Clinical trials
Irritable Bowel Syndrome trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
292 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1 |
| 2001 | 2 |
| 2002 | 1 |
| 2003 | 6 |
| 2004 | 6 |
| 2005 | 4 |
| 2006 | 11 |
| 2007 | 10 |
| 2008 | 13 |
| 2009 | 21 |
| 2010 | 20 |
| 2011 | 9 |
| 2012 | 12 |
| 2013 | 9 |
| 2014 | 15 |
| 2015 | 6 |
| 2016 | 11 |
| 2017 | 13 |
| 2018 | 13 |
| 2019 | 16 |
| 2020 | 12 |
| 2021 | 12 |
| 2022 | 12 |
| 2023 | 14 |
| 2024 | 9 |
| 2025 | 16 |
| 2026 | 15 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 194 |
| Terminated | 33 |
| Recruiting | 29 |
| Unknown status | 12 |
| Not yet recruiting | 8 |
| Withdrawn | 6 |
| Enrolling by invitation | 4 |
| Suspended | 3 |
| Active, not recruiting | 3 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Mayo Clinic | 19 |
| University of California, Los Angeles | 11 |
| University of Michigan | 10 |
| Baylor College of Medicine | 9 |
| Beth Israel Deaconess Medical Center | 7 |
| GlaxoSmithKline | 7 |
| University of North Carolina, Chapel Hill | 7 |
| Bausch Health Americas, Inc. | 6 |
| Stanford University | 6 |
| Massachusetts General Hospital | 5 |
Top conditions
MeSH conditions the trials were registered with, not their broader categories. A condition with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Irritable Bowel Syndrome | 292 |
| Abdominal Pain | 40 |
| Diarrhea | 30 |
| Constipation | 22 |
| Fibromyalgia | 17 |
| Gastrointestinal Diseases | 16 |
| Inflammatory Bowel Diseases | 16 |
| Colitis, Ulcerative | 14 |
| Crohn Disease | 14 |
| Anxiety Disorders | 11 |
Trials
Showing 1 to 25 of 292. Each trial links to its page on Pharma Observatory.
192 more trials match. See them on Pharma Observatory
Recently changed trials
Changes observed in the last 7 days, newest first, site-count changes left out. Source: ClinicalTrials.gov.
No changes to these trials in the last 7 days.
Go deeper on Pharma Observatory
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