[en] OBJECTIVE: To determine whether adding dehydroepiandrosterone to combined oral contraceptives (COCs) maintains physiological levels of free testosterone. STUDY DESIGN: A randomized, double-blind, placebo-controlled, two-way crossover study conducted in 81 healthy women (age range: 20-35 years; Body mass index (BMI) range: 18-35 kg/m(2)) using oral contraceptives. Androgens, sex hormone-binding globulin (SHBG), estradiol (E2) and estrone (E1) were measured, and free testosterone and the free testosterone index were calculated. Subjects discontinued oral contraceptive use for at least one menstrual cycle before being randomized to receive five cycles of ethinyl estradiol (EE) combined with either levonorgestrel (EE/LNG group) or drospirenone (EE/DRSP group) together with either dehydroepiandrosterone (DHEA) (50 mg/day orally) or placebo. Subsequently, all subjects crossed over to the other treatment arm for an additional five cycles. RESULTS: Both COCs decreased the levels of all androgens measured. Significant decreases (p<.05) were found with EE/LNG and EE/DRSP for total testosterone (54.5% and 11.3%, respectively) and for free testosterone (66.8% and 75.6%, respectively). Adding DHEA to the COCs significantly increased all androgens compared to placebo. Moreover, including DHEA restored free testosterone levels to baseline values in both COC groups and total testosterone levels to baseline in the EE/LNG group and above baseline in the EE/DRSP group. SHBG concentrations were significantly higher with EE/DRSP compared to EE/LNG (p<.0001). The addition of DHEA did not affect the levels of SHBG. CONCLUSIONS: Taking COCs reduces total and free testosterone levels and increases SHBG concentrations. By coadministration with DHEA, physiological levels of total and free testosterone are restored while using EE/LNG. With EE/DRSP, only the free testosterone level is normalized by DHEA coadministration. IMPLICATIONS: A daily oral dose of 50-mg DHEA maintains physiological free and total testosterone levels in women who are using an EE/LNG-containing COC.
Disciplines :
Reproductive medicine (gynecology, andrology, obstetrics)
Author, co-author :
Coelingh Bennink, Herjan J. T.
Zimmerman, Yvette
Laan, Ellen
Termeer, Hanneke M. M.
Appels, Nicole
Albert, Adelin ; Université de Liège - ULiège > Département des sciences de la santé publique > Département des sciences de la santé publique
Fauser, Bart C. J. M.
Thijssen, Jos H. H.
van Lunsen, Rik H. W.
Language :
English
Title :
Maintaining physiological testosterone levels by adding dehydroepiandrosterone to combined oral contraceptives: I. Endocrine effects.
Publication date :
2017
Journal title :
Contraception
ISSN :
0010-7824
Publisher :
Elsevier, Netherlands
Volume :
96
Issue :
5
Pages :
322-329
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright (c) 2016 Pantarhei Bioscience. Published by Elsevier Inc. All rights reserved.
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