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ClinicalTrials.gov public records Last synced Oct 30, 2026, 11:56 AM EDT

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

Showing 49–72 of 913 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: stool Clear all
Completed No phase listed Observational Accepts healthy volunteers

BM Collection From NICU Infants for Composition

NCT02570698
View directory record Official record
Conditions
Diaper Dermatitis
Interventions
Not listed
Lead sponsor
Kimberly-Clark Corporation
Industry
Eligibility
Up to 30 Weeks
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Aug 18, 2017 · Synced Oct 30, 2026, 11:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Health & the Microbiome

NCT06039267
View directory record Official record
Conditions
Mild Cognitive Impairment, Mild Dementia, Alzheimer Disease 1
Interventions
Gut Microbiome Testing
Other
Lead sponsor
George Washington University
Other
Eligibility
50 Years to 90 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jan 29, 2026 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Fiber Regimens for Constipation Symptoms

NCT03845673
View directory record Official record
Conditions
Constipation
Interventions
Psyllium, Bowel recipe
Dietary Supplement
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 19, 2019 · Synced Oct 30, 2026, 11:56 AM EDT
Recruiting Phase 2 Interventional

Standardized Microbiota Transplant Therapy in Crohn's Disease

NCT06631586
View directory record Official record
Conditions
Crohn Disease
Interventions
MTP-101C, MTP-101S
Biological
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 89 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
3
States / cities
Minneapolis, Minnesota • New York, New York • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Not applicable Interventional Results available

Clinical Study to Investigate the Effectiveness of the TOPAS System to Treat Fecal Incontinence

NCT01090739
View directory record Official record
Conditions
Fecal Incontinence
Interventions
TOPAS Treatment for Fecal Incontinence
Device
Lead sponsor
ASTORA Women's Health
Industry
Eligibility
18 Years and older · Female only
Enrollment
207 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
14
States / cities
San Francisco, California • Tampa, Florida • Weston, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2016 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Not applicable Interventional Results available

Head to Head Pilot Trial of Mailed Cologuard to Mailed FIT

NCT06173375
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Cologuard, Fecal Immunochemical Test
Diagnostic Test
Lead sponsor
University of California, San Diego
Other
Eligibility
45 Years to 49 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Dietary Fructose on Gut Microbiota and Fecal Metabolites in Obese Men and Postmenopausal Women: A Pilot Study

NCT03339245
View directory record Official record
Conditions
Non-Alcoholic Fatty Liver Disease, Obesity
Interventions
Fructose Solution (75 Grams), Glucose Solution (75 grams)
Other
Lead sponsor
Rockefeller University
Other
Eligibility
45 Years to 70 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 26, 2021 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Fecal Microbiota Transplant (FMT) in Pediatric Active Ulcerative Colitis and Pediatric Active Crohn's Colitis

NCT02330653
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Ulcerative Colitis, Crohn Disease
Interventions
Fecal Microbiota Transplant (FMT), Placebo
Biological
Lead sponsor
Stacy A. Kahn
Other
Eligibility
5 Years to 30 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 16, 2023 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Not applicable Interventional

Impact of Carbon Dioxide Insufflation and Water Exchange on Post-Colonoscopy Outcomes

NCT02409979
View directory record Official record
Conditions
Abdominal Pain
Interventions
Carbon dioxide method, Water Exchange-CO2, Water Exchange-AI
Other
Lead sponsor
Presidio Ospedaliero Santa Barbara
Other
Eligibility
18 Years to 80 Years
Enrollment
246 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 5, 2015 · Synced Oct 30, 2026, 11:56 AM EDT
Recruiting Phase 2 Interventional

Study of Healthy Donor FMT (hdFMT) and Pembrolizumab in Relapsed/Refractory (R/R) PD-L1 Positive NSCLC

NCT05669846
View directory record Official record
Conditions
Non Small Cell Lung Cancer
Interventions
Healthy Donor Fecal Microbiota Transplant (hdFMT), Pembrolizumab
Drug
Lead sponsor
Diwakar Davar
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2036
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 30, 2026, 11:56 AM EDT
Withdrawn Early Phase 1 Interventional

Fecal Microbiota Transplantation (FMT) in Treatment of Severe and Enduring Anorexia Nervosa

NCT03928808
View directory record Official record
Conditions
Anorexia Nervosa
Interventions
Fecal Microbiota Transplantation (FMT)
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 45 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 30, 2023 · Synced Oct 30, 2026, 11:56 AM EDT
Completed No phase listed Observational

Collection of Biological Samples From Patients With Hepatitis-Associated Aplastic Anemia

NCT00050115
View directory record Official record
Conditions
Hepatitis-Associated Aplastic Anemia
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
2 Years to 100 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 8, 2021 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Randomized Controlled Trial Investigating if Antibiotic Use in the First 48 Hours of Life Adversely Impacts the Preterm Infant Microbiome

NCT02477423
View directory record Official record
Conditions
Premature Birth of Newborn, Enterocolitis, Necrotizing
Interventions
Ampicillin, Gentamicins, Placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
Up to 6 Hours
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 8, 2020 · Synced Oct 30, 2026, 11:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Adherence to Minimally Invasive Testing

NCT02251782
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Epi proColon Test, Fecal Immunochemical Test (FIT)
Device
Lead sponsor
Epigenomics, Inc
Industry
Eligibility
50 Years to 76 Years
Enrollment
490 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
2
States / cities
Portland, Oregon • Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 30, 2015 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Scavenging of Reactive Carbonyl Species by Blueberries in Humans

NCT07873723
View directory record Official record
Conditions
Human Health, Reactive Carbonyl Species, Polyphenols
Interventions
Blueberries, control group
Dietary Supplement
Lead sponsor
North Carolina Agriculture & Technical State University
Other
Eligibility
25 Years to 70 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 14, 2026 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Stress & Resilience Study

NCT06063174
View directory record Official record
Conditions
Stress, Stress, Psychological, Stress, Physiological, Stress, Emotional, Stress Reaction
Interventions
Education Program, Think Well Program, Be Well Program, Eat Well Program, Sleep Well Program, Move Well Program
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
712 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 15, 2025 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Phase 2 Interventional

Probiotics for Clostridium Difficile Infection in Older Adults

NCT01680874
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 3, 2015 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Not applicable Interventional

Improving Rates of Colorectal Cancer Screening Among Never Screened Patients

NCT01742169
View directory record Official record
Conditions
Colorectal Neoplasms
Interventions
Outreach and Reminder Intervention
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
50 Years to 75 Years
Enrollment
420 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 7, 2015 · Synced Oct 30, 2026, 11:56 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Progression of Gastroesophageal Reflux Disease and Barrett's Esophagus and the Creation of a Barrett's Registry

NCT00574327
View directory record Official record
Conditions
Barrett's Esophagus, Gastroesophageal Reflux Disease, Esophageal Adenocarcinoma
Interventions
Not listed
Lead sponsor
Midwest Biomedical Research
Other
Eligibility
18 Years and older
Enrollment
3,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2029
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 16, 2023 · Synced Oct 30, 2026, 11:56 AM EDT
Terminated Not applicable Interventional

Fecal Microbiota Transplantation for Ulcerative Colitis

NCT01742754
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
Fecal Microbiota Transplantation
Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 13, 2013 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Internet-based Treatment of Early Childhood Fecal Incontinence

NCT00067769
View directory record Official record
Conditions
Encopresis
Interventions
Internet-based intervention UCanPoopToo, treatment as usual
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
6 Years to 12 Years
Enrollment
91 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2007
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Dec 7, 2015 · Synced Oct 30, 2026, 11:56 AM EDT
Completed No phase listed Observational

Gut Microbiota in Intestinal Barrier Damage in Acute Leukemia Patients Undergoing Inpatient Induction

NCT03316456
View directory record Official record
Conditions
Chemotherapy-Induced Gut Barrier Damage, Acute Leukemia
Interventions
Observational: Stool Sample Collection, Observational: Blood Sample Collection, Observational: Urine Sample Collection
Diagnostic Test
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
18 Years to 99 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 6, 2019 · Synced Oct 30, 2026, 11:56 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Implementation Intention Planning Guide for FIT Colon Cancer Screening

NCT07183046
View directory record Official record
Conditions
Fecal Immunochemical Test, Colorectal Cancer Screening
Interventions
Implementation Intention Guide
Behavioral
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
45 Years to 75 Years
Enrollment
1,600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
5
States / cities
Lebanon, New Hampshire • Lyme, New Hampshire • White River Junction, Vermont
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Oct 30, 2026, 11:56 AM EDT
Completed Not applicable Interventional

Geographically Clustered Mailing of Fecal Immunochemical Test (FIT) Kits

NCT03718221
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Usual Care FIT Screening Strategy, GeoMail FIT Screening Strategy
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
50 Years to 64 Years
Enrollment
8,653 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 30, 2021 · Synced Oct 30, 2026, 11:56 AM EDT