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ClinicalTrials.gov public records Last synced Oct 30, 2026, 3:49 PM EDT

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Showing 145–168 of 192 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Lactobacillus Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Clinical Evaluation of Effects of an Investigational Tampon on Vaginal Microflora

NCT00913523
View directory record Official record
Conditions
Vaginal Microflora
Interventions
Experimental - Tampon with GML, Sham Control - Tampons without GML
Device
Lead sponsor
Johnson & Johnson Consumer and Personal Products Worldwide
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
482 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
2
States / cities
Scottsdale, Arizona • St. Petersburg, Florida
Source: ClinicalTrials.gov public record
Updated Aug 23, 2011 · Synced Oct 30, 2026, 3:49 PM EDT
Completed Not applicable Interventional

Engineering Gut Microbiome to Target Breast Cancer

NCT03358511
View directory record Official record
Conditions
Breast Cancer
Interventions
Probiotic
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated May 21, 2020 · Synced Oct 30, 2026, 3:49 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Food Trial to Evaluate the Kinetics of the Medical Foods SBD111 and SBD121 Persistence in Healthy Adults

NCT06614166
View directory record Official record
Conditions
Product Persistence in GI Tract, Kinetics, Rheumatoid Arthritis (RA), Bone Density
Interventions
SBD111 Probiotic Medical Food, SBD121 Probiotic Medical Food
Other
Lead sponsor
Solarea Bio, Inc
Industry
Eligibility
18 Years to 64 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Waltham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 27, 2025 · Synced Oct 30, 2026, 3:49 PM EDT
Terminated Phase 2 Interventional

Impact of Infant Formula on Resolution of Cow's Milk Allergy

NCT02719405
View directory record Official record
Conditions
Milk Allergy
Interventions
Lactobacillus GG, Extensively Hydrolyzed Casein Formula, Amino Acid Formula
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
Up to 120 Days
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
2
States / cities
Boston, Massachusetts • Woburn, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 13, 2018 · Synced Oct 30, 2026, 3:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of Lactobacillus Rhamnosus GG ATCC 53103 (LGG) in Healthy Volunteers

NCT00934453
View directory record Official record
Conditions
Healthy
Interventions
Lactobacillus rhamnosus GG ATCC 53103, Placebo
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Oct 30, 2026, 3:49 PM EDT
Completed Not applicable Interventional

A Study to Evaluate the Effect of Probiotic Supplement on Quality of Life

NCT05523180
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, Non-cystic Fibrosis Bronchiectasis
Interventions
Probiotic, Placebo
Dietary Supplement · Other
Lead sponsor
ResBiotic Nutrition, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
2
States / cities
Miami, Florida • The Villages, Florida
Source: ClinicalTrials.gov public record
Updated Jun 5, 2024 · Synced Oct 30, 2026, 3:49 PM 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 30, 2026, 3:49 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Exercise, Milk Thistle, and Lactobacillus to Influence Plasma Bilirubin

NCT04717726
View directory record Official record
Conditions
Obesity
Interventions
Milk Thistle (MT), Lactobacillus Gasseri (LAC), Exercise (EX), Control (CON)
Dietary Supplement · Behavioral
Lead sponsor
Kyle Flack
Other
Eligibility
18 Years to 50 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 28, 2023 · Synced Oct 30, 2026, 3:49 PM EDT
Completed Phase 4 Interventional

Rhinovirus Study With Lactobacillus Rhamnosus GG

NCT01229917
View directory record Official record
Conditions
Respiratory Tract Infections [C08.730]
Interventions
Fruit juice with Lactobacillus rhamnosus GG, version 1, Fruit juice with Lactobacillus rhamnosus GG, version 2, Standard fruit juice
Other
Lead sponsor
Valio Ltd
Industry
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 7, 2011 · Synced Oct 30, 2026, 3:49 PM EDT
Recruiting Phase 2 Interventional

Synbiotic Compound to Reduce Symptoms of Schizophrenia

NCT04226898
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Synbiotic Supplement, Inert Compound
Biological
Lead sponsor
Sheppard Pratt Health System
Other
Eligibility
18 Years to 65 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Batlimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Oct 30, 2026, 3:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Randomized, Double-blind, Placebo-controlled Trial Investigating the Role of a Personal Care Product on Vaginal Health

NCT05659745
View directory record Official record
Conditions
Vaginal Personal Care
Interventions
VM-02, Commercial Oral Probiotic Competitor, VM-02 Placebo
Other · Dietary Supplement
Lead sponsor
Seed Health
Industry
Eligibility
18 Years and older · Female only
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Venice, California
Source: ClinicalTrials.gov public record
Updated May 31, 2023 · Synced Oct 30, 2026, 3:49 PM EDT
Completed Early Phase 1 Interventional

Impact of Clinician-administered Vaginal Live Biotherapeutic Product

NCT07305844
View directory record Official record
Conditions
Bacterial Vaginosis
Interventions
LC106
Drug
Lead sponsor
Caroline Mitchell
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 30, 2026, 3:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Flourish Vaginal Care System to Establish Neovaginal Microbiome

NCT05372770
View directory record Official record
Conditions
Neovaginal Microbiome
Interventions
Flourish Vaginal Care system
Device
Lead sponsor
Vaginal Biome Science
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
New Hope, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 1, 2025 · Synced Oct 30, 2026, 3:49 PM EDT
Not listed Not applicable Interventional

Effects of a Multispecies Probiotic on Migraine

NCT04696458
View directory record Official record
Conditions
Migraine, Irritable Bowel Syndrome, Headache, Migraine
Interventions
Lactobacillus plantarum (CECT7484 and CECT7485)/ Pediococcus acidilactici (CECT7483), Placebo Comparator: Placebo
Dietary Supplement · Other
Lead sponsor
Scripps Health
Other
Eligibility
18 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Nov 23, 2022 · Synced Oct 30, 2026, 3:49 PM EDT
Not listed Not applicable Interventional

Assess the Effects of a Limosilactobacillus Supplement on Recurrence of UTI in Healthy Women During a 6-month Period

NCT05793814
View directory record Official record
Conditions
Uncomplicated Symptomatic Urinary Tract Infections
Interventions
Limosilactobacillus reuteri 3613, Placebo
Dietary Supplement
Lead sponsor
Church & Dwight Company, Inc.
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 31, 2023 · Synced Oct 30, 2026, 3:49 PM EDT
Terminated Phase 1 Interventional

Probiotics in the Reduction of Antibiotic Associated Diarrhea

NCT02589964
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Florajen-3, Placebo
Dietary Supplement · Other
Lead sponsor
TriHealth Inc.
Other
Eligibility
18 Years to 120 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 31, 2016 · Synced Oct 30, 2026, 3:49 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Anti-anxiety Biotics for Breast Cancer Survivors

NCT04784182
View directory record Official record
Conditions
Anxiety Generalized, Breast Cancer Female
Interventions
probiotic plus prebiotic supplement, placebo
Dietary Supplement
Lead sponsor
Auburn University
Other
Eligibility
50 Years and older · Female only
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 24, 2023 · Synced Oct 30, 2026, 3:49 PM EDT
Not listed Phase 2Phase 3 Interventional Accepts healthy volunteers

Trenev Trio®/Healthy Trinity® for Recurrent Gastrointestinal Symptoms

NCT01444859
View directory record Official record
Conditions
Recurrent Gastrointestinal Symptoms
Interventions
Trenev Trio®/Healthy Trinity®, Placebo
Dietary Supplement
Lead sponsor
Sprim Advanced Life Sciences
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
5
States / cities
Los Angeles, California • San Francisco, California • West Lawn, Pennsylvania + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 24, 2012 · Synced Oct 30, 2026, 3:49 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study to Investigate the Potential of Probiotics in Yogurt

NCT00492583
View directory record Official record
Conditions
Healthy
Interventions
Bifidobacterium lactis (BB-12), Placebo
Drug
Lead sponsor
Georgetown University
Other
Eligibility
1 Year to 3 Years
Enrollment
182 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Aug 17, 2011 · Synced Oct 30, 2026, 3:49 PM EDT
Completed Not applicable Interventional

A Trial of a Multi-Component Nutritional Supplement in Hydrogen-Dominant Small Intestinal Bacterial Overgrowth

NCT07215676
View directory record Official record
Conditions
Small Intestinal Bacterial Overgrowth Syndrome (SIBO), Small Intestinal Bacterial Overgrowth
Interventions
AV1PD1A
Dietary Supplement
Lead sponsor
National University of Natural Medicine
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Oct 30, 2026, 3:49 PM EDT
Active, not recruiting Phase 2 Interventional

Intravesical Lactobacillus for Urinary Symptoms Among People With NLUTD Who Use Indwelling Catheters

NCT04323735
View directory record Official record
Conditions
Neurogenic Bladder
Interventions
Culturelle 10 Billion CFU Capsule
Drug
Lead sponsor
Medstar Health Research Institute
Other
Eligibility
18 Years and older
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Aug 21, 2026 · Synced Oct 30, 2026, 3:49 PM EDT
Completed Not applicable Interventional

A Study of the Effect of Probiotics on Gastrointestinal Function During Pregnancy

NCT03320226
View directory record Official record
Conditions
Pregnancy Early, Nausea Gravidarum, Vomiting of Pregnancy
Interventions
Probiotic 10 (Nature's Bounty)
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older · Female only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Aug 9, 2023 · Synced Oct 30, 2026, 3:49 PM EDT
Terminated Not applicable Interventional

The Effects of Probiotic Supplementation on Extremely Low Birthweight Infants

NCT01788761
View directory record Official record
Conditions
Feeding Tolerance
Interventions
Probiotic Supplemented Group, Control Group
Dietary Supplement
Lead sponsor
Mercy Health System
Network
Eligibility
Up to 14 Days
Enrollment
133 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Rockford, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 11, 2018 · Synced Oct 30, 2026, 3:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Adolescent Probiotics in Stressed Adolescents

NCT07565883
View directory record Official record
Conditions
Cognitive Ability, General, Immune System Function, Emotions
Interventions
Probiotics, placebo
Dietary Supplement
Lead sponsor
University of Utah
Other
Eligibility
12 Years to 20 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
2
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Oct 30, 2026, 3:49 PM EDT