LPRI-424 Birth Control Pill Study

The Women’s Health Research Unit is conducting a study to evaluate the safety and effectiveness of a new investigational birth control pill, LPRI-424, at preventing pregnancy.

LPRI-424is a combined birth control pill that contains two types of hormones: progestin and estrogen. This birth control pill has a lower dose of estrogen than other birth control pills currently available. This is expected to reduce the number and/or intensity of side effects. LPRI-424 is designed as an extended-release tablet. Extended-release drugs release the active ingredients slowly and work for a longer time. This helps to reduce daily changes of hormone levels in the blood.

WHRU - LPRI-424 Birth Control Pill Study


  • 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 may be compensated up to $760 for their time and travel.

Whom do I contact for additional information?

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