 system in vitro: prominent roles for CYP3A and CYP2D6". J Pharmacol Exp Ther. 310 (3): 1062–1075. PMID 15159443. doi:10.1124/jpet.104.065607.
- Ismail Jatoi; Achim Rody (16 November 2016). Management of Breast Diseases. Springer. pp. 77–. ISBN 978-3-319-46356-8.
- Mansel R, Goyal A, Nestour EL, Masini-Etévé V, O'Connell K (2007). "A phase II trial of Afimoxifene (4-hydroxytamoxifen gel) for cyclical mastalgia in premenopausal women". Breast Cancer Res. Treat. 106 (3): 389–397. PMID 17351746. doi:10.1007/s10549-007-9507-x.
- Alice C. Levine (3 October 2011). Hormones and Cancer: Breast and Prostate, An Issue of Endocrinology and Metabolism Clinics of North America,. Elsevier Health Sciences. pp. 271–. ISBN 1-4557-1239-6.
- Sushil K. Khetan (23 May 2014). Endocrine Disruptors in the Environment. Wiley. pp. 104–. ISBN 978-1-118-89115-5.
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