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ClinicalTrials.gov public records Last synced May 22, 2026, 5:47 AM EDT

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

Showing 1–22 of 22 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Irritable Bowel Syndrome Characterized by Constipation Clear all
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 22, 2026, 5:47 AM 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Withdrawn Not applicable Interventional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 22, 2026, 5:47 AM 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 22, 2026, 5:47 AM 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 22, 2026, 5:47 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Other Constipation, Irritable Bowel Syndrome
Interventions
Lubiprostone
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 75 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 16, 2013 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 3 Interventional Results available
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 Nov 30, 2020 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Constipation Predominant Irritable Bowel Syndrome
Interventions
Tenapanor, Placebo
Drug
Lead sponsor
Ardelyx
Industry
Eligibility
18 Years to 75 Years
Enrollment
606 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
111
States / cities
Birmingham, Alabama • Huntsville, Alabama • Chandler, Arizona + 92 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2020 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
MD-1100 Acetate
Drug
Lead sponsor
Ironwood Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 19, 2006 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Irritable Bowel Syndrome Characterized by Constipation
Interventions
Plecanatide, Placebo
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
428 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
99
States / cities
Birmingham, Alabama • Dothan, Alabama • Glendale, Arizona + 83 more
Source: ClinicalTrials.gov public record
Updated May 27, 2019 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 2Phase 3 Interventional Results available
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 7, 2020 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Irritable Bowel Syndrome Characterized by Constipation
Interventions
Plecanatide, Placebo
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 85 Years
Enrollment
1,054 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
155
States / cities
Athens, Alabama • Birmingham, Alabama • Dothan, Alabama + 142 more
Source: ClinicalTrials.gov public record
Updated Jun 13, 2019 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Irritable Bowel Syndrome Constipation Predominant
Interventions
ROSE-010, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 30, 2013 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Constipation Predominant Irritable Bowel Syndrome
Interventions
Tenapanor, Placebo
Drug
Lead sponsor
Ardelyx
Industry
Eligibility
18 Years to 75 Years
Enrollment
593 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
117
States / cities
Dothan, Alabama • Foley, Alabama • Huntsville, Alabama + 98 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2020 · Synced May 22, 2026, 5:47 AM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Irritable Bowel Syndrome Characterized by Constipation
Interventions
Low FODMAP diet/PEG 3350, sham diet/PEG 3350
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 3, 2025 · Synced May 22, 2026, 5:47 AM EDT
Terminated Phase 3 Interventional
View directory record Official record
Conditions
Constipation-Predominant Irritable Bowel Syndrome
Interventions
Renzapride
Drug
Lead sponsor
Alizyme
Industry
Eligibility
18 Years and older · Female only
Enrollment
939 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
126
States / cities
Huntsville, Alabama • Chandler, Arizona • Phoenix, Arizona + 112 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2008 · Synced May 22, 2026, 5:47 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Constipation-predominant Irritable Bowel Syndrome
Interventions
Lubiprostone, Placebo
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 11, 2011 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Irritable Bowel Syndrome Characterized by Constipation
Interventions
Plecanatide, Placebo
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 85 Years
Enrollment
1,135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
191
States / cities
Birmingham, Alabama • Guntersville, Alabama • Huntsville, Alabama + 157 more
Source: ClinicalTrials.gov public record
Updated Jun 13, 2019 · Synced May 22, 2026, 5:47 AM EDT
Withdrawn Phase 2 Interventional
View directory record Official record
Conditions
Irritable Bowel Syndrome Characterized by Constipation
Interventions
Botanical Tincture, Placebo
Drug · Other
Lead sponsor
Stamford Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Stamford, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 28, 2024 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Constipation Predominant Irritable Bowel Syndrome
Interventions
Tenapanor
Drug
Lead sponsor
Ardelyx
Industry
Eligibility
18 Years to 75 Years
Enrollment
312 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Sep 8, 2020 · Synced May 22, 2026, 5:47 AM EDT
Withdrawn No phase listed Observational
View directory record Official record
Conditions
Irritable Bowel, Irritable Bowel Syndrome, Irritable Bowel Syndrome With Diarrhea, Irritable Bowel Syndrome Mixed, Irritable Bowel Syndrome With Constipation, Irritable Bowel Syndrome Without Diarrhea, Irritable Bowel Syndrome Aggravated, Irritable Bowel Syndrome Characterized by Constipation, Irritable Bowel Syndrome Characterised by Alternating Bowel Habit
Interventions
No intervention
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2030
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Constipation Predominant Irritable Bowel Syndrome
Interventions
RDX5791
Drug
Lead sponsor
Ardelyx
Industry
Eligibility
18 Years to 75 Years
Enrollment
186 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
16
States / cities
San Diego, California • Jupiter, Florida • Pinellas Park, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Oct 14, 2019 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Irritable Bowel Syndrome Characterized by Constipation
Interventions
Linaclotide 290 micrograms, Matching placebo
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years and older
Enrollment
803 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
111
States / cities
Birmingham, Alabama • Hueytown, Alabama • Huntsville, Alabama + 94 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2013 · Synced May 22, 2026, 5:47 AM EDT