Hormonal profile, endometrial histology and ovarian ultrasound assessment during 1 year of nomegestrol acetate implant (Uniplant)

Human Reproduction
L DevotoE Coutinho

Abstract

The present study assesses the endocrinological, endometrial histology and vaginal ultrasound profiles of nomegestrol acetate subdermal implant users at varying times after insertion. Follicle stimulatory hormone, luteinizing hormone, oestradiol, progesterone, vaginal ultrasound assessment of the ovaries and the histological dating of the endometrium were serially assessed for a period of 50 days immediately after the insertion, and after at 6 months and 12 months of use. The endocrinological results of this prospective observational clinical trial indicated that 75% of the cycles across the study period in Uniplant users were anovulatory, 63% showing development of a persistent non-luteinized follicle. Anovulatory cycles devoid of follicular development were seen primarily in the first months after Uniplant insertion. Ovulatory cycles represented 25% of the Uniplant cycles. Inadequate luteal phase or disregulation of follicular growth was a common feature of ovulatory cycles. In conclusion, these findings suggest that the contraceptive mechanisms of a single nomegestrol acetate subdermal implant involve prevention of follicular growth, development of a persistent non-luteinized follicle, inadequate luteal phase and disruption ...Continue Reading

Citations

May 29, 2000·Contraception·V BracheA Faundes
Feb 22, 2011·Steroids·Alfred O Mueck, Regine Sitruk-Ware
Dec 3, 2015·Women's Health·Giuseppe BenagianoIvo Brosens
Feb 20, 2007·Annals of the New York Academy of Sciences·Giuseppe BenagianoManuela Farris
Mar 30, 2000·American Journal of Obstetrics and Gynecology·F Alvarez-SanchezA Faúndes
Sep 23, 2008·Expert Review of Medical Devices·Giuseppe BenagianoManuela Farris
Oct 15, 2014·Clinical Obstetrics and Gynecology·Pamela A Royer, Kirtly P Jones
Nov 18, 2005·Human Reproduction Update·Regine Sitruk-Ware

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