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Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology

An open-label study of subdermal implants of estradiol-only versus subdermal implants of estradiol plus nomegestrol acetate: effects on symptom control, lipid profile and tolerability.


PMID 19408176

Abstract

To compare the effects of continuous 17-beta estradiol-only silastic implants with those of continuous 17-beta estradiol plus continuous nomegestrol acetate silastic implants on symptom control, lipid profile and tolerability in postmenopausal women. This was an open-label, parallel-group study. Women with and without uterus and no contraindications to hormone therapy (HT) in this study, we consider as HT the replacement of Estrogens-only and Estrogens + Progestogens Therapy, were enrolled. Each subject was assigned to receive four 17-beta estradiol-only silastic implants (women without uterus), or four 17-beta estradiol plus one nomegestrol acetate silastic implant (women with intact uterus), for 1 year. A total of 40 subjects were enrolled and received, the silastic implants of which 40 (100.0%) subjects completed the study (n = 20, estradiol only; n = 20, estradiol plus nomegestrol acetate). The incidence of postmenopausal symptoms decreased significantly. No significant decreases in total cholesterol (1.3%), low-density lipoprotein cholesterol (1.1%), triglycerides (1.2%) and fasting glucose ((1.3%) serum levels were observed in both groups, whereas high-density lipoprotein (HDL) cholesterol increased significantly (2.8%), during the study in both groups. The incidences of adverse events were similar in both treatment groups. Women treated with 17-beta estradiol-only silastic implants or 17-beta estradiol plus nomegestrol acetate silastic implants showed significant improvement of postmenopausal symptoms, including urogenital and sexual health symptoms and a significant increase in HDL cholesterol and no significant differences in other lipid profiles and tolerability.

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SML0133
Nomegestrol acetate, ≥98% (HPLC)
C23H30O4