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ClinicalTrials.gov public records Last synced May 21, 2026, 7:58 PM EDT

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

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Constipation Clear all
Active, not recruiting No phase listed Observational
View directory record Official record
Conditions
Constipation, Pregnancy
Interventions
No Intervention
Other
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 44 Years · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced May 21, 2026, 7:58 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, 7:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Delayed Transit Time, Irregular Bowel Function
Interventions
Yogurt smoothie without probiotic, Yogurt smoothie with probiotic added post fermentation, Yogurt smoothie with probiotic added pre-fermentation, A capsule containing the probiotic
Dietary Supplement
Lead sponsor
Penn State University
Other
Eligibility
18 Years to 40 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 20, 2023 · Synced May 21, 2026, 7:58 PM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Opioid Induced Constipation
Interventions
Polyethylene Glycol 3350, Movantik
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 84 Years
Enrollment
276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
53
States / cities
Huntsville, Alabama • Phoenix, Arizona • Anaheim, California + 46 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2018 · Synced May 21, 2026, 7:58 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Opioid-induced Bowel Dysfunction
Interventions
Lubiprostone, Placebo
Drug
Lead sponsor
Sucampo Pharma Americas, LLC
Industry
Eligibility
18 Years and older
Enrollment
439 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
115
States / cities
Athens, Alabama • Birmingham, Alabama • Foley, Alabama + 89 more
Source: ClinicalTrials.gov public record
Updated Feb 10, 2020 · Synced May 21, 2026, 7:58 PM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Constipation, Impaction, and Bowel Obstruction, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
therapeutic conventional surgery, gastrointestinal complications management/prevention, quality-of-life assessment
Procedure · Other
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older
Enrollment
221 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
34
States / cities
Phoenix, Arizona • Tucson, Arizona • Little Rock, Arkansas + 26 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2023 · Synced May 21, 2026, 7:58 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Chronic Constipation
Interventions
linaclotide acetate, Matching placebo
Drug
Lead sponsor
Ironwood Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
310 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
60
States / cities
Huntsville, Alabama • Tucson, Arizona • Sherwood, Arkansas + 55 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2013 · Synced May 21, 2026, 7:58 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Constipation, Fecal Incontinence
Interventions
Not listed
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 80 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 22, 2018 · Synced May 21, 2026, 7:58 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Healthy, Opioid-induced Constipation
Interventions
TD-1211, Placebo
Drug
Lead sponsor
Theravance Biopharma
Industry
Eligibility
18 Years to 65 Years
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
3
States / cities
Pasadena, California • San Antonio, Texas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 19, 2021 · Synced May 21, 2026, 7:58 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Opioid-induced Constipation
Interventions
Methylnaltrexone bromide, Placebo
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Tarrytown, New York
Source: ClinicalTrials.gov public record
Updated Sep 3, 2019 · Synced May 21, 2026, 7:58 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Constipation
Interventions
Educational practice for HCPs,Dissemination only, Educational practice for HCPs,Spaced Education
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Not listed
Enrollment
101 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced May 21, 2026, 7:58 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Functional Constipation in Children Ages 6-17 Years
Interventions
Placebo, LIN Dose A, LIN Dose B, LIN Dose C, LIN 145 µg
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
6 Years to 17 Years
Enrollment
173 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
60
States / cities
Hot Springs, Arkansas • Little Rock, Arkansas • Anaheim, California + 51 more
Source: ClinicalTrials.gov public record
Updated Jun 18, 2019 · Synced May 21, 2026, 7:58 PM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Dyssynergia, Constipation
Interventions
Fecobionics
Device
Lead sponsor
The California Medical Innovations Institute, Inc.
Other
Eligibility
21 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
2
States / cities
San Diego, California • Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced May 21, 2026, 7:58 PM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Parkinson's Disease, Gastroparesis, Constipation
Interventions
RQ-00000010, Placebo
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Henrico, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 8, 2019 · Synced May 21, 2026, 7:58 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Healthy Volunteers, Constipation
Interventions
Cortical Evoked Potentials, Transcranial motor evoked potentials, Translumbosacral motor evoked potentials
Procedure
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 85 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2018
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 22, 2018 · Synced May 21, 2026, 7:58 PM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Parkinson Disease, Constipation
Interventions
Active Investigational Treatment ENT-01
Drug
Lead sponsor
Enterin Inc.
Industry
Eligibility
30 Years to 90 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
18
States / cities
Fountain Valley, California • Pasadena, California • Englewood, Colorado + 15 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2024 · Synced May 21, 2026, 7:58 PM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Chronic Constipation, Functional Constipation
Interventions
Placebo Capsule, YKP10811 Drug Product Capsule
Drug
Lead sponsor
SK Life Science, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 3, 2014 · Synced May 21, 2026, 7:58 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Spinal Cord Injuries, Constipation, Fecal Incontinence, Neurogenic Bowel
Interventions
Combination of Neostigmine and Glycopyrrolate, I-Box by Dynatronics
Drug · Device
Lead sponsor
James J. Peters Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 70 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced May 21, 2026, 7:58 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Postoperative Pain, Nausea and Vomiting, Postoperative, Dizziness, Constipation, Duration of Response, Narcotics Consumption, Pain After Surgery
Interventions
Low, non-weight based dose of Dexamethasone and Dexmedetomidine in peripheral nerve blocks, Ropivacaine with low, non weight based Dexamethasone additive
Drug
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced May 21, 2026, 7:58 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, 7:58 PM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Opioid-induced Constipation
Interventions
ALKS 37, Placebo
Drug
Lead sponsor
Alkermes, Inc.
Industry
Eligibility
18 Years and older
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
20
States / cities
Mesa, Arizona • Phoenix, Arizona • National City, California + 17 more
Source: ClinicalTrials.gov public record
Updated Jun 12, 2012 · Synced May 21, 2026, 7:58 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Chronic Idiopathic Constipation
Interventions
BLI400 Laxative, Lubiprostone
Drug
Lead sponsor
Braintree Laboratories
Industry
Eligibility
18 Years and older
Enrollment
459 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
50
States / cities
Mobile, Alabama • Tucson, Arizona • Anaheim, California + 40 more
Source: ClinicalTrials.gov public record
Updated Jul 26, 2020 · Synced May 21, 2026, 7:58 PM EDT
Completed Phase 4 Interventional
View directory record Official record
Conditions
Constipation
Interventions
polyethyleneglycol3350
Drug
Lead sponsor
Braintree Laboratories
Industry
Eligibility
18 Years to 64 Years
Enrollment
239 participants
Timeline
Started 2004
U.S. locations
25
States / cities
Mobile, Alabama • Glendale, Arizona • Anaheim, California + 21 more
Source: ClinicalTrials.gov public record
Updated Feb 6, 2013 · Synced May 21, 2026, 7:58 PM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Functional Constipation
Interventions
Pradigastat Tablets 20mg, Pradigastat Tablets 40mg, Pradigastat Tablets 20mg matching Placebo, Pradigastat Tablets 40mg matching Placebo
Drug
Lead sponsor
Anji Pharma
Industry
Eligibility
18 Years to 70 Years
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
5
States / cities
Meridian, Idaho • Evanston, Illinois • Las Vegas, Nevada + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 23, 2022 · Synced May 21, 2026, 7:58 PM EDT