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Letrozole, sold under the brand name Femara among others, is an aromatase inhibitor medication that is used in the treatment of breast cancer for post-menopausal women. [ 1 ] It was patented in 1986 and approved for medical use in 1996. [ 4 ]
Additionally, NSAIs that contain 4-pyridylmethyl group is considered more effective than others. [16] Letrozole has a 1,2,4 triazole ring which is important for binding with Fe 2+ in the heme moiety of the aromatase enzyme. Also, the cyano benzyl moiety is significant because it partly imitates the steroid backbone of the natural hormone ...
Ovarian stimulation with the aromatase inhibitor letrozole has been proposed for ovulation induction in order to treat unexplained female infertility. In a multi-center study funded by the National Institute of Child Health and Development, ovarian stimulation with letrozole resulted in a significantly lower frequency of multiple gestation (i.e., twins or triplets) but also a lower frequency ...
Letrozole Exemestane is an irreversible "aromatase inactivator" which is superior to megestrol acetate for treatment of tamoxifen -refractory metastatic breast cancer, and does not appear to have the osteoporosis -promoting side effects of other drugs in this class.
This is a list of chemotherapeutic agents, also known as cytotoxic agents or cytostatic drugs, that are known to be of use in chemotherapy for cancer.This list is organized by type of agent, although the subsections are not necessarily definitive and are subject to revision.
Chemotherapy may be given with a curative intent (which almost always involves combinations of drugs), or it may aim only to prolong life or to reduce symptoms (palliative chemotherapy). Chemotherapy is one of the major categories of the medical discipline specifically devoted to pharmacotherapy for cancer, which is called medical oncology. [1] [2]
Although aromatase inhibitors and antigonadotropins can be considered antiestrogens by some definitions, they are often treated as distinct classes. [9] Aromatase inhibitors and antigonadotropins reduce the production of estrogen, while the term "antiestrogen" is often reserved for agents reducing the response to estrogen.
Adjuvant chemotherapy has been used in malignant melanoma, but there is little hard evidence to use chemotherapy in the adjuvant setting. However, melanoma is not a chemotherapy-resistant malignancy. Dacarbazine, temozolomide, and cisplatin all have a reproducible 10–20% response rate in metastatic melanoma.