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ClinicalTrials.gov public records Last synced Oct 5, 2026, 9:42 AM EDT

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Showing 1–24 of 234 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Irritable Bowel Syndrome (IBS) Clear all
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 Sep 4, 2026 · Synced Oct 5, 2026, 9:42 AM EDT
Completed No phase listed Observational

Cohort Study of Bowel Function Following Robotic-assisted Laparoscopic Sacrocolpopexy

NCT01618292
View directory record Official record
Conditions
Pelvic Organ Prolapse, Constipation, Bowel Dysfunction, Irritable Bowel Syndrome
Interventions
Robotic sacral colpopexy
Procedure
Lead sponsor
Atlantic Health System
Other
Eligibility
Female only
Enrollment
393 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Morristown, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 28, 2014 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Phase 2 Interventional

Study to Explore the Therapeutic Effect of Eluxadoline in Treating Irritable Bowel Syndrome With Diarrhea in Children

NCT03339128
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Eluxadoline, Placebo
Drug
Lead sponsor
AbbVie
Industry
Eligibility
6 Years to 17 Years
Enrollment
272 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
26
States / cities
Hot Springs, Arkansas • Little Rock, Arkansas • Corona, California + 19 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Not applicable Interventional

FODMAP Reintroduction in Irritable Bowel Syndrome

NCT03245645
View directory record Official record
Conditions
Irritable Bowel Syndrome With Diarrhea, Irritable Bowel Syndrome With Mixed Bowel Habits
Interventions
Dietary Intervention
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 11, 2023 · Synced Oct 5, 2026, 9:42 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Sucrose Breath Test to Determine Intestinal Permeability in IBS

NCT01674088
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Not listed
Lead sponsor
Metabolic Solutions Inc.
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 10, 2014 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Food-effect, Drug-Drug Interaction (DDI), and Formulation Bridging Study

NCT03555617
View directory record Official record
Conditions
Inflammatory Bowel Disease
Interventions
TD-1473, Itraconazole
Drug
Lead sponsor
Theravance Biopharma
Industry
Eligibility
19 Years to 55 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Oct 5, 2026, 9:42 AM EDT
Terminated Phase 1 Interventional

Pilot Study to Assess the Effects of AV608 on Irritable Bowel Syndrome

NCT00316550
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS)
Interventions
AV608
Drug
Lead sponsor
Avera Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 25, 2008 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Microbiome Fructan Metabolism and Symptoms in Childhood IBS

NCT02842281
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS)
Interventions
Fructan, Maltodextrin
Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
7 Years to 17 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 22, 2021 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Phase 2Phase 3 Interventional Results available

The Efficacy of AZD1722 in Constipation Predominant Irritable Bowel Syndrome (IBS-C)

NCT01923428
View directory record Official record
Conditions
Constipation Predominant Irritable Bowel Syndrome
Interventions
AZD1722, Placebo
Drug
Lead sponsor
Ardelyx
Industry
Eligibility
18 Years to 75 Years
Enrollment
356 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
4
States / cities
Boulder, Colorado • Greensboro, North Carolina • Winston-Salem, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2020 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Phase 2 Interventional Results available

Does Welchol (Colesevelam Hydrochloride) Improve Colonic Transit in Diarrhea-predominant Irritable Bowel Syndrome (D-IBS)?

NCT00911612
View directory record Official record
Conditions
Irritable Bowel Syndrome, Diarrhea
Interventions
Colesevelam, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 4, 2012 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Analyzing IBS to Identify Biomarkers and Microbiome Signatures

NCT02419963
View directory record Official record
Conditions
Diarrhoea Predominant Irritable Bowel Syndrome, IBS
Interventions
endoscopy for tissue biopsy, Blood Sample, Stool Sample
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 7, 2017 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

SBI in Children With d-IBS

NCT02609529
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Medical Food, Placebo
Other
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
8 Years to 18 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Mar 9, 2017 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Phase 2 Interventional

Recurrent Abdominal Pain in Children

NCT00526903
View directory record Official record
Conditions
Abdominal Pain, Irritable Bowel Syndrome
Interventions
Elimination Diet
Behavioral
Lead sponsor
Baylor College of Medicine
Other
Eligibility
7 Years to 18 Years
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 8, 2016 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Not applicable Interventional

Safety and Tolerability of Serum Derived Bovine Immunoglobulin in Children With Diarrhea Predominant IBS

NCT02358694
View directory record Official record
Conditions
Diarrhea Predominant Irritable Bowel Syndrome
Interventions
Serum-Derived Bovine Immunoglobulin, Placebo
Dietary Supplement · Other
Lead sponsor
Connecticut Children's Medical Center
Other
Eligibility
8 Years to 18 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 18, 2019 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Phase 2 Interventional Results available

Study to Evaluate the Efficacy and Safety of Vibegron Administered Orally for 12 Weeks to Women With Irritable Bowel Syndrome

NCT03806127
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Vibegron, Placebo
Drug
Lead sponsor
Urovant Sciences GmbH
Industry
Eligibility
18 Years to 70 Years · Female only
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
41
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 35 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2021 · Synced Oct 5, 2026, 9:42 AM EDT
Recruiting Not applicable Interventional

Home-based Transcutaneous Auricular Vagus Nerve Stimulation (taVNS) for IBS Pain

NCT06847360
View directory record Official record
Conditions
Pain, Chronic, Irritable Bowel Syndrome, Symptom Cluster
Interventions
Home-based taVNS intervention
Device
Lead sponsor
Yale University
Other
Eligibility
18 Years to 29 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Oct 5, 2026, 9:42 AM EDT
Not yet recruiting Not applicable Interventional

Trans Auricular Vagal Nerve Stimulation in Patients With IBS-C

NCT07662083
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS-C)
Interventions
Transcutaneous Auricular Vagus Nerve Stimulation (ta-VNS), Sham Transcutaneous Auricular Vagus Nerve Stimulation
Device
Lead sponsor
West Virginia University
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Oct 5, 2026, 9:42 AM EDT
Completed No phase listed Observational

Retrospective Study of IBS-D Patients Previously Receiving SBI

NCT02661425
View directory record Official record
Conditions
Diarrhoea Predominant Irritable Bowel Syndrome
Interventions
EnteraGam
Other
Lead sponsor
Entera Health, Inc
Industry
Eligibility
18 Years and older
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
16
States / cities
Greenwich, Connecticut • Hamdon, Connecticut • Coral Springs, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Sep 12, 2016 · Synced Oct 5, 2026, 9:42 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Specimen and Data Collection for a Novel Biomarker Combination for the Differential Diagnosis of Inflammatory Bowel Disease and Irritable Bowel Syndrome.

NCT07471490
View directory record Official record
Conditions
IBD (Inflammatory Bowel Disease), IBS (Irritable Bowel Syndrome), Gastrointestinal Symptoms
Interventions
Not listed
Lead sponsor
DiaSorin Inc.
Industry
Eligibility
2 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Phase 2 Interventional Results available

A Study of the Effect of SYN-010 on Subjects With IBS-C

NCT02495623
View directory record Official record
Conditions
Irritable Bowel Syndrome With Constipation (IBS-C)
Interventions
SYN-010 21 mg, SYN-010 42 mg, Placebo
Drug
Lead sponsor
Theriva Biologics, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 27, 2018 · Synced Oct 5, 2026, 9:42 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Diet and Motility in IBS

NCT07283341
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS)
Interventions
Wireless Patch System
Diagnostic Test
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
8 Years to 18 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Not applicable Interventional Results available

Peer Mentorship: An Intervention To Promote Effective Pain Self-Management In Adolescents

NCT01118988
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS), Functional Abdominal Pain, Fibromyalgia, Complex Regional Pain Syndrome (CRPS), Myofacial Pain, Chronic Daily Headaches, Migraine Headaches, Chronic Pain
Interventions
Mentorship
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
12 Years to 18 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 30, 2016 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Phase 3 Interventional Results available

A Trial of Linaclotide 290 μg in Patients With Irritable Bowel Syndrome With Constipation (IBS-C)

NCT03573908
View directory record Official record
Conditions
Irritable Bowel Syndrome Characterized by Constipation
Interventions
Linaclotide, Placebo
Drug
Lead sponsor
Ironwood Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
614 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
79
States / cities
Huntsville, Alabama • Phoenix, Arizona • Tucson, Arizona + 67 more
Source: ClinicalTrials.gov public record
Updated Dec 1, 2020 · Synced Oct 5, 2026, 9:42 AM EDT
Completed Not applicable Interventional

Use of SBI in IBS Subjects Following a Successful Treatment of Small Intestinal Bacterial Overgrowth

NCT02251483
View directory record Official record
Conditions
Diarrhea Predominant Irritable Bowel Syndrome, Small Intestinal Bacterial Overgrowth
Interventions
Serum-derived bovine immunoglobulin protein isolate (SBI), Placebo
Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 29, 2015 · Synced Oct 5, 2026, 9:42 AM EDT