Ovulation Inhibition of Two 4-phasic Oral Contraceptive Regimens

Multicenter, Open-label, Randomized, Comparative Study to Evaluate Ovulation Inhibition With Two 4-phasic Oral Contraceptive Regimens Containing Estradiol Valerate and Dienogest Applied Daily for Three Cycles to 200 Healthy Female Volunteer

The aim of the study is to investigate the ovulation inhibition of two 4-phasic oral contraceptive regimens.

Inclusion Criteria:

• Healthy women willing to use non-hormonal methods of contraception

Exclusion Criteria:

• Women with any contraindication for oral contraceptive use, for example but not limited to: presence or history of venous or arterial thrombotic / thrombembolic events, hypertension, presence or history of severe hepatic disease