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ClinicalTrials.gov public records Last synced Oct 20, 2026, 10:03 PM EDT

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Showing 193–216 of 405 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Constipation Clear all
Recruiting Not applicable Interventional

Management of Dyssynergic Defecation

NCT07225803
View directory record Official record
Conditions
Dyssynergic Defecation, Constipation
Interventions
Biofeedback, Inspiratory muscle training (IMT)
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 10, 2025 · Synced Oct 20, 2026, 10:03 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Comparison Trial of Enema vs. PEG 3350 for Constipation

NCT00467350
View directory record Official record
Conditions
Constipation
Interventions
PEG 3350, milk and molasses enema
Drug
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
1 Year to 17 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 2, 2020 · Synced Oct 20, 2026, 10:03 PM EDT
Completed No phase listed Observational

Impact of Improving Gastrointestinal Symptoms on Autism Symptoms and Oxidative Stress

NCT02442115
View directory record Official record
Conditions
Autistic Disorder, Constipation, Gastrointestinal Diseases
Interventions
Treatment of Functional Constipation by
Other
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
5 Years to 17 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
2
States / cities
Los Angeles, California • Santa Ana, California
Source: ClinicalTrials.gov public record
Updated Dec 20, 2024 · Synced Oct 20, 2026, 10:03 PM EDT
Terminated Phase 3 Interventional Results available

A Phase 3 Study to Confirm the Efficacy and Safety of Linzagolix to Treat Endometriosis-associated Pain

NCT03986944
View directory record Official record
Conditions
Endometriosis
Interventions
75 mg linzagolix tablet, 200 mg linzagolix tablet, Add-back capsule (E2 1 mg / NETA 0.5 mg), Placebo tablet to match 75 mg linzagolix tablet, Placebo tablet to match 200 mg linzagolix tablet, Placebo capsule to match Add-back capsule
Drug
Lead sponsor
Kissei Pharmaceutical Co., Ltd.
Industry
Eligibility
18 Years to 49 Years · Female only
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
107
States / cities
Birmingham, Alabama • Mesa, Arizona • Phoenix, Arizona + 79 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2025 · Synced Oct 20, 2026, 10:03 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Predictors of Constipation in Healthy Children

NCT00398021
View directory record Official record
Conditions
Constipation
Interventions
Not listed
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
5 Years to 8 Years
Enrollment
1,430 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
11
States / cities
Madison, Wisconsin • Stoughton, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 5, 2015 · Synced Oct 20, 2026, 10:03 PM EDT
Completed Not applicable Interventional

Endoscopic Mucosal Resection for the Diagnosis of a-Ganglionosis, a Controlled Prospective Trial (EDGE Trial)

NCT01515501
View directory record Official record
Conditions
Constipation, Hirschsprung Disease
Interventions
Endoscopic mucosal resection (EMR)
Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
10 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 16, 2018 · Synced Oct 20, 2026, 10:03 PM EDT
Withdrawn No phase listed Observational

A Pilot Study to Explore the Role of Gut Flora in Chronic Constipation

NCT04148248
View directory record Official record
Conditions
Constipation, Constipation Chronic Idiopathic, Constipation - Functional, Constipation (Excl Faecal Impaction)
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 5, 2025 · Synced Oct 20, 2026, 10:03 PM EDT
Enrolling by invitation Phase 3 Interventional

Safety Study of Tenapanor for the Treatment of Pediatric Patients (6 to Less Than 18 Years Old) With IBS-C

NCT05905926
View directory record Official record
Conditions
Irritable Bowel Syndrome With Constipation (IBS-C)
Interventions
Tenapanor
Drug
Lead sponsor
Ardelyx
Industry
Eligibility
6 Years to 18 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2031
U.S. locations
27
States / cities
Foley, Alabama • Anaheim, California • Doral, Florida + 24 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 20, 2026, 10:03 PM EDT
Completed Phase 3 Interventional Results available

Long Term Safety of Naldemedine

NCT01965652
View directory record Official record
Conditions
Opioid-induced Constipation
Interventions
Naldemedine, Placebo
Drug
Lead sponsor
Shionogi
Industry
Eligibility
18 Years to 80 Years
Enrollment
1,246 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
99
States / cities
Birmingham, Alabama • Mobile, Alabama • Chandler, Arizona + 96 more
Source: ClinicalTrials.gov public record
Updated Apr 18, 2018 · Synced Oct 20, 2026, 10:03 PM EDT
Terminated Phase 4 Interventional Results available

Effect of Lidocaine and Esmolol to Improve the Quality of Recovery

NCT01114997
View directory record Official record
Conditions
Pain, Constipation, Nausea, Vomiting
Interventions
Lidocaine, Esmolol, Lidocaine + Esmolol (Combo)
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 3, 2016 · Synced Oct 20, 2026, 10:03 PM EDT
Completed Phase 2 Interventional Results available

Dose-range-finding, Phase 2 Trial of Oral Linaclotide Acetate Administered to Patients With Chronic Constipation

NCT00402337
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 5, 2013 · Synced Oct 20, 2026, 10:03 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Alpha-1 Antagonist, Stress and Relaxation on Anorectal Functions

NCT01834729
View directory record Official record
Conditions
Constipation
Interventions
Alfuzosin, Placebo
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 29, 2019 · Synced Oct 20, 2026, 10:03 PM EDT
Completed Not applicable Interventional

Biofeedback Treatment for Functional Constipation

NCT00502957
View directory record Official record
Conditions
Constipation
Interventions
Biofeedback
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
Not listed
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 25, 2010 · Synced Oct 20, 2026, 10:03 PM EDT
Completed Phase 4 Interventional

Polyethyleneglycol3350 vs Tegaserod in Treatment of Patients With Chronic Constipation

NCT00153140
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 7, 2013 · Synced Oct 20, 2026, 10:03 PM EDT
Suspended No phase listed Observational Accepts healthy volunteers

A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Disease

NCT04031469
View directory record Official record
Conditions
Gut Microbiome, Gastrointestinal Microbiome, Autism, Autism Spectrum Disorder, Autism Spectrum Disorder High-Functioning, Alzheimer Disease, Alzheimer Dementia (AD), Alzheimer Dementia, Alzheimer Disease (AD), Crohn, Crohn Colitis, Crohn Disease (CD), Crohn Disease Colon, Myalgic Encephalomyelitis, ME/CFS, Myalgic Encephalomyelitis (ME), Myalgic Encephalomyelitis/Chronic Fatigue Syndrome, Psoriasis, Psoriasis Annularis, Psoriasis Chronic, Chronic Urinary Tract Infection, Ulcerative Colitis (Disorder), Ulcerative Colitis (UC), Ulcerative Colitis Acute, Ulcerative Colitis Chronic, Multiple Sclerosis, Multiple Sclerosis (MS) - Relapsing-remitting, Multiple Sclerosis (MS) Primary Progressive, Constipation Chronic Idiopathic, Constipation, Celiac, Celiac Disease, Celiac Sprue, Lyme Arthritis, Lyme Borreliosis, Nervous System, Lyme Disease, Chronic, Cholesterol, Cholesterol Level, High, Cancer, Colon Cancer, Amyotrophic Lateral Sclerosis (ALS), Amyotrophic Lateral Sclerosis, Rheumatoid Arthritis (RA), Rheumatoid Arthritis - Rheumatism, Chronic Fatigue Syndrome (CFS), PARKINSON DISEASE (Disorder), Parkinson Disease, Parkinson Disease (PD), Depression, Major Depressive Disorder (MDD), Depression Disorder, Depression in Adults, Anxiety, Anxiety Disorder Generalized, Obsessive Compulsive Disorder (OCD), Obsessive Compulsive Disorder OCD, Obsessive - Compulsive Disorder, Bipolar, Bipolar 1 Disorder, Bipolar Disorder (BD), Bipolar Disorder I and II, Bipolar and Related Disorders, Migraine, Migraine Disorder, Diabetes (DM), Diabetes, Lupus, Lupus Erythematosus, Epidermolysis Bullosa (EB), Mesothelioma, Mesothelioma Malignant, IBS (Irritable Bowel Syndrome), Irritable Bowel, IBS - Irritable Bowel Syndrome, Irritable Bowel Syndrome (IBS), Eczema, Eczema Atopic Dermatitis, Acne, Myasthaenia Gravis, Gout
Interventions
There is no intervention in this study
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
12 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2030
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 20, 2026, 10:03 PM EDT
Withdrawn No phase listed Observational

Surveying The Outcomes Of Lubiprostone (The STOOL Study) in Nursing Home Residents

NCT00985569
View directory record Official record
Conditions
Constipation
Interventions
Not listed
Lead sponsor
Synergy Health Solutions
Other
Eligibility
18 Years and older
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
3
States / cities
Brooksville, Florida • Casselberry, Florida • Melbourne, Florida
Source: ClinicalTrials.gov public record
Updated Nov 23, 2010 · Synced Oct 20, 2026, 10:03 PM EDT
Completed Phase 2Phase 3 Interventional Results available

The Plecanatide Chronic Idiopathic Constipation (CIC) Study

NCT01429987
View directory record Official record
Conditions
Chronic Idiopathic Constipation
Interventions
plecanatide, Placebo
Drug · Other
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
951 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
121
States / cities
Mobile, Alabama • Chandler, Arizona • Tucson, Arizona + 100 more
Source: ClinicalTrials.gov public record
Updated May 28, 2019 · Synced Oct 20, 2026, 10:03 PM EDT
Terminated Phase 2 Interventional Results available

Orally Administered ENT-01 for Parkinson's Disease-Related Constipation Follow-on Safety "Roll-over" Study (Rollover)

NCT04483479
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 19, 2024 · Synced Oct 20, 2026, 10:03 PM EDT
Completed Not applicable Interventional Results available

A Colonic Tube to Improve Bowel Function in Spinal Cord Injury

NCT00345397
View directory record Official record
Conditions
Constipation, Fecal Incontinence, Spinal Cord Injury
Interventions
Percutaneous endoscopic colostomy (PEC) tube
Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2018
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 1, 2019 · Synced Oct 20, 2026, 10:03 PM EDT
Completed No phase listed Observational

Constipation in Pediatric Cancer Patients Receiving Vinca Alkaloids or Narcotics

NCT00032682
View directory record Official record
Conditions
Constipation, Neoplasms
Interventions
Not listed
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
Not listed
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 20, 2026, 10:03 PM EDT
Completed Not applicable Interventional

Biofeedback for Fecal Incontinence

NCT00124904
View directory record Official record
Conditions
Fecal Incontinence
Interventions
Biofeedback, Kegel exercises
Behavioral
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
16 Years and older
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2006
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 13, 2010 · Synced Oct 20, 2026, 10:03 PM EDT
Completed Phase 3 Interventional Results available

An Open-label, Long-term Safety Study of Linaclotide in Patients With Chronic Constipation or Irritable Bowel Syndrome With Constipation

NCT00730171
View directory record Official record
Conditions
Irritable Bowel Syndrome With Constipation, Chronic Constipation
Interventions
Linaclotide
Drug
Lead sponsor
Ironwood Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,743 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
116
States / cities
Birmingham, Alabama • Huntsville, Alabama • Chandler, Arizona + 106 more
Source: ClinicalTrials.gov public record
Updated Feb 19, 2018 · Synced Oct 20, 2026, 10:03 PM EDT
Completed Phase 2 Interventional Results available

A Phase 2, Double-Blind, Multiple-Dose Escalation Study to Evaluate NKTR-118 (Oral PEG-Naloxol) in Patients With Opioid-Induced Constipation (OIC)

NCT00600119
View directory record Official record
Conditions
Opioid Induced Constipation (OIC)
Interventions
placebo, NKTR-118
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
207 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
33
States / cities
Huntsville, Alabama • Pinson, Alabama • Tucson, Arizona + 30 more
Source: ClinicalTrials.gov public record
Updated Jun 12, 2015 · Synced Oct 20, 2026, 10:03 PM EDT
Completed Phase 1 Interventional Results available

Effect of Lubiprostone on Methanogenesis and Bowel Function in Chronic Constipation.

NCT01190020
View directory record Official record
Conditions
Chronic Constipation, Methanogenesis
Interventions
Lubiprostone, Lubiprostone Control
Drug
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
2
States / cities
Iowa City, Iowa • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 15, 2019 · Synced Oct 20, 2026, 10:03 PM EDT