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Tamoxifen is a selective estrogen receptor modulator (SERM). [ 44] 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. [ 45]
Tamoxifen, a nonsteroidal triphenylethylene antiestrogen and a widely used drug in the treatment of breast cancer. 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 (ER). [ 3] Compared to pure ER agonists - antagonists (e ...
Ongoing areas of clinical research include optimizing adjuvant hormonal therapy in postmenopausal women with breast cancer. Tamoxifen (a SERM) traditionally was the drug treatment of choice, but the ATAC trial (Arimidex, Tamoxifen, Alone or in Combination) showed that in women with localized estrogen receptor-positive breast cancer, women ...
Estrogen deprivation therapy, also known as endocrine therapy, is a form of hormone therapy that is used in the treatment of breast cancer.Modalities include antiestrogens or estrogen blockers such as selective estrogen receptor modulators (SERMs) like tamoxifen, selective estrogen receptor degraders like fulvestrant, and aromatase inhibitors like anastrozole and ovariectomy.
1977 – US FDA approves tamoxifen for metastatic breast cancer only, not widely popular as chemotherapy remains first line of treatment [27] [28] 1981 – American Dr. Bernard Fisher proves lumpectomy is as effective as mastectomy for breast cancer [4] 1989 – US FDA approves Carboplatin, a derivative of cisplatin, for chemotherapy [10]
Tamoxifen is a SERM and is one of the most common and oldest forms of hormone therapy. When breast cancer is found at an early stage or found to be Metastatic breast cancer, tamoxifen can be prescribed to selectively block estrogen's effect on certain cells. SERMs like tamoxifen attach to receptors on the cancer cells which blocks estrogen from ...
Staging breast cancer is the initial step to help physicians determine the most appropriate course of treatment. As of 2016, guidelines incorporated biologic factors, such as tumor grade, cellular proliferation rate, estrogen and progesterone receptor expression, human epidermal growth factor 2 (HER2) expression, and gene expression profiling into the staging system.
Molecular classification of breast cancer from mRNA expression profiles. DNA microarrays have compared normal cells to breast cancer cells and found differences in the expression of hundreds of genes. Although the significance of many of those genetic differences is unknown, independent analyses by different research groups has found that ...
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