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ClinicalTrials.gov public records Last synced Oct 24, 2026, 4:13 PM EDT

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Showing 769–792 of 913 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Stool Clear all
Completed Not applicable Interventional Accepts healthy volunteers

A Pilot Study to Determine the Effect of a Cobiotic Formulation on the Gastrointestinal Microbiome

NCT01724736
View directory record Official record
Conditions
Pre Diabetic
Interventions
Placebo, NM504:
Drug
Lead sponsor
NuMe Health
Industry
Eligibility
18 Years to 70 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jul 24, 2014 · Synced Oct 24, 2026, 4:13 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Fecal Microbiota Transplantation (FMT) for Treatment of Ulcerative Colitis in Children

NCT01947101
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
Fecal Microbiota Transplant
Biological
Lead sponsor
Baylor College of Medicine
Other
Eligibility
12 Years to 20 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 14, 2016 · Synced Oct 24, 2026, 4:13 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Personal Electronic Health Records in Improving Screening Rates for Colorectal Cancer

NCT01032746
View directory record Official record
Conditions
Colorectal Cancer
Interventions
educational intervention, internet-based intervention, evaluation of cancer risk factors, fecal occult blood test, screening colonoscopy
Other · Procedure
Lead sponsor
Harvard University
Other
Eligibility
50 Years to 75 Years
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2005
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 18, 2013 · Synced Oct 24, 2026, 4:13 PM EDT
Completed No phase listed Observational

Helicobacter Pylori Sample Collection Protocol Pre Therapy Subjects

NCT03060746
View directory record Official record
Conditions
Helicobacter Pylori Infection, Gastric Ulcer, Nausea, Abdominal Pain, Weight Loss, Stomach Ulcer, Loss of Appetite, Bloating
Interventions
Newly Diagnosed
Other
Lead sponsor
DiaSorin Inc.
Industry
Eligibility
22 Years and older
Enrollment
277 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
11
States / cities
Mesa, Arizona • Mission Hills, California • Oxnard, California + 8 more
Source: ClinicalTrials.gov public record
Updated Dec 30, 2021 · Synced Oct 24, 2026, 4:13 PM EDT
Completed Phase 1Phase 2 Interventional Results available

TRC102 and Temozolomide for Relapsed Solid Tumors and Lymphomas

NCT01851369
View directory record Official record
Conditions
Lymphomas, Solid Tumors, NSCLC, Metastatic Colon Carcinoma, Granulosa Cell Ovarian Cancer
Interventions
TRC102, CT scan, Lomotil, Prochlorperazine, Metoclopramide, 5-HT3 antagonist, Aprepitant, Biopsy
Drug · Diagnostic Test · Other + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 120 Years
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 8, 2024 · Synced Oct 24, 2026, 4:13 PM EDT
Completed Phase 1 Interventional

Impact of Fecal Biotherapy (FBT) on Microbial Diversity in Patients With Moderate to Severe Inflammatory Bowel Disease

NCT01847170
View directory record Official record
Conditions
Crohn's Disease
Interventions
Fecal Microbial Transplantation
Biological
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 3, 2017 · Synced Oct 24, 2026, 4:13 PM EDT
Completed Phase 1 Interventional

Assessment of Combined Bowel Preparation for Capsule Endoscopy Study

NCT01243736
View directory record Official record
Conditions
Gastrointestinal Hemorrhage
Interventions
Combination Prep
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 20, 2016 · Synced Oct 24, 2026, 4:13 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Colonoscopy or Fecal Occult Blood Test in Screening Healthy Participants for Colorectal Cancer

NCT00102011
View directory record Official record
Conditions
Colorectal Cancer
Interventions
annual screening, fecal occult blood test, screening colonoscopy, standard follow-up care
Procedure
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
40 Years to 69 Years
Enrollment
4,952 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2026
U.S. locations
4
States / cities
Shreveport, Louisiana • Minneapolis, Minnesota • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Oct 24, 2026, 4:13 PM EDT
Recruiting No phase listed Observational

Biospecimen and Medical Data Collection and Tumor Biopsy in Creating Research Tissue Registry in Patients With Inflammatory or Invasive Breast Cancer

NCT00477100
View directory record Official record
Conditions
Inflammatory Breast Carcinoma, Invasive Breast Carcinoma, Second Primary Malignant Neoplasm
Interventions
Biospecimen Collection, Interview, Medical Chart Review, Questionnaire Administration
Procedure · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2030
U.S. locations
10
States / cities
Gilbert, Arizona • La Jolla, California • Greeley, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 24, 2026, 4:13 PM EDT
Recruiting Phase 2 Interventional

Response to Emerging Antimicrobial Resistance With Containment Microbiota Therapy (REACT)

NCT06321536
View directory record Official record
Conditions
Multi-Drug Resistant Organism Colonization
Interventions
Allogeneic Microbiota in Glycerol (9%) (AMG)
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
4
States / cities
Atlanta, Georgia • Decatur, Georgia • Hinsdale, Illinois + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Oct 24, 2026, 4:13 PM 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 Oct 24, 2026, 4:13 PM EDT
Not listed No phase listed Observational

Microbial and Human Determinants of the Onset of IBD Flares

NCT05463900
View directory record Official record
Conditions
Ulcerative Colitis, Crohn Disease, Irritable Bowel, Crohns Disease Aggravated, Crohn Disease in Remission
Interventions
Not listed
Lead sponsor
Viome
Industry
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Bothell, Washington
Source: ClinicalTrials.gov public record
Updated Oct 30, 2023 · Synced Oct 24, 2026, 4:13 PM EDT
Completed No phase listed Observational

The Microbiome in Parkinson's Disease

NCT03129451
View directory record Official record
Conditions
Parkinson Disease
Interventions
Microbiome specimens in stool
Diagnostic Test
Lead sponsor
Corewell Health West
Other
Eligibility
Not listed
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Grand Rapids, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 8, 2024 · Synced Oct 24, 2026, 4:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Blood Collection Sub-Study of Exact Sciences Protocol 2019-01: "Clinical Validation of an Optimized Multi-Target Stool DNA (Mt-sDNA 2.0) Test, For Colorectal Cancer Screening BLUE-C"

NCT04144751
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Blood Sample Collection
Other
Lead sponsor
Exact Sciences Corporation
Industry
Eligibility
40 Years and older
Enrollment
23,494 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
194
States / cities
Birmingham, Alabama • Cullman, Alabama • Dothan, Alabama + 160 more
Source: ClinicalTrials.gov public record
Updated Sep 28, 2023 · Synced Oct 24, 2026, 4:13 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Amitiza® Plus GoLYTELY® (PEG) Versus Placebo Plus GoLYTELY® for Outpatient Colonoscopy Preparation

NCT00645801
View directory record Official record
Conditions
Colonoscopy
Interventions
lubiprostone (Amitiza), Placebo
Drug
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older
Enrollment
158 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
3
States / cities
Detroit, Michigan • Novi, Michigan • West Bloomfield, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 1, 2023 · Synced Oct 24, 2026, 4:13 PM EDT
Completed No phase listed Observational

Screening Tests in Detecting Colorectal Cancer

NCT00025025
View directory record Official record
Conditions
Colorectal Cancer
Interventions
sample testing
Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
65 Years to 80 Years
Enrollment
4,482 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2009
U.S. locations
65
States / cities
Tuscon, Arizona • Oakland, California • Aurora, Colorado + 38 more
Source: ClinicalTrials.gov public record
Updated Jul 4, 2016 · Synced Oct 24, 2026, 4:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of L. Paracasei Strain Shirota on Constipation in Healthy US Adults

NCT06014008
View directory record Official record
Conditions
Constipation
Interventions
Test product consumption group
Other
Lead sponsor
Yakult U.S.A. Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 22, 2024 · Synced Oct 24, 2026, 4:13 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Autologous Fecal Microbiota Transplantation to Prevent Antibiotic Resistant Bacteria Colonization

NCT03061097
View directory record Official record
Conditions
Antibiotic Resistant Strain
Interventions
Autologous fecal microbiota transplant (Auto-FMP Enema), Placebo Enema Preparation
Biological · Other
Lead sponsor
Microbiome Health Research Institute
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 5, 2021 · Synced Oct 24, 2026, 4:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Sierra High Definition Ano-Rectal Manometry

NCT01300884
View directory record Official record
Conditions
Constipation, Fecal Incontinence
Interventions
Not listed
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 80 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 23, 2018 · Synced Oct 24, 2026, 4:13 PM EDT
Not yet recruiting Phase 2 Interventional

Isotretinoin vs. Doxycycline for Acneiform Rash in Patients Receiving Drugs That Target the MAPK Pathway

NCT07629167
View directory record Official record
Conditions
Acneiform Drug Eruption, Acneiform Eruptions
Interventions
Isotretinoin, Doxycycline, Blood specimen collection, Photographs of Rash, Questionnaires, Stool Specimen collection
Drug · Procedure · Other + 1 more
Lead sponsor
University of California, San Francisco
Other
Eligibility
12 Years to 39 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 5, 2026 · Synced Oct 24, 2026, 4:13 PM EDT
Completed Phase 1 Interventional

Fecal Microbiota Transplant (FMT) for Relapsing C. Difficile Infection in Adults and Children Using a Frozen Inoculum

NCT01704937
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fecal Microbiota Transplant (FMT)
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
7 Years to 90 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 20, 2014 · Synced Oct 24, 2026, 4:13 PM EDT
Recruiting No phase listed Observational

Evaluation of Stool Based Markers for the Early Detection of Colorectal Cancers and Adenomas

NCT00843375
View directory record Official record
Conditions
Colonic Neoplasms
Interventions
Not listed
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
11
States / cities
Los Angeles, California • Urbana, Illinois • Boston, Massachusetts + 8 more
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Oct 24, 2026, 4:13 PM EDT
Completed Not applicable Interventional

Neuromodulation Therapy for Fecal Incontinence

NCT02556151
View directory record Official record
Conditions
Fecal Incontinence
Interventions
Repetitive lumbosacral magnetic stimulation (rTLSMS)
Procedure
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 90 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 20, 2019 · Synced Oct 24, 2026, 4:13 PM EDT
Withdrawn No phase listed Observational

Diet, Physical Activity and Body Composition Changes During R-CHOP

NCT04293900
View directory record Official record
Conditions
Non-Hodgkin Lymphoma, DLBCL, Diffuse Large B Cell Lymphoma
Interventions
24-hour dietary recall, Hand grip strength, International Physical Activity Questionnaire, Patient-reported outcomes survey, Pittsburgh Sleep Quality Index, Functional Assessment of Cancer Treatment - Lymphoma, urine sample (optional), fecal sample (optional)
Other
Lead sponsor
George Washington University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Oct 6, 2020 · Synced Oct 24, 2026, 4:13 PM EDT