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ClinicalTrials.gov public records Last synced Oct 22, 2026, 8:40 AM EDT

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Showing 217–240 of 913 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Stool Clear all
Recruiting No phase listed Observational

Microbiome in Head and Neck Squamous Cell Carcinoma

NCT05837221
View directory record Official record
Conditions
Head and Neck Cancer, Lip Cancer, Oral Cancer, Pharynx Cancer
Interventions
Metagenomic sequencing, Metabolic analysis
Diagnostic Test
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 100 Years
Enrollment
60 participants
Timeline
2025 – 2028
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Oct 22, 2026, 8:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Increasing Colorectal Cancer (CRC) Screening Among Hispanic Primary Care Patients

NCT02272244
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Decision Support & Navigation, Standard
Behavioral
Lead sponsor
Thomas Jefferson University
Other
Eligibility
50 Years to 75 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
3
States / cities
Allentown, Pennsylvania • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 4, 2025 · Synced Oct 22, 2026, 8:40 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 22, 2026, 8:40 AM EDT
Completed Not applicable Interventional Results available

The Role of Fiber in the Prevention and Treatment of Fecal Incontinence

NCT04806386
View directory record Official record
Conditions
Fecal Incontinence, Irritable Bowel Syndrome With Diarrhea
Interventions
Psyllium
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
50 Years to 90 Years · Female only
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Oct 22, 2026, 8:40 AM EDT
Completed Phase 4 Interventional Results available

Yield of Diagnostic Tests and Effects of Crofelemer for Chronic Idiopathic Diarrhea In Non-HIV Patients

NCT03898856
View directory record Official record
Conditions
Chronic Diarrhea of Unknown Origin
Interventions
Crofelemer, Diagnostic tests for cause of chronic diarrhea
Drug · Diagnostic Test
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 75 Years
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Oct 22, 2026, 8:40 AM EDT
Not listed Phase 1 Interventional

Fecal Microbiota Transplantation as a Strategy to Eradicate Resistant Organisms

NCT02543866
View directory record Official record
Conditions
Infection Resistant to Drugs
Interventions
Fecal Microbiota Transplantation
Biological
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
7 Years to 21 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 23, 2021 · Synced Oct 22, 2026, 8:40 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Gastric Bacterial Colonization of Preterm Neonates

NCT05385939
View directory record Official record
Conditions
Microbial Colonization, Preterm Birth
Interventions
Observational
Other
Lead sponsor
Christiana Care Health Services
Other
Eligibility
1 Week to 6 Months
Enrollment
122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated May 23, 2022 · Synced Oct 22, 2026, 8:40 AM EDT
Active, not recruiting Phase 2 Interventional

Autologous Fecal Microbiota Transplantation (Auto-FMT) for Prophylaxis of Clostridium Difficile Infection in Recipients of Allogeneic Hematopoietic Stem Cell Transplantation

NCT02269150
View directory record Official record
Conditions
Allogeneic Hematopoietic Stem Cell
Interventions
fecal microbiota transplantation (FMT), No fecal microbiota transplantation (FMT), routine management
Biological · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 17, 2025 · Synced Oct 22, 2026, 8:40 AM 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 22, 2026, 8:40 AM EDT
Completed Phase 1 Interventional

Safety of FMT Using Oral Encapsulated PRIM-DJ2727 in HIV

NCT03329560
View directory record Official record
Conditions
HIV-1-infection
Interventions
Oral fecal microbiota transplantation
Biological
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older · Male only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 27, 2020 · Synced Oct 22, 2026, 8:40 AM EDT
Withdrawn No phase listed Observational

Study SBX-01-101: A Stool Collection Study in Colorectal Cancer (CRC) Patients Treated With Irinotecan-Based Regimens

NCT05821582
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Stool Collection and Survey Completion
Other
Lead sponsor
Sanguine Biosciences
Industry
Eligibility
18 Years to 85 Years
Timeline
2023
U.S. locations
1
States / cities
Woburn, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 12, 2023 · Synced Oct 22, 2026, 8:40 AM EDT
Completed Not applicable Interventional

A Study to Determine Whether Urinary PGE-M Levels Correlate With Ulcerative Colitis Disease

NCT00409396
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
Urinary PGEm level, fecal calprotectin
Procedure
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 9, 2015 · Synced Oct 22, 2026, 8:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Resistant Starch Blend Gastrointestinal Impact

NCT03983772
View directory record Official record
Conditions
Quality of Life, Health, Subjective
Interventions
RS blend, Placebo
Dietary Supplement · Other
Lead sponsor
Metagenics, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Gig Harbor, Washington
Source: ClinicalTrials.gov public record
Updated Apr 6, 2022 · Synced Oct 22, 2026, 8:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Screening More Patients for Colorectal Cancer Through Adapting and Refining Targeted Evidence-Based Interventions in Rural Settings, SMARTER CRC

NCT04890054
View directory record Official record
Conditions
Colorectal Carcinoma
Interventions
Fecal Immunochemical Test, Interview, Patient Navigation
Other · Behavioral
Lead sponsor
OHSU Knight Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
5,696 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 19, 2025 · Synced Oct 22, 2026, 8:40 AM EDT
Terminated Phase 2 Interventional Results available

Interventional Bioremediation of Microbiota in Metabolic Syndrome

NCT02730962
View directory record Official record
Conditions
Pre-Diabetes
Interventions
Vancomycin, Placebo, Neomycin, Clindamycin, Fecal Microbiota Transplantation
Drug · Other · Procedure
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 22, 2023 · Synced Oct 22, 2026, 8:40 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 22, 2026, 8:40 AM 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 22, 2026, 8:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Multilevel Intervention Based on Colorectal Cancer (CRC) and Cervical Cancer Self-screening in Rural, Segregated Areas

NCT04471194
View directory record Official record
Conditions
Colorectal Cancer Screening, Cervical Cancer Screening
Interventions
Self-sampling HPV test, Fecal occult blood test
Diagnostic Test
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
50 Years to 65 Years · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 13, 2022 · Synced Oct 22, 2026, 8:40 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Collection of Blood, Bone Marrow, Skin, Saliva, and Stool Samples From Healthy Volunteers Used for Comparative Analysis of Myeloid Malignancies

NCT05588154
View directory record Official record
Conditions
Myelodysplastic Syndromes
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 120 Years
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2052
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 22, 2026, 8:40 AM EDT
Withdrawn Phase 1 Interventional

Randomized Trial Comparing Single vs. Maintenance Fecal Microbiota Transplant for Refractory Crohn's Disease in Children

NCT03747718
View directory record Official record
Conditions
Crohn Disease
Interventions
Fecal Microbiota Transplantation, Placebo
Biological · Other
Lead sponsor
Stanford University
Other
Eligibility
2 Years to 25 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 14, 2023 · Synced Oct 22, 2026, 8:40 AM 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 22, 2026, 8:40 AM EDT
Completed Phase 3 Interventional Results available

A Multi-center, Single-arm Trial Exploring the Safety and Clinical Effectiveness of RBX2660 Administered by Colonoscopy to Adults With Recurrent Clostridioides Difficile Infection

NCT05831189
View directory record Official record
Conditions
Clostridium Difficile Infection Recurrence
Interventions
RBX2660
Drug
Lead sponsor
Ferring Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
12
States / cities
North Little Rock, Arkansas • Camarillo, California • Hamden, Connecticut + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2026 · Synced Oct 22, 2026, 8:40 AM EDT
Active, not recruiting No phase listed Observational

Multi-Organ Screening Recommendations in Patients With Lynch Syndrome

NCT00582296
View directory record Official record
Conditions
Lynch Syndrome
Interventions
questionnaires, telephone interview, optional blood drawn, questionnaires, telephone interview and optional blood drawn
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1,530 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2026
U.S. locations
8
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Oct 22, 2026, 8:40 AM EDT
Suspended No phase listed Observational

Role of Pancreatic Exocrine Secretion in Weight Gain After Pancreas Transplantation

NCT04690738
View directory record Official record
Conditions
Exocrine Pancreatic Insufficiency, Weight Gain
Interventions
Fecal Elastase Concentration
Diagnostic Test
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2030
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Oct 22, 2026, 8:40 AM EDT