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Selective estrogen receptor modulators (SERMs), also known as estrogen receptor agonists/antagonists (ERAAs), [1] [2] are a class of drugs that act on estrogen receptors (ERs). [3] Compared to pure ER agonists – antagonists (e.g., full agonists and silent antagonists ), SERMs are more tissue-specific, allowing them to selectively inhibit or ...
Tamoxifen is a selective estrogen receptor modulator (SERM). [48] Even though it is an antagonist in breast tissue it acts as partial agonist on the endometrium and has been linked to endometrial cancer in some women. Therefore, endometrial changes, including cancer, are among tamoxifen's side effects. [49]
Sivifene (A-007) was initially thought to be a SERM due to its structural similarity to tamoxifen but it was subsequently found not to bind to the estrogen receptor (ER). [8] Tesmilifene (DPPE; YMB-1002, BMS-217380-01) is also structurally related to tamoxifen but similarly does not bind to the ER and is not a SERM. [9] [10]
For women who previously have had breast cancer, it is recommended to first consider other options for menopausal effects, such as bisphosphonates or selective estrogen receptor modulators (SERMs) for osteoporosis, cholesterol-lowering agents and aspirin for cardiovascular disease, and vaginal estrogen for local symptoms. Observational studies ...
It is a third-generation selective estrogen receptor modulator (SERM). [3] Since late 2013 it has had U.S. FDA approval for bazedoxifene as part of the combination drug Duavee in the prevention (not treatment) of postmenopausal osteoporosis. It is also being studied for possible treatment of breast cancer and pancreatic cancer. [4]
Tamoxifen is currently first-line treatment for nearly all pre-menopausal women with hormone receptor-positive breast cancer. [1] Raloxifene is another partial agonist SERM which does not seem to promote endometrial cancer , and is used primarily for chemoprevention of breast cancer in high-risk individuals, as well as to prevent osteoporosis ...
Recently, the subject of using testosterone as another way of managing symptoms, such as loss as sex drive, has come back into the news, as actress Kate Winslet has sung the hormone's praises.
[132] [133] In accordance, antiestrogens like the selective estrogen receptor modulator (SERM) tamoxifen, the ER antagonist fulvestrant, and the aromatase inhibitors (AIs) anastrozole and exemestane are all effective in the treatment of ER-positive breast cancer. [134] [135] [136] Antiestrogens are also effective in the prevention of breast cancer.
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