Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 12, 2026, 9:12 AM EDT

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

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Stool Microbiome Clear all
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 12, 2026, 9:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

To Investigate the Effect of Arabinogalactan on the Gut Microbiome in Adults

NCT04351841
View directory record Official record
Conditions
Gut Microbiota
Interventions
arabinogalactan, maltodextrin
Other
Lead sponsor
Biofortis, Merieux NutriSciences
Industry
Eligibility
18 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 21, 2020 · Synced Sep 12, 2026, 9:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Time-restricted Eating on Nutrient Absorption in Healthy Adults

NCT04877262
View directory record Official record
Conditions
Digestibility
Interventions
weight maintenance diet (WMD)
Other
Lead sponsor
Florida State University
Other
Eligibility
20 Years to 45 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Jun 22, 2022 · Synced Sep 12, 2026, 9:12 AM EDT
Terminated No phase listed Observational

Gut Microbiome in Fecal Samples From Patients With Metastatic Cancer Undergoing Chemotherapy or Immunotherapy

NCT02960282
View directory record Official record
Conditions
Metastatic Carcinoma, Stage IV Colorectal Cancer, Stage IVA Colorectal Cancer, Stage IVB Colorectal Cancer
Interventions
Biospecimen Collection, Laboratory Biomarker Analysis
Procedure · Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 9, 2022 · Synced Sep 12, 2026, 9:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Fiber Effectively Educates & Directs the Microbiome Study

NCT06395324
View directory record Official record
Conditions
Microbial Colonization
Interventions
High arabinose diet
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 50 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Sep 12, 2026, 9:12 AM EDT
Completed Not applicable Interventional

Salvia Hispanica Seed in Reducing Risk of Disease Recurrence in Patients With Non-Hodgkin Lymphoma

NCT02652715
View directory record Official record
Conditions
Adult Nasal Type Extranodal NK/T-Cell Lymphoma, Adult T-Cell Leukemia/Lymphoma, Anaplastic Large Cell Lymphoma, Angioimmunoblastic T-Cell Lymphoma, B Lymphoblastic Leukemia/Lymphoma, Blastic Plasmacytoid Dendritic Cell Neoplasm, Burkitt Leukemia, Central Nervous System Lymphoma, Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma, Diffuse Large B-Cell Lymphoma, Enteropathy-Associated T-Cell Lymphoma, Extranodal Marginal Zone Lymphoma of Mucosa-Associated Lymphoid Tissue, Grade 1 Follicular Lymphoma, Grade 2 Follicular Lymphoma, Grade 3 Follicular Lymphoma, Hepatosplenic T-Cell Lymphoma, Lymphoplasmacytic Lymphoma, Mantle Cell Lymphoma, Mediastinal (Thymic) Large B-Cell Lymphoma, Mycosis Fungoides, Nasal Type Extranodal NK/T-Cell Lymphoma, Nodal Marginal Zone Lymphoma, Peripheral T-Cell Lymphoma, Not Otherwise Specified, Post-Transplant Lymphoproliferative Disorder, Primary Cutaneous Anaplastic Large Cell Lymphoma, Primary Effusion Lymphoma, Sezary Syndrome, Splenic Marginal Zone Lymphoma, Subcutaneous Panniculitis-Like T-Cell Lymphoma, Systemic Anaplastic Large Cell Lymphoma, T Lymphoblastic Leukemia/Lymphoma, Transformed Recurrent Non-Hodgkin Lymphoma
Interventions
Laboratory Biomarker Analysis, Quality-of-Life Assessment, Questionnaire Administration, Salvia hispanica Seed
Other · Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 14, 2019 · Synced Sep 12, 2026, 9:12 AM EDT
Enrolling by invitation Phase 1 Interventional

Fecal Microbiome Transplant

NCT02636517
View directory record Official record
Conditions
Clostridium Difficile, Inflammatory Bowel Disease, Crohn's Disease, Ulcerative Colitis
Interventions
Fecal Microbiota Transplant
Biological
Lead sponsor
Judith Kelsen
Other
Eligibility
3 Years to 21 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 12, 2026, 9:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Autologous Fecal Therapy

NCT02046525
View directory record Official record
Conditions
Infectious Disease of Digestive Tract
Interventions
Autologous fecal microbiota therapy, Placebo
Biological · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 3, 2019 · Synced Sep 12, 2026, 9:12 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

OptiCal Study -Optimizing Fecal Calprotectin Monitoring: a Clinical Study Comparing CalproLab Against PhiCal and Evaluating Its Association With the Gut Microbiome

NCT03051204
View directory record Official record
Conditions
Crohn Disease, Ulcerative Colitis, Irritable Bowel Syndrome, Celiac Disease, Healthy
Interventions
Not listed
Lead sponsor
University of California, Los Angeles
Other
Eligibility
4 Years to 65 Years
Enrollment
175 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Sep 12, 2026, 9:12 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 12, 2026, 9:12 AM EDT
Active, not recruiting Phase 2 Interventional

PMT for MDRO Decolonization

NCT05632315
View directory record Official record
Conditions
Multidrug Resistant Bacterial Infection, Enterobacteriaceae Infections, Pseudomonas Aeruginosa, VRE Infection, Methicillin-resistant Staphylococcus Aureus
Interventions
PMT
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
3
States / cities
Atlanta, Georgia • St Louis, Missouri • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 12, 2026, 9:12 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Sample Collection From Healthy Volunteers for Assay Optimization

NCT03538600
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Years to 80 Years
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2043
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Sep 12, 2026, 9:12 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Safety and Efficacy of Fecal Microbiome Transplantation (FMT) in the Treatment of Antibiotic Dependent Pouchitis (ADP)

NCT02782325
View directory record Official record
Conditions
Pouchitis
Interventions
Active FMT, then open label FMT, Placebo FMT, then open label FMT
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 75 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 13, 2019 · Synced Sep 12, 2026, 9:12 AM 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 4, 2021 · Synced Sep 12, 2026, 9:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Study of Triphala and Rubia Cordifolia on Gut Microbiome and Skin

NCT03477825
View directory record Official record
Conditions
Sebum Production, Stool Microbiome, Transepidermal Water Loss, Facial Brrightness, Erythema, Wrinkles, Facial Shine
Interventions
Placebo Oral Tablet, Rubia Cordifolia, Triphala
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 60 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 14, 2019 · Synced Sep 12, 2026, 9:12 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Novel Fecal Sample Collection Method for Metagenomic Analyses

NCT05172414
View directory record Official record
Conditions
Healthy
Interventions
No intervention
Other
Lead sponsor
Onegevity Health
Industry
Eligibility
18 Years to 79 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 31, 2023 · Synced Sep 12, 2026, 9:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Soluble Corn Fiber on Gastrointestinal Tolerance and Fecal Microbiome in Healthy Children

NCT05213494
View directory record Official record
Conditions
Gastrointestinal Tolerance
Interventions
Inulin, soluble corn fiber
Other
Lead sponsor
Tate & Lyle
Industry
Eligibility
3 Years to 9 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 27, 2022 · Synced Sep 12, 2026, 9:12 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Pilot Study of Gut Commensals in Antiphospholipid Syndrome

NCT01787305
View directory record Official record
Conditions
Antiphospholipid Syndrome (APS)
Interventions
Not listed
Lead sponsor
Yale University
Other
Eligibility
18 Years to 70 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 12, 2025 · Synced Sep 12, 2026, 9:12 AM EDT
Recruiting Phase 2 Interventional

Fecal Microbiome Transplant to Remodel Intestinal Microbiota for Patients With Relapsed or Refractory Lymphoma With Exposure to High-Risk Antibiotics Who Are Receiving Chimeric Antigen Receptor T Cells

NCT07042438
View directory record Official record
Conditions
Recurrent Diffuse Large B-Cell Lymphoma, Recurrent High Grade B-Cell Lymphoma With MYC and BCL2 or BCL6 Rearrangements, Recurrent Transformed Follicular Lymphoma to Diffuse Large B-Cell Lymphoma, Refractory Diffuse Large B-Cell Lymphoma, Refractory High Grade B-Cell Lymphoma With MYC and BCL2 or BCL6 Rearrangements, Refractory Transformed Follicular Lymphoma to Diffuse Large B-Cell Lymphoma
Interventions
Axicabtagene Ciloleucel, Biospecimen Collection, Chemotherapy, Fecal Microbiota Transplantation, Leukapheresis, Placebo Administration
Biological · Procedure · Drug
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Sep 12, 2026, 9:12 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

ARGONAUT: Stool and Blood Sample Bank for Cancer Patients

NCT04638751
View directory record Official record
Conditions
Non-small Cell Lung Cancer, Colorectal Cancer, Triple Negative Breast Cancer, Pancreas Cancer
Interventions
Immunotherapy, Chemotherapy, CRC surgical resection, Colonoscopy
Drug · Procedure
Lead sponsor
Persephone Biosciences
Industry
Eligibility
18 Years and older
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
10
States / cities
Orange, California • San Diego, California • Miami, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2024 · Synced Sep 12, 2026, 9:12 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Irritable Bowel Syndrome and Control Volunteers: Diet Challenge

NCT03983434
View directory record Official record
Conditions
IBS - Irritable Bowel Syndrome
Interventions
Inulin
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 29, 2025 · Synced Sep 12, 2026, 9:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pulse Biomarker Discovery

NCT04887584
View directory record Official record
Conditions
Body Weight
Interventions
Control diet, Low Pulse diet, High Pulse diet
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Oct 25, 2024 · Synced Sep 12, 2026, 9:12 AM 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 12, 2026, 9:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

ButyraGen™, Short Chain Fatty Acids and Gut Microbiome

NCT05601635
View directory record Official record
Conditions
Healthy
Interventions
ButyraGen™
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 24, 2023 · Synced Sep 12, 2026, 9:12 AM EDT