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ClinicalTrials.gov public records Last synced Oct 19, 2026, 6:36 PM EDT

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

Showing 289–312 of 437 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Probiotics Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Personalized Lifestyle Intervention for Improving Functional Health Outcomes Using N-of-1 Tent-Umbrella-Bucket Design

NCT04005456
View directory record Official record
Conditions
Health, Subjective, Gastrointestinal Dysfunction, Cardiovascular Risk Factor, Autoimmune Diseases, Dental Diseases, Hormone Disturbance, Neurocognitive Dysfunction
Interventions
Supplements and/or medical foods, Behavioral change support program, Food plan
Dietary Supplement · Behavioral · Other
Lead sponsor
Metagenics, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Gig Harbor, Washington
Source: ClinicalTrials.gov public record
Updated Oct 30, 2023 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Phase 1 Interventional

Effect of Lactobacillus Probiotic on Healthy Adults

NCT00748748
View directory record Official record
Conditions
Antibiotic-associated Diarrhea
Interventions
Culturelle
Biological
Lead sponsor
Fargo VA Medical Center
Federal
Eligibility
18 Years to 64 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Jul 4, 2012 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Phase 1 Interventional

Probiotic Lactobacillus GG (LGG) in Patients With Minimal Hepatic Encephalopathy

NCT00992290
View directory record Official record
Conditions
Minimal Hepatic Encephalopathy
Interventions
Lactobacillus GG, Placebo
Biological
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 7, 2014 · Synced Oct 19, 2026, 6:36 PM EDT
Active, not recruiting No phase listed Observational

Impact of GABA Probiotic Lactiplantibacillus Plantarum Lp815 on Sleep Outcomes in Participants with Self-Reported Sleep Disturbance

NCT06789718
View directory record Official record
Conditions
Insomnia (moderate)
Interventions
GABA Probiotic Lactiplantibacillus plantarum Lp815 (5 Billion cfu/dose), Placebo, Optional Sub-Study: Neurotransmitter Urine Test
Dietary Supplement · Other · Diagnostic Test
Lead sponsor
Verb Biotics LLC
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 23, 2025 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Safety, Tolerability and Host Response to Lactobacillus Johnsonii

NCT02349360
View directory record Official record
Conditions
Healthy
Interventions
L. johnsonii N6.2, Placebo
Biological
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 50 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 14, 2018 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Pre-, Pro- & Anti-biotics on Gut Microbiota

NCT01414010
View directory record Official record
Conditions
Human Gut Microbiota
Interventions
Trametes versicolor extract, Saccharomyces boulardii, Amoxicillin
Dietary Supplement · Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 39 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 24, 2017 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Not applicable Interventional

Impact of Probiotic Use on Immune Cell Function in Children

NCT02687503
View directory record Official record
Conditions
Respiratory Tract Infections
Interventions
Probiotic
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
12 Months to 36 Months
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
2
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 24, 2019 · Synced Oct 19, 2026, 6:36 PM EDT
Completed No phase listed Observational

Clinical Trial to Survey Results of Flourish Vaginal Care System for Recurrent Bacterial Vaginosis

NCT03734523
View directory record Official record
Conditions
Bacterial Vaginosis, Vaginal Flora Imbalance
Interventions
Flourish Vaginal Care System
Combination Product
Lead sponsor
Vaginal Biome Science
Other
Eligibility
18 Years to 52 Years · Female only
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Concord, New Hampshire
Source: ClinicalTrials.gov public record
Updated Jul 18, 2023 · Synced Oct 19, 2026, 6:36 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Flourish: Exploring the Early Infant Gut Microbiome

NCT07333482
View directory record Official record
Conditions
Microbiota, Gut Microbiome, Eczema, Microbiome
Interventions
Tailored Recommendations, Consult Call, Educational Email Series
Dietary Supplement · Behavioral
Lead sponsor
Seeding Inc
Industry
Eligibility
0 Months to 3 Months
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Inflammatory and Immune Response After High Intensity Exercise

NCT05277727
View directory record Official record
Conditions
Inflammatory Response
Interventions
Fucoidan 500mg, Placebo
Dietary Supplement
Lead sponsor
Marinova Pty Ltd
Industry
Eligibility
18 Years to 40 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 12, 2022 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Pharmacokinetic Study of a Novel Nutritional Product on Healthy Men and Women

NCT06316700
View directory record Official record
Conditions
Healthy Aging
Interventions
Nutritional supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 45 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Canfield, Ohio
Source: ClinicalTrials.gov public record
Updated May 4, 2025 · Synced Oct 19, 2026, 6:36 PM EDT
Terminated Not applicable Interventional Results available

Novel Therapies in Moderately Severe Acute Alcoholic Hepatitis

NCT01922895
View directory record Official record
Conditions
Acute Alcoholic Hepatitis
Interventions
Lactobacillus Rhamnosus GG, Placebo for Probiotic
Dietary Supplement · Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
21 Years to 70 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2021
U.S. locations
3
States / cities
Louisville, Kentucky • Cleveland, Ohio • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 2, 2022 · Synced Oct 19, 2026, 6:36 PM EDT
Withdrawn Not applicable Interventional

The Effect of Yogurt in Cancer Patient With Moderate Gastrointestinal (GI) Symptoms

NCT03177681
View directory record Official record
Conditions
Malignant Neoplasms of Independent (Primary) Multiple Sites
Interventions
Tongue Assessment, Stool Sample, Questionnaires, Holter Monitor, Yogurt
Other · Behavioral · Device
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 27, 2023 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of Bacillus Subtilis R0179 in Healthy Young Adults

NCT01802151
View directory record Official record
Conditions
Healthy
Interventions
B. subtilis R0179, Placebo
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 50 Years
Enrollment
83 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 17, 2015 · Synced Oct 19, 2026, 6:36 PM EDT
Not listed Not applicable Interventional

Probiotics Pilot Project

NCT04247854
View directory record Official record
Conditions
Staphylococcus Aureus
Interventions
Bacillus subtilis probiotic, Placebo
Dietary Supplement · Other
Lead sponsor
Rothman Institute Orthopaedics
Other
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 20, 2020 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Not applicable Interventional

A Study to Assess the Efficacy and Safety of Salix Probiotic Blend in Participants With Functional Gastrointestinal Disturbances

NCT04155801
View directory record Official record
Conditions
Functional Gastrointestinal Disorders
Interventions
Salix Probiotic Blend
Dietary Supplement
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
188 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Apr 24, 2020 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Not applicable Interventional

Effect of Flourish HEC Vaginal Care System on BV Recurrence and the Vaginal Microbiome

NCT05701722
View directory record Official record
Conditions
Bacterial Vaginosis
Interventions
Flourish HEC Vaginal Care System
Device
Lead sponsor
Vaginal Biome Science
Other
Eligibility
18 Years to 52 Years · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 7, 2024 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Phase 1Phase 2 Interventional

Beginning Assessment of Cutaneous Treatment Efficacy of Roseomonas in Atopic Dermatitis

NCT03018275
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
Roseomonas mucosa
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Years to 99 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 27, 2019 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Phase 3 Interventional

Lactobacillus GG in the Prophylaxis of Ventilator Associated Pneumonia

NCT00613795
View directory record Official record
Conditions
Pneumonia, Ventilator Associated Pneumonia
Interventions
Lactobacillus GG, placebo
Dietary Supplement
Lead sponsor
Creighton University
Other
Eligibility
19 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Mar 18, 2010 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A f-MRI Study Of Affective Changes Associated With Four Weeks Consumption Of A Fermented Dairy Product In Healthy Women

NCT01398163
View directory record Official record
Conditions
Healthy Adult Women
Interventions
1-Fermented Dairy Product (test), 2-Milk-based non-fermented dairy product(control)
Other
Lead sponsor
Danone Global Research & Innovation Center
Industry
Eligibility
18 Years to 60 Years · Female only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 25, 2016 · Synced Oct 19, 2026, 6:36 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Diabetic Cardiomyopathy and Heart Failure

NCT05571865
View directory record Official record
Conditions
Diabetic Cardiomyopathies, Heart Failure
Interventions
Probiotic
Dietary Supplement
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 70 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jan 31, 2025 · Synced Oct 19, 2026, 6:36 PM EDT
Not listed No phase listed Observational

Select Nutrient and Gene Variant Analysis in a Targeted Diet and Lifestyle Intervention Reduces Preterm Birth

NCT05436119
View directory record Official record
Conditions
Premature Birth, Pre-Eclampsia, Small for Gestational Age Infant
Interventions
GrowBaby
Dietary Supplement
Lead sponsor
GrowBaby Life Project
Other
Eligibility
Female only
Enrollment
200 participants
Timeline
2022 – 2023
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jun 28, 2022 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Novel Nutritional Product on Nutrient Gaps and Gut Health in Adults With Occasional Gastrointestinal Issues

NCT06564285
View directory record Official record
Conditions
Gastrointestinal Microbiome, Nutrition, Healthy
Interventions
AG1 - Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated May 4, 2025 · Synced Oct 19, 2026, 6:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The EFFECT Study: Probiotic and HMO Supplementation in Infants

NCT03994315
View directory record Official record
Conditions
Infant Gut Microbiome
Interventions
B. infantis EVC001, Lacto-N-tetraose (LNT)
Other
Lead sponsor
Evolve BioSystems, Inc.
Industry
Eligibility
Up to 60 Days
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 9, 2020 · Synced Oct 19, 2026, 6:36 PM EDT