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ClinicalTrials.gov public records Last synced Oct 30, 2026, 7:49 PM EDT

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Showing 169–192 of 913 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: stool Clear all
Completed Not applicable Interventional Accepts healthy volunteers

The Meals Study for Amyotrophic Lateral Sclerosis and Parkinson's Disease

NCT07625605
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis (ALS), Parkinson's Disease (PD)
Interventions
The MIND diet
Behavioral
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
30 Years and older
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
3
States / cities
Elizabethton, Tennessee • Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 30, 2026, 7:49 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

GI Tract Biomarkers in Infants With Different Diets

NCT03751137
View directory record Official record
Conditions
Obesity, Childhood
Interventions
Not listed
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
6 Weeks to 3 Months
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2025
U.S. locations
1
States / cities
Wilmington, Delaware
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Oct 30, 2026, 7:49 PM EDT
Completed Phase 4 Interventional Results available

Effects of Lubiprostone on Small Bowel and Colonic Bacteria: A Correlation Study With Segmental and Whole Gut Transit

NCT00844831
View directory record Official record
Conditions
Constipation
Interventions
Lubiprostone
Drug
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 27, 2017 · Synced Oct 30, 2026, 7:49 PM EDT
Not listed No phase listed Observational

Gut Microbiome and Ventricular Arrhythmias

NCT04466072
View directory record Official record
Conditions
Ventricular Tachycardia, Ventricular Fibrillation, Gut Microbiome
Interventions
Stool test for microbial analysis
Diagnostic Test
Lead sponsor
North Florida Foundation for Research and Education
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 18, 2022 · Synced Oct 30, 2026, 7:49 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Does a Periaqueductal Gray-vagus Nerve Interface Malfunction Explain the Nat hx With Its Numerous Co-morbidities?

NCT06616363
View directory record Official record
Conditions
POTS - Postural Orthostatic Tachycardia Syndrome
Interventions
Questionnaires to be competed, Provide list of medication and lifetime events, Use phone App to record new life events, Will wear an activity monitor, Periodic 24-hour urine sodium check, A fMRI scan, A bedside tilt test will be performed, IV placed to collect blood samples, Stool Sample
Behavioral · Device · Other + 1 more
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
12 Years to 21 Years · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 30, 2026, 7:49 PM EDT
Terminated No phase listed Observational

Non-Invasive Prediction of Colorectal Neoplasia

NCT01815463
View directory record Official record
Conditions
Colonic Polyps, Polyposis Coli, Colorectal Cancer
Interventions
Not listed
Lead sponsor
Corporal Michael J. Crescenz VA Medical Center
Federal
Eligibility
18 Years to 85 Years
Enrollment
2,282 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 27, 2016 · Synced Oct 30, 2026, 7:49 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Comprehensive Outcomes for After Cancer Health

NCT05349227
View directory record Official record
Conditions
Ovarian Cancer, Breast Cancer, Lung Cancer, Gastric Cancer, Survivorship, Endometrial Cancer, Head and Neck Cancers, Prostate Cancers, Geriatric Oncology, Metastatic Breast Cancer, Metastatic Cancer
Interventions
Digital Health Coaching Program, Fitbit
Behavioral · Device
Lead sponsor
Pack Health
Industry
Eligibility
18 Years and older
Enrollment
625 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
7
States / cities
Gainesville, Florida • Boston, Massachusetts • Omaha, Nebraska + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2024 · Synced Oct 30, 2026, 7:49 PM EDT
Recruiting Phase 1 Interventional

The Microbiota Augmentation to Reestablish Commensal Organisms (MARCO) Trial

NCT06871111
View directory record Official record
Conditions
Liver Diseases, Liver Failure, Cirrhosis, Liver
Interventions
Commensal Bacteria Strains
Biological
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Oct 30, 2026, 7:49 PM EDT
Withdrawn Phase 2 Interventional

Fecal Microbiota Transplantation For The Treatment Of Gastro-Intestinal Acute GVHD

NCT04059757
View directory record Official record
Conditions
Gastro-Intestinal Acute Graft Versus Host Disease (GI-aGVHD)
Interventions
Fecal Microbiota Transplantation (FMT)
Biological
Lead sponsor
Leland Metheny
Other
Eligibility
19 Years to 74 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 7, 2022 · Synced Oct 30, 2026, 7:49 PM EDT
Recruiting No phase listed Observational

Chronic Loose Stools Following Right-sided Hemicolectomy for Colon Cancer and the Association With Bile Acid Malabsorption and Small Intestinal Bacterial Overgrowth Using a Novel Sampling Device

NCT06927011
View directory record Official record
Conditions
Colon Cancer
Interventions
Capscan
Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
20 Years to 85 Years
Enrollment
20 participants
Timeline
2025 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Oct 30, 2026, 7:49 PM 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 6, 2023 · Synced Oct 30, 2026, 7:49 PM EDT
Completed Not applicable Interventional

Noninvasive Markers of Gluten Ingestion in Celiac Disease Patients

NCT02389062
View directory record Official record
Conditions
Adult Form of Celiac Disease
Interventions
Administration of gluten( food /wheat protein) capsules or placebo(cornstarch) capsules and tests for novel markers will be done at intervals.
Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 19, 2019 · Synced Oct 30, 2026, 7:49 PM EDT
Suspended Not applicable Interventional

Effects of Home Gluten Immunogenic Peptide Testing on Children With Celiac Disease

NCT03462979
View directory record Official record
Conditions
Celiac Disease, Gluten Sensitivity, Gluten Enteropathy, Gastrointestinal Disease, Digestive System Disease, Diet Modification, Intestinal Disease, Malabsorption Syndromes, Patient Compliance, Diagnostic Self Evaluation, Quality of Life
Interventions
Immunochromatographic lateral flow test
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
6 Years to 18 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 20, 2022 · Synced Oct 30, 2026, 7:49 PM EDT
Active, not recruiting No phase listed Observational

Transanal Total Mesorectal Excision for Rectal Cancer on Anal Physiology + Fecal Incontinence

NCT03283540
View directory record Official record
Conditions
Rectal Cancer
Interventions
TaTME, TME
Procedure
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 17, 2025 · Synced Oct 30, 2026, 7:49 PM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Real-Time Feedback (RTFB) to Improve Colonoscopy

NCT05241210
View directory record Official record
Conditions
Colorectal Cancer
Interventions
AI program for colonoscopy
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
4,150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
3
States / cities
Baltimore, Maryland • Minneapolis, Minnesota • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Oct 30, 2026, 7:49 PM EDT
Withdrawn No phase listed Observational

Prevalence of Lower Urinary Tract Symptoms in Women With Gynecologic Malignancy Planning to Undergo Surgical Management

NCT00580697
View directory record Official record
Conditions
Lower Urinary Tract Symptoms, Gynecologic Malignancy
Interventions
Not listed
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Jan 25, 2021 · Synced Oct 30, 2026, 7:49 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Primary and Secondary Prevention of Type 2 Diabetes Mellitus in Clark County

NCT06387797
View directory record Official record
Conditions
At Risk for Type 2 Diabetes Mellitus, Pre Diabetes
Interventions
Cooking Matters for Adults (CMA)
Behavioral
Lead sponsor
University of Nevada, Las Vegas
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 30, 2026, 7:49 PM EDT
Completed No phase listed Observational

Comparison of Gut Microbiota, Inflammation and Symptoms Following Allogeneic HSCT

NCT02398708
View directory record Official record
Conditions
Graft vs Host Disease, Graft Versus Host Disease, Hematopoietic Stem Cell Transplantation, Peripheral Blood Stem Cell Transplantation
Interventions
Questionnaires, Blood Sample, Stool Sample, Clinical data
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 25, 2019 · Synced Oct 30, 2026, 7:49 PM EDT
Recruiting Not applicable Interventional

FITting Non-invasive Tests in Lynch Syndrome Surveillance

NCT06898996
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Fecal immunochemical test
Other
Lead sponsor
University of Chicago
Other
Eligibility
20 Years to 80 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
3
States / cities
Chicago, Illinois • Ann Arbor, Michigan • New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 21, 2026 · Synced Oct 30, 2026, 7:49 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Microbiome in Colorectal Cancer Onset and Progression

NCT05368688
View directory record Official record
Conditions
Colorectal Cancer, Tumor, CRC, GI Cancer, Gastrointestinal Cancer
Interventions
Not listed
Lead sponsor
Viome
Industry
Eligibility
50 Years to 80 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Bellevue, Washington
Source: ClinicalTrials.gov public record
Updated Dec 27, 2022 · Synced Oct 30, 2026, 7:49 PM EDT
Not listed No phase listed Observational

Immune Response to C.Difficile Infection

NCT02797288
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Not listed
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 6, 2023 · Synced Oct 30, 2026, 7:49 PM EDT
Completed Not applicable Interventional

Standard Versus Mnemonic Counseling for Fecal Incontinence

NCT01778660
View directory record Official record
Conditions
Fecal Incontinence, Counselling, Patient Satisfaction
Interventions
Type of Counselling (Mnemonic), Standard
Other
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older · Female only
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Apr 8, 2014 · Synced Oct 30, 2026, 7:49 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Absorption, Metabolism, and Excretion of CYC065 in Healthy Male Subjects

NCT05817890
View directory record Official record
Conditions
Healthy
Interventions
Fadraciclib
Drug
Lead sponsor
Cyclacel Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 30, 2026, 7:49 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Precision Crohn's Disease Management Utilizing Predictive Protein Panels (ENvISION)

NCT04131504
View directory record Official record
Conditions
Crohn's Disease, IBD
Interventions
Infliximab, Adalimumab
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
1 Year to 22 Years
Enrollment
239 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
4
States / cities
Hartford, Connecticut • Cincinnati, Ohio • Columbus, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2024 · Synced Oct 30, 2026, 7:49 PM EDT