Abstract
OBJECTIVE: To compare the effect of tibolone to conjugated estrogens with medroxyprogesterone-acetate (CEE + MPA) on breast density, as a predictor for breast cancer risk, in women with a high risk of breast and ovarian cancer.
METHODS: Women aged 30-50 (N = 114) who had undergone risk-reducing salpingo-oophorectomy (RRSO) were randomized to tibolone or CEE + MPA.
RESULTS: Breast density decreased 46% after RRSO in untreated women, 39% after treatment with tibolone, and 17% after treatment with CEE + MPA; the decrease in breast density after CEE + MPA was significantly different compared with that of untreated women (P = 0.017).
CONCLUSIONS: A decline in breast density is seen after premenopausal RRSO despite the use of both CEE + MPA or tibolone, although lower breast density is seen after tibolone use.
Original language | English |
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Pages (from-to) | 1307-1312 |
Number of pages | 6 |
Journal | Menopause |
Volume | 28 |
Issue number | 11 |
DOIs | |
Publication status | Published - 9 Aug 2021 |