Mirena Extended Trial (MET)

Bayer Sponsor Study Photo

Why is this study being done?

The Mirena IUD is a highly effective contraceptive method that is currently approved for use in the U.S. for up to 5 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 8 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 substudy will be conducted to assess whether the effect of Mirena on menstrual blood loss is maintained beyond 5 years, and up to 8 years of use.


You may be eligible for this study if:
  • You are a woman between the ages of 18 and 33
  • You are currently using a Mirena IUD for birth control or birth control and heavy menstrual blood loss
  • You have been using the same Mirena IUD for at least 4.5 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 vasectomy


You will be compensated up to $2,180 for participating in this study. Compensation will only be given to you for visits that you attend.