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ClinicalTrials.gov public records Last synced Oct 19, 2026, 10:49 PM EDT

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Showing 1–24 of 203 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Probiotic dietary supplement Clear all
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 19, 2026, 10:49 PM EDT
Completed Phase 1 Interventional

Probiotic Ingestion and Isoagglutinin Titers

NCT00891787
View directory record Official record
Conditions
Isoagglutinin-Mediated Hemolysis, Probiotic Toxicity
Interventions
Probiotic Supplement
Dietary Supplement
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 70 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 6, 2017 · Synced Oct 19, 2026, 10:49 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Probiotics for Prevention of Antibiotic Associated Diarrhea and Clostridium Difficile Associated Disease

NCT02076438
View directory record Official record
Conditions
Diarrhea
Interventions
Probiotics
Dietary Supplement
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 89 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 23, 2016 · Synced Oct 19, 2026, 10:49 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Assessing the Gut Microbiome and Its Association With Pediatric Stress and Cognition

NCT06269614
View directory record Official record
Conditions
Autism Spectrum Disorder, Adverse Childhood Experiences, Stress Reaction
Interventions
Probiotic
Dietary Supplement
Lead sponsor
Nova Southeastern University
Other
Eligibility
4 Years to 95 Months
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Davie, Florida
Source: ClinicalTrials.gov public record
Updated Feb 25, 2026 · Synced Oct 19, 2026, 10:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Growth of Infants Fed New Starter Formula

NCT01079208
View directory record Official record
Conditions
Dietary Intervention
Interventions
test starter infant formula, test starter infant formula with synbiotics, control standard formula
Other
Lead sponsor
Société des Produits Nestlé (SPN)
Industry
Eligibility
11 Days to 6 Months
Enrollment
297 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
3
States / cities
San Francisco, California • Orlando, Florida • Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Dec 3, 2014 · Synced Oct 19, 2026, 10:49 PM EDT
Completed Phase 2 Interventional

Probiotics for Clostridium Difficile Infection in Older Adults

NCT01680874
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 3, 2015 · Synced Oct 19, 2026, 10:49 PM EDT
Completed Not applicable Interventional

The Effects of an Orally-Administered Probiotic on Vaginal Symptoms

NCT07829861
View directory record Official record
Conditions
Vaginal Odor
Interventions
Orally-administered probiotic, Placebo
Dietary Supplement
Lead sponsor
Bonafide Health
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Harrison, New York
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 19, 2026, 10:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Enhancing Efficacy of Mango Polyphenols in Lean and Obese

NCT04970589
View directory record Official record
Conditions
Obesity
Interventions
Mango, Probiotics, Placebo
Other · Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Jul 21, 2021 · Synced Oct 19, 2026, 10:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of an Oral Probiotic Intervention With or Without a Novel ADP-1 Toothpaste

NCT05330793
View directory record Official record
Conditions
Oral Health
Interventions
Oral probiotic, Placebo
Dietary Supplement
Lead sponsor
USANA Health Sciences
Industry
Eligibility
18 Years to 65 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
South Jordan, Utah
Source: ClinicalTrials.gov public record
Updated Apr 21, 2023 · Synced Oct 19, 2026, 10:49 PM EDT
Enrolling by invitation Phase 4 Interventional

Probiotics in the Prevention of Recurrent Prosthetic Joint Infection of the Hip and Knee

NCT06636669
View directory record Official record
Conditions
Prosthetic-joint Infection, Dysbiosis
Interventions
Probiotic, Standard of care
Drug · Other
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years to 90 Years
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Boston, Massachusetts • New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Oct 19, 2026, 10:49 PM EDT
Completed Phase 2 Interventional Results available

Asacol Acute Diverticulitis(DIVA)Study

NCT00554099
View directory record Official record
Conditions
Diverticulitis
Interventions
Mesalamine, Probiotic, Placebo, Dietary Advice, Antibiotic for Diverticulitis
Drug · Other
Lead sponsor
Warner Chilcott
Industry
Eligibility
35 Years to 85 Years
Enrollment
117 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
36
States / cities
Tucson, Arizona • Los Angeles, California • Merced, California + 33 more
Source: ClinicalTrials.gov public record
Updated Apr 22, 2013 · Synced Oct 19, 2026, 10:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Probiotics on Health-related Quality of Life in College Students With Upper Respiratory Infections

NCT01657643
View directory record Official record
Conditions
Upper Respiratory Infection
Interventions
Probiotics, placebo
Dietary Supplement
Lead sponsor
University of Medicine and Dentistry of New Jersey
Other
Eligibility
18 Years to 25 Years
Enrollment
231 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Framingham, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 28, 2015 · Synced Oct 19, 2026, 10:49 PM EDT
Recruiting Phase 2 Interventional

Microbiome Metabolites and Alcohol in HIV to Reduce CVD RCT

NCT05288790
View directory record Official record
Conditions
Microtia, Dysbiosis, Alcohol Drinking, HIV Infections, Cardiovascular Diseases
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 89 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Oct 19, 2026, 10:49 PM EDT
Completed No phase listed Observational

Observational Study of Kibow Biotics in Chronic Kidney Failure Patients

NCT01450657
View directory record Official record
Conditions
Chronic Kidney Failure
Interventions
Kibow Biotics/Renadyl
Dietary Supplement
Lead sponsor
Kibow Pharma
Industry
Eligibility
18 Years to 75 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 18, 2017 · Synced Oct 19, 2026, 10:49 PM EDT
Not yet recruiting Not applicable Interventional

Impact of a Human Origin Heat Inactivated Probiotic-Lactobacillus Paracasei D3.5 (LpD3.5) as Dietary Supplement on Gut Mucin and Intestinal Permeability in Adults With IBD

NCT07017959
View directory record Official record
Conditions
Inflammatory Bowel Diseases
Interventions
LpD3.5 supplementation., Placebo
Dietary Supplement
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jun 12, 2025 · Synced Oct 19, 2026, 10:49 PM EDT
Completed Phase 4 Interventional Results available

Probiotics to Promote Intestinal Health

NCT02046512
View directory record Official record
Conditions
Communicable Diseases, Infection, Anti-Infective Agents, Therapeutic Uses, Pharmacologic Actions
Interventions
Probiotic, Placebo
Dietary Supplement · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Oct 19, 2026, 10:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Randomized Placebo Controlled Pilot Study of Probiotic Supplementation in At-risk Pregnant Women

NCT03646487
View directory record Official record
Conditions
Iron-deficiency, Pregnancy, High Risk, Stress, Psychological
Interventions
Probiotic LP299v 10x10 colony forming units in capsule form, Placebo in capsule form
Dietary Supplement · Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 7, 2023 · Synced Oct 19, 2026, 10:49 PM EDT
Completed Not applicable Interventional

Vaginal Probiotics and Pessaries and Their Impact on the Vaginal Microenvironment

NCT04118049
View directory record Official record
Conditions
Pelvic Organ Prolapse, Inflammatory Response, Dysbiosis
Interventions
BiopHreshTM vaginal probiotic supplement (Good Clean Love, Inc. Eugene, OR) and RestoreTM gel., Standard Care
Other
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years to 89 Years · Female only
Enrollment
141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 25, 2022 · Synced Oct 19, 2026, 10:49 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 19, 2026, 10:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Probiotics (L. Gasseri, B. Bifidum, B. Longum) on Immune and Intestinal Health in Healthy Older Adults

NCT01662206
View directory record Official record
Conditions
Healthy
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
65 Years to 80 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 17, 2013 · Synced Oct 19, 2026, 10:49 PM 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 19, 2026, 10:49 PM EDT
Completed Phase 2 Interventional

Probiotics in the Treatment of Iron Deficiency in Children With Restless Leg Syndrome

NCT01617044
View directory record Official record
Conditions
Iron Deficiency, Restless Leg Syndrome
Interventions
Probiotics, Placebo
Dietary Supplement
Lead sponsor
Children's Hospitals and Clinics of Minnesota
Other
Eligibility
5 Years to 18 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 20, 2016 · Synced Oct 19, 2026, 10:49 PM EDT
Completed Not applicable Interventional Results available

Effect of Milk Oligosaccharides and Bifidobacteria on the Intestinal Microflora of Children With Autism

NCT02086110
View directory record Official record
Conditions
Autism
Interventions
Synbiotic, Prebiotic
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
2 Years to 11 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Aug 1, 2019 · Synced Oct 19, 2026, 10:49 PM EDT
Completed Not applicable Interventional

The Effect of Methylated Vitamin B Complex on Depression

NCT01672372
View directory record Official record
Conditions
Depression
Interventions
Max Stress B, Placebo Max Stress B
Dietary Supplement
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 6, 2014 · Synced Oct 19, 2026, 10:49 PM EDT