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ClinicalTrials.gov public records Last synced Oct 21, 2026, 7:18 PM EDT

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Showing 121–144 of 352 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Functional Colonic Disease Clear all
Recruiting Phase 2 Interventional

Efficacy of Rifaximin With NAC in IBS-D

NCT06727422
View directory record Official record
Conditions
IBS (Irritable Bowel Syndrome), IBS-D (Diarrhea-predominant)
Interventions
rifaximin 66mg + N-acetylcysteine 560mg three times daily, RNIB21 containing rifaximin 132mg + N-acetylcysteine 560mg three times daily, Placebo
Drug
Lead sponsor
Mark Pimentel, MD
Other
Eligibility
18 Years and older
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Oct 21, 2026, 7:18 PM 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 21, 2026, 7:18 PM EDT
Completed Phase 2 Interventional

A Study of BMS-562086 in Patients With Irritable Bowel Syndrome

NCT00399438
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Placebo, BMS-562086
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 26, 2008 · Synced Oct 21, 2026, 7:18 PM EDT
Terminated Phase 3 Interventional Results available

A Study to Evaluate LB1148 for Return of Bowel Function in Subjects Undergoing Bowel Resection

NCT05470387
View directory record Official record
Conditions
Ileus, Gastro-Intestinal Disorder
Interventions
LB1148, Placebo
Drug
Lead sponsor
Palisade Bio
Industry
Eligibility
18 Years to 80 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
23
States / cities
Mobile, Alabama • La Jolla, California • Orange, California + 19 more
Source: ClinicalTrials.gov public record
Updated Jun 13, 2024 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Phase 1 Interventional

A Lactation Study in Women Who Are Breastfeeding or Pumping and Are Receiving Linaclotide Therapeutically

NCT02220348
View directory record Official record
Conditions
Breast Feeding, Constipation, Irritable Bowel Syndrome
Interventions
linaclotide
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
2
States / cities
Iowa City, Iowa • Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Dec 19, 2020 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Not applicable Interventional

Neuroimaging and Biomarkers in Chronic Visceral Pain

NCT01602575
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Mindfulness based Stress Reduction Training (MBSR)
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 50 Years
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 14, 2018 · Synced Oct 21, 2026, 7:18 PM EDT
Completed No phase listed Observational

S1013: Validation of Cancer Questionnaire for Skin Toxicities in Patients With Colorectal Cancer or Lung Cancer Receiving Cetuximab, Panitumumab, or Erlotinib Hydrochloride

NCT01416688
View directory record Official record
Conditions
Colorectal Cancer, Dermatologic Complications, Lung Cancer, Therapy-related Toxicity
Interventions
assessment of therapy complications, psychosocial assessment and care, quality-of-life assessment
Procedure
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years to 120 Years
Enrollment
146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2019
U.S. locations
113
States / cities
Tucson, Arizona • Castro Valley, California • Duarte, California + 78 more
Source: ClinicalTrials.gov public record
Updated Dec 15, 2022 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mediterranean Diet and the Gut Microbiome

NCT03269032
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
American Diet, Mediterranean-style Diet
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 22, 2023 · Synced Oct 21, 2026, 7:18 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Proteomics of Cerebrospinal Fluid in Chronic Fatigue Syndrome

NCT00810329
View directory record Official record
Conditions
Chronic Fatigue Syndrome, Fibromyalgia, Gulf War Illness, Multiple Chemical Sensitivity, Interstitial Cystitis, Irritable Bowel Syndrome
Interventions
Not listed
Lead sponsor
Georgetown University
Other
Eligibility
21 Years to 65 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 25, 2014 · Synced Oct 21, 2026, 7:18 PM EDT
Completed No phase listed Observational

Development of a Questionnaire to Measure Hypervigilance for Visceral Pain

NCT01166802
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Not listed
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 21, 2010 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Not applicable Interventional

Brain Imaging and Pain in Irritable Bowel Syndrome

NCT00065754
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
placebo
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 20, 2011 · Synced Oct 21, 2026, 7:18 PM EDT
Completed No phase listed Observational

Chromogranin A as Blood Marker in Cancer Patients

NCT03817866
View directory record Official record
Conditions
Gastric Neoplasms, Pancreatic Neoplasms, Small Intestinal Neoplasms, Colorectal Neoplasms
Interventions
BRAHMS CgA II KRYPTOR
Diagnostic Test
Lead sponsor
Brahms AG
Industry
Eligibility
18 Years to 85 Years
Enrollment
175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
3
States / cities
Palo Alto, California • Rochester, Minnesota • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 20, 2022 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Phase 2 Interventional

A Safety and Efficacy Study of Daikenchuto (TU-100) to Relieve Abdominal Bloating in Female Subjects With Irritable Bowel Syndrome

NCT02074579
View directory record Official record
Conditions
Irritable Bowel Syndrome in Females
Interventions
TU-100, Placebo
Drug
Lead sponsor
Tsumura USA
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 2, 2017 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Not applicable Interventional

Physical Activity Intervention for Older Patients During Chemotherapy for Colorectal Cancer

NCT02191969
View directory record Official record
Conditions
Colorectal Cancer, Fatigue
Interventions
Walk With Ease
Behavioral
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
60 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 1, 2020 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Phase 2 Interventional

Efficacy, Safety and Tolerability of DNK333 (25 and 100 mg Bid) in Women With Diarrhea-Predominant Irritable Bowel Syndrome (IBS-D)

NCT00699166
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
DNK333
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older · Female only
Enrollment
135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
29
States / cities
Anniston, Alabama • Huntsville, Alabama • Northport, Alabama + 26 more
Source: ClinicalTrials.gov public record
Updated Jun 17, 2008 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Phase 4 Interventional

Effect of Tenapanor on the Metagenomics and Metabolomics of Patients With Irritable Bowel Syndrome With Constipation

NCT05995899
View directory record Official record
Conditions
IBS, IBS - Irritable Bowel Syndrome
Interventions
Tenapanor
Drug
Lead sponsor
Kyle Staller, MD, MPH
Other
Eligibility
18 Years to 75 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Oct 21, 2026, 7:18 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 22, 2023 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Not applicable Interventional Results available

Irritable Bowel Syndrome Hypnotherapy

NCT01248013
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
gut focused hypnotherapy
Behavioral
Lead sponsor
Mind-Body Digestive Center
Other
Eligibility
20 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 6, 2011 · Synced Oct 21, 2026, 7:18 PM EDT
Completed No phase listed Observational

Neurological Effects of Chemotherapy and Radiation Therapy in Patients With Colon Cancer

NCT00410618
View directory record Official record
Conditions
Cognitive/Functional Effects, Colorectal Cancer, Long-term Effects Secondary to Cancer Therapy in Adults
Interventions
cognitive assessment, magnetic resonance imaging, management of therapy complications
Procedure
Lead sponsor
University of Arizona
Other
Eligibility
Not listed
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 6, 2018 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Not applicable Interventional Results available

Effects of Low FODMAP Diet on Colonic Epithelial Physiology in Diarrhea-predominant Irritable Bowel Syndrome

NCT04542018
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
a low FODMAP diet for 4 weeks
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
2
States / cities
Boston, Massachusetts • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 30, 2025 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Phase 2 Interventional

Diarrhea Predominant Irritable Bowel Syndrome in Females

NCT00461526
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
crofelemer
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
43
States / cities
Huntsville, Alabama • Chandler, Arizona • Tucson, Arizona + 36 more
Source: ClinicalTrials.gov public record
Updated Nov 25, 2019 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Phase 2 Interventional Results available

Efficacy of Mesalamine in Diarrhea-predominant Irritable Bowel Syndrome (dIBS)

NCT01327300
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Mesalamine, Placebo
Drug · Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 65 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 12, 2014 · Synced Oct 21, 2026, 7:18 PM EDT
Completed Not applicable Interventional

Precision Pain Self-Management in Young Adults With Irritable Bowel Syndrome

NCT03332537
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Personalized IBS Pain SM
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 29 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
2
States / cities
Farmington, Connecticut • Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 4, 2019 · Synced Oct 21, 2026, 7:18 PM EDT
Recruiting Not applicable Interventional

At-Home Genital Nerve Stimulation for SCI Bowel

NCT06836739
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
Genital nerve stimulation
Device
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 21, 2026, 7:18 PM EDT