Clinical Trials in Women's Health

Women's Health Research

OHSU is actively recruiting patients for the clinical trials in the women’s health topics listed below.

Current Clinical Trials in Contraception and Birth Control

Cervical Mucus Study
The Women's Health Research Unit is studying how mucus secretion is controlled by natural sex hormones. eIRB# 11532, PI: Leo Han, MD

Combined Hormonal Contraception and Emergency Contraception Study
The purpose of this study is to determine if taking a birth control pill affects how well an emergency contraceptive pill, called Ulipristal Acetate (UPA), works. eIRB #11784, PI: Alison Edelman, MD

ESS Study
The purpose of this study is to learn how long 3 different doses of the hormone MPA (medroxyprogesterone acetate) given as an injection under the skin will prevent ovulation. eIRB# 11751, PI: Jeffrey Jensen, MD, MPH

NES/E2 Contraceptive Ring
The purpose of this research study is to learn more about a new contraceptive vaginal ring. The study will help us better understand the best dose of estradiol for the ring and whether women see any effects of the ring in their menstrual cycle patterns.  eIRB # 15294, PI: Jeffrey Jensen, MD, MPH

Vaginal Ring Study
The purpose of this research study is to examine how effective a new contraceptive ring is at preventing pregnancy. Currently there is only one approved contraceptive ring on the market; this study hopes to give women more choice when selecting a contraceptive method that works for them. eIRB # 11913, PI: Jeffrey Jensen, MD, MPH

Current Clinical Trials in Urogynecology

Overactive Bladder Study
The purpose of this research study is to determine if the urinary microbiome affects overactive bladder syndrome (OAB). Currently, not much is known about the cause of OAB; this study seeks to determine if bacteria in the urinary tract play a role in OAB. Rahel Nardos, MD; eIRB # 10729

Current Clinical Trials in Pregnancy and Infertility

Maternal Body Composition Regulates Placental Function and Fetal Growth
The purpose of this research study is to learn more about how a pregnant woman’s body type (amount of muscle and fat) and food choices affect the nutrients transported from the placenta to the baby. We want to learn how this impacts the baby’s growth through the first year of life, and see if there are differences in growth between male and female babies. eIRB# 11175, PI: Nicole Marshall, MD, MCR

Optimizing Management of the Second Stage of Labor (OMSS): A Multicenter Trial
The purpose of this study is to assess the effectiveness of immediate pushing at complete cervical dilation on the rate of spontaneous vaginal delivery and pelvic floor muscle injury in nulliparous women. eIRB# 10411, PI: Aaron Caughey, MD, PhD

Current Clinical Trials in Menopause

There are currently no clinical trials in this category available for enrollment. Please check back soon.

Clinical Trials in Dysfunctional Uterine Bleeding

There are currently no clinical trials in this category available for enrollment. Please check back soon.

Current clinical trials in women's and gynecologic cancers 

In partnership with the Knight Cancer Institute

Find current trials involving ovarian, uterine and cervical cancers

Current Clinical Trials in Other Areas of Women's Health

Novel Insights into Chronic Vestibulitis using Flow Cytometry and Genetics
The Women's Health Research Unit is studying why some women experience pain in the inner vulva (the entryway to the vagina) with intimacy. The specific condition is called vulvar vestibulodynia. eIRB# 2647, PI: Catherine Leclair, MD

If you are interested in women’s health research, but don’t see a study that pertains to you at present, we would encourage you to contact us in order to receive information on future studies.


The women’s health research unit investigates health issues including, but not limited to, contraception, menopause, vaginal atrophy, urinary incontinence and abortion.

Contact the study coordinator     
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