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 come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 23, 2026, 6:53 AM EDT

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

Showing 433–456 of 1,015 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Microbiome Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Study to Determine the Effect of Synbiotics in Patients With Pre-diabetes

NCT04428606
View directory record Official record
Conditions
PreDiabetes
Interventions
Metabolic Rheostat, Butyrate Ultra, Placebo
Dietary Supplement
Lead sponsor
Zhaoping Li
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 16, 2022 · Synced Oct 23, 2026, 6:53 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Microbiome Sampling During Endurance Exercise

NCT06903806
View directory record Official record
Conditions
Healthy, Exercise-Induced Lactic Acidemia
Interventions
Treadmill Exercise, Cooling Gloves, Microbiome Capsule
Other · Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 1, 2025 · Synced Oct 23, 2026, 6:53 AM EDT
Active, not recruiting Not applicable Interventional

Gut Microbe Composition, Exercise, and Breast Breast Cancer Survivors

NCT04088708
View directory record Official record
Conditions
Breast Cancer, Gut Microbiome, Exercise, Fatigue
Interventions
Aerobic Exercise Training, Attention Control
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 74 Years · Female only
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Oct 23, 2026, 6:53 AM EDT
Not listed No phase listed Observational

Microbiome and Bariatric Surgery

NCT03065426
View directory record Official record
Conditions
Weight Change, Body
Interventions
Not listed
Lead sponsor
North Dakota State University
Other
Eligibility
18 Years to 65 Years
Enrollment
144 participants
Timeline
2017 – 2021
U.S. locations
2
States / cities
Fargo, North Dakota • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 16, 2017 · Synced Oct 23, 2026, 6:53 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Microbiome Acquisition and Progression of Inflammation and Airway Disease in Infants and Children With Cystic Fibrosis

NCT01661491
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Not listed
Lead sponsor
Yale University
Other
Eligibility
3 Months to 4 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2020
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 13, 2023 · Synced Oct 23, 2026, 6:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessment of the Effects of Different Implant Abutment Occluding Materials on Dental Implant Health Parameters and Microbiology

NCT02625597
View directory record Official record
Conditions
Peri-Implantitis, Dental Implant Failed, Dental Implant Failure Nos
Interventions
Cotton Pellet, Polytetrafluoroethylene Tape, Synthetic Foam, Polyvinylsiloxane
Device
Lead sponsor
Stony Brook University
Other
Eligibility
18 Years to 85 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Dec 9, 2015 · Synced Oct 23, 2026, 6:53 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Alteration of Stool Microbiota in Preterm Infants With Anemia

NCT03554278
View directory record Official record
Conditions
Anemia, Neonatal, Necrotizing Enterocolitis, Dysbiosis
Interventions
Not listed
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
7 Days to 30 Days
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 5, 2025 · Synced Oct 23, 2026, 6:53 AM EDT
Terminated No phase listed Observational

A Study to Investigate Cystic Fibrosis Pulmonary Exacerbations and the Lung Microbiome

NCT05088447
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Not listed
Lead sponsor
Stanford University
Other
Eligibility
Up to 22 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Oct 22, 2021 · Synced Oct 23, 2026, 6:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Lactobacillus on the Microbiome of Household Contacts Exposed to COVID-19

NCT04399252
View directory record Official record
Conditions
Microbiome
Interventions
Lactobacillus rhamnosus GG, Lactobacillus rhamnosus GG Placebo
Dietary Supplement
Lead sponsor
Duke University
Other
Eligibility
1 Year and older
Enrollment
182 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 17, 2024 · Synced Oct 23, 2026, 6:53 AM EDT
Completed Not applicable Interventional

Placebo-Controlled Clinical Nutrition Study of the Safety and Metabolic Effects of Two Medical Foods in Type 2 Diabetes

NCT03893422
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
WB-010, WB-011, Placebo
Other
Lead sponsor
Pendulum Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
5
States / cities
Torrance, California • Tustin, California • Youngstown, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2020 · Synced Oct 23, 2026, 6:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Lean and Obese: Dietary Inflammation

NCT05327868
View directory record Official record
Conditions
Obesity, Inflammation, Dietary Fat
Interventions
Low Fat Diet (LFD), High Fat Diet (HFD)
Other
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
50 Years to 79 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Oct 23, 2026, 6:53 AM EDT
Recruiting Phase 2 Interventional

Microbiotic Product to Promote Microbiome Health and Improve Chemotherapy Delivery

NCT05296681
View directory record Official record
Conditions
Metastatic Colon Carcinoma, Stage IV Colon Cancer AJCC v8, Stage IVA Colon Cancer AJCC v8, Stage IVB Colon Cancer AJCC v8, Stage IVC Colon Cancer AJCC v8
Interventions
NBT-NM108
Drug
Lead sponsor
Howard S. Hochster, MD
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
10
States / cities
Hamilton, New Jersey • Lakewood, New Jersey • Livingston, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Oct 23, 2026, 6:53 AM EDT
Recruiting Not applicable Interventional

The Food Environment, Microbial Cysteine Metabolism, and Cancer Disparities

NCT07086833
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Low Cysteine Diet, High Cysteine Diet
Other
Lead sponsor
Purdue University
Other
Eligibility
45 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Indianapolis, Indiana • West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Oct 23, 2026, 6:53 AM 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 6, 2026 · Synced Oct 23, 2026, 6:53 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Accelerated Genital Tract Aging in HIV: Estradiol Clinical Trial

NCT04079218
View directory record Official record
Conditions
HIV Infection, Vaginal Atrophy, Menopause, Menopause Related Conditions, Aging, Premature Aging, Atrophic Vaginitis, Dysbiosis, Vaginitis
Interventions
Estradiol Vaginal Insert
Drug
Lead sponsor
Kerry Murphy
Other
Eligibility
45 Years to 70 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Mar 14, 2025 · Synced Oct 23, 2026, 6:53 AM EDT
Completed Not applicable Interventional

Effects of Curcumin Supplementation on Gut Barrier Function in Patients With Metabolic Syndrome

NCT03542240
View directory record Official record
Conditions
Obesity, High Blood Pressure, High Cholesterol, Type2 Diabetes, Heart Diseases
Interventions
Curcumin
Dietary Supplement
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 26, 2021 · Synced Oct 23, 2026, 6:53 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Microbiome and Axial Spondyloarthritis

NCT04713995
View directory record Official record
Conditions
Axial Spondyloarthritis
Interventions
Dietary recommendations
Other
Lead sponsor
Viome
Industry
Eligibility
18 Years and older
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Bothell, Washington
Source: ClinicalTrials.gov public record
Updated Jul 8, 2022 · Synced Oct 23, 2026, 6:53 AM EDT
Recruiting Not applicable Interventional

Poi for Mama: a Pilot to Improve Maternal Microbiome and Gestational Diabetes Risk

NCT07446205
View directory record Official record
Conditions
Gestational Diabetes Mellitus (GDM), Pregnancy
Interventions
Fermented Poi
Other
Lead sponsor
University of Hawaii
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
3
States / cities
Honolulu, Hawaii • Waimanalo, Hawaii
Source: ClinicalTrials.gov public record
Updated Jul 2, 2026 · Synced Oct 23, 2026, 6:53 AM EDT
Recruiting No phase listed Observational

Using Microbiome to Predict Durvalumab Toxicity in Post- Concurrent Chemoradiation Therapy (CCRT) NSCLC Patients

NCT04680377
View directory record Official record
Conditions
NSCLC, Stage III, Locally Advanced Lung Carcinoma
Interventions
Not listed
Lead sponsor
Jun Zhang, MD, PhD
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
2
States / cities
Kansas City, Kansas • Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated May 8, 2024 · Synced Oct 23, 2026, 6:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of Lactobacillus Rhamnosus GG Vs. Placebo in Elderly Subjects Receiving Trivalent Inactivated Influenza Vaccine

NCT01368029
View directory record Official record
Conditions
Healthy, Elderly
Interventions
Lactobacillus rhamnosus GG ATCC 53103 (LGG), Placebo
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
65 Years to 80 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Oct 23, 2026, 6:53 AM EDT
Not yet recruiting Not applicable Interventional

Fermented Foods and Bowel Health in SCI

NCT07640152
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
fermented foods, Control diet, Sitz Marker Test
Other · Device
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 70 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Oct 23, 2026, 6:53 AM EDT
Recruiting Early Phase 1 Interventional

Effects of a Probiotic Intervention on the Gut and Vaginal Microbiome in Patients With Advanced or Recurrent Ovarian Cancer Undergoing Treatment With Platinum Chemotherapy

NCT07144826
View directory record Official record
Conditions
Advanced Ovarian Carcinoma, Recurrent Ovarian Carcinoma, Stage II Ovarian Cancer AJCC v8, Stage III Ovarian Cancer AJCC v8, Stage IV Ovarian Cancer AJCC v8
Interventions
Biospecimen Collection, Placebo Administration, Probiotic, Questionnaire Administration
Procedure · Drug · Dietary Supplement + 1 more
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
161 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Oct 23, 2026, 6:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Red and Processed Meat Effects on the Metabolome and Microbiome

NCT05274906
View directory record Official record
Conditions
Controlled Feeding Trial, Healthy Eating Index, Red Meat, Meat
Interventions
Randomized, cross-over controlled feeding trial testing a Healthy Eating Index 2015 (HEI-2015) diet with and without red and processed meat
Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 50 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 5, 2024 · Synced Oct 23, 2026, 6:53 AM EDT
Recruiting Not applicable Interventional

Effects of Grape Consumption on the Immune-Gut Axis in Obesity

NCT07231484
View directory record Official record
Conditions
Obesity &Amp; Overweight
Interventions
Freeze-dried grape powder, Placebo powder
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 60 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 23, 2026, 6:53 AM EDT