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ClinicalTrials.gov public records Last synced Oct 24, 2026, 8:56 AM EDT

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Showing 145–168 of 359 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Irritable Colon Clear all
Recruiting No phase listed Observational

Indiana University Gastrointestinal Motility Diagnosis Registry

NCT04506593
View directory record Official record
Conditions
Eosinophilic Esophagitis, Gastroesophageal Reflux Disease (GERD), Gastroparesis, Functional Vomiting, Irritable Bowel Syndrome (IBS), Constipation, Chronic Intestinal Pseudo-obstruction, Fecal Incontinence, Small Intestinal Bacterial Overgrowth
Interventions
no intervention
Other
Lead sponsor
Indiana University
Other
Eligibility
Not listed
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2026
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Oct 24, 2026, 8:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Serine Proteases in Gastrointestinal Function and Irritable Bowel Syndrome (IBS)

NCT01072916
View directory record Official record
Conditions
Colon, Irritable
Interventions
Not listed
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 11, 2016 · Synced Oct 24, 2026, 8:56 AM EDT
Terminated Phase 2 Interventional Results available

Efficacy and Safety of SYN-010 in IBS-C

NCT03763175
View directory record Official record
Conditions
Irritable Bowel Syndrome With Constipation
Interventions
SYN-010 21 mg, SYN-010 42 mg, Placebo
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 13, 2022 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Not applicable Interventional Results available

Clinical Study Comparing PillCam® Crohn's Capsule Endoscopy to Ileocolonoscopy (IC) Plus MRE for Detection of Active CD in the Small Bowel and Colon in Subjects With Known CD and Mucosal Disease.

NCT03241368
View directory record Official record
Conditions
Crohn Disease
Interventions
Capsule Endoscopy
Device
Lead sponsor
Medtronic - MITG
Industry
Eligibility
18 Years and older
Enrollment
187 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
24
States / cities
Mobile, Alabama • Scottsdale, Arizona • Jacksonville, Florida + 20 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2020 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Characterization of Pain Processing Mechanisms in Irritable Bowel Syndrome

NCT00100425
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Viceral Perception Testing
Procedure
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 72 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2000
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 21, 2009 · Synced Oct 24, 2026, 8:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

BÜHLMANN fCAL™ ELISA - Aid in Differentiation of IBD From IBS

NCT02351635
View directory record Official record
Conditions
Inflammatory Bowel Disease, Irritable Bowel Syndrome
Interventions
fecal calprotectin level
Other
Lead sponsor
Bühlmann Laboratories AG
Industry
Eligibility
22 Years and older
Enrollment
478 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
7
States / cities
Palo Alto, California • Miami, Florida • Macon, Georgia + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 18, 2019 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Phase 2 Interventional Results available

Glutamine for the Treatment of Patients With Irritable Bowel Syndrome

NCT01414244
View directory record Official record
Conditions
Diarrhea-Predominant Irritable Bowel Syndrome
Interventions
Glutamine
Drug
Lead sponsor
Tulane University
Other
Eligibility
18 Years to 72 Years
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Aug 9, 2017 · Synced Oct 24, 2026, 8:56 AM EDT
Not yet recruiting Phase 2 Interventional

Herbal Supplement (Biocidin REMOVE) for Bacterial Overgrowth in Irritable Bowel Syndrome

NCT07768267
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS), Small Intestinal Bacterial Overgrowth Syndrome (SIBO)
Interventions
Biocidin REMOVE, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 24, 2026, 8:56 AM EDT
Recruiting Not applicable Interventional

Transauricular Neurostimulation for Abdominal Pain Due to DGBI

NCT07798180
View directory record Official record
Conditions
Abdominal Pain (AP), Disorders of Gut-brain Interaction
Interventions
Transcutaneous auricular neurostimulation
Device
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
12 Years to 18 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Not applicable Interventional Results available

The Role of Fiber in the Prevention and Treatment of Fecal Incontinence

NCT04806386
View directory record Official record
Conditions
Fecal Incontinence, Irritable Bowel Syndrome With Diarrhea
Interventions
Psyllium
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
50 Years to 90 Years · Female only
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Not applicable Interventional

Audio-recorded Gut-Hypnotherapy for Sleep and Pain in Pediatric Abdominal Pain Disorders

NCT07216092
View directory record Official record
Conditions
Irritable Bowel Syndrome, Disorders of Gut-brain Interaction
Interventions
Gut-directed Hypnotherapy
Other
Lead sponsor
Children's Hospital at Montefiore
Other
Eligibility
8 Years to 18 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Mahwah, New Jersey
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Phase 2 Interventional

A Comparison of the Effects of ORP-101 Versus Placebo in Adult Patients With Irritable Bowel Syndrome With Diarrhea (IBS-D)

NCT04129619
View directory record Official record
Conditions
Irritable Bowel Syndrome With Diarrhea
Interventions
ORP-101, Placebo
Drug
Lead sponsor
OrphoMed, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
321 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
74
States / cities
Birmingham, Alabama • Chandler, Arizona • Phoenix, Arizona + 61 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2022 · Synced Oct 24, 2026, 8:56 AM EDT
Completed No phase listed Observational

SIBO, Immune Activation, and FGIDs in Children

NCT02872961
View directory record Official record
Conditions
Small Intestinal Bacterial Overgrowth, Irritable Bowel Syndrome, Functional Dyspepsia, Functional Abdominal Pain
Interventions
Not listed
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
4 Years to 17 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 29, 2021 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Phase 3 Interventional Results available

12-Week Efficacy and Safety Study of Ibodutant in Women With Irritable Bowel Syndrome With Diarrhea (IBS-D)

NCT02107196
View directory record Official record
Conditions
Irritable Bowel Syndrome With Diarrhea
Interventions
Ibodutant 10 mg, Placebo
Drug
Lead sponsor
Menarini Group
Industry
Eligibility
18 Years and older · Female only
Enrollment
535 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
65
States / cities
Huntsville, Alabama • Sherwood, Arizona • Little Rock, Arkansas + 56 more
Source: ClinicalTrials.gov public record
Updated Jan 19, 2017 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Phase 3 Interventional Results available

A Phase 3, International, Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group Efficacy and Safety Trial of Linaclotide Administered Orally for 12 Weeks to Patients With Irritable Bowel Syndrome With Constipation (IBS-C)

NCT01880424
View directory record Official record
Conditions
Irritable Bowel Syndrome With Constipation (IBS-C)
Interventions
Placebo, Linaclotide
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
1,722 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
52
States / cities
Huntsville, Alabama • North Little Rock, Arkansas • Phoenix, Arkansas + 49 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2016 · Synced Oct 24, 2026, 8:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Observational Study of Control Participants for the MAPP Research Network

NCT01098292
View directory record Official record
Conditions
Fibromyalgia, Irritable Bowel Syndrome, Fatigue Syndrome, Chronic
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
615 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
8
States / cities
Birmingham, Alabama • Los Angeles, California • Stanford, California + 5 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2014 · Synced Oct 24, 2026, 8:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Use of Functional Magnetic Resonance Imaging (fMRI) to Study Brain Activation in Children With Irritable Bowel Syndrome

NCT00677976
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Not listed
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
10 Years to 18 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 30, 2020 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Open-Label Study of Two Formulations of LX1033 in Healthy Human Subjects

NCT01411800
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
250 mg capsule, 250 mg tablets
Drug
Lead sponsor
Lexicon Pharmaceuticals
Industry
Eligibility
18 Years to 55 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 20, 2012 · Synced Oct 24, 2026, 8:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Biomarkers for Intestinal Permeability in Patients With Constipation

NCT02246647
View directory record Official record
Conditions
Intestinal Diseases, Irritable Bowel Syndrome, Constipation
Interventions
Permeability measurement, Esophagogastroduodenoscopy, Flexible sigmoidoscopy
Diagnostic Test · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 21, 2019 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Phase 1Phase 2 Interventional

Acupuncture for Irritable Bowel Syndrome

NCT00065403
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Acupuncture
Device
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
18 Years to 80 Years
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 18, 2006 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Phase 2 Interventional Results available

Efficacy and Safety of Plecanatide in Children 6 to <18 Years With Irritable Bowel Syndrome With Constipation (IBS-C)

NCT03596905
View directory record Official record
Conditions
Irritable Bowel Syndrome With Constipation
Interventions
Plecanatide, Matching placebo
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
6 Years to 18 Years
Enrollment
218 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
35
States / cities
Saraland, Alabama • Scottsdale, Arizona • Corona, California + 28 more
Source: ClinicalTrials.gov public record
Updated Dec 31, 2025 · Synced Oct 24, 2026, 8:56 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Probiotic (VSL #3) for Gulf War Illness

NCT02011542
View directory record Official record
Conditions
Gulf War Illness
Interventions
VSL#3, Placebo
Drug
Lead sponsor
University of Utah
Other
Eligibility
35 Years to 75 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 26, 2018 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Not applicable Interventional

Stress Management for Irritable Bowel Syndrome

NCT01886027
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Emotional Awareness and Expression Training, Relaxation Training
Behavioral
Lead sponsor
Wayne State University
Other
Eligibility
18 Years to 70 Years
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated May 6, 2015 · Synced Oct 24, 2026, 8:56 AM EDT
Completed Phase 3 Interventional Results available

The Effect of Long-Acting Mesalamine on Post-Infective Irritable Bowel Syndrome- A Pilot Study

NCT01412372
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Mesalamine, Placebo
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 75 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2019
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 31, 2020 · Synced Oct 24, 2026, 8:56 AM EDT