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ClinicalTrials.gov public records Last synced May 21, 2026, 8:07 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 416 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Gut Health Clear all
Not yet recruiting Not applicable Interventional
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Crohn's Disease, Ulcerative Colitis, Depressive Disorder, Anxiety Disorder, Stress Disorders, Post-Traumatic
Interventions
Acceptance and Commitment Therapy
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2028 – 2032
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced May 21, 2026, 8:07 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Vaginal Microbiome, Gut Microbiome, Gut Health
Interventions
Active, Placebo
Dietary Supplement
Lead sponsor
Ocean Spray Cranberries, Inc.
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 13, 2025 · Synced May 21, 2026, 8:07 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Diabetes, Heart Diseases, Diet Habit, Diet Modification, Healthy, Obesity, Metabolism, Microbial Colonization
Interventions
Dietary Intervention
Other
Lead sponsor
Zoe Global Limited
Other
Eligibility
18 Years and older
Enrollment
250,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2030
U.S. locations
1
States / cities
Needham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 15, 2025 · Synced May 21, 2026, 8:07 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Colorectal Cancer
Interventions
SBIRT, Referral as Usual (RAU)
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
45 Years and older
Enrollment
880 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced May 21, 2026, 8:07 PM EDT
Withdrawn Not applicable Interventional
View directory record Official record
Conditions
Inflammatory Bowel Disease
Interventions
Integrated Brief Behavior Therapy (IBBT) Intervention, Treatment as usual
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
12 Years to 21 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 4, 2018 · Synced May 21, 2026, 8:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Infant Growth, Infant Body Fat, Infant Gut Microbiome
Interventions
a high-protein complementary diet with meat, a high-protein complementary diet with dairy
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
1 Month to 5 Months
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 9, 2019 · Synced May 21, 2026, 8:07 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Gastrointestinal, Overweight , Obesity
Interventions
CLB101™️, Placebo, Placebo control
Dietary Supplement · Other
Lead sponsor
ClostraBio Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced May 21, 2026, 8:07 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Inflammatory Bowel Disease (IBD)
Interventions
Digital Transformation Network (DTN) Program
Behavioral
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
543 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
4
States / cities
Davis, California • Secaucus, New Jersey • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2025 · Synced May 21, 2026, 8:07 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Colorectal Cancer, Colon Cancer, Rectal Cancer
Interventions
Fitbit and Text Messages
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 26, 2020 · Synced May 21, 2026, 8:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Gastrointestinal Microbiome, Nutrition, Healthy
Interventions
AG1 - Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced May 21, 2026, 8:07 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Breast Cancer, Prostate Cancer, Colorectal Cancer
Interventions
Survey
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Waukesha, Wisconsin
Source: ClinicalTrials.gov public record
Updated Nov 17, 2019 · Synced May 21, 2026, 8:07 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Gut Microbiome, Inflammation
Interventions
Wild Salmon, Farmed Salmon
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
30 Years to 50 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 18, 2024 · Synced May 21, 2026, 8:07 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Crohn Disease, Ulcerative Colitis
Interventions
Control, Text-based Clinical Hovering
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced May 21, 2026, 8:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Bowel Movement Regulation, Occasional Constipation, Occasional Diarrhea
Interventions
Bacillus subtilis DE111®
Dietary Supplement
Lead sponsor
Deerland Enzymes
Industry
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Kennesaw, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 9, 2019 · Synced May 21, 2026, 8:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Low Mood
Interventions
Intervention 1 - Triglyceride, Intervention 2 - Placebo
Dietary Supplement
Lead sponsor
Pharmavite LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 6, 2024 · Synced May 21, 2026, 8:07 PM EDT
Completed No phase listed Observational Results available
View directory record Official record
Conditions
Fecal Incontinence, Bowel Dysfunction, Bowel Incontinence, Accidental Bowel Leakage
Interventions
Not listed
Lead sponsor
Pelvalon, Inc.
Industry
Eligibility
19 Years and older · Female only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Sunnyvale, California
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced May 21, 2026, 8:07 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Rectal Cancer, Rectum
Interventions
questionnaires, CSI-SH- Cancer Survivorship Intervention
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
21 Years and older
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2024
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced May 21, 2026, 8:07 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Inflammatory Bowel Disease, Crohn's Disease, Ulcerative Colitis
Interventions
Education and Reminders, Educational Visit, Medication Educational Visit, Financial Support
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years to 80 Years
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 30, 2018 · Synced May 21, 2026, 8:07 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Inflammation, Microbiota, Gastrointestinal Irritation
Interventions
Not listed
Lead sponsor
University of Massachusetts, Lowell
Other
Eligibility
18 Years to 30 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Lowell, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 6, 2024 · Synced May 21, 2026, 8:07 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Gastric Atrophy, Gastric Intestinal Metaplasia, Dysplasia, Gastric Adenocarcinoma, Gastric Cancer
Interventions
Questionnaire
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
3,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2036
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2026 · Synced May 21, 2026, 8:07 PM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Colorectal Cancer, Anal Cancer, Sexual Dysfunction
Interventions
Mind-Body Group Intervention
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 23, 2025 · Synced May 21, 2026, 8:07 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Type 2 Diabetes, Cardiovascular Diseases
Interventions
Pistachio, Usual care
Drug · Other
Lead sponsor
Penn State University
Other
Eligibility
30 Years to 65 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 17, 2023 · Synced May 21, 2026, 8:07 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Small Intestinal Bacterial Overgrowth (SIBO)
Interventions
Liquid Tincture, GI Detox, Olivirex
Dietary Supplement
Lead sponsor
Integrative Skin Science and Research
Industry
Eligibility
18 Years to 60 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 3, 2021 · Synced May 21, 2026, 8:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Colorectal Cancer
Interventions
CRC mHealth, Control
Behavioral
Lead sponsor
ISA Associates, Inc.
Other
Eligibility
45 Years to 75 Years · Male only
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Alexandria, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 1, 2026 · Synced May 21, 2026, 8:07 PM EDT