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Mirena Study: Extended Use to Prevent Pregnancy

Study Information


Why is this study being done? 

Mirena® IUS is a highly effective contraceptive method that is currently approved for use in the U.S. for up to five years. In addition, Mirena® has been shown to reduce menstrual blood loss. Researchers aim to assess if Mirena® is an effective method of contraception for up to eight years. Depending on the results, this may allow clinicians to recommend a longer interval between the IUS placements in women. Mirena® can also lessen menstrual blood loss in women who have heavy menstrual flow. Therefore, a sub-study will be conducted to assess whether the effect of Mirena® on menstrual blood loss is maintained beyond five years and up to eight years of use.

Contact Information

For more information and to learn if you are qualified to participate, please contact Emma Locke at (401) 274-1122, ext. 48533 or at

Eligibility Criteria


You may be eligible for this study if:

  • You are a woman between the ages of 18 and 33.
  • You are currently using Mirena® for birth control OR birth control and heavy menstrual blood loss. 
  • You have been using the same Mirena® for at least four and one half years and are able to show documentation of the original date of insertion and indication for use.
  • You are willing to use the study drug as your main form of contraception.
  • You are sexually active with a male partner who has not had a vasect.



You will be compensated up to $30 per month for participating in this study. Compensation will only be given to you for successful completion of study-related requirements.

Contact Form

If you are interested in learning more about this study, please contact (401) 274-1122, ext. 48533

Women & Infants

Area of Study

Recruitment Status