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

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Showing 121–144 of 437 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Probiotics Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

Effect of a Dietary Supplement Versus Placebo on Serum PFAS Levels in Male Firefighters

NCT07846371
View directory record Official record
Conditions
Environmental Exposure, PFAS Exposure
Interventions
Streptococcus salivarius 46-SL1, Placebo
Dietary Supplement
Lead sponsor
Cambiotics ApS
Industry
Eligibility
18 Years and older · Male only
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 19, 2026, 10:10 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Investigating the Effectiveness of 2 Different Doses of BIOHM FX Probiotic Blend in Improving Digestive Symptoms

NCT06782945
View directory record Official record
Conditions
Moderate Gastrointestinal Discomfort
Interventions
BIOHM FX Probiotic Blend
Dietary Supplement
Lead sponsor
Biohm Technologies
Industry
Eligibility
18 Years to 75 Years
Enrollment
141 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 20, 2025 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigation of the Ability of a Supplement to Increase Good Bacteria in the Human Intestine and Blood Sugar Levels

NCT01944904
View directory record Official record
Conditions
Pre-diabetic
Interventions
Sugar Pill, XOS 2.8
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
20 Years to 70 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 1, 2017 · Synced Oct 19, 2026, 10:10 AM EDT
Recruiting Early Phase 1 Interventional

Effects of a Probiotic Intervention on the Gut and Vaginal Microbiome in Patients With Advanced or Recurrent Ovarian Cancer Undergoing Treatment With Platinum Chemotherapy

NCT07144826
View directory record Official record
Conditions
Advanced Ovarian Carcinoma, Recurrent Ovarian Carcinoma, Stage II Ovarian Cancer AJCC v8, Stage III Ovarian Cancer AJCC v8, Stage IV Ovarian Cancer AJCC v8
Interventions
Biospecimen Collection, Placebo Administration, Probiotic, Questionnaire Administration
Procedure · Drug · Dietary Supplement + 1 more
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
161 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Oct 19, 2026, 10:10 AM EDT
Active, not recruiting Phase 1 Interventional

CBM588 in Improving Clinical Outcomes in Patients Who Have Undergone Donor Hematopoietic Stem Cell Transplant

NCT03922035
View directory record Official record
Conditions
Hematopoietic and Lymphoid Cell Neoplasm
Interventions
Best Practice, Clostridium butyricum CBM 588 Probiotic Strain
Other · Drug
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Lactobacillus Plantarum KABP-51 Probiotic on Body Composition, Microbiome and Mood in Healthy Overweight Adults

NCT06808061
View directory record Official record
Conditions
Weight Loss, Mood
Interventions
Lactobacillus plantarum, Placebo
Dietary Supplement
Lead sponsor
3 Waves Wellness
Industry
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Plymouth, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 5, 2025 · Synced Oct 19, 2026, 10:10 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Gallotannins on the Gut Microbiome and How it Affects Inflammatory Markers Among Obese Individuals.

NCT07505212
View directory record Official record
Conditions
Obesity (Disorder)
Interventions
Gallotannin-rich mango, Lactiplantibacillus pentosus (probiotic), No Treatment Added
Dietary Supplement · Other
Lead sponsor
Prairie View A&M University
Other
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Prairie View, Texas
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acute Immune Modulation by Probiotic Strain

NCT06754228
View directory record Official record
Conditions
Immune Surveillance
Interventions
Probiotic Agent
Dietary Supplement
Lead sponsor
Natural Immune Systems Inc
Other
Eligibility
18 Years to 75 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Klamath Falls, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects on Growth and Tolerance of an Infant Formula Fed to Term Infants

NCT01897922
View directory record Official record
Conditions
Growth of Term Infants
Interventions
An investigational infant formula containing a probiotic source, Control: Marketed routine infant formula
Other
Lead sponsor
Mead Johnson Nutrition
Industry
Eligibility
12 Days to 16 Days
Enrollment
348 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
22
States / cities
Birmingham, Alabama • Dothan, Alabama • Pinson, Alabama + 18 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2015 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Phase 2 Interventional

Study to Determine the Effectiveness of the Probiotic E. Coli Strain M17 in Treating Irritable Bowel Syndrome (IBS)

NCT00194922
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS)
Interventions
E. Coli Strain M17 Probiotic
Dietary Supplement
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 80 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 4, 2008 · Synced Oct 19, 2026, 10:10 AM EDT
Recruiting Phase 1Phase 2 Interventional

Probiotics and Gut Health

NCT03418857
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Dec 14, 2021 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Phase 1Phase 2 Interventional

Does Weight Loss Surgery and Probiotic Supplementation Lead to a "Lean" Gut Microbiota?

NCT01870544
View directory record Official record
Conditions
Obesity
Interventions
Lactobacillus Rhamnosus GG, Placebo
Dietary Supplement
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 10, 2016 · Synced Oct 19, 2026, 10:10 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Milk Oriented Microbiota

NCT03222804
View directory record Official record
Conditions
Microbial Colonization
Interventions
Bifidobacterium
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
21 Years to 45 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 11, 2024 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assess the Effects of a 30 Day-wellness Program on Digestive Health, Weight and Overall Well-being

NCT06387251
View directory record Official record
Conditions
Digestive Health
Interventions
30 day wellness program
Other
Lead sponsor
Peryam & Kroll Research Corporation
Other
Eligibility
20 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Chattanooga, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 29, 2024 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Novel Nutritional Product on Nutrient Status and Digestive Health

NCT06181214
View directory record Official record
Conditions
Gastrointestinal Microbiome, Nutrition, Healthy, Healthy Aging
Interventions
AG1 - Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Canfield, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 22, 2024 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nutrition Interventions to Support the Immune System in Response to Stress

NCT02053506
View directory record Official record
Conditions
Mitigation of Immune Function Decrements in Response to Stress
Interventions
Immune-enhancing nutritional beverage, Probiotics (BB-12), Placebo (for nutritional beverage and probiotic)
Dietary Supplement
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 45 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 2, 2017 · Synced Oct 19, 2026, 10:10 AM EDT
Terminated Phase 4 Interventional Results available

Study of Probiotic GanedenBC30 for Irritable Bowel Syndrome and Major Depressive Disorder

NCT01337609
View directory record Official record
Conditions
Major Depressive Disorder, Irritable Bowel Syndrome
Interventions
Ganeden BC30, Placebo (sugar pill), Ganeden BC30, Placebo (sugar pill)
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
2
States / cities
Burlington, Massachusetts • Westborough, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 9, 2013 · Synced Oct 19, 2026, 10:10 AM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

L. Acidophilus (Strain TW01) on Gut Health, Body Composition, and Inflammation

NCT06912100
View directory record Official record
Conditions
Overweight (BMI > 25), Obese, Otherwise Healthy Volunteers
Interventions
Placebo, Probiotic
Dietary Supplement
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Oct 19, 2026, 10:10 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Infant Microbiota and Probiotic Intake Study

NCT02457338
View directory record Official record
Conditions
Healthy
Interventions
Bifidobacterium
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
21 Years to 45 Years · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2027
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 5, 2025 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Study of Probiotics in Pre-diabetic Adolescents

NCT03109587
View directory record Official record
Conditions
Obesity, Childhood
Interventions
Vivomixx, Placebo
Dietary Supplement
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
13 Years to 19 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 21, 2020 · Synced Oct 19, 2026, 10:10 AM EDT
Not yet recruiting Phase 4 Interventional

Impact of Probiotics on Gut Microbiome During Antibiotic Prophylaxis in Elective Orthopedic Surgery

NCT06791993
View directory record Official record
Conditions
Dysbiosis, Gut -microbiota, Microbiome Analysis, Probiotic, Antibiotic Prophylaxis
Interventions
Placebo Capsule, Probiotic with Human Milk Oligosaccharides (HMO)
Drug · Dietary Supplement
Lead sponsor
Acibadem Maslak Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 24, 2025 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Probiotic Water on Oral Health in Adults

NCT04473404
View directory record Official record
Conditions
Oral Bacteria, Halitosis
Interventions
Streptococcus salivarius DB-B5 - 2 billion CFU/day, Streptococcus salivarius DB-B5 - 10 billion CFU/day, Placebo
Dietary Supplement · Other
Lead sponsor
Dose Biosystems Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Fort Wayne, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 4, 2020 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Not applicable Interventional

Engineering Gut Microbiome to Target Breast Cancer

NCT03358511
View directory record Official record
Conditions
Breast Cancer
Interventions
Probiotic
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated May 21, 2020 · Synced Oct 19, 2026, 10:10 AM EDT
Completed Not applicable Interventional

Probiotic in Patients With Bile Acid Malabsorption/Diarrhea

NCT06609148
View directory record Official record
Conditions
Bile Acid Malabsorption, Bile Acid Diarrhea
Interventions
De Simone formulation probiotic, Placebo
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 19, 2026, 10:10 AM EDT