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Treatments in Endocrinology

, Volume 5, Issue 2, pp 115–121 | Cite as

A Comparison of the Cycle Control, Safety, and Efficacy Profile of a 21-Day Regimen of Ethinylestradiol 20μg and Drospirenone 3mg with a 21-Day Regimen of Ethinylestradiol 20μg and Desogestrel 150μg

  • Doris M. Gruber
  • Johannes C. Huber
  • Gian Benedetto Melis
  • Caroline Stagg
  • Susanne Parke
  • Joachim Marr
Original Research Article

Abstract

Objective: To compare the cycle control, efficacy, and safety of a new low-dose combined oral contraceptive containing ethinylestradiol 20μg and drospirenone 3mg with an established formulation containing ethinylestradiol 20μg and desogestrel 150μg.

Methods: This was a randomized, open-label, parallel-group, multicenter study of healthy women (aged 18–35 years) over seven treatment cycles. Both combined oral contraceptives were administered once daily for 21 consecutive days followed by a 7-day hormone-free interval.

Results: A total of 445 women were randomized to treatment; of these, 441 (ethinylestradiol 20μg/drospirenone 3mg, n = 220; ethinylestradiol 20μg/desogestrel 150μg, n = 221) went on to receive study medication. There was a trend towards reduced intracyclic bleeding with continued treatment in both treatment groups, consistent with clinical experience. Intracyclic bleeding was highest during the first treatment cycle in both treatment groups, but was generally much lower in subsequent cycles. More than 90% of women in each of the groups experienced withdrawal bleeding during the study. The duration of withdrawal bleeding remained fairly constant throughout the study. The maximum intensity was mainly bleeding, rather than spotting. Overall, cycle control, efficacy, and safety profiles were comparable between both groups. Adverse events were generally of mild-to-moderate intensity and were those typical of hormonal contraceptive use.

Conclusion: In conclusion, both ethinylestradiol 20μg/drospirenone 3mg and ethinylestradiol 20μg/desogestrel 150μg are effective and well tolerated contraceptives that provide good cycle control.

Keywords

Oral Contraceptive Ethinylestradiol Combine Oral Contraceptive Desogestrel Drospirenone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Adis Data Information BV 2006

Authors and Affiliations

  • Doris M. Gruber
    • 1
  • Johannes C. Huber
    • 1
  • Gian Benedetto Melis
    • 2
  • Caroline Stagg
    • 3
  • Susanne Parke
    • 4
  • Joachim Marr
    • 4
  1. 1.Department of Gynecological Endocrinology and Reproductive Medicine, Clinic for Gynecology and ObstetricsUniversity of ViennaViennaAustria
  2. 2.Department of Obstetrics and GynecologyUniversity of CagliariCagliariItaly
  3. 3.The Pulteney PracticeBathUK
  4. 4.Gynecology and AndrologySchering AG, BerlinGermany

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