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ClinicalTrials.gov public records Last synced Oct 21, 2026, 12:22 PM EDT

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

Showing 25–48 of 913 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Stool Clear all
Terminated Not applicable Interventional

Human Breastmilk in Young Children With Norovirus Infection of the Gut

NCT02371538
View directory record Official record
Conditions
Norovirus Infections
Interventions
Donor Breastmilk
Dietary Supplement
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Not listed
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 20, 2020 · Synced Oct 21, 2026, 12:22 PM EDT
Completed Not applicable Interventional

A Study of the Effect of Probiotics on Gastrointestinal Function During Pregnancy

NCT03320226
View directory record Official record
Conditions
Pregnancy Early, Nausea Gravidarum, Vomiting of Pregnancy
Interventions
Probiotic 10 (Nature's Bounty)
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older · Female only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Aug 9, 2023 · Synced Oct 21, 2026, 12:22 PM EDT
Recruiting Phase 2 Interventional

Fecal Microbiome Transplant to Remodel Intestinal Microbiota for Patients With Relapsed or Refractory Lymphoma With Exposure to High-Risk Antibiotics Who Are Receiving Chimeric Antigen Receptor T Cells

NCT07042438
View directory record Official record
Conditions
Recurrent Diffuse Large B-Cell Lymphoma, Recurrent High Grade B-Cell Lymphoma With MYC and BCL2 or BCL6 Rearrangements, Recurrent Transformed Follicular Lymphoma to Diffuse Large B-Cell Lymphoma, Refractory Diffuse Large B-Cell Lymphoma, Refractory High Grade B-Cell Lymphoma With MYC and BCL2 or BCL6 Rearrangements, Refractory Transformed Follicular Lymphoma to Diffuse Large B-Cell Lymphoma
Interventions
Axicabtagene Ciloleucel, Biospecimen Collection, Chemotherapy, Fecal Microbiota Transplantation, Leukapheresis, Placebo Administration
Biological · Procedure · Drug
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Oct 21, 2026, 12:22 PM EDT
Completed Not applicable Interventional

Community Partnership for Telehealth Solutions to Convey Information and Enhance Care

NCT06542835
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Video text message, In-clinic CRC screening promotion, Mailed FIT, Social needs navigation, Reminders
Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
45 Years to 64 Years
Enrollment
15,128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 21, 2026, 12:22 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Stool Microbiome, Pathogens, and Infectious Agents Among Olympic and Elite Athletes

NCT02818413
View directory record Official record
Conditions
Athletic Performance
Interventions
Biospecimen collection and questionnaires
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 29, 2017 · Synced Oct 21, 2026, 12:22 PM EDT
Recruiting Phase 1 Interventional

Feasibility, Safety, and Potential Efficacy of Fecal Microbiota Transplantation (FMT) for Gastrointestinal Dysfunction in Children Following Hematopoietic Cell Transplant (HCT).

NCT05664113
View directory record Official record
Conditions
Gastro-Intestinal Disorder
Interventions
Fecal microbiota transplant (FMT)
Drug
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
Up to 22 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Oct 21, 2026, 12:22 PM EDT
Recruiting No phase listed Observational

Axonics R20 Post-Market Clinical Follow-up (PMCF) Study for the Indication of Fecal Incontinence

NCT07499258
View directory record Official record
Conditions
Fecal Incontinence
Interventions
Axonics SNM System INS Model 5101 (R20)
Device
Lead sponsor
Axonics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
4
States / cities
New York, New York • Cincinnati, Ohio • Nashville, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 21, 2026, 12:22 PM EDT
Recruiting No phase listed Observational

The Short Sleep Study

NCT07567560
View directory record Official record
Conditions
Short Sleepers
Interventions
Not listed
Lead sponsor
Danisco
Industry
Eligibility
20 Years to 50 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
4
States / cities
Miami, Florida • Boston, Massachusetts • Garden City, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2026 · Synced Oct 21, 2026, 12:22 PM EDT
Recruiting Phase 1 Interventional

Study to Evaluate the Fecal Microbiota Transplantation (FMT) in the Treatment of Ulcerative Colitis

NCT05786404
View directory record Official record
Conditions
Active Ulcerative Colitis (UC)
Interventions
PRIM-DJ2727 - FROZEN, PRIM-DJ2727 - CAPSULES
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 10, 2024 · Synced Oct 21, 2026, 12:22 PM EDT
Completed Phase 1 Interventional

Fecal Transplant in Recurrent Hepatic Encephalopathy

NCT02636647
View directory record Official record
Conditions
Hepatic Encephalopathy, Cirrhosis
Interventions
Fecal transplant
Biological
Lead sponsor
Jasmohan Bajaj
Federal
Eligibility
21 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 5, 2022 · Synced Oct 21, 2026, 12:22 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Weizmannia (Bacillus) Coagulans JBI-YZ6.3 on Gut Health and Fecal Microbiome Changes

NCT07388264
View directory record Official record
Conditions
Gastrointestinal Symptoms, Constipation, Gut Health, Gastrointestinal Function
Interventions
Weizmannia (Bacillus) coagulans JBI-YZ6.3, Placebo
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Oct 21, 2026, 12:22 PM EDT
Completed No phase listed Observational

Intestinal Ischemia as a Stimulus for Systemic Inflammatory Response After Cardiac Arrest

NCT01944605
View directory record Official record
Conditions
Cardiac Arrest, Reperfusion Injury
Interventions
Not listed
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 6, 2017 · Synced Oct 21, 2026, 12:22 PM EDT
Terminated Phase 4 Interventional

Enteral Naloxone Versus a Traditional Bowel Regimen for the Prevention of Opioid Induced Constipation in Trauma Patients

NCT00799201
View directory record Official record
Conditions
Constipation, Analgesia
Interventions
Naloxone and Docusate
Drug
Lead sponsor
CAMC Health System
Other
Eligibility
18 Years to 65 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Charleston, West Virginia
Source: ClinicalTrials.gov public record
Updated Jul 29, 2015 · Synced Oct 21, 2026, 12:22 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Parkinson's Disease Biomarkers in Nerve Cells in the Gut

NCT05347407
View directory record Official record
Conditions
Parkinson Disease
Interventions
Colonoscopy
Procedure
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
45 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 22, 2026 · Synced Oct 21, 2026, 12:22 PM EDT
Completed No phase listed Observational

Effects of Chemotherapy on Intestinal Bacteria in Patients With Newly Diagnosed Breast Cancer

NCT02370277
View directory record Official record
Conditions
Ductal Breast Carcinoma In Situ, Invasive Breast Carcinoma, Stage I Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer
Interventions
Cytology Specimen Collection Procedure, Laboratory Biomarker Analysis, Questionnaire Administration
Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 18, 2019 · Synced Oct 21, 2026, 12:22 PM EDT
Completed Phase 4 Interventional Results available

A Longitudinal Study to Identify IBS Phenotypes Using Fecal Microbiota and Hydrogen Breath Testing

NCT03219528
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Rifaximin 550 MG, Low FODMAP Diet
Drug · Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 27, 2025 · Synced Oct 21, 2026, 12:22 PM EDT
Completed Phase 2 Interventional Results available

SH-DS01 on Fecal Metagenomic Stability

NCT04598295
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
DS-01
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Oct 21, 2026, 12:22 PM EDT
Completed Not applicable Interventional Results available

Neuromodulation for Accidental Bowel Leakage

NCT03278613
View directory record Official record
Conditions
Fecal Incontinence, Bowel Incontinence
Interventions
ES-130
Device
Lead sponsor
NICHD Pelvic Floor Disorders Network
Network
Eligibility
18 Years and older · Female only
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
9
States / cities
Birmingham, Alabama • Downey, California • La Jolla, California + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2025 · Synced Oct 21, 2026, 12:22 PM EDT
Active, not recruiting Phase 1 Interventional

Microbiota Transplant With Antibiotic Preconditioning and Fiber Supplementation in PAH.

NCT07751120
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
MTT with antibiotic preconditioning + fiber supplementation, MTT with antibiotic preconditioning + placebo supplementation, MTT with placebo + placebo supplementation.
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 21, 2026, 12:22 PM EDT
Recruiting No phase listed Observational

Evaluation of Anti-PD-1 Therapy by Monitoring T Cell Responses in Melanoma, Lung and Other Cancer Types

NCT06075524
View directory record Official record
Conditions
Clinical Stage III Cutaneous Melanoma AJCC v8, Clinical Stage IV Cutaneous Melanoma AJCC v8, Locally Advanced Lung Carcinoma, Locally Advanced Malignant Solid Neoplasm, Locally Advanced Melanoma, Metastatic Lung Carcinoma, Metastatic Malignant Solid Neoplasm, Metastatic Melanoma, Stage III Lung Cancer AJCC v8, Stage IV Lung Cancer AJCC v8
Interventions
Biospecimen Collection, Electronic Health Record Review
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 18, 2026 · Synced Oct 21, 2026, 12:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effectiveness of Direct-to-Patient Outreach on Colorectal Cancer Screening Within a Low Income and Diverse Population

NCT01385579
View directory record Official record
Conditions
Malignant Neoplasm of Large Intestine
Interventions
Care manager outreach
Other
Lead sponsor
Northwestern University
Other
Eligibility
50 Years to 80 Years
Enrollment
202 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 6, 2014 · Synced Oct 21, 2026, 12:22 PM EDT
Enrolling by invitation Phase 4 Interventional Accepts healthy volunteers

Imaging Biomarkers of Pancreatic Function and Disease

NCT05659147
View directory record Official record
Conditions
Pancreatitis, Diabetes Mellitus
Interventions
Research MRI without administration of intravenous secretin, Research MRI with administration of intravenous secretin, Genetic Sequencing, Blood Tests, Stool Tests, Survey Completion, Endoscopic pancreatic function tests (ePFTs), Secretin
Diagnostic Test · Genetic · Other + 1 more
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
5 Years to 21 Years
Enrollment
195 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced Oct 21, 2026, 12:22 PM EDT
Not listed Not applicable Interventional

Translumbosacral Neuromodulation for FI

NCT03899181
View directory record Official record
Conditions
Fecal Incontinence
Interventions
Translumbosacral Neuromodulation Therapy (TNT), Sham TNT Therapy
Device · Other
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
2
States / cities
Augusta, Georgia • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 21, 2022 · Synced Oct 21, 2026, 12:22 PM EDT
Not listed No phase listed Observational

A Study of the Relationship of Gut Microbial Composition and Stroke Outcome

NCT03470506
View directory record Official record
Conditions
Ischemic Stroke
Interventions
Stool Samples
Other
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
2
States / cities
Charlottesville, Virginia • Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 19, 2019 · Synced Oct 21, 2026, 12:22 PM EDT