Recruiting Studies
Advanced SearchData: ClinicalTrials.gov · Source of record for eligibility and locations
Top Cities for Diarrhea Clinical Trials
Diarrhea clinical trials are recruiting across 43 cities. Here are the cities with the most active studies:
Diarrhea Trial Phases
9 research organizations are sponsoring diarrhea trials.
About Diarrhea
Chronic diarrhea involves frequent, loose, or watery bowel movements lasting more than four weeks. It can result from infections, inflammatory conditions, or functional disorders. Treatment targets the underlying cause and may include dietary changes, anti-diarrheal medications, and probiotics.
Clinical trials are advancing new treatments for diarrhea. Currently, 11 studies are recruiting a combined 1,401 participants across the United States. Research is being conducted by 9 organizations including Eli Lilly and Company, GlaxoSmithKline, University of Utah and 6 others.
2026 Diarrhea Research Landscape
As of July 2026, the diarrhea clinical trial landscape includes 11 actively recruiting studies across 43 cities in the United States. These studies are collectively seeking 1,401 participants, with an average enrollment target of 127 per study.
The research spans multiple phases of development: 6 studies are in PHASE2, 3 studies are in PHASE1, 1 study is in PHASE4, 1 study is in NA, 1 study is in EARLY_PHASE1. Early-phase studies suggest new therapeutic approaches are being explored for diarrhea.
Research is being led by 9 different organizations, including Eli Lilly and Company, GlaxoSmithKline, University of Utah, AbbVie, Paul A Breslin, and 4 others.
Geographically, diarrhea trials are most concentrated in Anaheim, California (2 trials); Garden Grove, California (2 trials); Miami, Florida (2 trials); Houston, Texas (2 trials); Mesa, Arizona (1 trial) and 7 other cities.
Featured Diarrhea Studies
Highlighted recruiting studies for diarrhea, selected by enrollment size and research scope.
A Study of Brenipatide (LY3537031) in Participants With Irritable Bowel Syndrome-Diarrhea (IBS-D)
The purpose of this study is to evaluate how well brenipatide (LY3537031) is tolerated, what side effects may occur, and the safety and efficacy in participants with Irritable Bowel Syndrome-Diarrhea (IBS-D). The study drug will be administered subcutaneously (SC) (under the skin) when compared with placebo. The study will last approximately 35 weeks.
A Study to Investigate Abdominal Symptoms With Camlipixant Compared With Placebo in Adults With Irritable Bowel Syndrome - Diarrhea (IBS-D) and Irritable Bowel Syndrome - Mixed (IBS-M)
This study is designed to evaluate the efficacy and safety of camlipixant in adults with IBS-D and IBS-M. The study has two parts. After the first part, some participants will be randomly chosen again to either get a higher dose or stop the drug.
Impact of Budesonide on Incidence of ≥ Gr2 Diarrhea in Multiple Myeloma (MM) Patients Undergoing Autologous Stem Cell Transplant
A randomized placebo controlled, phase 2 study of budesonide in subjects with multiple myeloma undergoing autologous stem cell transplant (ACST). The study includes a run-in period with 20 patients.
Frequently Asked Questions About Diarrhea Clinical Trials
Are there diarrhea clinical trials near me?
Yes, there are 11 diarrhea clinical trials currently recruiting across 43+ cities in the United States, including Anaheim, California; Garden Grove, California; Miami, Florida. Browse the studies above to find one at a location convenient for you.
How do I join a diarrhea clinical trial?
To join a diarrhea 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 diarrhea clinical trials free?
Yes, participation in diarrhea 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 diarrhea treatments are being studied?
Current diarrhea clinical trials are testing a range of approaches across PHASE2 (6 studies), PHASE1 (3 studies), PHASE4 (1 study), NA (1 study), EARLY_PHASE1 (1 study). These include new drugs, combination therapies, medical devices, and other interventions sponsored by 9 research organizations.
Is it safe to participate in diarrhea 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 July 18, 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 July 18, 2026 · Data from ClinicalTrials.gov