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Showing 1–24 of 42 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Frozen Microbiota Clear all
Active, not recruiting Phase 2 Interventional

Microbiota Transplant Therapy for Children With Both Autism Spectrum Disorder and Gastrointestinal Disorders

NCT06503978
View directory record Official record
Conditions
Autism Spectrum Disorder, Gastro-Intestinal Disorder, Constipation, Diarrhea
Interventions
MTP-101P, Vancomycin, Miralax, Antacid, Placebo MTP-101P, Placebo Vancomycin
Combination Product
Lead sponsor
Gut-Brain-Axis Therapeutics Inc.
Other
Eligibility
4 Years to 18 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 24, 2024 · Synced Sep 3, 2026, 5:38 PM EDT
Completed Not applicable Interventional Results available

Berries, Bugs, and the Blues

NCT05817383
View directory record Official record
Conditions
Depressive Symptoms
Interventions
Freeze-dried Blueberry Powder, Placebo Powder
Other
Lead sponsor
Hebrew SeniorLife
Other
Eligibility
65 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Roslindale, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 21, 2025 · Synced Sep 3, 2026, 5:38 PM 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 3, 2026, 5:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Microbiota Diversity and Composition and Polyphenol Bioavailability

NCT02677649
View directory record Official record
Conditions
Fecal Microbiota
Interventions
cranberry, placebo
Other
Lead sponsor
Tufts University
Other
Eligibility
20 Years to 55 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 22, 2017 · Synced Sep 3, 2026, 5:38 PM EDT
Active, not recruiting Phase 2 Interventional

Fecal Microbiota Transplant as Treatment of Hepatic Encephalopathy

NCT03420482
View directory record Official record
Conditions
Hepatic Encephalopathy
Interventions
Fecal Microbiota Transplant (FMT) oral capsules, Placebo oral capsule
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 30, 2025 · Synced Sep 3, 2026, 5:38 PM EDT
Completed Phase 1 Interventional

Fecal Microbiota Transplant for Relapsing Clostridium Difficile Infection in Adults and Children Using a Frozen Encapsulated Inoculum

NCT01914731
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fecal Microbiota Transplant
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
7 Years to 90 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 18, 2016 · Synced Sep 3, 2026, 5:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Blueberry Intake and Infant Gut Health

NCT05006989
View directory record Official record
Conditions
Infant Development
Interventions
Blueberry Powder, Placebo Powder
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
4 Months to 5 Months
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 29, 2025 · Synced Sep 3, 2026, 5:38 PM EDT
Recruiting Not applicable Interventional

Wild Blueberries for Gut, Brain, and Cardiometabolic Health in Prediabetes

NCT06735651
View directory record Official record
Conditions
Prediabetes (Insulin Resistance, Impaired Glucose Tolerance), Female, Adult, Endothelial Function (Reactive Hyperemia), Arterial Stiffness, Cognition, Oxidative Stress, Gut Microbiota, Overweight, Inflammation, Microvascular Function, Body Composition
Interventions
Wild Blueberry, Placebo
Dietary Supplement
Lead sponsor
Georgia State University
Other
Eligibility
20 Years to 65 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 3, 2026, 5:38 PM EDT
Completed Phase 1 Interventional

Evaluating the Safety and Efficacy of Oral Encapsulated Fecal Microbiota Transplant in Peanut Allergic Patients

NCT02960074
View directory record Official record
Conditions
Peanut Allergy
Interventions
Fecal Microbiota Capsule
Biological
Lead sponsor
Rima Rachid
Other
Eligibility
18 Years to 40 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Sep 3, 2026, 5:38 PM EDT
Completed Phase 1 Interventional

An Open-Label, Pilot Clinical Trial To Test The Safety And Feasibility Of A Suspension of Freeze-dried Microbiota In Patients Undergoing Colon Resection

NCT06692179
View directory record Official record
Conditions
Recurrent Clostridioides Difficile Infection, Colonic Surgery
Interventions
Orally administered preparation of fecal microbiota (MTP-101P)
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 3, 2026, 5:38 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Fecal Microbiota Transplantation for the Treatment of Obesity

NCT02741518
View directory record Official record
Conditions
Obesity
Interventions
Fecal Microbiota Transplantation, Placebo
Biological · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 6, 2020 · Synced Sep 3, 2026, 5:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

What's Hopping? Cricket Protein and Human Gut Microbiota

NCT03383341
View directory record Official record
Conditions
Healthy
Interventions
Cricket Protein Powder, Placebo control
Dietary Supplement · Other
Lead sponsor
Colorado State University
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 3, 2019 · Synced Sep 3, 2026, 5:38 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 19, 2014 · Synced Sep 3, 2026, 5:38 PM EDT
Completed No phase listed Observational

Determining the Microbiota Composition of the Middle Meatus in Parkinson's

NCT03336697
View directory record Official record
Conditions
Parkinson Disease
Interventions
Nasal swab
Diagnostic Test
Lead sponsor
Rush University Medical Center
Other
Eligibility
45 Years to 75 Years
Enrollment
48 participants
Timeline
2017 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 3, 2019 · Synced Sep 3, 2026, 5:38 PM EDT
Not yet recruiting Phase 1 Interventional

Microbiota Transplant With Antibiotic Preconditioning and Fiber Supplementation in PAH.

NCT07751120
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
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 3, 2026, 5:38 PM EDT
Active, not recruiting Phase 1 Interventional

Stool Transplant to Control Treatment-related Diarrhea

NCT04883762
View directory record Official record
Conditions
Fecal Microbiota Transplantation (FMT)
Interventions
Fecal Microbiota Transplantation (FMT)
Biological
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 3, 2026, 5:38 PM EDT
Terminated Phase 2 Interventional Results available

Safety of FMT: OpenBiome Outcomes and Longitudinal Follow-up (STOOL) for Recurrent Clostridium Difficile Infection

NCT02403622
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Fecal Microbiota Preparation
Drug
Lead sponsor
Microbiome Health Research Institute
Other
Eligibility
18 Years to 75 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
4
States / cities
Naperville, Illinois • Indianapolis, Indiana • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 22, 2021 · Synced Sep 3, 2026, 5:38 PM EDT
Recruiting Phase 2 Interventional

Further MT for Antibiotic-Resistant Bacterial Colonization

NCT05835206
View directory record Official record
Conditions
Intestinal Multi-drug Resistant Organism Colonization
Interventions
Microbiome Therapeutic, Placebo
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
6
States / cities
Atlanta, Georgia • Johns Creek, Georgia
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 3, 2026, 5:38 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Plants Optimizing Development Study (PODS)

NCT06276426
View directory record Official record
Conditions
Healthy Children
Interventions
Soy foods, Non-Soy Plant-Based Foods
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
8 Years to 11 Years
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced Sep 3, 2026, 5:38 PM EDT
Terminated Phase 2 Interventional

Investigational Microbiota Restoration Therapeutic for Hepatic Encephalopathy

NCT04155099
View directory record Official record
Conditions
Hepatic Encephalopathy, Cirrhosis, Liver
Interventions
RBX7455, Placebo
Biological
Lead sponsor
Ochsner Health System
Other
Eligibility
18 Years to 75 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Jefferson, Louisiana
Source: ClinicalTrials.gov public record
Updated Oct 2, 2023 · Synced Sep 3, 2026, 5:38 PM 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 14, 2021 · Synced Sep 3, 2026, 5:38 PM EDT
Recruiting Phase 1 Interventional

Study to Evaluate the Fecal Microbiota Transplantation (FMT) in the Treatment of Ulcerative Colitis

NCT05786404
View directory record Official record
Conditions
Active Ulcerative Colitis (UC)
Interventions
PRIM-DJ2727 - FROZEN, PRIM-DJ2727 - CAPSULES
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 9, 2024 · Synced Sep 3, 2026, 5:38 PM EDT
Recruiting Phase 1 Interventional

Intestinal Microbiota Transplantation in Patients With Chronic Heart Failure

NCT07490054
View directory record Official record
Conditions
Chronic Heart Failure
Interventions
MTP-101-C encapsulated Microbiota, Vancomycin, Neomycin
Biological · Drug
Lead sponsor
Melana Yuzefpolskaya, MD
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 3, 2026, 5:38 PM EDT
Terminated Phase 1 Interventional

Placebo Controlled Study of Fecal Microbiota Transplant (FMT) for a First or Second Episode of C. Difficile Infection in Adults Using a Frozen Encapsulated Inoculum

NCT02343328
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Fecal Microbiota Transplant, Placebo
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 12, 2017 · Synced Sep 3, 2026, 5:38 PM EDT