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Showing 1–24 of 354 matching trials from the live ClinicalTrials.gov search.
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Completed Not applicable Interventional

Effect of Repetitive Transcranial Direct Current Stimulation (tDCS) on Chronic Pelvic Pain

NCT00554320
View directory record Official record
Conditions
Chronic Pelvic Pain, Interstitial Cystitis, Post Traumatic Stress Disorder, Fibromyalgia, Irritable Bowel Syndrome
Interventions
tDCS
Procedure
Lead sponsor
Summa Health System
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Akron, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 17, 2009 · Synced Jun 26, 2026, 6:49 PM EDT
Completed Not applicable Interventional Results available

Efficacy and Safety of IBS Digital Behavioral Treatment

NCT04133519
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Arm 1 - Active behavioral Treatment Arm (Regulora; Gut-Directed Hypnotherapy Software as a Medical Device - SaMD), Arm 2 - Active Comparator behavioral treatment arm (MR-1; Muscle Relaxation, Software as a Medical Device - SaMD)
Device
Lead sponsor
metaMe Health
Industry
Eligibility
18 Years to 70 Years
Enrollment
378 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 3, 2022 · Synced Jun 26, 2026, 6:49 PM EDT
Completed Not applicable Interventional Results available

Evaluating the Efficacy of the Mediterranean Diet to the Low- Fermentable, Oligosaccharides, Disaccharides, Monosaccharides, and Polyols (FODMAP) Diet in Treating Irritable Bowel Syndrome(IBS)

NCT05807919
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Diet low in all FODMAP groups, Diet - Mediterranean
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 70 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Jun 26, 2026, 6:49 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Brain-Gut Interactions in Overweight and Normal Weight Patients With Chronic Abdominal Pain

NCT00824941
View directory record Official record
Conditions
Obesity, Stress, Irritable Bowel Syndrome, Women, Abdominal Pain
Interventions
Not listed
Lead sponsor
National Institute of Nursing Research (NINR)
NIH
Eligibility
13 Years to 45 Years
Enrollment
132 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 19, 2019 · Synced Jun 26, 2026, 6:49 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

Effect of Ranolazine on Gastrointestinal Motor Function and Pain in Patients With IBS-D

NCT02239926
View directory record Official record
Conditions
Diarrhea Predominant Irritable Bowel Syndrome
Interventions
Ranolazine, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 14, 2016 · Synced Jun 26, 2026, 6:49 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Multi Modal Imaging: An MRI Study to Investigate Differences in the Structure and the Function of the Brain at Rest.

NCT01517516
View directory record Official record
Conditions
Irritable Bowel Syndrome, Cyclical Vomiting Syndrome, Ulcerative Colitis, Vulvodynia, Crohn's Disease
Interventions
Not listed
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 55 Years
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 13, 2016 · Synced Jun 26, 2026, 6:49 PM EDT
Completed Not applicable Interventional Results available

Open Label Seroquel (Quetiapine) Study for Treatment Resistant Functional Bowel Disorder

NCT00617396
View directory record Official record
Conditions
Functional Bowel Disorders
Interventions
Quetiapine (50 mg/day-100mg/day)
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 60 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 14, 2017 · Synced Jun 26, 2026, 6:49 PM EDT
Not yet recruiting Early Phase 1 Interventional

Use of A Complex Gut Bacterial Consortium (MITI 001) for the Treatment of Irritable Bowel Syndrome With Diarrhea

NCT07238790
View directory record Official record
Conditions
IBS (Irritable Bowel Syndrome), Diarrhea
Interventions
MITI-001 administration
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
2
States / cities
Redwood City, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Nov 19, 2025 · Synced Jun 26, 2026, 6:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Integrating Targeted MedlinePlus Health Prescriptions Into Clinic Practice Workflow

NCT00634608
View directory record Official record
Conditions
Allergic Rhinitis, Asthma, Back Pain, Benign Prostatic Hypertrophy, Bursitis, Depression, Anxiety, Diabetes Mellitus, Esophageal Reflux, HIV Infections, Hyperlipidemia, Hypertension, Insomnia, Irritable Bowel Syndrome, Obesity, Osteoporosis (Senile), Shoulder Pain, Sinusitis, Symptomatic Menopause, Urinary Incontinence, Urinary Tract Infection, Vaginitis
Interventions
Health Information Prescription
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years and older
Enrollment
224 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 29, 2016 · Synced Jun 26, 2026, 6:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Single Group Study to Evaluate the Effects of a Vaginal Probiotic on Vaginal and Digestive Health

NCT06124313
View directory record Official record
Conditions
Irritable Bowel Syndrome, Vaginal Health
Interventions
Vaginal Probiotic
Dietary Supplement
Lead sponsor
Rael
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Aug 22, 2024 · Synced Jun 26, 2026, 6:49 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Capsule Microbiota Sampling in IBS/Functional Gastrointestinal Disease

NCT06215222
View directory record Official record
Conditions
IBS - Irritable Bowel Syndrome, Healthy, Functional Bloating, Functional Gastrointestinal Disorders
Interventions
Microbiota Sampling
Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Redwood City, California
Source: ClinicalTrials.gov public record
Updated Jan 21, 2024 · Synced Jun 26, 2026, 6:49 PM EDT
Terminated Phase 3 Interventional

The Effect of Tegaserod on Patterns of Flow in the Small Bowel of Patients With Irritable Bowel Syndrome (IBS)

NCT00171431
View directory record Official record
Conditions
Constipation Predominant, Irritable Bowel Syndrome (IBS-C)
Interventions
Tegaserod
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 19, 2012 · Synced Jun 26, 2026, 6:49 PM EDT
Not listed Not applicable Interventional

Changes in Microbiota and Quality of Life in IBS

NCT05266287
View directory record Official record
Conditions
IBS - Irritable Bowel Syndrome
Interventions
a supplement containing 2'-fucosyllactose (2'-FL), Placebo Supplement
Dietary Supplement
Lead sponsor
National University of Natural Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 23, 2023 · Synced Jun 26, 2026, 6:49 PM EDT
Completed Phase 2 Interventional Results available

Trial of Linaclotide in Patients With Irritable Bowel Syndrome With Constipation (IBS-C)

NCT02559206
View directory record Official record
Conditions
Irritable Bowel Syndrome With Constipation
Interventions
Linaclotide, Matching Placebo
Drug
Lead sponsor
Ironwood Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
759 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
71
States / cities
Huntsville, Alabama • Phoenix, Arizona • Tucson, Arizona + 61 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2020 · Synced Jun 26, 2026, 6:49 PM EDT
Completed Not applicable Interventional

Comparing the Effectiveness of 2 Diets for Patients With Irritable Bowel Syndrome

NCT01624610
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Dietary intervention
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
2
States / cities
Indianapolis, Indiana • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 30, 2016 · Synced Jun 26, 2026, 6:49 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

OptiCal Study -Optimizing Fecal Calprotectin Monitoring: a Clinical Study Comparing CalproLab Against PhiCal and Evaluating Its Association With the Gut Microbiome

NCT03051204
View directory record Official record
Conditions
Crohn Disease, Ulcerative Colitis, Irritable Bowel Syndrome, Celiac Disease, Healthy
Interventions
Not listed
Lead sponsor
University of California, Los Angeles
Other
Eligibility
4 Years to 65 Years
Enrollment
175 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Jun 26, 2026, 6:49 PM EDT
Completed Not applicable Interventional

RCT of VR Therapy for IBS

NCT06687616
View directory record Official record
Conditions
IBS - Irritable Bowel Syndrome
Interventions
SynerGI, Sham VR
Device
Lead sponsor
Christopher Almario
Other
Eligibility
10 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
2
States / cities
Los Angeles, California • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 7, 2025 · Synced Jun 26, 2026, 6:49 PM EDT
Completed Not applicable Interventional Results available

Neomycin and Rifaximin Plus Neomycin in Treating Methane Positive Constipation Predominant Irritable Bowel Syndrome

NCT00945334
View directory record Official record
Conditions
Constipation-predominant Irritable Bowel Syndrome
Interventions
Neomycin, Placebo, Rifaximin
Drug
Lead sponsor
Mark Pimentel, MD
Other
Eligibility
18 Years to 75 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
2
States / cities
Los Angeles, California • Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 9, 2015 · Synced Jun 26, 2026, 6:49 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Pilot Study of the Physiological Effects of an Integrative Medicine Approach in Irritable Bowel Syndrome

NCT03370614
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
IBS Group, Healthy Control Group
Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2025
U.S. locations
2
States / cities
Philadelphia, Pennsylvania • Villanova, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 28, 2024 · Synced Jun 26, 2026, 6:49 PM EDT
Recruiting Not applicable Interventional

IBS Skin Patch Test Food Allergy Study

NCT06288672
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
True avoidance diet, Sham avoidance diet
Other
Lead sponsor
IBS-80, LLC
Industry
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
North Wales, Pennsylvania • Barboursville, West Virginia
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Jun 26, 2026, 6:49 PM EDT
Completed Phase 2 Interventional Results available

Randomized Placebo Controlled Efficacy And Safety Study Investigating GW876008 In Patients With Irritable Bowel Syndrome

NCT00421707
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS)
Interventions
GW876008, Placebo
Drug · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 64 Years
Enrollment
133 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
17
States / cities
Sherwood, Arkansas • Concord, California • Los Angeles, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2018 · Synced Jun 26, 2026, 6:49 PM EDT
Completed Not applicable Interventional

Harnessing Placebo Effects: Non-Deceptive Use of Placebo in Irritable Bowel Syndrome (IBS)

NCT01010191
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Sugar pill
Other
Lead sponsor
Harvard University Faculty of Medicine
Other
Eligibility
18 Years to 80 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 21, 2011 · Synced Jun 26, 2026, 6:49 PM EDT
Completed Phase 3 Interventional Results available

Linaclotide Safety and Efficacy in Pediatric Participants, 6 to 17 Years of Age, With Irritable Bowel Syndrome With Constipation (IBS-C) or Functional Constipation (FC)

NCT04026113
View directory record Official record
Conditions
Functional Constipation, Irritable Bowel Syndrome With Constipation
Interventions
Linaclotide, Placebo
Drug
Lead sponsor
AbbVie
Industry
Eligibility
6 Years to 17 Years
Enrollment
438 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
79
States / cities
Birmingham, Alabama • Foley, Alabama • Saraland, Alabama + 62 more
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Jun 26, 2026, 6:49 PM EDT
Terminated Phase 2 Interventional Results available

A Safety and Efficacy Study of a Range of Linaclotide Doses Administered Orally to Children Ages 7-17 Years, With Irritable Bowel Syndrome With Constipation

NCT02559817
View directory record Official record
Conditions
Irritable Bowel Syndrome With Constipation
Interventions
Linaclotide Dose A, Linaclotide Dose B, Linaclotide Dose C, Linaclotide Approved Adult Dose, Matching Placebo
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
7 Years to 17 Years
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
46
States / cities
Hot Springs, Arkansas • Little Rock, Arkansas • Anaheim, California + 39 more
Source: ClinicalTrials.gov public record
Updated Dec 27, 2020 · Synced Jun 26, 2026, 6:49 PM EDT