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Related Experiment Videos

Lower hormone dosage with improved cycle control.

M Vree1

  • 1NV Organon, Oss, The Netherlands.

The European Journal of Contraception & Reproductive Health Care : the Official Journal of the European Society of Contraception
|March 28, 2003
PubMed
Summary

NuvaRing, a novel contraceptive vaginal ring, demonstrates excellent cycle control with minimal irregular bleeding and high withdrawal bleeding rates. This suggests improved contraceptive compliance and acceptability for users.

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Area of Science:

  • Reproductive Health
  • Contraception
  • Gynecology

Background:

  • Combined oral contraceptives (COCs) efficacy is linked to cycle control.
  • Lower ethinylestradiol (EE) doses in COCs can negatively impact cycle control.
  • NuvaRing is a novel contraceptive vaginal ring releasing a low EE dose (15 microgram/day).

Purpose of the Study:

  • To assess the cycle control of NuvaRing over one year in 1,182 women.
  • To compare NuvaRing's cycle control with a standard combined oral contraceptive (COC).

Main Methods:

  • A 1-year, multicenter study involving 1,182 women using NuvaRing.
  • Comparison of cycle control between NuvaRing (n=121) and a standard COC (n=126) over six cycles.

Main Results:

  • NuvaRing showed 98.8% withdrawal bleeding rates during the ring-free period.
  • Irregular bleeding during ring use occurred in only 4.4% of cycles with NuvaRing.
  • NuvaRing users experienced significantly more ideal bleeding patterns and less late withdrawal bleeding compared to COC users.

Conclusions:

  • NuvaRing provides excellent cycle control, characterized by predictable withdrawal bleeding and low incidence of irregular bleeding.
  • The superior cycle control of NuvaRing is anticipated to enhance user convenience, acceptability, and compliance.
  • NuvaRing offers a favorable alternative for women seeking reliable contraception with predictable menstrual patterns.

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