Article (Scientific journals)
Unique effects on hepatic function, lipid metabolism, bone and growth endocrine parameters of estetrol in combined oral contraceptives
Mawet, Marie; Maillard, C.; Klipping, C. et al.
2015 • In European Journal of Contraception and Reproductive Health Care, 20 (6), p. 463-475
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Keywords :
Bone markers; Drospirenone; Endocrinology; Estetrol; Levonorgestrel; Lipid metabolism; Liver function; Article
Abstract :
[en] Objectives Estetrol (E4) is a natural estrogen produced by the human fetal liver. In combination with drospirenone (DRSP) or levonorgestrel (LNG), E4 blocks ovulation and has less effect on haemostatic biomarkers in comparison with ethinylestradiol (EE) combined with DRSP. This study evaluates the impact of several doses of E4/DRSP and E4/LNG on safety parameters such as liver function, lipid metabolism, bone markers and growth endocrine parameters.Methods This was a dose-finding, single-centre, controlled study performed in healthy women aged 18 to 35 years with a documented pretreatment ovulatory cycle. Participants received 5 mg or 10 mg E4/3 mg DRSP; 5 mg, 10 mg or 20 mg E4/150 g LNG; or 20 g EE/3 mg DRSP as a comparator for three consecutive cycles in a 24/4-day regimen. Changes from baseline to end of treatment in liver parameters, lipid metabolism, bone markers and growth endocrinology were evaluated.Results A total of 109 women were included in the study. Carrier proteins were minimally affected in the E4/DRSP and E4/LNG groups, in comparison with the EE/DRSP group, where a significant increase in sex hormone-binding globulin was observed. Similarly, minor effects on lipoproteins were observed in the E4 groups, and the effects on triglycerides elicited by the E4 groups were significantly lower than those in the EE/DRSP group. No imbalances in bone markers were observed in any groups. No alterations in insulin-like growth factor were observed in the E4 groups.Conclusions E4-containing combinations have a limited effect on liver function, lipid metabolism, and bone and growth endocrine parameters. © 2015 The European Society of Contraception and Reproductive Health.
Disciplines :
Reproductive medicine (gynecology, andrology, obstetrics)
Author, co-author :
Mawet, Marie  ;  Estetra SPRL, Rue Saint Georges 5-7, Liège, Belgium
Maillard, C.;  Estetra SPRL, Rue Saint Georges 5-7, Liège, Belgium
Klipping, C.;  Dinox BV, Groningen, Netherlands
Zimmerman, Y.;  Pantarhei Bioscience BV, Zeist, Netherlands
Foidart, Jean-Michel ;  Université de Liège > Département des sciences cliniques > Département des sciences cliniques
Bennink, H. J. T. C.;  Pantarhei Bioscience BV, Zeist, Netherlands
Language :
English
Title :
Unique effects on hepatic function, lipid metabolism, bone and growth endocrine parameters of estetrol in combined oral contraceptives
Publication date :
2015
Journal title :
European Journal of Contraception and Reproductive Health Care
ISSN :
1362-5187
eISSN :
1473-0782
Publisher :
Parthenon Publishing Group, Carnforth, United Kingdom
Volume :
20
Issue :
6
Pages :
463-475
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 15 February 2016

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