Recruiting Studies
Advanced SearchData: ClinicalTrials.gov · Source of record for eligibility and locations
Top Cities for Endometriosis Clinical Trials
Endometriosis clinical trials are recruiting across 45 cities. Here are the cities with the most active studies:
Endometriosis Trial Phases
28 research organizations are sponsoring endometriosis trials.
About Endometriosis
Endometriosis is a condition where tissue similar to the uterine lining grows outside the uterus, causing pain, heavy periods, and infertility. It affects approximately 10% of women of reproductive age. Treatment includes pain management, hormonal therapy, and surgery.
Clinical trials are advancing new treatments for endometriosis. Currently, 32 studies are recruiting a combined 4,787 participants across the United States. Research is being conducted by 28 organizations including Aspira Women's Health, Sumitomo Pharma Switzerland GmbH, State University of New York at Buffalo and 25 others.
2026 Endometriosis Research Landscape
As of August 2026, the endometriosis clinical trial landscape includes 32 actively recruiting studies across 45 cities in the United States. These studies are collectively seeking 4,787 participants, with an average enrollment target of 150 per study.
The research spans multiple phases of development: 16 studies are in NA, 3 studies are in PHASE3, 3 studies are in PHASE2, 2 studies are in EARLY_PHASE1, 1 study is in PHASE1, 1 study is in PHASE4. The presence of Phase 3 trials indicates that some endometriosis treatments are in late-stage testing and may be approaching regulatory review.
Research is being led by 28 different organizations, including Aspira Women's Health, Sumitomo Pharma Switzerland GmbH, State University of New York at Buffalo, University of California, San Francisco, Loyola University, and 23 others. The large number of sponsors reflects significant research interest and investment in endometriosis treatment advancement.
Geographically, endometriosis trials are most concentrated in Los Angeles, California (3 trials); St Louis, Missouri (3 trials); Chandler, Arizona (2 trials); Burbank, California (2 trials); Baltimore, Maryland (2 trials) and 7 other cities.
Featured Endometriosis Studies
Highlighted recruiting studies for endometriosis, selected by enrollment size and research scope.
Deep Neural Network Stratification for Use Detecting Endometriosis in Women Affected by Chronic Pelvic Pain (EndoCheck)
The goal of this observational study is to determine the clinical validity of a deep neural network algorithm that utilizes protein biomarker detection of Endometriosis - "EndoCheck" - as an "aid in diagnosis" for endometriosis and to show validity as a diagnostic test
A Phase 3B Study to Evaluate Bone Mineral Density With Long-Term Use of Relugolix Combination Tablet in Women With Uterine Fibroids or Endometriosis
The purpose of this clinical trial to characterize changes in bone mineral density during continuous treatment with relugolix combination tablet for up to 48 months (4 years) and 1 year of post-treatment follow-up in premenopausal women with heavy menstrual bleeding associated with uterine leiomyomas (fibroids) or with moderate-to-severe pain associated with endometriosis.
EPPIC: Easing Pelvic Pain Interventions Clinical Research Program
The EPPIC (Easing Pelvic Pain Interventions Clinical Research Program) study evaluates an ultra-brief, 4 session cognitive behavioral pain treatment transdiagnostic in design for urologic chronic pain syndrome (UCPPS) with clinical and practical advantages over existing behavioral therapies whose length and focus limits their adoption by clinicians and coverage for mechanistically similar comorbid...
Frequently Asked Questions About Endometriosis Clinical Trials
Are there endometriosis clinical trials near me?
Yes, there are 32 endometriosis clinical trials currently recruiting across 45+ cities in the United States, including Los Angeles, California; St Louis, Missouri; Chandler, Arizona. Browse the studies above to find one at a location convenient for you.
How do I join a endometriosis clinical trial?
To join a endometriosis clinical trial: 1) Browse the available studies on this page, 2) Click on a study that interests you, 3) Check the study locations to find a site near you, 4) Review the eligibility criteria, and 5) Contact the study site or complete the eligibility form. The process is free and you can withdraw at any time.
Are endometriosis clinical trials free?
Yes, participation in endometriosis clinical trials is free. Study-related treatments, medical tests, and doctor visits are provided at no cost to participants. Many studies also offer compensation for your time and travel expenses.
What types of endometriosis treatments are being studied?
Current endometriosis clinical trials are testing a range of approaches across NA (16 studies), PHASE3 (3 studies), PHASE2 (3 studies), EARLY_PHASE1 (2 studies), PHASE1 (1 study), PHASE4 (1 study). These include new drugs, combination therapies, medical devices, and other interventions sponsored by 28 research organizations.
Is it safe to participate in endometriosis clinical trials?
Clinical trials are carefully regulated by the FDA and institutional review boards (IRBs). All trials must follow strict safety protocols, and participants receive close medical monitoring throughout the study. You can withdraw from a trial at any time without penalty.
Data updated August 31, 2026 from ClinicalTrials.gov
About This Data
Data: ClinicalTrials.gov · Source of record for eligibility and locations
Clinical trial information on this page is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health (NIH) and National Library of Medicine (NLM). Study data is refreshed every hour to ensure accuracy.
Medical Disclaimer: The information provided on this page is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare provider before making decisions about clinical trial participation or changes to your treatment plan.
Page reviewed by the HelloStudys Research Team · Last updated August 31, 2026 · Data from ClinicalTrials.gov