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  • Title: Bazedoxifene/conjugated estrogens for menopausal symptom treatment and osteoporosis prevention.
    Author: Pinkerton JV, Pickar JH, Racketa J, Mirkin S.
    Journal: Climacteric; 2012 Oct; 15(5):411-8. PubMed ID: 22853444.
    Abstract:
    Postmenopausal women with vasomotor and vaginal symptoms are commonly treated with estrogens or combined estrogen/progestin therapy (hormone therapy). However, hormone therapy is associated with some safety and tolerability concerns and its benefit/risk profile may vary for women based on their time since menopause. The tissue selective estrogen complex (TSEC) pairs a selective estrogen receptor modulator with one or more estrogens, with the goal of relieving menopausal symptoms and preserving bone mineral density without stimulating the breast or endometrium. Bazedoxifene/conjugated estrogens (BZA/CE) is the first TSEC in clinical development. BZA 20 mg/CE 0.45 and 0.625 mg have been shown in phase-3 clinical trials to significantly improve hot flushes and vulvar/vaginal atrophy measures in symptomatic postmenopausal women and to prevent bone loss in postmenopausal women at risk for osteoporosis while ensuring endometrial safety. These doses of BZA/CE have also demonstrated significant improvements in quality-of-life scores, sleep parameters, and treatment satisfaction compared with placebo. BZA 20 mg/CE 0.45 and 0.625 mg showed high cumulative rates of amenorrhea and low rates of breast pain, similar to those with placebo. The favorable treatment effects seen with BZA/CE were generally consistent in women < 5 or ≥ 5 years since menopause. Based on its demonstrated efficacy and safety in women both closer to or further from menopause, BZA/CE may be an appropriate alternative to hormone therapy for the treatment of menopausal symptoms and the prevention of osteoporosis.
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