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Showing 1–24 of 229 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Fecal Microbiota Clear all
Recruiting Phase 1 Interventional

MTC Versus FMT in for RCDI

NCT05911997
View directory record Official record
Conditions
Clostridiodies Difficile Infections
Interventions
MTC 01, Fecal Microbiota Transplantation (FMT)
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 2, 2026, 7:09 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

A Pilot and Feasibility Study of Fecal Microbiota Transplantation for Ulcerative Colitis

NCT02058524
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
fecal microbiota transplantation
Biological
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 65 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 23, 2016 · Synced Sep 2, 2026, 7:09 AM 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 19, 2014 · Synced Sep 2, 2026, 7:09 AM EDT
Recruiting Phase 2 Interventional

Evaluation the Safety and Efficacy of Lyophilized Fecal Microbiota Transplantation Administered Orally for Prevention of Relapse or Intestinal Inflammation in Adults With Ulcerative Colitis

NCT04373473
View directory record Official record
Conditions
Adults With Ulcerative Colitis
Interventions
PRIM-DJ2727, Placebos
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 8, 2026 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 1 Interventional

A Study to Evaluate Fecal Microbiota Transplantation Engraftment in IBS

NCT02847481
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
fecal microbiota transplantation, placebo fecal microbiota transplantation, FMT with antibiotic pre-treatment (v1), FMT with antibiotic pre-treatment (v2)
Procedure · Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 22, 2019 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Fresh, Frozen or Lyophilized Fecal Microbiota Transplantation for Multiple Recurrent C. Difficile Associated Diarrhea

NCT02318992
View directory record Official record
Conditions
Recurrent C. Difficile Associated Diarrhea
Interventions
Fecal Microbiota
Biological
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Sep 2, 2026, 7:09 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Milk Fat Intake and Metabolic Health Markers

NCT02659748
View directory record Official record
Conditions
Insulin Sensitivity, Type 2 Diabetes
Interventions
Milk Fat, Control Fat
Dietary Supplement
Lead sponsor
University of Vermont Medical Center
Other
Eligibility
18 Years to 40 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Oct 25, 2016 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Dietary Fructose on Gut Microbiota and Fecal Metabolites in Obese Men and Postmenopausal Women: A Pilot Study

NCT03339245
View directory record Official record
Conditions
Non-Alcoholic Fatty Liver Disease, Obesity
Interventions
Fructose Solution (75 Grams), Glucose Solution (75 grams)
Other
Lead sponsor
Rockefeller University
Other
Eligibility
45 Years to 70 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 25, 2021 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 2 Interventional Results available

Microbiota Restoration Therapy for Recurrent Clostridium Difficile Infection

NCT02299570
View directory record Official record
Conditions
Enterocolitis Clostridium Difficile Recurrent
Interventions
RBX2660 (microbiota suspension), Placebo
Biological · Other
Lead sponsor
Rebiotix Inc.
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
19
States / cities
Phoenix, Arizona • Aurora, Colorado • Jacksonville, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Sep 2, 2026, 7:09 AM EDT
Completed No phase listed Observational

Developing Self-Management Interventions After HCT

NCT03710031
View directory record Official record
Conditions
Hematopoietic Stem Cell Transplant (HSCT)
Interventions
PNS Tracking
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 99 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 8, 2021 · Synced Sep 2, 2026, 7:09 AM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

FMT in Uncomplicated Diverticulitis

NCT05373784
View directory record Official record
Conditions
Diverticulitis, Uncomplicated Diverticular Disease
Interventions
Fecal Microbiota Transplantation (FMT)
Biological
Lead sponsor
Justin Maykel
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Sep 2, 2026, 7:09 AM EDT
Completed No phase listed Observational

Comparison of Gut Microbiota, Inflammation and Symptoms Following Allogeneic HSCT

NCT02398708
View directory record Official record
Conditions
Graft vs Host Disease, Graft Versus Host Disease, Hematopoietic Stem Cell Transplantation, Peripheral Blood Stem Cell Transplantation
Interventions
Questionnaires, Blood Sample, Stool Sample, Clinical data
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 24, 2019 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Not applicable Interventional

Evaluation of Jarro-Dophilus EPS® Probiotic Formulations

NCT02693314
View directory record Official record
Conditions
Healthy
Interventions
Jarro-Dophilus EPS® (5 billion CFU/capsule), Jarro-Dophilus EPS® High Potency (25 billion CFU/capsule), Placebo
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 50 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 22, 2018 · Synced Sep 2, 2026, 7:09 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

A Randomized, Double-Blind Study to Assess the Effect of a Postbiotic on Oxidative Stress and Exercise Performance

NCT06795425
View directory record Official record
Conditions
Oxidative Stress, Healthy, Exercise-induced Muscle Damage, Exercise-induced Muscle Soreness, Immune Function, Gut Health, Microbiome Analysis, Exercise Performance, Exercise Metabolism
Interventions
Postbiotic Active Lifestyle Blend, Placebo
Dietary Supplement · Other
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 45 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 27, 2025 · Synced Sep 2, 2026, 7:09 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Oral Fecal Microbiota Transplant Feasibility Study in Alzheimer's Disease

NCT03998423
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Fecal Microbiota Transplant
Biological
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
45 Years and older
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 23, 2020 · Synced Sep 2, 2026, 7:09 AM EDT
Completed No phase listed Observational

Immune Response Under Immunotherapy in Metastatic NSCLC: Sputum, Blood Samples and Microbioata Study

NCT04804137
View directory record Official record
Conditions
Non-squamous Lung Cancer, Metastatic Lung Cancer
Interventions
Blood, sputum, saliva, stool
Other
Lead sponsor
University Hospital, Tours
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 16, 2024 · Synced Sep 2, 2026, 7:09 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Exercise, Hypertension, and Gut Dysbiosis in African Americans

NCT03897777
View directory record Official record
Conditions
Hypertension
Interventions
Exercise Training effect on Hypertension and Gut Dysbiosis
Behavioral
Lead sponsor
North Carolina Agriculture & Technical State University
Other
Eligibility
30 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2030
U.S. locations
1
States / cities
Greensboro, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 2, 2026, 7:09 AM EDT
Not yet recruiting Phase 1 Interventional

Familial Fecal Microbiota Transplant for the Treatment of Subjects With Autism Spectrum Disorders

NCT04630847
View directory record Official record
Conditions
Autism, Autism Spectrum Disorder
Interventions
Fecal Microbiota Transplant
Biological
Lead sponsor
ProgenaBiome
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Sep 22, 2025 · Synced Sep 2, 2026, 7:09 AM EDT
Terminated Phase 2 Interventional Results available

Prevention of Recurrence of Crohn's Disease by Fecal Microbiota Therapy (FMT)

NCT02417974
View directory record Official record
Conditions
Crohn's Disease
Interventions
Fecal Microbiota Transplant (FMT)
Biological
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 23, 2022 · Synced Sep 2, 2026, 7:09 AM EDT
Completed Phase 1 Interventional

Fecal Transplant for Ulcerative Colitis

NCT03948919
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
Fecal microbiota, Placebo
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 89 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 27, 2025 · Synced Sep 2, 2026, 7:09 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Pilot Study Assessing Intestinal Microbiota Diversification and Changes After Travel to South(East) Asia From the US

NCT03043300
View directory record Official record
Conditions
Dysbiosis
Interventions
Screening Criteria Review, Pre-Travel Questionnaire, Pre-Travel Stool Specimen Collection, Short-Term Post-Travel Questionnaire, Short-Term Post-Travel Stool Specimen Collection, Long-Term Post-Travel Questionnaire, Long-Term Post-Travel Stool Specimen Collection
Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 29, 2019 · Synced Sep 2, 2026, 7:09 AM EDT
Recruiting Phase 1 Interventional

A Pilot Study of Microbiota Transplant With Antibiotic Preconditioning and Fiber Supplementation in Pulmonary Arterial Hypertension (GUT RESTORE-PAH)

NCT06481852
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 · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 2, 2026, 7:09 AM 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 6, 2026 · Synced Sep 2, 2026, 7:09 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Assessing the Short-Term Effects of Multi-Fiber Supplementation on Gut Health

NCT07787026
View directory record Official record
Conditions
Mixed Fiber Supplementation for Healthy Adults
Interventions
Prebiotic, Placebo
Dietary Supplement
Lead sponsor
Brown University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 2, 2026, 7:09 AM EDT