The effects of tamoxifen treatment on the endometrium

Y. Daniel, M. Inbar, A. Bar-Am, M. R. Peyser, J. B. Lessing*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

Objective: To investigate the association between tamoxifen and endometrial cancer. Background: Tamoxifen is a nonsteroidal antiestrogenic drug that has been used successfully for 15 years in the treatment of all stages of breast carcinoma. In light of the positive results, several studies are now being conducted to test prolonged tamoxifen treatment as a prophylaxis against breast cancer in high-risk women. Although tamoxifen was thought to have only a few side effects, reports indicate that it is associated with an increased incidence of proliferative and neoplastic changes in the endometrium. As the current trend is to administer tamoxifen for prolonged periods and for more indications, the detrimental effects on the endometrium have vast implications. Methods: Review of the current literature. Results: Tamoxifen treatment is associated with an increased incidence of proliferative and neoplastic changes in the endometrium, with a 1.3 to 7.5 relative risk of developing endometrial carcinoma. Conclusions: The results of tamoxifen treatment in breast carcinoma override the risk of developing endometrial carcinoma. Any vaginal bleeding in women treated with tamoxifen should be investigated carefully and promptly. In the future it may be necessary to advise these women to undergo routine uterine cavity examination.

Original languageEnglish
Pages (from-to)1083-1089
Number of pages7
JournalFertility and Sterility
Volume65
Issue number6
DOIs
StatePublished - 1996
Externally publishedYes

Keywords

  • Tamoxifen
  • breast carcinoma
  • endometrial carcinoma
  • endometrium

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