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Estradiol and dydrogesterone. A review of their combined use as hormone replacement therapy in postmenopausal women.

Abstract：

:The focus of this review is hormone replacement therapy (HRT) with continuous oral 17 beta-estradiol (herein referred to as estradiol) 2 mg/day plus sequential oral dydrogesterone 10 or 20 mg/day for 14 days of each 28-day cycle. According to data from nonblind trials, this regimen relieves climacteric symptoms, preserves bone mineral density (BMD) and improves the cardiovascular risk profile in postmenopausal women. Increases in mean BMD in the lumbar spine of 2.4 to 6.4% have been reported after 2 years' treatment. The effect on BMD of oral estradiol plus sequential dydrogesterone was similar to that achieved with transdermal estradiol plus sequential oral dydrogesterone or with oral tibolone. Good protection against endometrial hyperplasia and cancer is provided by the dydrogesterone component. Cyclical vaginal bleeding occurs in most treatment cycles, but is generally light to moderate and the time of onset is highly predictable. Noncyclical bleeding occurs in < 10% of cycles. Mean serum high density lipoprotein-cholesterol levels are increased and low density lipoprotein-cholesterol levels are decreased during treatment with oral estradiol plus sequential dydrogesterone. Insulin resistance appears to be improved. Blood pressure and bodyweight are not generally affected to any clinically important extent. Serum homocysteine levels were reported to decrease in postmenopausal women with high pretreatment levels. No data are available on the general tolerability profile of this regimen. However, the adverse events that most commonly led to discontinuation of treatment in clinical trials were typical of those associated with HRT, including vaginal bleeding headache, bloating and breast tenderness. Although the risk of breast cancer has not been specifically assessed for this regimen, it is unlikely to carry a greater risk than that of other HRT regimens. In summary available data indicate that treatment with continuous oral estradiol plus sequential dydrogesterone is effective in relieving climacteric symptoms and preserving BMD in postmenopausal women. The dydrogesterone component provides good endometrial protection and cycle control without negating the cardiovascular benefits of estradiol. Comparisons with other standard HRT regimens and long term data (including clinical end-points) are needed. In the meantime, this regimen can be regarded as an acceptable HRT option.

journal_name

Drugs Aging

journal_title

Drugs & aging

authors

Foster RH,Balfour JA

doi

10.2165/00002512-199711040-00006

subject

Has Abstract

pub_date

1997-10-01 00:00:00

pages

309-32

issue

eissn

1170-229X

issn

1179-1969

journal_volume

pub_type

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Estradiol and dydrogesterone. A review of their combined use as hormone replacement therapy in postmenopausal women.