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ClinicalTrials.gov public records Last synced Oct 20, 2026, 3:25 AM EDT

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Showing 73–96 of 985 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Microbiome Clear all
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, 3:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Aronia Berry Consumption on Inflammation, Metabolites, and the Gut Microbiome

NCT05255718
View directory record Official record
Conditions
Inflammation, Metabolic Disorder, Hypertriglyceridemia
Interventions
Aronia juice, Placebo
Dietary Supplement · Other
Lead sponsor
Montana State University
Other
Eligibility
18 Years to 60 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Bozeman, Montana
Source: ClinicalTrials.gov public record
Updated Mar 13, 2024 · Synced Oct 20, 2026, 3:25 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Investigation of the Gut Microbiome and Statin Response

NCT04098003
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Rosuvastatin, Placebo
Drug
Lead sponsor
Sony Tuteja
Other
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Phildelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Oct 20, 2026, 3:25 AM EDT
Active, not recruiting No phase listed Observational

Metagenomic Evaluation of the Gut Microbiome in Patients With Lynch Syndrome and Other Hereditary Colonic Polyposis Syndromes

NCT02371135
View directory record Official record
Conditions
Lynch Syndrome, Hereditary Colonic Polyposis Syndromes
Interventions
colonic biopsies, questionnaires
Genetic
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Oct 20, 2026, 3:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate the Efficacy of a Postbiotic Supplement on Menopausal Symptoms in Premenopausal Women

NCT07570043
View directory record Official record
Conditions
Perimenopause, Menopausal Symptoms, Menopause-Related Quality of Life, Microbiome
Interventions
Supplement, Placebo
Dietary Supplement · Other
Lead sponsor
Able Biolabs, LLC
Other
Eligibility
35 Years to 55 Years · Female only
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Oct 20, 2026, 3:25 AM EDT
Completed Not applicable Interventional

The Use of A Prebiotic to Promote a Healthy Gut Microbiome in Pediatric Stem Cell Transplant Recipients

NCT04111471
View directory record Official record
Conditions
Microbial Colonization
Interventions
Prebiotics, Placebos
Dietary Supplement
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
2 Years to 18 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 21, 2024 · Synced Oct 20, 2026, 3:25 AM EDT
Completed Not applicable Interventional

Comparing the Effectiveness of 2 Diets for Patients With Irritable Bowel Syndrome

NCT01624610
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Dietary intervention
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
2
States / cities
Indianapolis, Indiana • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 31, 2016 · Synced Oct 20, 2026, 3:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Systems Biology of Flu Vaccine in Healthy Adults With and Without the Use of Antibiotics

NCT02154061
View directory record Official record
Conditions
Influenza
Interventions
IIV Flu Vaccine, Metronidazole, Neomycin, Vancomycin
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 40 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 15, 2018 · Synced Oct 20, 2026, 3:25 AM EDT
Completed Not applicable Interventional

A Clinical Study to Assess the Effects of KB295 in Patients With Ulcerative Colitis (UC) on Gut Microbiota Structure and Function

NCT04508413
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
KB295
Other
Lead sponsor
Kaleido Biosciences
Industry
Eligibility
18 Years to 75 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Chicago, Illinois • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jan 24, 2022 · Synced Oct 20, 2026, 3:25 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Is the Human Microbiome Altered in Patients With Axial Spondyloarthritis?

NCT02962479
View directory record Official record
Conditions
Axial Spondyloarthritis, Ankylosing Spondylitis
Interventions
Not listed
Lead sponsor
Eyal Kedar
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Potsdam, New York
Source: ClinicalTrials.gov public record
Updated Nov 11, 2016 · Synced Oct 20, 2026, 3:25 AM EDT
Recruiting Not applicable Interventional

A Pilot Study Examining Low Sulfur Diet as Treatment for Persistent Symptoms in Quiescent Crohn's Disease

NCT05849012
View directory record Official record
Conditions
Crohn's Disease in Remission
Interventions
Low Sulfur Diet, Usual Diet
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Oct 20, 2026, 3:25 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Development of a Microbiome Non-invasive Diagnosis Tool

NCT03330444
View directory record Official record
Conditions
Infertility of Uterine Origin
Interventions
Endometrial biopsy and endometrial fluid collection
Procedure
Lead sponsor
Igenomix
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
452 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
4
States / cities
Norwalk, Connecticut • Margate, Florida • Chesterfield, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2020 · Synced Oct 20, 2026, 3:25 AM EDT
Completed No phase listed Observational

Isolation and Characterization of Multiple Microbial Species From Diverse Healthy Adults

NCT05150184
View directory record Official record
Conditions
Human Microbiome
Interventions
Non-interventional
Other
Lead sponsor
Danisco
Industry
Eligibility
18 Years to 50 Years
Enrollment
52 participants
Timeline
2021 – 2023
U.S. locations
1
States / cities
Beltsville, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 7, 2023 · Synced Oct 20, 2026, 3:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mediterranean Diet and the Gut Microbiome

NCT03269032
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
American Diet, Mediterranean-style Diet
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 22, 2023 · Synced Oct 20, 2026, 3:25 AM EDT
Withdrawn Phase 4 Interventional

Early-onset Dupilumab Effects in CRSwNP

NCT06188871
View directory record Official record
Conditions
Chronic Rhinosinusitis With Nasal Polyps
Interventions
Dupilumab
Drug
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated May 9, 2024 · Synced Oct 20, 2026, 3:25 AM EDT
Recruiting Not applicable Interventional

Capillary Endoscopy Aspiration Catheter

NCT04418258
View directory record Official record
Conditions
Microbiota, SIBO
Interventions
Capillary Endoscopy Aspiration Catheter, Endoscopy Aspiration Catheter
Device
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Oct 20, 2026, 3:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Correlating Probiotic Dietary Supplements During Pregnancy With Maternal Microbiome Profiles

NCT03611647
View directory record Official record
Conditions
Pregnancy Related
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
3
States / cities
La Jolla, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 11, 2019 · Synced Oct 20, 2026, 3:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigation of Cinnamon Spice on Glucose Tolerance in Subjects With Pre-diabetes

NCT04342624
View directory record Official record
Conditions
PreDiabetes, Blood Glucose, High
Interventions
Cinnamon, Placebo
Dietary Supplement · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
20 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 6, 2023 · Synced Oct 20, 2026, 3:25 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pediatric Microbiome Study With Children Now Approximately 8-10 Years Old.

NCT03485755
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Not listed
Lead sponsor
Johnson & Johnson Consumer Inc. (J&JCI)
Industry
Eligibility
8 Years to 60 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Skillman, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 26, 2019 · Synced Oct 20, 2026, 3:25 AM EDT
Completed Not applicable Interventional

Effects of Prebiotics on Gut Microbiome in Patients Undergoing HSCT

NCT04629430
View directory record Official record
Conditions
Multiple Myeloma, Acute Myeloid Leukemia, Acute Lymphoblastic Leukemia, Non Hodgkin Lymphoma, Acute Lymphocytic Leukemia, Hodgkin Lymphoma, Hodgkin Disease, Myelofibrosis, Myelodysplastic Syndromes, Myeloproliferative Neoplasm, Sickle Cell Disease, Mantle Cell Lymphoma
Interventions
Pre-biotic foods/drinks
Other
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 4, 2023 · Synced Oct 20, 2026, 3:25 AM EDT
Completed No phase listed Observational

Microbiome in Lung Cancer and Other Malignancies

NCT03688347
View directory record Official record
Conditions
Lung Cancer, Cancer, Malignancy
Interventions
Nasal Swab, Oral Swab, Stool Collection, Microbiome analysis, DNA Banking, Skin Swab
Procedure · Other · Genetic
Lead sponsor
Taher Abu Hejleh
Other
Eligibility
18 Years to 100 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated May 11, 2022 · Synced Oct 20, 2026, 3:25 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Lung Microbiome in Sarcoidosis

NCT02520323
View directory record Official record
Conditions
Sarcoidosis
Interventions
Blood draw, Bronchoscopy, Questionnaires
Other · Procedure · Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
30 Years to 60 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 5, 2017 · Synced Oct 20, 2026, 3:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Safety and Efficacy of a Prebiotic Blend in Healthy Humans

NCT07514741
View directory record Official record
Conditions
Healthy Adult Participants
Interventions
Fiber Blend 1 (Low Dose), Fiber Blend 2 (High Dose), Placebo
Dietary Supplement · Other
Lead sponsor
LOAM Science
Other
Eligibility
18 Years to 60 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
West Hollywood, California
Source: ClinicalTrials.gov public record
Updated Oct 14, 2026 · Synced Oct 20, 2026, 3:25 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Probiotics Effect on the Female Urinary Microbiome ProFUM Trial (Probiotics Effect on the Female Urinary Microbiome)

NCT03250208
View directory record Official record
Conditions
Healthy
Interventions
Probiotic, Placebo
Dietary Supplement · Other
Lead sponsor
Loyola University
Other
Eligibility
18 Years and older · Female only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Maywood, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 1, 2019 · Synced Oct 20, 2026, 3:25 AM EDT