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ClinicalTrials.gov public records Last synced Oct 20, 2026, 10:12 PM EDT

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Showing 121–144 of 1,014 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Microbiome Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Glycomacropeptide and Women's Health

NCT05551091
View directory record Official record
Conditions
Obesity
Interventions
glycomacropeptide (GMP)
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Up to 90 Years · Female only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 3, 2022 · Synced Oct 20, 2026, 10:12 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

The Correlation Between Gut Microbiome-host Interaction and Ventricular Arrhythmias.

NCT04447365
View directory record Official record
Conditions
Gut Microbiome
Interventions
device interrogation
Diagnostic Test
Lead sponsor
North Florida Foundation for Research and Education
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 17, 2021 · Synced Oct 20, 2026, 10:12 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Efficacy of Omega-3 Fatty Acid Therapy in Preventing Gastrointestinal Bleeding in Patients With CF-LVAD

NCT03784963
View directory record Official record
Conditions
Heart Failure, Gastrointestinal Bleeding
Interventions
Omega 3 fatty acids, Placebo
Drug · Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 13, 2021 · Synced Oct 20, 2026, 10:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of Changes to Skin Microbiome With Tape-Stripped Wounds

NCT03365934
View directory record Official record
Conditions
Healthy Volunteers
Interventions
ADHESIVE BANDAGE #1, ADHESIVE BANDAGE #2, ADHESIVE BANDAGE #3, Antibacterial Bandage with 0.8% BZK, Intact and No Bandage, Wounded and No Bandage
Device · Other
Lead sponsor
Johnson & Johnson Consumer Inc. (J&JCI)
Industry
Eligibility
18 Years to 55 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Fair Lawn, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 4, 2019 · Synced Oct 20, 2026, 10:12 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Successful Fiber Food Introduction in Short Bowel Syndrome

NCT06240065
View directory record Official record
Conditions
Short Gut Syndrome
Interventions
Green bean puree
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
4 Months to 17 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Oct 20, 2026, 10:12 PM EDT
Completed No phase listed Observational

Gastrointestinal Microbiome Influence on the Development of Bronchopulmonary Dysplasia

NCT03229967
View directory record Official record
Conditions
Bronchopulmonary Dysplasia
Interventions
16S rRNA stool microbiome sequencing.
Diagnostic Test
Lead sponsor
University of Tennessee
Other
Eligibility
0 Days to 7 Days
Enrollment
197 participants
Timeline
2017 – 2020
U.S. locations
2
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated May 10, 2023 · Synced Oct 20, 2026, 10:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Analyzing IBS to Identify Biomarkers and Microbiome Signatures

NCT02419963
View directory record Official record
Conditions
Diarrhoea Predominant Irritable Bowel Syndrome, IBS
Interventions
endoscopy for tissue biopsy, Blood Sample, Stool Sample
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 7, 2017 · Synced Oct 20, 2026, 10:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Mouthwashes on Oral Wound Healing and Microbiome

NCT05270382
View directory record Official record
Conditions
Wound Heal, Oral Microbiome
Interventions
cetylpyridinium chloride
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 45 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 22, 2024 · Synced Oct 20, 2026, 10:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Changes in Microbiota in Healthy Subjects Before and After Meditation Practices in a Controlled Environment

NCT06306469
View directory record Official record
Conditions
Healthy
Interventions
Meditation practice
Other
Lead sponsor
Pranic Healing Research Institute
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Lyndhurst, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 12, 2024 · Synced Oct 20, 2026, 10:12 PM EDT
Completed Not applicable Interventional

Enteral Nutrition Tolerance and the Gut Microbiome Study

NCT03795870
View directory record Official record
Conditions
Enteral Feeding Intolerance
Interventions
Polymeric Tube Feeds, Blenderized Tube Feeds
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 27, 2025 · Synced Oct 20, 2026, 10:12 PM EDT
Completed Phase 2 Interventional

Multi-Center Study of Panosyl-Isomaltooligosaccharides Adjunctive to PPI Therapy to Treat GERD

NCT05556824
View directory record Official record
Conditions
Gastroesophageal Reflux
Interventions
MHS-1031, Placebo
Drug · Other
Lead sponsor
Microbiome Health Sciences
Industry
Eligibility
18 Years to 75 Years
Enrollment
255 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
18
States / cities
Phoenix, Arizona • Los Angeles, California • Lake City, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Oct 20, 2026, 10:12 PM EDT
Completed Phase 1 Interventional

SER-262 Versus Placebo in Adults With Primary Clostridium Difficile Infection to Prevent Recurrence

NCT02830542
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
SER-262, Placebo
Drug
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
22
States / cities
Athens, Alabama • Fountain Valley, California • La Mesa, California + 19 more
Source: ClinicalTrials.gov public record
Updated Feb 6, 2023 · Synced Oct 20, 2026, 10:12 PM EDT
Recruiting Phase 2 Interventional

Modulation of the Gut Microbiome With Pembrolizumab Following Chemotherapy in Resectable Pancreatic Cancer

NCT05462496
View directory record Official record
Conditions
Pancreatic Cancer
Interventions
Biopsy, FOLFIRINOX, Ciprofloxacin, Metronidazole, Pembrolizumab, Surgical Resection
Procedure · Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
19 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 15, 2024 · Synced Oct 20, 2026, 10:12 PM EDT
Completed Not applicable Interventional

Maternal Probiotic Supplementation for Improved Outcomes in Infants of Diabetic Mothers

NCT05467150
View directory record Official record
Conditions
Infant of Diabetic Mother
Interventions
Probiotic Supplement
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
21 Years to 45 Years · Female only
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Oct 20, 2026, 10:12 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

WHNRC (Western Human Nutrition Research Center) Fiber Intervention Study

NCT04543877
View directory record Official record
Conditions
Inflammation, Vaccine, Intestinal Permeability, Typhoid Fever
Interventions
Inulin, Maltodextrin, Ty21a Typhoid Fever Vaccine
Dietary Supplement · Biological
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 59 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Oct 20, 2026, 10:12 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Precision Microbiota Interventions for Senoreduction Trial

NCT07462767
View directory record Official record
Conditions
HIV Infections, Alcohol Drinking, Aging, Immunosenescence
Interventions
Limosilactobacillus reuteri, Blueberry extract
Dietary Supplement
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
40 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 20, 2026, 10:12 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Mechanisms of Impaired HIV-associated B Cell and Pneumococcal Vaccine Responses

NCT02012309
View directory record Official record
Conditions
HIV, Pneumococcal Infections, Pneumococcal Vaccines
Interventions
PCV-13, PPSV-23
Biological
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2021
U.S. locations
3
States / cities
Aurora, Colorado • Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 18, 2020 · Synced Oct 20, 2026, 10:12 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Evaluation of Fecal Microbiome Changes After Antegrade Continence Enema Placement and Initiation of Bowel Flush Regimen

NCT05821309
View directory record Official record
Conditions
Constipation
Interventions
PEG 3350, PEG-3350 with electrolytes, Glycerin
Drug
Lead sponsor
Indiana University
Other
Eligibility
2 Years to 18 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
2
States / cities
Carmel, Indiana • Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Oct 20, 2026, 10:12 PM EDT
Recruiting Not applicable Interventional

Study to Understand Relationship Between Gut Health and Toxicities of Hormonal Breast Cancer Treatment

NCT07553234
View directory record Official record
Conditions
Breast Cancer
Interventions
Stool Sampling, Chia Seeds
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 20, 2026, 10:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Novel Probiotic on Gastrointestinal Health in Generally Healthy Adults

NCT05595980
View directory record Official record
Conditions
Gastrointestinal Health, Immune Health, Digestive Health
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
BIO-CAT Microbials, LLC
Industry
Eligibility
30 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 6, 2023 · Synced Oct 20, 2026, 10:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

American Cranberries to Prevent UTIs in Susceptible Women

NCT04626362
View directory record Official record
Conditions
Healthy
Interventions
Cranberry juice
Other
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 65 Years · Female only
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 4, 2026 · Synced Oct 20, 2026, 10:12 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating the Impact of a Virtually Supervised Exercise Intervention and Group Counseling on Inflammation and the Microbiome of Smokers at High Risk for Lung Cancer, BE FIT Trial

NCT06445192
View directory record Official record
Conditions
Lung Carcinoma
Interventions
Best Practice, Biospecimen Collection, Exercise Counseling, Exercise Intervention, Medical Device Usage and Evaluation, Physical Performance Testing, Questionnaire Administration, Telemedicine
Other · Procedure
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
40 Years to 80 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 13, 2026 · Synced Oct 20, 2026, 10:12 PM 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 15, 2019 · Synced Oct 20, 2026, 10:12 PM EDT
Completed No phase listed Observational

Schizophrenia and the Gut Microbiome

NCT02921243
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Not listed
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 64 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 19, 2019 · Synced Oct 20, 2026, 10:12 PM EDT