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ClinicalTrials.gov public records Last synced May 21, 2026, 8:48 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 76 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Irritable Bowel Syndrome-Constipation Clear all
Enrolling by invitation No phase listed Observational
View directory record Official record
Conditions
Inflammatory Bowel Disease (IBD), Irritable Bowel Syndrome (IBS), Celiac Disease, Diarrhea, Constipation, Microbiome, Crohn's Disease, UC - Ulcerative Colitis, Microscopic Colitis, Functional Dyspepsia
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
4,001 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 24, 2025 · Synced May 21, 2026, 8:48 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Irritable Bowel Syndrome, Ulcerative Colitis, Crohn Disease, Indeterminate Colitis, Chronic Diarrhea, Celiac Disease, Diverticulitis, Abdominal Pain, Distension, Weight Loss, Food Intolerance, Constipation
Interventions
Stool collection
Diagnostic Test
Lead sponsor
DiaSorin Inc.
Industry
Eligibility
4 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
13
States / cities
Dothan, Alabama • Little Rock, Arkansas • Mission Hills, California + 10 more
Source: ClinicalTrials.gov public record
Updated Feb 6, 2019 · Synced May 21, 2026, 8:48 PM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Pregabalin, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 2, 2014 · Synced May 21, 2026, 8:48 PM EDT
Withdrawn Not applicable Interventional
View directory record Official record
Conditions
Constipation, Constipation by Outlet Obstruction, Constipation-predominant Irritable Bowel Syndrome, Constipation - Functional
Interventions
Standard Physical Therapy Care, Aerobic and Inspiratory Muscle Training
Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Coral Gables, Florida
Source: ClinicalTrials.gov public record
Updated May 11, 2023 · Synced May 21, 2026, 8:48 PM EDT
Completed Phase 2 Interventional Results available
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 May 21, 2026, 8:48 PM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Rectal Hypersensitivity, Irritable Bowel Syndrome-Constipation
Interventions
Sensory Adaptation Training, Escitalopram Therapy
Procedure · Drug
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2019
U.S. locations
2
States / cities
Augusta, Georgia • Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Aug 5, 2020 · Synced May 21, 2026, 8:48 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
curcumin, placebo
Dietary Supplement
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 10, 2015 · Synced May 21, 2026, 8:48 PM EDT
Terminated Phase 2 Interventional Results available
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 May 21, 2026, 8:48 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Chronic Idiopathic Constipation
Interventions
SP-304 0.3 mg, SP-304 1.0 mg, SP-304 3.0 mg, SP-304 9.0 mg, Placebo
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
14
States / cities
Mesa, Arizona • Tucson, Arizona • Anaheim, California + 11 more
Source: ClinicalTrials.gov public record
Updated Jan 1, 2020 · Synced May 21, 2026, 8:48 PM EDT
Terminated Phase 3 Interventional
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 May 21, 2026, 8:48 PM EDT
Completed Not applicable Interventional Results available
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 May 21, 2026, 8:48 PM EDT
Completed No phase listed Observational
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 27, 2014 · Synced May 21, 2026, 8:48 PM EDT
Completed Phase 3 Interventional Results available
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 26, 2016 · Synced May 21, 2026, 8:48 PM EDT
Completed Phase 4 Interventional
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 11, 2026 · Synced May 21, 2026, 8:48 PM EDT
Completed Phase 2 Interventional Results available
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 26, 2018 · Synced May 21, 2026, 8:48 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Constipation-predominant Irritable Bowel Syndrome
Interventions
Sodium chenodeoxycholate (NaCDC), Placebo
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 1, 2012 · Synced May 21, 2026, 8:48 PM EDT
Completed Phase 2 Interventional
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 7, 2016 · Synced May 21, 2026, 8:48 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available
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 20, 2019 · Synced May 21, 2026, 8:48 PM EDT
Completed Phase 1 Interventional
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 18, 2020 · Synced May 21, 2026, 8:48 PM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Irritable Bowel Syndrome With Constipation
Interventions
Virtual Reality
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 19, 2026 · Synced May 21, 2026, 8:48 PM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Lubiprostone, Placebo
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
62 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 Sep 15, 2011 · Synced May 21, 2026, 8:48 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Blautix, Placebo
Biological · Other
Lead sponsor
4D pharma plc
Industry
Eligibility
18 Years to 70 Years
Enrollment
366 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
24
States / cities
Huntsville, Alabama • Phoenix, Arizona • North Hollywood, California + 21 more
Source: ClinicalTrials.gov public record
Updated Jan 10, 2022 · Synced May 21, 2026, 8:48 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Digestive Disorders, Irritable Bowel Syndrome, Constipation, Diarrhea
Interventions
Not listed
Lead sponsor
Logan College of Chiropractic
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Chesterfield, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 14, 2016 · Synced May 21, 2026, 8:48 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS)
Interventions
Not listed
Lead sponsor
Baylor College of Medicine
Other
Eligibility
7 Years to 12 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 5, 2013 · Synced May 21, 2026, 8:48 PM EDT