Abstract
Combined contraceptive vaginal rings (CVR) are increasingly appreciated due to several beneficial properties like avoidance of the hepatic first-pass effect, a comparatively low dosage of hormones and comfortable use. A further development of the widely used CVR releasing 0.12 mg etonogestrel (ETO) and 0.015 mg ethinylestradiol (EE) per 24 hours has been marketed since 2017. The 11.00/3.474 mg ETO/EE CVR Ornibel® is bioequivalent to the former product but differs in its polymer composition leading to improved stability. Here, results from recent studies on the novel CVR Ornibel® are reviewed including clinical trials on bleeding profile, acceptability, sexual function and other quality of life (QoL) parameters as well as in vitro studies on microbial adhesion to the CVR and the influence of ring rupture on hormone release. Findings are complemented with new data on contraceptive efficacy and safety of the new CVR that were assessed during 3 years of real-life experience.
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