What are the ASCO recommendations for use of exemestane in breast cancer risk reduction?

Updated: Feb 04, 2021
  • Author: Pavani Chalasani, MD, MPH; Chief Editor: John V Kiluk, MD, FACS  more...
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Exemestane is not FDA approved for breast cancer risk reduction. However, ASCO guidelines recommend that it should be discussed as an alternative to tamoxifen and/or raloxifene to reduce the risk of invasive BC, specifically ER-positive BC, in postmenopausal women age ≥ 35 years with a 5-year projected absolute BC risk ≥ 1.66% or with LCIS or atypical hyperplasia. It should not be used for BC risk reduction in premenopausal women. Exemestane is given in a dosage of 25 mg per day orally for 5 years. [177]

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