Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 10, 2026, 12:19 AM EDT

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

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Iron Deficiency (ID), Pregnancy
Interventions
Lactiplantibacillus plantarum 299v, Placebo Capsule(s)
Dietary Supplement · Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Chicago, Illinois
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
Completed Phase 3 Interventional Accepts healthy volunteers

Yogurt Study in Children 2-4 Years Old Attending Daycare

NCT00760851
Conditions
Infections, Respiratory, Diarrhea
Interventions
probiotic strain Bb-12, no Bb-12
Other
Lead sponsor
Georgetown University
Other
Eligibility
2 Years to 4 Years
Enrollment
190 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy of Yogurt Containing BB12 in Subjects With GI Symptoms

NCT00618488
Conditions
Pain
Interventions
Probiotic BB12 - Bifidobacterium lactis, Placebo
Dietary Supplement
Lead sponsor
University of North Carolina
Other
Eligibility
18 Years to 70 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Alcoholic Liver Disease and the Gut Microbiome

NCT05007470
Conditions
Alcohol Use Disorder, Alcoholic Liver Disease, Microbiome
Interventions
VSL #3 112.5 Capsule, Placebo
Drug · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Probiotics
Interventions
Lactic acid bacteria and bifidobacteria, Placebo
Dietary Supplement · Other
Lead sponsor
Texas Christian University
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Fort Worth, Texas
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
Conditions
Mania (Neurotic)
Interventions
Probio-Tec BG-VCap-6.5, Placebo
Combination Product · Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Dallas, Texas
Conditions
Menopausal Osteoporosis
Interventions
VSL#3, Placebo
Drug · Other
Lead sponsor
Emory University
Other
Eligibility
50 Years to 65 Years · Female only
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Conditions
Urinary Tract Infections
Interventions
BioNourish, a component of Flourish HEC
Device
Lead sponsor
Vaginal Biome Science
Other
Eligibility
18 Years to 52 Years · Female only
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Nashville, Tennessee
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Probiotic Supplementation on Immune Function in Healthy Infants

NCT01542320
Conditions
Inflammation
Interventions
Lactobacillus reuteri DSM 17938, Placebo
Dietary Supplement · Other
Lead sponsor
Emory University
Other
Eligibility
6 Weeks to 32 Weeks
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Atlanta, Georgia
Conditions
Mental Health Wellness
Interventions
Lactobacillus reuteri, Placebo
Dietary Supplement · Other
Lead sponsor
Elizabeth Austen Lawson
Other
Eligibility
18 Years and older · Female only
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Low-grade Oral Dysplasia
Interventions
Probiotic oral lozenges, Standard of care for oral dysplasia
Biological · Other
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Recurrent Urinary Tract Infection
Interventions
Lactobacillus reuteri DSM 17938, trimethoprim/sulfamethoxazole
Dietary Supplement · Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
3 Months to 17 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Houston, Texas
Conditions
Exercise Induced Muscle Damage, Delayed Onset Muscle Soreness (DOMS)
Interventions
Lactobacillus casei, Placebo Capsule(s)
Dietary Supplement · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 30 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Post-Acute COVID-19 Syndrome
Interventions
Probiotic Agent, Placebo
Drug · Other
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
194 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
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
Conditions
Chronic Kidney Disease
Interventions
Kibow Biotics
Dietary Supplement
Lead sponsor
Kibow Pharma
Industry
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Brooklyn, New York
Completed Phase 2 Interventional Results available

The Probiotic Study: Using Bacteria to Calm Your Mind

NCT02711800
Conditions
Anxiety, Abdominal Pain
Interventions
Lactobacillus rhamnosus
Drug
Lead sponsor
Nancy Zucker
Other
Eligibility
9 Years to 13 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Completed Not applicable Interventional Accepts healthy volunteers

Use of a Probiotic Supplement to Prevent Asthma in Infants

NCT00113659
Conditions
Asthma
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
Montefiore Medical Center
Other
Eligibility
1 Day to 4 Days
Enrollment
203 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2014
U.S. locations
1
States / cities
San Francisco, California
Conditions
Immune Function
Interventions
Yogurt drink, Acidified lactic beverage
Dietary Supplement
Lead sponsor
Meiji Co., Ltd.
Industry
Eligibility
18 Years to 65 Years
Enrollment
118 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Recruiting Phase 1Phase 2 Interventional

Probiotics and Gut Health

NCT03418857
Conditions
Metabolic Syndrome
Interventions
Yogurt smoothie with BB-12, Yogurt smoothie
Drug
Lead sponsor
Penn State University
Other
Eligibility
55 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
University Park, Pennsylvania
Completed Early Phase 1 Interventional Results available

Probiotics for Quality of Life in Autism Spectrum Disorders

NCT02903030
Conditions
Autism Spectrum Disorders, Anxiety
Interventions
Maltose (placebo), Visbiome Extra Strength
Drug
Lead sponsor
Ohio State University
Other
Eligibility
3 Years to 12 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
Anti-biotic Resistance
Interventions
Lactobacillus rhamnosus HN001, sugar pill (placebo)
Dietary Supplement
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Madison, Wisconsin