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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 ]
The FDA granted it Accelerated Approval in Feb 2015. [15] Ribociclib (LEE011, trade names Kisqali and Kryxana), is US FDA approved in combination with letrozole for treatment of breast cancer in patients with HR-positive, HER2-negative advanced metastatic breast cancer. [16]
Additionally, the FDA approved the ribociclib and letrozole co-pack for the same indication. [ 12 ] In November 2024, the European Commission expanded the indication of ribociclib, in combination with an aromatase inhibitor, for the adjuvant treatment of adults with hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2 ...
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 ...
Among all aromatase inhibitors, Letrozole is commonly used for improving female fertility. It works by inhibiting aromatase which is an enzyme that catalyses the conversion of androstenedione and testosterone to estrogen by hydroxylation. Hence, Letrozole inhibits the synthesis of estrogen. [18]
In early 2023, the U.S. Food and Drug Administration (FDA) granted accelerated approval to a new Alzheimer’s drug called Leqembi. (Biogen, a biotechnology company, and Eisai, a pharmaceutical ...
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