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ClinicalTrials.gov public records Last synced Oct 30, 2026, 4:24 PM EDT

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Showing 97–120 of 913 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: stool Clear all
Terminated Not applicable Interventional

Measurements From Stool to Support Dietary Change

NCT04037306
View directory record Official record
Conditions
Diet Habit, Feeding Behavior, Behavior, Health
Interventions
Butyrate Feedback, Fiber Feedback
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years to 80 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 2, 2020 · Synced Oct 30, 2026, 4:24 PM EDT
Completed Early Phase 1 Interventional

Fecal Microbiota Transplantation After HSCT

NCT02733744
View directory record Official record
Conditions
Bone Marrow Transplantation
Interventions
Fecal Microbiota Transplantation (FMT)
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 22, 2017 · Synced Oct 30, 2026, 4:24 PM EDT
Suspended Phase 1 Interventional

Nivolumab and Ipilimumab With and Without Camu Camu for the Treatment of Patients With Metastatic Renal Cell Carcinoma

NCT06049576
View directory record Official record
Conditions
Clear Cell Renal Cell Carcinoma, Sarcomatoid Renal Cell Carcinoma, Stage III Renal Cell Cancer AJCC v8, Stage IV Renal Cell Cancer AJCC v8
Interventions
Biospecimen Collection, Bone Scan, Computed Tomography, Ipilimumab, Magnetic Resonance Imaging, Myrciaria dubia Prebiotic Supplement, Nivolumab
Procedure · Biological · Drug
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 30, 2026, 4:24 PM EDT
Completed No phase listed Observational

Blood and Stool Sample Collection in Subjects With a Diagnosis of Colorectal Cancer or Colorectal Lesion: Act Fast

NCT03789162
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Not listed
Lead sponsor
Exact Sciences Corporation
Industry
Eligibility
40 Years and older
Enrollment
850 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
44
States / cities
Phoenix, Arizona • Canoga Park, California • Chula Vista, California + 39 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2025 · Synced Oct 30, 2026, 4:24 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Microbiome and the Gut-Brain Axis

NCT02693327
View directory record Official record
Conditions
Mental Disorder
Interventions
Biological Sample, Blood Sample
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 80 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
2
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 15, 2018 · Synced Oct 30, 2026, 4:24 PM EDT
Completed No phase listed Observational

Oral Aromatase Inhibitors Modify the Gut Microbiome

NCT05030038
View directory record Official record
Conditions
Breast Cancer
Interventions
Fecal swab collection, Blood samples
Biological
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older · Female only
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Oct 30, 2026, 4:24 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Fecal Microbiota Therapy for Recurrent Clostridium Difficile Colitis

NCT01973465
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Stool
Biological
Lead sponsor
OSF Healthcare System
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Peoria, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 31, 2013 · Synced Oct 30, 2026, 4:24 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Pathobiomes in Gut of Critically Ill Patients

NCT06822465
View directory record Official record
Conditions
Pseudomonas Aeruginosa
Interventions
P. aeruginosa using in vitro and in vivo assays
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 85 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Hyde Park, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Oct 30, 2026, 4:24 PM EDT
Terminated No phase listed Observational

Stool Sample Collection Protocol for Development of Screening Test for Colorectal Cancer and Other Digestive Tract Cancers

NCT02503631
View directory record Official record
Conditions
Colorectal Neoplasms, Digestive System Diseases, Colonic Diseases, Colorectal Cancer
Interventions
Stool Sample Collection Kit
Device
Lead sponsor
Exact Sciences Corporation
Industry
Eligibility
40 Years to 90 Years
Enrollment
397 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
21
States / cities
Newport Beach, California • Hamden, Connecticut • Holiday, Florida + 17 more
Source: ClinicalTrials.gov public record
Updated Apr 6, 2018 · Synced Oct 30, 2026, 4:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reminder Modality for CRC Screening

NCT05012007
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Reminder Phone, Reminder Text
Other
Lead sponsor
VA Puget Sound Health Care System
Federal
Eligibility
45 Years to 75 Years
Enrollment
2,653 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 4, 2022 · Synced Oct 30, 2026, 4:24 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Biomarkers of Intestinal Fibrosis in Small Bowel Crohn's Disease

NCT04088773
View directory record Official record
Conditions
Crohn Disease
Interventions
blood biomarkers, stool biomarkers, MRI imaging
Diagnostic Test
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
8 Years to 70 Years
Enrollment
232 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
4
States / cities
Atlanta, Georgia • Ann Arbor, Michigan • Rochester, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 13, 2025 · Synced Oct 30, 2026, 4:24 PM EDT
Terminated Phase 2 Interventional Results available

Microtransplantation to Treat Refractory or Relapsed Hematologic Malignancies in Younger Patients

NCT02433483
View directory record Official record
Conditions
Acute Myeloid Leukemia (AML), Myelodysplastic Syndrome (MDS)
Interventions
Cytarabine, Intrathecal Triples, HPC-A
Drug · Biological
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
Up to 21 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 1, 2017 · Synced Oct 30, 2026, 4:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Measuring the Influence of Kefir on Children's Stools on Antibiotics (MILK)

NCT00481507
View directory record Official record
Conditions
Respiratory Tract Infections
Interventions
Kefir, Placebo
Other
Lead sponsor
Georgetown University
Other
Eligibility
1 Year to 5 Years
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jul 10, 2019 · Synced Oct 30, 2026, 4:24 PM EDT
Completed Phase 2 Interventional Results available

Microbiota Restoration Therapy for Recurrent Clostridium Difficile Infection

NCT02589847
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
RBX2660, Standard of Care Antibiotics
Biological · Drug
Lead sponsor
Rebiotix Inc.
Industry
Eligibility
18 Years and older
Enrollment
272 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
28
States / cities
Phoenix, Arizona • North Little Rock, Arkansas • Sacramento, California + 25 more
Source: ClinicalTrials.gov public record
Updated Mar 26, 2021 · Synced Oct 30, 2026, 4:24 PM EDT
Terminated Phase 2 Interventional Results available

Dose Ranging Study of the Safety and Efficacy of Orally Administered Lyophilized Fecal Microbiota Product (PRIM-DJ2727) for the Treatment of Recurrent Clostridium Difficile Infection (CDI)

NCT03298048
View directory record Official record
Conditions
Recurrent C. Difficile Infection
Interventions
Low fecal microbiota dose, Mid fecal microbiota dose, High fecal microbiota dose
Biological
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 100 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 6, 2020 · Synced Oct 30, 2026, 4:24 PM EDT
No Longer Available No phase listed Expanded access

Clinical Use of a Magnetic Anal Sphincter Augmentation Device, Trade Name FENIX

NCT02722707
View directory record Official record
Conditions
Fecal Incontinence
Interventions
magnetic anal sphincter augmentation for fecal incontinence
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
2
States / cities
Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 31, 2018 · Synced Oct 30, 2026, 4:24 PM EDT
Terminated Phase 1 Interventional Results available

Fecal Microbiota Transplantation (FMT) of FMP30 in Relapsing-Remitting Multiple Sclerosis

NCT03594487
View directory record Official record
Conditions
Relapsing Remitting Multiple Sclerosis
Interventions
FMP30 Donor Stool, Fecal Microbiota Transplantation (FMT) of FMP30 Donor Stool, Observational Control
Drug · Procedure · Other
Lead sponsor
Jeffrey Gelfand
Other
Eligibility
18 Years to 60 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Oct 30, 2026, 4:24 PM EDT
Recruiting Phase 2 Interventional

Stool Transplants to Treat Refractory Clostridium Difficile Colitis

NCT02127398
View directory record Official record
Conditions
Clostridium Difficile Colitis
Interventions
fecal microbiota
Biological
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Oct 30, 2026, 4:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study of In-home Tests for Colorectal Cancer

NCT01998009
View directory record Official record
Conditions
Colorectal Cancer
Interventions
fecal occult blood tests
Other
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
50 Years to 75 Years
Enrollment
1,382 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
2
States / cities
Indianapolis, Indiana • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 5, 2015 · Synced Oct 30, 2026, 4:24 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Energy Metabolism and Nutrient Absorption in Lean and Obese Individuals

NCT00414063
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 45 Years · Male only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2013
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Oct 30, 2026, 4:24 PM EDT
Completed Not applicable Interventional

Perianal Maceration in Pediatric Ostomy Closure Patients

NCT04606004
View directory record Official record
Conditions
Perianal Dermatitis, Diaper Dermatitis, Postoperative Complications, Colostomy Site, Ileostomy - Stoma
Interventions
Stool application, Standard of care skincare
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
1 Day to 3 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 1, 2021 · Synced Oct 30, 2026, 4:24 PM EDT
Completed Phase 2 Interventional

SAT vs Escitalopram for Rectal Hypersensitivity

NCT00584571
View directory record Official record
Conditions
Rectal Hypersensitivity, Irritable Bowel Syndrome-Constipation
Interventions
Sensory Adaptation Training, Escitalopram Therapy
Procedure · Drug
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2019
U.S. locations
2
States / cities
Augusta, Georgia • Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Aug 6, 2020 · Synced Oct 30, 2026, 4:24 PM EDT
Completed No phase listed Observational

Reproducibility of a Fecal Occult Blood Test Device for Gut Microbiota Analyses

NCT01194687
View directory record Official record
Conditions
Normal Physiology
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 99 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 18, 2018 · Synced Oct 30, 2026, 4:24 PM EDT
Not listed No phase listed Observational

Stool Sample Collection Study

NCT06294873
View directory record Official record
Conditions
Colorectal Cancer
Interventions
A screening device for the detection of colorectal and other aerodigestive tract cancers
Diagnostic Test
Lead sponsor
Innovis LLC
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
3
States / cities
Anaheim, California • Ocala, Florida • Cordova, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 6, 2024 · Synced Oct 30, 2026, 4:24 PM EDT