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ClinicalTrials.gov public records Last synced Oct 29, 2026, 1:43 AM EDT

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Showing 313–336 of 438 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: probiotic Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate the Safety of Lactobacillus Rhamnosus GG ATCC 53103 (LGG) in Elderly Subjects

NCT01274598
View directory record Official record
Conditions
Healthy, Elderly
Interventions
Lactobacillus Rhamnosus GG, ATCC 53103 (LGG)
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
65 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Oct 29, 2026, 1:43 AM 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 29, 2026, 1:43 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Mechanisms of Probiotics and Antibiotic-Associated Diarrhea

NCT04414722
View directory record Official record
Conditions
Antibiotic-associated Diarrhea
Interventions
Amoxicillin-Clavulanate 875 Mg-125 Mg Oral Tablet, BB-12, Control Yogurt
Drug · Biological · Other
Lead sponsor
Georgetown University
Other
Eligibility
18 Years to 65 Years
Enrollment
118 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 25, 2025 · Synced Oct 29, 2026, 1:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Probiotics and Multi-Drug Resistant Urinary Tract Infection

NCT03644966
View directory record Official record
Conditions
Urinary Tract Infections, Recurrent UTI, Antibiotic Resistant Infection
Interventions
Bifidobacterium infantis, Placebo, Antibiotics
Dietary Supplement · Other · Drug
Lead sponsor
Ochsner Health System
Other
Eligibility
18 Years to 90 Years · Female only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Jefferson, Louisiana
Source: ClinicalTrials.gov public record
Updated Apr 12, 2023 · Synced Oct 29, 2026, 1:43 AM EDT
Terminated Not applicable Interventional

Lactobacillus in Preventing Infection in Patients Undergoing a Donor Stem Cell Transplant for Hematologic Cancer or Myelodysplastic Syndrome

NCT00946283
View directory record Official record
Conditions
Breast Cancer, Chronic Myeloproliferative Disorders, Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Neoplasms, Neuroblastoma, Ovarian Cancer, Testicular Germ Cell Tumor
Interventions
Lactobacillus rhamnosus GG
Dietary Supplement
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 120 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 3, 2017 · Synced Oct 29, 2026, 1:43 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The Effect of a Multi-strain Probiotic on Acclimatization to High Altitude

NCT06552806
View directory record Official record
Conditions
Probiotics
Interventions
SLAB51
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 65 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
2
States / cities
Bishop, California • La Jolla, California
Source: ClinicalTrials.gov public record
Updated Aug 14, 2024 · Synced Oct 29, 2026, 1:43 AM EDT
Recruiting Not applicable Interventional

Study to Investigate Efficacy of a Novel Probiotic on the Bacteriome and Mycobiome of Breast Cancer

NCT04362826
View directory record Official record
Conditions
Breast Cancer
Interventions
Novel probiotic, Placebo
Biological · Other
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Oct 29, 2026, 1:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Probiotic Chocolate Study in Multiple Sclerosis

NCT06475183
View directory record Official record
Conditions
Multiple Sclerosis, Healthy Nutrition
Interventions
Bouchard Belgian Dark Chocolate Probiotic Napolitains, containing bifidobacterium longum
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 45 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 30, 2025 · Synced Oct 29, 2026, 1:43 AM 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 29, 2026, 1:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Effects of a Dietary Supplement on Children's Health and Development Outcomes.

NCT06704178
View directory record Official record
Conditions
Height, Cognitive Function, Weight Gain
Interventions
NuBest Tall Growth Protein Powder, Placebo Powder
Dietary Supplement
Lead sponsor
NuBest
Industry
Eligibility
10 Years to 16 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Jul 24, 2025 · Synced Oct 29, 2026, 1:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Probiotic Intervention Study

NCT06030362
View directory record Official record
Conditions
Obesity, Food Addiction
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 50 Years
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 9, 2026 · Synced Oct 29, 2026, 1:43 AM EDT
Completed Phase 1 Interventional Results available

A Study of the Safety, Engraftment, and Action of NB01 in Adults With Moderate Acne

NCT03450369
View directory record Official record
Conditions
Acne Vulgaris
Interventions
NB01
Biological
Lead sponsor
Naked Biome, Inc.
Industry
Eligibility
18 Years to 40 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 3, 2020 · Synced Oct 29, 2026, 1:43 AM EDT
Completed Not applicable Interventional

Impact of Probiotic Use on Immune Cell Function in Children

NCT02687503
View directory record Official record
Conditions
Respiratory Tract Infections
Interventions
Probiotic
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
12 Months to 36 Months
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
2
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 24, 2019 · Synced Oct 29, 2026, 1:43 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Influence of a Delivery System on the Efficacy of a Probiotic Intervention

NCT01399996
View directory record Official record
Conditions
Delayed Transit Time, Irregular Bowel Function
Interventions
Yogurt smoothie without probiotic, Yogurt smoothie with probiotic added post fermentation, Yogurt smoothie with probiotic added pre-fermentation, A capsule containing the probiotic
Dietary Supplement
Lead sponsor
Penn State University
Other
Eligibility
18 Years to 40 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 21, 2023 · Synced Oct 29, 2026, 1:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Probiotic Supplement and Microbiome, Immune System and Metabolic Syndrome

NCT03201068
View directory record Official record
Conditions
Metabolic Syndrome, Microbiome, Immune Function, Inflammation
Interventions
Probiotic supplement, Placebo
Dietary Supplement
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 24, 2023 · Synced Oct 29, 2026, 1:43 AM EDT
Completed Phase 2 Interventional Results available

Probiotic Prophylaxis of Hirschprung's Disease Associated Enterocolitis (HAEC)

NCT00630838
View directory record Official record
Conditions
Hirschsprung Disease
Interventions
VSL#3, Placebo
Drug
Lead sponsor
University of Michigan
Other
Eligibility
1 Month to 12 Months
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
2
States / cities
Ann Arbor, Michigan • Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jul 19, 2016 · Synced Oct 29, 2026, 1:43 AM EDT
Recruiting Phase 1 Interventional

R-5780-01 In Combination With PD-1 Checkpoint Inhibitors (Checkpoint Protein on Immune Cells Called T Cells) in Patients With Solid Tumors

NCT06398418
View directory record Official record
Conditions
Solid Tumor, Adult, Solid Tumor, Melanoma, Basal Cell Cancer, Squamous Cell Cancer, Adenoma
Interventions
R-5780
Drug
Lead sponsor
Rise Therapeutics LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
2
States / cities
Denver, Colorado • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 18, 2026 · Synced Oct 29, 2026, 1:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Inflammatory and Immune Response After High Intensity Exercise

NCT05277727
View directory record Official record
Conditions
Inflammatory Response
Interventions
Fucoidan 500mg, Placebo
Dietary Supplement
Lead sponsor
Marinova Pty Ltd
Industry
Eligibility
18 Years to 40 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 12, 2022 · Synced Oct 29, 2026, 1:43 AM EDT
Not listed No phase listed Observational

Select Nutrient and Gene Variant Analysis in a Targeted Diet and Lifestyle Intervention Reduces Preterm Birth

NCT05436119
View directory record Official record
Conditions
Premature Birth, Pre-Eclampsia, Small for Gestational Age Infant
Interventions
GrowBaby
Dietary Supplement
Lead sponsor
GrowBaby Life Project
Other
Eligibility
Female only
Enrollment
200 participants
Timeline
2022 – 2023
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jun 28, 2022 · Synced Oct 29, 2026, 1:43 AM EDT
Not yet recruiting Phase 3 Interventional Accepts healthy volunteers

Povidone Iodine for Caries Prevention

NCT07741409
View directory record Official record
Conditions
Dental Caries
Interventions
Povidone Iodine 5% Soln,Top,Kit, Probiotics, Placebo
Drug · Dietary Supplement
Lead sponsor
Jeffrey A. Banas
Other
Eligibility
1 Year to 3 Years
Enrollment
174 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 29, 2026, 1:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Pharmacokinetic Study of a Novel Nutritional Product on Healthy Men and Women

NCT06316700
View directory record Official record
Conditions
Healthy Aging
Interventions
Nutritional supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 45 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Canfield, Ohio
Source: ClinicalTrials.gov public record
Updated May 4, 2025 · Synced Oct 29, 2026, 1:43 AM EDT
Terminated Phase 1 Interventional

Probiotic Lactobacillus GG to Eliminate VRE Colonization

NCT00756262
View directory record Official record
Conditions
Vancomycin Resistant Enterococcal Colonization
Interventions
Lactobacillus GG or Culturelle
Biological
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 5, 2024 · Synced Oct 29, 2026, 1:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Probiotic Supplementation on Immune Function in Healthy Infants

NCT01542320
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 6, 2015 · Synced Oct 29, 2026, 1:43 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Feeding Intervention for Infants With Crying

NCT01017991
View directory record Official record
Conditions
Crying
Interventions
Milk based infant formula with probiotic, Milk based infant formula
Other
Lead sponsor
Société des Produits Nestlé (SPN)
Industry
Eligibility
3 Weeks to 4 Months
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
9
States / cities
Bentonville, Arkansas • San Francisco, California • Washington D.C., District of Columbia + 6 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2017 · Synced Oct 29, 2026, 1:43 AM EDT