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ClinicalTrials.gov public records Last synced Oct 18, 2026, 5:07 PM EDT

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Showing 361–384 of 437 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Probiotic Clear all
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 18, 2026, 5:07 PM EDT
Completed Not applicable Interventional

A Study to Evaluate the Effect of Probiotic Supplement on Quality of Life

NCT05523180
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, Non-cystic Fibrosis Bronchiectasis
Interventions
Probiotic, Placebo
Dietary Supplement · Other
Lead sponsor
ResBiotic Nutrition, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
2
States / cities
Miami, Florida • The Villages, Florida
Source: ClinicalTrials.gov public record
Updated Jun 5, 2024 · Synced Oct 18, 2026, 5:07 PM 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 18, 2026, 5:07 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 18, 2026, 5:07 PM EDT
Completed Not applicable Interventional

Lactobacillus Reuteri in the Prevention of Antibiotic Associated-diarrhea and Clostridium Difficile

NCT02127814
View directory record Official record
Conditions
Antibiotic-associated Diarrhea, Clostridium Difficile
Interventions
Lactobacillus reuteri
Dietary Supplement
Lead sponsor
Case Western Reserve University
Other
Eligibility
18 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 9, 2019 · Synced Oct 18, 2026, 5:07 PM EDT
Completed Not applicable Interventional

Efficacy of Probiotic Bacteria in Subjects With IBS or Functional Diarrhea/ Bloating

NCT00618904
View directory record Official record
Conditions
Pain
Interventions
Probiotics - Lactobacillus and bifidobacterium, Placebo
Dietary Supplement
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 75 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 9, 2013 · Synced Oct 18, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Live Microbials to Boost Anti-Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) Immunity Clinical Trial

NCT04847349
View directory record Official record
Conditions
Covid19
Interventions
OL-1, standard dose, OL-1, high dose, Placebo
Dietary Supplement
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 60 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 1, 2022 · Synced Oct 18, 2026, 5:07 PM EDT
Completed Phase 2 Interventional

Lactobacillus Johnsonii Supplementation in Adults With T1D

NCT03961347
View directory record Official record
Conditions
Type 1 Diabetes (T1D)
Interventions
L. johnsonii Probiotic, Placebo Capsule
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 45 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Oct 18, 2026, 5:07 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 18, 2026, 5:07 PM EDT
Completed Phase 4 Interventional Results available

Probiotics to Promote Intestinal Health

NCT02046512
View directory record Official record
Conditions
Communicable Diseases, Infection, Anti-Infective Agents, Therapeutic Uses, Pharmacologic Actions
Interventions
Probiotic, Placebo
Dietary Supplement · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Oct 18, 2026, 5:07 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 18, 2026, 5:07 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 18, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of an Oral Probiotic Intervention With or Without a Novel ADP-1 Toothpaste

NCT05330793
View directory record Official record
Conditions
Oral Health
Interventions
Oral probiotic, Placebo
Dietary Supplement
Lead sponsor
USANA Health Sciences
Industry
Eligibility
18 Years to 65 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
South Jordan, Utah
Source: ClinicalTrials.gov public record
Updated Apr 21, 2023 · Synced Oct 18, 2026, 5:07 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Synbiotic to Attenuate Resorption of the Skeleton

NCT06389539
View directory record Official record
Conditions
Osteoporosis, Inflammation, Aging
Interventions
SBD111 medical food, Placebo
Other
Lead sponsor
Hebrew SeniorLife
Other
Eligibility
60 Years and older · Female only
Enrollment
220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Roslindale, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Oct 18, 2026, 5:07 PM EDT
Completed Phase 1Phase 2 Interventional

Beginning Assessment of Cutaneous Treatment Efficacy of Roseomonas in Atopic Dermatitis

NCT03018275
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
Roseomonas mucosa
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Years to 99 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 27, 2019 · Synced Oct 18, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Use of Probiotics to Aid in Weight Loss

NCT01445704
View directory record Official record
Conditions
Weight Loss
Interventions
Probiotics, Placebo
Dietary Supplement
Lead sponsor
Prisma Health-Upstate
Other
Eligibility
18 Years and older
Enrollment
151 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Greenville, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 9, 2014 · Synced Oct 18, 2026, 5:07 PM EDT
Completed Not applicable Interventional

Vaginal Probiotics and Pessaries and Their Impact on the Vaginal Microenvironment

NCT04118049
View directory record Official record
Conditions
Pelvic Organ Prolapse, Inflammatory Response, Dysbiosis
Interventions
BiopHreshTM vaginal probiotic supplement (Good Clean Love, Inc. Eugene, OR) and RestoreTM gel., Standard Care
Other
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years to 89 Years · Female only
Enrollment
141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 25, 2022 · Synced Oct 18, 2026, 5:07 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 18, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Immune and Recovery Modulating Impact of Probiotic Supplementation After Intense Resistance Exercise

NCT04441840
View directory record Official record
Conditions
Immune Markers, Complete Blood Count (CBC) With Platelet Differentials, Muscle Damage, Muscular Force Production, Countermovement Jump, Muscular Fatigue, Muscular Soreness
Interventions
Active Probiotic Culture, Inactive Probiotic Culture
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 5, 2022 · Synced Oct 18, 2026, 5:07 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Gut Flora Dependent Metabolism of Dietary Phosphatidylcholine and Cardiovascular Disease

NCT01519310
View directory record Official record
Conditions
Nutrition
Interventions
Antibiotic (metronidazole and ciprofloxacin)/probiotic
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 3, 2016 · Synced Oct 18, 2026, 5:07 PM EDT
Terminated Not applicable Interventional

Dose Ranging Study With the Probiotic Combination (VSL#3) in Diarrhea IBS

NCT00179582
View directory record Official record
Conditions
IBS
Interventions
VSL#3
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 27, 2019 · Synced Oct 18, 2026, 5:07 PM 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 18, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Changes in Amino Acid Absorption After Adding a Probiotic to an Acute Protein Feeding

NCT04427020
View directory record Official record
Conditions
Amino Acid Absorption
Interventions
Milk protein + GBI-30, Milk protein
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 11, 2020 · Synced Oct 18, 2026, 5:07 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Probiotics and the Gut Microbiome in Obese Hispanic Youth

NCT03115385
View directory record Official record
Conditions
Obesity, Abdominal, Adiposity
Interventions
VSL#3, Placebo
Dietary Supplement
Lead sponsor
University of Southern California
Other
Eligibility
12 Years to 18 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 14, 2017 · Synced Oct 18, 2026, 5:07 PM EDT