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ClinicalTrials.gov public records Last synced Oct 17, 2026, 2:05 PM EDT

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Showing 169–192 of 437 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Probiotic Clear all
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 17, 2026, 2:05 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Alcoholic Liver Disease and the Gut Microbiome

NCT05007470
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 6, 2025 · Synced Oct 17, 2026, 2:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Changes in Plasma Amino Acid Appearance After Adding Bacillus Coagulans GBI-30, 6086 to Milk Protein Concentrate

NCT05313178
View directory record Official record
Conditions
Protein Malabsorption
Interventions
Bacillus Coagulans GBI-30, 6086
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
50 Years to 70 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 17, 2024 · Synced Oct 17, 2026, 2:05 PM EDT
Completed Phase 1 Interventional

CBM588, Nivolumab, and Ipilimumab in Treating Patients With Stage IV or Advanced Kidney Cancer

NCT03829111
View directory record Official record
Conditions
Advanced Renal Cell Carcinoma, Clear Cell Renal Cell Carcinoma, Metastatic Renal Cell Carcinoma, Stage III Renal Cell Cancer AJCC v8, Stage IV Renal Cell Cancer AJCC v8, Unresectable Renal Cell Carcinoma
Interventions
Clostridium butyricum CBM 588 Probiotic Strain, Ipilimumab, Nivolumab
Drug · Biological
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Jul 3, 2024 · Synced Oct 17, 2026, 2:05 PM EDT
Completed Not applicable Interventional

A Single Group Study to Evaluate the Effects of a Probiotic Supplement on Vaginal Health.

NCT06506357
View directory record Official record
Conditions
Vaginal Health, Women's Health
Interventions
Good Girl Probiotics
Dietary Supplement
Lead sponsor
Love Wellness
Industry
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Jul 17, 2024 · Synced Oct 17, 2026, 2:05 PM EDT
Completed Not applicable Interventional

The Oral Microbiome in OSCC

NCT04925700
View directory record Official record
Conditions
Oral Cancer
Interventions
ProDentis Lozenge, Placebo Lozenge
Dietary Supplement · Other
Lead sponsor
University of Iowa
Other
Eligibility
21 Years to 89 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Nov 18, 2023 · Synced Oct 17, 2026, 2:05 PM EDT
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 17, 2026, 2:05 PM EDT
Terminated Phase 2 Interventional Results available

Effect of VSL#3 on Bone Mineral Density in Postmenopausal Women

NCT03165747
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 4, 2020 · Synced Oct 17, 2026, 2:05 PM EDT
Recruiting Not applicable Interventional

The Path Study: Cognitive and Inflammation Targeted Gut-brain Interventions in Alcohol; Probiotics, Alcohol, Transcutaneous Vagus Nerve Stimulation, and HIV Study

NCT05090267
View directory record Official record
Conditions
Cognition, Gut Microbiome
Interventions
Probiotic Supplement, Transcutaneous Vagal Nerve Stimulation (tVNS)
Dietary Supplement · Device
Lead sponsor
University of Florida
Other
Eligibility
35 Years to 70 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Coral Gables, Florida
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Oct 17, 2026, 2:05 PM EDT
Completed Phase 3 Interventional Results available

A Probiotic Intervention to Prevent Relapse Following Hospitalization for Mania

NCT03383874
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Dec 19, 2025 · Synced Oct 17, 2026, 2:05 PM EDT
Completed Not applicable Interventional

Acute Probiotic Supplementation and Endothelial Function

NCT04364074
View directory record Official record
Conditions
Coronary Artery Disease, Hypertension, Hyperlipidemias, Peripheral Vascular Diseases, Cerebral Arterial Diseases
Interventions
Goodbelly, Placebo
Dietary Supplement
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
21 Years to 89 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Wauwatosa, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 22, 2023 · Synced Oct 17, 2026, 2:05 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 17, 2026, 2:05 PM 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 17, 2026, 2:05 PM EDT
Terminated Phase 1Phase 2 Interventional

The Effects of Whole Food Intervention on Mucositis in Patients Treated for Thoracic Cancer

NCT02575391
View directory record Official record
Conditions
Esophagitis
Interventions
Whole Food Intervention
Dietary Supplement
Lead sponsor
Providence Health & Services
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
2
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Oct 14, 2015 · Synced Oct 17, 2026, 2:05 PM EDT
Not listed Phase 2Phase 3 Interventional Accepts healthy volunteers

Multistrain Probiotic for Functional Constipation

NCT01618617
View directory record Official record
Conditions
Functional Constipation
Interventions
High dose Multistrain probiotic, 100 billion cfu/day, Low dose Multistrain probiotic, 15 billion cfu/day
Dietary Supplement
Lead sponsor
Renew Life Formulas Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 30, 2012 · Synced Oct 17, 2026, 2:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Probiotic on Psychological and Cognitive Effects

NCT03080818
View directory record Official record
Conditions
Aging
Interventions
Probiotic - Lactobacillus Rhamnosus GG, Placebo
Dietary Supplement · Other
Lead sponsor
Kent State University
Other
Eligibility
55 Years to 75 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Kent, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 20, 2020 · Synced Oct 17, 2026, 2:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

NECTAR Study: Nectar (Honey) Effects on Comfort, Thoughts, and Regularity

NCT04187950
View directory record Official record
Conditions
Gastrointestinal Dysfunction, Physiological Stress, Cognition - Other
Interventions
Yogurt with B. lactis and added honey, Yogurt with heat-inactivated B. lactis and added cane sugar
Dietary Supplement
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
22 Years to 64 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 21, 2023 · Synced Oct 17, 2026, 2:05 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 17, 2026, 2:05 PM EDT
Completed Not applicable Interventional

A Study of the Effect of Probiotics on Gastrointestinal Function During Pregnancy

NCT03320226
View directory record Official record
Conditions
Pregnancy Early, Nausea Gravidarum, Vomiting of Pregnancy
Interventions
Probiotic 10 (Nature's Bounty)
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older · Female only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Aug 9, 2023 · Synced Oct 17, 2026, 2:05 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Oral Probiotics on the Microbiome and Lipidome in Acne Vulgaris

NCT04596748
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
Integrative Skin Science and Research
Industry
Eligibility
13 Years to 45 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Nov 24, 2020 · Synced Oct 17, 2026, 2:05 PM EDT
Completed Not applicable Interventional

Oral Probiotic Administration to Modulate the Airway Microbiome in Obese Asthmatic Subjects

NCT03157518
View directory record Official record
Conditions
Asthma
Interventions
Seeking Health Probiota Bifido
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 99 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 20, 2018 · Synced Oct 17, 2026, 2:05 PM EDT
Completed Not applicable Interventional

Probiotic Prophylaxis for Immunosuppressant Associated Diarrhea (IAD) Following Kidney Transplantation

NCT00364650
View directory record Official record
Conditions
Immunosuppressant Associated Diarrhea
Interventions
Probiotic Supplement, Placebo
Drug · Other
Lead sponsor
Swedish Medical Center
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 26, 2011 · Synced Oct 17, 2026, 2:05 PM EDT
Recruiting Phase 2 Interventional

Microbiome Metabolites and Alcohol in HIV to Reduce CVD RCT

NCT05288790
View directory record Official record
Conditions
Microtia, Dysbiosis, Alcohol Drinking, HIV Infections, Cardiovascular Diseases
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 89 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Oct 17, 2026, 2:05 PM EDT
Not listed Not applicable Interventional

Effects of a Multispecies Probiotic on Migraine

NCT04696458
View directory record Official record
Conditions
Migraine, Irritable Bowel Syndrome, Headache, Migraine
Interventions
Lactobacillus plantarum (CECT7484 and CECT7485)/ Pediococcus acidilactici (CECT7483), Placebo Comparator: Placebo
Dietary Supplement · Other
Lead sponsor
Scripps Health
Other
Eligibility
18 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Nov 23, 2022 · Synced Oct 17, 2026, 2:05 PM EDT