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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Gut Health Clear all
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Large-Scale Implementation of a Decision Aid About Colorectal Cancer Screening

NCT06597955
View directory record Official record
Conditions
Colorectal Cancer Screening
Interventions
Not listed
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Jul 22, 2026, 5:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Integrating Targeted MedlinePlus Health Prescriptions Into Clinic Practice Workflow

NCT00634608
View directory record Official record
Conditions
Allergic Rhinitis, Asthma, Back Pain, Benign Prostatic Hypertrophy, Bursitis, Depression, Anxiety, Diabetes Mellitus, Esophageal Reflux, HIV Infections, Hyperlipidemia, Hypertension, Insomnia, Irritable Bowel Syndrome, Obesity, Osteoporosis (Senile), Shoulder Pain, Sinusitis, Symptomatic Menopause, Urinary Incontinence, Urinary Tract Infection, Vaginitis
Interventions
Health Information Prescription
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years and older
Enrollment
224 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 29, 2016 · Synced Jul 22, 2026, 5:05 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Improving Survivorship Among Minority Cancer Dyads

NCT04685551
View directory record Official record
Conditions
Cancer, Breast Cancer, Colon Cancer, Caregiver Burnout, Lung Cancer
Interventions
Change in knowledge, motivation, skills, and resources
Behavioral
Lead sponsor
Charles Drew University of Medicine and Science
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 25, 2022 · Synced Jul 22, 2026, 5:05 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Effects of Triphala and VSL#3 Probiotic Supplementation on Stool Microbiome Profiles and Inflammation

NCT03907501
View directory record Official record
Conditions
Human Microbiome
Interventions
Synbiotic, Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
65 Years and older
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 5, 2023 · Synced Jul 22, 2026, 5:05 AM EDT
Completed No phase listed Observational

Health Behaviors in Patients Who Have Finished Treatment for Stage I, Stage II, or Stage III Colorectal Cancer

NCT00966667
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Not listed
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
21 Years and older
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2019
U.S. locations
14
States / cities
Camden, New Jersey • Edison, New Jersey • Freehold, New Jersey + 10 more
Source: ClinicalTrials.gov public record
Updated Sep 9, 2019 · Synced Jul 22, 2026, 5:05 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Peanut Butter on Gut and Metabolic Health

NCT06916936
View directory record Official record
Conditions
Dysbiosis
Interventions
Creamy Richards 100% Peanuts! Creamy Natural Peanut Butter, Cadbury Milk Chocolate Spread
Other
Lead sponsor
Florida State University
Other
Eligibility
6 Years to 13 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Jul 22, 2026, 5:05 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

An 8-Week Study Evaluating Gut and Digestive Health After Use of a Dietary Supplement System

NCT07421596
View directory record Official record
Conditions
Gastrointestinal Symptoms, Digestive Health, Gut Health
Interventions
PhytoPower 1 and PhytoPower 2
Dietary Supplement
Lead sponsor
SF Research Institute, Inc.
Network
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Jul 22, 2026, 5:05 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

CHOICE: Communicating Health Options Through Information and Cancer Education

NCT00134589
View directory record Official record
Conditions
Colorectal Neoplasms
Interventions
Academic Detailing (Medical Practices)+Decision Aids (Patients)
Behavioral
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
52 Years to 75 Years
Enrollment
450 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 3, 2009 · Synced Jul 22, 2026, 5:05 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Implementation of a ColoRectal Cancer Screening Tool in US Primary Care Practices - Usual Quality Improvement (10 Clinics) vs Normalization Process Theory-Participatory Learning in Action (10 Clinics)

NCT06682650
View directory record Official record
Conditions
Colorectal Carcinoma
Interventions
NPT-PLA, Usual Quality Improvement
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
45 Years to 75 Years
Enrollment
2,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Jul 22, 2026, 5:05 AM EDT
Not yet recruiting Not applicable Interventional

Fermented Foods and Bowel Health in SCI

NCT07640152
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
fermented foods, Control diet, Sitz Marker Test
Other · Device
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 70 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Jul 22, 2026, 5:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Exploratory Investigation of a Supplement to Promote Gut Health

NCT05831527
View directory record Official record
Conditions
Gastrointestinal Symptoms, Exercise Performance
Interventions
ARMRA™ Bovine Colostrum
Drug
Lead sponsor
Armra
Industry
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Apr 25, 2023 · Synced Jul 22, 2026, 5:05 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Polyphenols and Cognitive Decline

NCT06507254
View directory record Official record
Conditions
Cognitive Decline, Cognitive Dysfunction
Interventions
Polyphenol Supplement, Placebo Supplement
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
50 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Jul 22, 2026, 5:05 AM EDT
Completed Not applicable Interventional

Cocoa and Metabolic Health in Prediabetes

NCT02203240
View directory record Official record
Conditions
Prediabetes
Interventions
Cocoa, Placebo
Other
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
40 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 20, 2023 · Synced Jul 22, 2026, 5:05 AM EDT
Completed Not applicable Interventional

Health Coaching as a Tool for Improving Medication Adherence in Adult Patients With Inflammatory Bowel Disease

NCT03757533
View directory record Official record
Conditions
Inflammatory Bowel Diseases
Interventions
Health Coaching, Surveys
Behavioral · Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 15, 2023 · Synced Jul 22, 2026, 5:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Commercially Available Synbiotic on the Gut Microbiome and Cardiometabolic Health: A Randomized Double-Blind Placebo-Controlled Trial

NCT07515443
View directory record Official record
Conditions
Hypertension, Gut Dysbiosis, Overweight , Obesity
Interventions
Synbiotic, Placebo
Dietary Supplement
Lead sponsor
Southern Utah University
Other
Eligibility
18 Years to 60 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Cedar, Utah
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Jul 22, 2026, 5:05 AM EDT
Completed Not applicable Interventional Results available

Specialty Medical Homes to Improve Outcomes for Patients With IBD and Behavioral Health Conditions

NCT03985800
View directory record Official record
Conditions
Inflammatory Bowel Disease, Behavioral Symptoms
Interventions
TEAM, TECH
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 60 Years
Enrollment
657 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 2, 2025 · Synced Jul 22, 2026, 5:05 AM EDT
Completed No phase listed Observational

Development of an Instrument to Measure Quality of Life in Children With Chronic Constipation and Soiling

NCT00677508
View directory record Official record
Conditions
Constipation, Fecal Incontinence
Interventions
Not listed
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
2 Years to 18 Years
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 29, 2020 · Synced Jul 22, 2026, 5:05 AM EDT
No Longer Available No phase listed Expanded access

Starch-entrapped Microspheres [Nutrabiotix Fiber] for Gut Health

NCT01210625
View directory record Official record
Conditions
Constipation
Interventions
Nutrabiotix, Psyllium
Dietary Supplement
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 7, 2023 · Synced Jul 22, 2026, 5:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Parkinson's Disease and Digestive Health

NCT04032262
View directory record Official record
Conditions
Parkinson Disease, Constipation, Gastro-Intestinal Disorder
Interventions
Gastrointestinal and Parkinson's Disease
Diagnostic Test
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 19, 2023 · Synced Jul 22, 2026, 5:05 AM EDT
Recruiting Not applicable Interventional

Dietary Wild Blueberries and Joint Health

NCT06828159
View directory record Official record
Conditions
Gut -Microbiota, Inflammation Biomarkers, Pain Assessment, Joint Pain
Interventions
Wild blueberry, Placebo
Dietary Supplement
Lead sponsor
University of Nevada, Las Vegas
Other
Eligibility
40 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Jul 22, 2026, 5:05 AM EDT
Terminated Phase 4 Interventional Results available

A Health Economic Trial in Adult Patients Undergoing Open Colectomy MA402S23B301

NCT01507220
View directory record Official record
Conditions
Bowel Obstruction
Interventions
morphine sulfate, bupivacaine liposome extended-release injectable suspension
Drug
Lead sponsor
Pacira Pharmaceuticals, Inc
Industry
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 5, 2014 · Synced Jul 22, 2026, 5:05 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Increasing CRC Screening in Community Health Centers Through Mobile Messaging Optimization

NCT07569250
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Personalized Text Message, Screening Concerns Text Message, Message Framing Text Message, Autonomy Support Outreach, Impediments Support Outreach, Live Support Outreach, Data Reporting and Visualization System Tools
Behavioral · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
45 Years to 75 Years
Enrollment
7,220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2032
U.S. locations
4
States / cities
Boston, Massachusetts • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Jul 22, 2026, 5:05 AM EDT
Recruiting Not applicable Interventional

Effect of Watermelon on Gut and Cardiometabolic Health

NCT06588218
View directory record Official record
Conditions
Obesity and Overweight, Dysbiosis
Interventions
Watermelon, Belvita Breakfast Sandwich + 12 oz Water
Other
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 30 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Jul 22, 2026, 5:05 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Almonds, Gut Microbiome and Kids

NCT07636850
View directory record Official record
Conditions
Dysbiosis, Cardiometabolic Health Indicators
Interventions
Creamy Richards 100% Almonds! Creamy Natural Almond Butter, Cadbury Milk Chocolate Spread
Other
Lead sponsor
Florida State University
Other
Eligibility
6 Years to 13 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Jul 22, 2026, 5:05 AM EDT