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ClinicalTrials.gov public records Last synced Oct 28, 2026, 9:25 PM EDT

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Showing 289–312 of 438 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: probiotic Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Prospective Tolerability Assessment of a Probiotic Dietary Supplement

NCT04044144
View directory record Official record
Conditions
Healthy Adults
Interventions
Probiotic Dietary Supplement
Dietary Supplement
Lead sponsor
Metagenics, Inc.
Industry
Eligibility
21 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Gig Harbor, Washington
Source: ClinicalTrials.gov public record
Updated Apr 6, 2022 · Synced Oct 28, 2026, 9:25 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 28, 2026, 9:25 PM EDT
Recruiting Phase 2 Interventional

Topical Probiotic Sinus Irrigations for Treating Chronic Sinusitis

NCT05427695
View directory record Official record
Conditions
Chronic Rhinosinusitis (Diagnosis)
Interventions
Lactobacillus sakei proBio65, Isotonic Saline Solution
Drug · Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Oct 28, 2026, 9:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Measuring the Influence of Kefir on Children's Stools on Antibiotics (MILK)

NCT00481507
View directory record Official record
Conditions
Respiratory Tract Infections
Interventions
Kefir, Placebo
Other
Lead sponsor
Georgetown University
Other
Eligibility
1 Year to 5 Years
Enrollment
125 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 Jul 10, 2019 · Synced Oct 28, 2026, 9:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Probiotics That Moderate pH and Antagonize Pathogens to Promote Oral Health

NCT02999230
View directory record Official record
Conditions
Dental Caries
Interventions
Caries Free 1.5% Arginine, Caries Free Placebo Sodium Fluoride, Caries Active 1.5% Arginine, Caries Active- Placebo Sodium Fluoride
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 65 Years
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Oct 1, 2024 · Synced Oct 28, 2026, 9:25 PM EDT
Withdrawn Not applicable Interventional

Probiotic Use in Patients With Prior COPD Exacerbation

NCT02185092
View directory record Official record
Conditions
COPD, Obstructive Lung Disease
Interventions
Lactobacillus GG, Sugar pill
Dietary Supplement · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 99 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated May 23, 2017 · Synced Oct 28, 2026, 9:25 PM EDT
Suspended Not applicable Interventional

Probiotics for the Prevention of Immunotherapy Induced Colitis in Patients Receiving Immunotherapy

NCT06508034
View directory record Official record
Conditions
Malignant Solid Neoplasm
Interventions
Biospecimen Collection, Live Freeze-Dried Lactic Acid Bacteria Probiotic, Questionnaire Administration
Procedure · Dietary Supplement · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Oct 28, 2026, 9:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acidophilus Pearls Fecal Recovery Study

NCT02001610
View directory record Official record
Conditions
Survival of Probiotics During GI Transit, GI Symptoms
Interventions
Acidophilus pearls, Hard shell gelatin capsules
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 75 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 8, 2017 · Synced Oct 28, 2026, 9:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Probiotic Formula and Infant Growth

NCT01476397
View directory record Official record
Conditions
Healthy
Interventions
Control infant formula, Test infant formula
Other
Lead sponsor
Société des Produits Nestlé (SPN)
Industry
Eligibility
11 Days to 17 Days
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
8
States / cities
Scottsdale, Arizona • Marietta, Georgia • Bardstown, Kentucky + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2014 · Synced Oct 28, 2026, 9:25 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 28, 2026, 9:25 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 28, 2026, 9:25 PM EDT
Not listed Phase 3 Interventional

Probiotics and Recovery From Gastrointestinal Surgery - 2

NCT04266106
View directory record Official record
Conditions
Surgical Recovery
Interventions
SuperBio probiotic, Placebo
Drug
Lead sponsor
Jan Franko, MD
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Des Moines, Iowa
Source: ClinicalTrials.gov public record
Updated Feb 13, 2020 · Synced Oct 28, 2026, 9:25 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Sleep More, Stress Less: 90-Day Trial of Neuralli Mood

NCT07717385
View directory record Official record
Conditions
Psychological Stress, Sleep Disturbance, Anxiety Symptoms, Depressive Symptoms, Occupational Burnout
Interventions
Neuralli Mood
Dietary Supplement
Lead sponsor
Efforia, Inc
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 28, 2026, 9:25 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 28, 2026, 9:25 PM EDT
Withdrawn Early Phase 1 Interventional

Novel Supplement-based Therapy for the Treatment of Small Intestinal Bacterial Overgrowth

NCT03420976
View directory record Official record
Conditions
Small Intestinal Bacterial Overgrowth
Interventions
Novel Supplement Based Therapy
Dietary Supplement
Lead sponsor
Atrium Innovations
Industry
Eligibility
19 Years to 84 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Oxford, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 12, 2021 · Synced Oct 28, 2026, 9:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Oral Probiotics and Herbal Supplementation on the Gut Microbiome and Sebum Excretion Rate in Non-Cystic Acne

NCT05919810
View directory record Official record
Conditions
Acne Vulgaris, Acneiform Eruptions, Skin Diseases, Sebaceous Gland Diseases
Interventions
Probiotic, Oral herbal powder supplement
Other · Dietary Supplement
Lead sponsor
Integrative Skin Science and Research
Industry
Eligibility
12 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 18, 2024 · Synced Oct 28, 2026, 9:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of a Probiotic Strain on Ibuprofen-induced GI Damage

NCT04447924
View directory record Official record
Conditions
Reduction of Small Intestinal Ulceration Risk
Interventions
Bif195, Placebo
Dietary Supplement · Other
Lead sponsor
Chr Hansen
Industry
Eligibility
18 Years to 40 Years
Enrollment
177 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 26, 2021 · Synced Oct 28, 2026, 9:25 PM EDT
Completed Phase 4 Interventional

Probiotics to Prevent Severe Pneumonia and Endotracheal Colonization Trial

NCT02462590
View directory record Official record
Conditions
Ventilator Associated Pneumonia, Infections, C-Difficile, Antibiotic-associated Diarrhea, Diarrhea
Interventions
L. rhamnosus GG - Probiotic, Placebo - Microcrystalline Cellulose
Drug
Lead sponsor
McMaster University
Other
Eligibility
18 Years and older
Enrollment
2,650 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
2
States / cities
Rochester, Minnesota • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 17, 2020 · Synced Oct 28, 2026, 9:25 PM EDT
Completed Not applicable Interventional Results available

Probiotic Yogurt Supplement in Reducing Diarrhea in Patients With Metastatic Kidney Cancer Being Treated With Vascular Endothelial Growth Factor-Tyrosine Kinase Inhibitor

NCT02944617
View directory record Official record
Conditions
Diarrhea, Metastatic Renal Cell Carcinoma, Stage IV Renal Cell Cancer
Interventions
Laboratory Biomarker Analysis, Micronutrient-Fortified Probiotic Yogurt, VEGF-TKI
Other · Dietary Supplement · Drug
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Feb 23, 2024 · Synced Oct 28, 2026, 9:25 PM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers

Trenev Trio/Healthy Trinity for Symptoms of Diarrhea-predominant Irritable Bowel Syndrome (IBS) and Functional Dyspepsia

NCT01268618
View directory record Official record
Conditions
IBS-D and Functional Dyspepsia
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
Sprim Advanced Life Sciences
Other
Eligibility
18 Years to 75 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
2
States / cities
Duluth, Georgia • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 21, 2011 · Synced Oct 28, 2026, 9:25 PM EDT
Completed Phase 2 Interventional Results available

Intravaginal LACTIN-V for Prevention of Recurrent Urinary Tract Infection

NCT00305227
View directory record Official record
Conditions
Urinary Tract Infection
Interventions
Lactin-V, Placebo
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 14, 2023 · Synced Oct 28, 2026, 9:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

How Does a Synbiotic Supplement Affect Iron Status During Iron Repletion in Iron Depleted Female Athletes?

NCT03793959
View directory record Official record
Conditions
Iron-deficiency
Interventions
Synbiotic Supplement, Placebo
Dietary Supplement
Lead sponsor
Marywood University
Other
Eligibility
18 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Scranton, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 4, 2019 · Synced Oct 28, 2026, 9:25 PM EDT
Recruiting Phase 2 Interventional

LGG Supplementation in Patients With AUD and ALD

NCT05178069
View directory record Official record
Conditions
Alcohol Use Disorder, Alcohol-associated Liver Disease
Interventions
: Placebo for Probiotic, Lactobacillus Rhamnosus GG
Drug · Dietary Supplement
Lead sponsor
University of Louisville
Other
Eligibility
21 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Oct 31, 2025 · Synced Oct 28, 2026, 9:25 PM EDT
Completed Phase 3 Interventional

Effect of VSL#3 on Intestinal Permeability in Pediatric Crohn's Disease

NCT00944736
View directory record Official record
Conditions
Crohn's Disease
Interventions
VSL#3, Placebo
Dietary Supplement
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
11 Years to 17 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 10, 2014 · Synced Oct 28, 2026, 9:25 PM EDT