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ClinicalTrials.gov public records Last synced Nov 1, 2026, 1:56 AM EDT

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

Showing 481–504 of 913 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: stool Clear all
Recruiting No phase listed Observational Accepts healthy volunteers

Tissue Repository: CTCL Collection Protocol

NCT02840747
View directory record Official record
Conditions
Lymphoma, T-Cell, Cutaneous, Lymphomatoid Papulosis, Sézary Syndrome
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Nov 1, 2026, 1:56 AM EDT
Completed No phase listed Observational

Fecal Calprotectin Collection Protocol

NCT03143517
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Irritable Bowel Syndrome, Ulcerative Colitis, Crohn Disease, Indeterminate Colitis, Chronic Diarrhea, Celiac Disease, Diverticulitis, Abdominal Pain, Distension, Weight Loss, Food Intolerance, Constipation
Interventions
Stool collection
Diagnostic Test
Lead sponsor
DiaSorin Inc.
Industry
Eligibility
4 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
13
States / cities
Dothan, Alabama • Little Rock, Arkansas • Mission Hills, California + 10 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2019 · Synced Nov 1, 2026, 1:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Stool Microbiome Using HyGIeaCare Prep

NCT04264923
View directory record Official record
Conditions
Stool Microbiome
Interventions
HyGIeaCare Prep
Other
Lead sponsor
HyGIeaCare, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 31, 2020 · Synced Nov 1, 2026, 1:56 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Healthy Volunteers Study

NCT06962059
View directory record Official record
Conditions
Ovarian Cancer, Genetic Predisposition to Disease
Interventions
Self-Administered Sample Collection
Other
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
30 Years to 50 Years · Female only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Nov 1, 2026, 1:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Fecal Microbiota Transplantation (FMT) in Multiple Sclerosis

NCT03975413
View directory record Official record
Conditions
Multiple Sclerosis, Relapsing-Remitting
Interventions
Fecal Microbiota Transplantation (FMT)
Other
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 8, 2020 · Synced Nov 1, 2026, 1:56 AM EDT
Completed No phase listed Observational

Evaluating Modifiable Biomarkers for the Prediction of Immunotherapy Response and Toxicity

NCT04954885
View directory record Official record
Conditions
Lung Non-Squamous Non-Small Cell Carcinoma, Stage IIIB Lung Cancer AJCC v8, Stage IV Lung Cancer AJCC v8, Stage IVA Lung Cancer AJCC v8, Stage IVB Lung Cancer AJCC v8
Interventions
Biospecimen Collection, Physical Performance Testing, Questionnaire Administration
Procedure · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 27, 2025 · Synced Nov 1, 2026, 1:56 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Evaluation of the Pedal-Controlled Surgistep Platform to Improve Ergonomics

NCT07140835
View directory record Official record
Conditions
Ergonomics
Interventions
SurgiStep Platform, Standard Foot stool
Device
Lead sponsor
Stanford University
Other
Eligibility
36 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Nov 1, 2026, 1:56 AM EDT
Active, not recruiting No phase listed Observational

Pharmacokinetics of IFX and TNF Concentrations in Serum, Stool, and Colonic Mucosa in Acute Severe Ulcerative Colitis

NCT03765450
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
Infliximab
Drug
Lead sponsor
Alimentiv Inc.
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
2
States / cities
San Diego, California • New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Nov 1, 2026, 1:56 AM EDT
Recruiting Not applicable Interventional

Testing the Impact of Measurement-Based Care on Quality of Life and Disease Management Among Veterans With Inflammatory Bowel Disease

NCT07210580
View directory record Official record
Conditions
Inflammatory Bowel Disease
Interventions
MBC-IBD Intervention, Enhanced Treatment as Usual (E-TAU)
Behavioral · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
4
States / cities
Decatur, Georgia • Ann Arbor, Michigan • Portland, Oregon + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Nov 1, 2026, 1:56 AM EDT
Active, not recruiting Not applicable Interventional

Impact of Protect Your Colon™ on CRC Screening

NCT05929820
View directory record Official record
Conditions
Colorectal Cancer Screening
Interventions
Protect Your Colon™
Behavioral
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
45 Years to 75 Years
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 7, 2026 · Synced Nov 1, 2026, 1:56 AM EDT
Completed Not applicable Interventional Results available

Examining Changes in Microbiota Over the Course of PTSD Treatment

NCT04109196
View directory record Official record
Conditions
Posttraumatic Stress Disorder, Depression
Interventions
Cognitive Processing Therapy
Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 100 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 22, 2023 · Synced Nov 1, 2026, 1:56 AM EDT
Completed Phase 1 Interventional

Study of the Fecal Microbiome in Patients With Parkinson's Disease

NCT03671785
View directory record Official record
Conditions
Parkinson Disease
Interventions
PRIM-DJ2727, Placebo oral capsule
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
55 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 24, 2023 · Synced Nov 1, 2026, 1:56 AM EDT
Recruiting No phase listed Observational

Collection of Information to Better Understand Young Onset Colorectal Cancer

NCT04489238
View directory record Official record
Conditions
Colorectal Cancer, Colorectal Carcinoma
Interventions
Risk Factor Questionnaire
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1,366 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
8
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 23, 2026 · Synced Nov 1, 2026, 1:56 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Intradermal Fractional Dose IPV (fIPV) in Combination With dmLT

NCT05327426
View directory record Official record
Conditions
Poliomyelitis
Interventions
Intradermal fractional dose inactivated polio vaccine (fIPV) in combination with recombinant double mutant heat labile toxin, LT(R192G/L211A), (dmLT), Intradermal fractional dose inactivated polio vaccine (fIPV), Monovalent oral poliomyelitis vaccine (mOPV), Sabin strain
Biological
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 45 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Nov 29, 2023 · Synced Nov 1, 2026, 1:56 AM EDT
Completed No phase listed Observational

Isolation and Characterization of Multiple Microbial Species From Diverse Healthy Adults

NCT05150184
View directory record Official record
Conditions
Human Microbiome
Interventions
Non-interventional
Other
Lead sponsor
Danisco
Industry
Eligibility
18 Years to 50 Years
Enrollment
52 participants
Timeline
2021 – 2023
U.S. locations
1
States / cities
Beltsville, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 7, 2023 · Synced Nov 1, 2026, 1:56 AM EDT
Recruiting No phase listed Observational

Norris ORIEN Total Cancer Care

NCT02970045
View directory record Official record
Conditions
Cancer Risk, Malignant Neoplasm
Interventions
Biospecimen Collection, Evaluation of Cancer Risk Factors, Medical Chart Review, Quality-of-Life Assessment, Questionnaire Administration
Procedure · Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
10,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2037
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Nov 1, 2026, 1:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Assessment of Vitamin B12 Bioavailability From Egg

NCT01366937
View directory record Official record
Conditions
Bioavailability of Vitamin B12 From Chicken Eggs
Interventions
Not listed
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Aug 4, 2011 · Synced Nov 1, 2026, 1:56 AM EDT
Active, not recruiting No phase listed Observational

Microbiome and Immunosuppression: The Mission Study

NCT04953715
View directory record Official record
Conditions
Kidney Transplant Rejection, Kidney Transplant
Interventions
collection of body microbiome
Other
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2033
U.S. locations
2
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 7, 2026 · Synced Nov 1, 2026, 1:56 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Fecal Microbiota Transplant for Primary CDI

NCT03795233
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fecal microbiota transplant G3 capsules, Oral Vancomycin alone
Biological · Other
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 15, 2021 · Synced Nov 1, 2026, 1:56 AM EDT
Terminated Phase 1 Interventional

FMT for MDRO Colonization After Infection in Renal Transplant Recipients

NCT02922816
View directory record Official record
Conditions
Infection Due to Resistant Organism
Interventions
Fecal Microbiota Transplant (FMT), Bowel preparation, Stool or perirectal swab sampling, Fasting
Biological · Procedure · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 15, 2023 · Synced Nov 1, 2026, 1:56 AM EDT
Completed Not applicable Interventional Results available

Fecal Incontinence Treatment (FIT) Study

NCT03811821
View directory record Official record
Conditions
Fecal Incontinence, Bowel Incontinence
Interventions
Biofeedback, Injection
Behavioral · Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
275 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
6
States / cities
Birmingham, Alabama • Augusta, Georgia • Ann Arbor, Michigan + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Nov 1, 2026, 1:56 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Prototyping a Device for Automating Stool and Urine Output Tracking

NCT05438199
View directory record Official record
Conditions
Waste Output
Interventions
Toilet seat that measures waste output
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Nov 1, 2026, 1:56 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Investigating the Genetic and Phenotypic Presentation of Ataxia and Nucleotide Repeat Diseases

NCT04529252
View directory record Official record
Conditions
Spinocerebellar Ataxias, Cerebellar Ataxia, Nucleotide Repeat Disease
Interventions
Specimen collection
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2026
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Nov 1, 2026, 1:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

AI-EMERGE: Development and Validation of a Multi-analyte, Blood-based Colorectal Cancer Screening Test

NCT03688906
View directory record Official record
Conditions
Colo-rectal Cancer, Cancer Colon, Cancer, Rectum, Neoplasms,Colorectal, Polyps, Polyp of Colon, Adenoma, Adenoma Colon
Interventions
Not listed
Lead sponsor
Freenome Holdings Inc.
Industry
Eligibility
18 Years and older
Enrollment
3,275 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
29
States / cities
Huntsville, Alabama • Chandler, Arizona • Tucson, Arizona + 25 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2022 · Synced Nov 1, 2026, 1:56 AM EDT