Vaginal Contraceptive Ring Study

This study is investigating how effective a new vaginal contraceptive ring is at preventing pregnancy. There is currently only one vaginal contraceptive ring that has been approved for use by the FDA in the United States - the NuvaRing®, which requires using a new ring each month. This study ring is part of a series of longer use vaginal rings containing Nestorone and ethinyl estradiol for pregnancy protection. This particular ring is a 90-day version that may be used continuously for 90 days or with a monthly 2-day bleeding period. We are also interested in learning how this ring affects your menstrual cycles and bleeding patterns.

woman and man holding hands in a garden


  • You are between the ages of 18-35
  • You are pre-menopausal and at risk for pregnancy
  • You are in good general health
  • You have regular menstrual cycles


Qualified participants will receive all study related medical exams and laboratory services at no charge and will be compensated up to $720 for their time and travel.

Who do I contact for additional information?

To find out more information and to learn if you are qualified to participate, call the Women's Health Research Unit's confidential recruitment line at 503-494-3666 or email us at