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ClinicalTrials.gov public records Last synced Oct 19, 2026, 5:30 PM EDT

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Showing 241–264 of 437 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Probiotics Clear all
Completed Early Phase 1 Interventional Results available

Probiotics for Quality of Life in Autism Spectrum Disorders

NCT02903030
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced Oct 19, 2026, 5:30 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 19, 2026, 5:30 PM EDT
Completed Not applicable Interventional

Pilot Study Lp299v Supplementation in Chronic Heart Failure

NCT05752760
View directory record Official record
Conditions
Heart Failure, Heart Failure With Reduced Ejection Fraction, Heart Failure, Systolic, Heart Failure With Preserved Ejection Fraction, Heart Failure, Diastolic
Interventions
Lactobacillus Plantarum 299v Freeze Dried Capsule, Freeze Dried Potato Starch Capsule
Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
21 Years to 89 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy of Yogurt Containing BB12 in Subjects With GI Symptoms

NCT00618488
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 20, 2008 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Gastric Acid Suppression and Probiotic Colonization

NCT03327051
View directory record Official record
Conditions
Probiotics
Interventions
Omeprazole, VSL #3, Placebo
Drug · Dietary Supplement
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 75 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Mar 11, 2020 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Use of a Probiotic Supplement to Prevent Asthma in Infants

NCT00113659
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 11, 2024 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Phase 2 Interventional

Lactobacillus Johnsonii in Children and Adolescents With T1D

NCT03961854
View directory record Official record
Conditions
Type 1 Diabetes (T1D)
Interventions
L. johnsonii Probiotic, Placebo Capsule
Drug
Lead sponsor
University of Florida
Other
Eligibility
8 Years to 18 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 19, 2026, 5:30 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers Results available

The Efficacy of Probiotics to Reduce Antepartum Group B Streptococcus Colonization.

NCT03696953
View directory record Official record
Conditions
Group B Streptococcus Carrier in Childbirth, Gastrointestinal Symptoms
Interventions
Florajen3
Biological
Lead sponsor
Marquette University
Other
Eligibility
18 Years and older · Female only
Enrollment
109 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 21, 2024 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Early Phase 1 Interventional

Safety, Tolerability, and Pharmacodynamics of SYNB8802v1 in Subjects With History of Gastric Bypass Surgery or Short-bowel Syndrome

NCT05377112
View directory record Official record
Conditions
Enteric Hyperoxaluria
Interventions
SYNB8802v1, Placebo
Drug · Other
Lead sponsor
Synlogic
Industry
Eligibility
18 Years to 74 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Mar 17, 2023 · Synced Oct 19, 2026, 5:30 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of a 5-Week Probiotic Supplementation Intervention on Markers of Delayed Onset Muscle Soreness

NCT07219498
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Pinpoint Trial: Prebiotics IN Peanut Oral ImmunoTherapy

NCT05138757
View directory record Official record
Conditions
Peanut Allergy
Interventions
Prebiotic, Placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
4 Years to 17 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
2
States / cities
Chicago, Illinois • Hyde Park, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Oct 19, 2026, 5:30 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 19, 2026, 5:30 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Novel Probiotic Treatment for Prevention of Recurrent UTIs in Children

NCT01696227
View directory record Official record
Conditions
Recurrent UTIs, Catheter-Related Infections
Interventions
Nissle 1917
Drug
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 15, 2014 · Synced Oct 19, 2026, 5:30 PM EDT
Terminated Not applicable Interventional

Infantile Colic: Study of the Efficacy of Lactobacillus GG (ATCC 53103) Plus Chamomile in Breastfeeding Infants

NCT03477669
View directory record Official record
Conditions
Infantile Colic
Interventions
chamomile/probiotic arm, Placebo of chamomile/probiotic arm
Dietary Supplement
Lead sponsor
University of Nebraska
Other
Eligibility
3 Weeks to 16 Weeks
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Aug 25, 2023 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Phase 2 Interventional

A Pilot Trial to Determine the Efficacy of VSL#3 for Reducing Colonization by VRE

NCT00933556
View directory record Official record
Conditions
Anti-biotic Resistance
Interventions
VSL#3, sugar pill (placebo)
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 8, 2015 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Gastrointestinal Tolerance Evaluation of an Infant Formula

NCT03307122
View directory record Official record
Conditions
Healthy, Full-term Infants Who Are Formula-fed
Interventions
Routine Infant Formula 1, Routine Infant Formula 2
Other
Lead sponsor
Société des Produits Nestlé (SPN)
Industry
Eligibility
9 Days to 19 Days
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
8
States / cities
Pensacola, Florida • Louisville, Kentucky • Owensboro, Kentucky + 5 more
Source: ClinicalTrials.gov public record
Updated May 23, 2018 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Not applicable Interventional

Effects of Flourish on Recurrent Urinary Tract Infection

NCT05397782
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 7, 2024 · Synced Oct 19, 2026, 5:30 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Synbiotic Dietary Supplement and Gut Microbiota

NCT04097106
View directory record Official record
Conditions
Healthy
Interventions
Synbiotic
Dietary Supplement
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 45 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 9, 2024 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Commercially Available Synbiotic on the Gut Microbiome and Cardiometabolic Health

NCT07515443
View directory record Official record
Conditions
Hypertension, Gut Dysbiosis, Overweight , Obesity
Interventions
Synbiotic, Placebo
Dietary Supplement
Lead sponsor
Southern Utah University
Other
Eligibility
18 Years to 60 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Cedar, Utah
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

The Effects of a Novel Probiotic Supplement on Menopausal Symptoms and Bone Health

NCT04001088
View directory record Official record
Conditions
Menopause
Interventions
Probiotic, Placebo
Dietary Supplement · Other
Lead sponsor
Lallemand Health Solutions
Industry
Eligibility
40 Years to 59 Years · Female only
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
5
States / cities
Lake Worth, Florida • Port Saint Lucie, Florida • Atlanta, Georgia + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2023 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Not applicable Interventional Results available

Probiotics and Antibiotic Associated Diarrhea in Pediatric Complicated Appendicitis

NCT04529980
View directory record Official record
Conditions
Appendicitis, Appendicitis; Perforation
Interventions
Lactobacillus rhamnosus GG (LGG) Probiotic, Placebo
Dietary Supplement
Lead sponsor
Children's Health
Other
Eligibility
4 Years to 18 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Aug 13, 2024 · Synced Oct 19, 2026, 5:30 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Beverage for Immune Support

NCT05566314
View directory record Official record
Conditions
Immune
Interventions
Amunizer, Placebo
Dietary Supplement · Other
Lead sponsor
Nutraceuticals Research Institute
Other
Eligibility
20 Years to 65 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Franklin, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 4, 2022 · Synced Oct 19, 2026, 5:30 PM EDT
Completed Phase 2 Interventional Results available

Impact of Probiotics on Urinary Symptoms in Spinal Cord Injury SCI and SB

NCT02748317
View directory record Official record
Conditions
Lower Urinary Tract Symptoms
Interventions
Lactobacillus rhamnosus GG
Drug
Lead sponsor
Medstar Health Research Institute
Other
Eligibility
18 Years and older
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
2
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 12, 2020 · Synced Oct 19, 2026, 5:30 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Effects of Triphala and VSL#3 Probiotic Supplementation on Stool Microbiome Profiles and Inflammation

NCT03907501
View directory record Official record
Conditions
Human Microbiome
Interventions
Synbiotic, Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
65 Years and older
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 6, 2023 · Synced Oct 19, 2026, 5:30 PM EDT