|Chemical and physical data|
|Molar mass||525.818 g/mol|
|3D model (JSmol)|
ICI-164384, also known as N-n-butyl-N-methyl-11-(3,17β-dihydroxyestra-1,3,5(10)-trien-7α-yl)undecanamide, is a steroidal antiestrogen and a synthetic derivative of estradiol which is closely related to fulvestrant and was never marketed. It is a silent antagonist of the estrogen receptor (ER) with no intrinsic estrogenic activity and hence is a pure antiestrogen, unlike selective estrogen receptor modulators (SERMs) like tamoxifen. The drug was under development by AstraZeneca for the treatment of breast cancer but was discontinued in favor of fulvestrant, which is very similar to ICI-164384 but is more potent in comparison.
- Edward J. Pavlik (6 December 2012). Estrogens, Progestins, and Their Antagonists: Health Issues. Springer Science & Business Media. pp. 133–. ISBN 978-1-4612-4096-9.
- A. Howell (15 October 1990). The Role of Antihormones. CRC Press. pp. 119–124. ISBN 978-1-85070-295-5.
- https://adisinsight.springer.com/drugs/800000792[permanent dead link]
- William R. Miller; James N. Ingle (8 March 2002). Endocrine Therapy in Breast Cancer. CRC Press. pp. 64–. ISBN 978-0-203-90983-6.
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