Vaginal bleeding/spotting with conjugated estrogens/bazedoxifene, conjugated estrogens/medroxyprogesterone acetate, and placebo
2018
ABSTRACTObjective: In the 1-year phase 3 Selective estrogens, Menopause, And Response to Therapy-5 trial, cumulative amenorrhea rates with conjugated estrogens/bazedoxifene (CE/BZA) were similar to placebo and higher than with conjugated estrogens/medroxyprogesterone acetate (CE/MPA). This post hoc analysis reports bleeding/spotting rates in 4-week intervals (cycles) and 3-month intervals (quarters) with these therapies and the percentage of cases attributable to spotting only.Methods: Generally healthy postmenopausal women with menopausal symptoms recorded vaginal bleeding/spotting in daily diaries while receiving CE 0.45 mg/BZA 20 mg, CE 0.625 mg/BZA 20 mg, CE 0.45 mg/MPA 1.5 mg, or placebo.Results: A total of 1596 women in the modified intent-to-treat population contributed data. Incidence of bleeding/spotting was significantly (p < 0.001) lower with CE 0.45 mg/BZA 20 mg (0.54‒4.44%), CE 0.625 mg/BZA 20 mg (1.26‒5.02%), and placebo (1.55‒4.82%) compared with CE 0.45 mg/MPA 1.5 mg (8.81‒25.63%) in all 4...
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