Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 5, 2026, 3:35 PM EDT

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Showing 25–40 of 40 matching trials from the live ClinicalTrials.gov search.
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Probiotics for Anxiety Study

NCT06466603
Conditions
Anxiety
Interventions
GABA Probiotic Dose 1, GABA Probiotic Dose 2, Placebo Group
Dietary Supplement
Lead sponsor
Verb Biotics LLC
Industry
Eligibility
18 Years and older
Enrollment
122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Diarrhea, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
Lactobacillus plantarum strain 299v, Lactobacillus acidophilus probiotic, placebo, laboratory biomarker analysis, questionnaire administration, quality-of-life assessment, Bifidobacterium lactis probiotic supplement
Dietary Supplement · Other · Procedure
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
1
States / cities
Stanford, California
Conditions
Type 1 Diabetes, type1diabetes, Type 1 Diabetes Mellitus
Interventions
Lactiplantibacillus plantarum, Placebo
Dietary Supplement · Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
3 Years to 45 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Conditions
Healthy Adults
Interventions
RSB11-HI Heat-Inactivated Postbiotic, Placebo
Dietary Supplement · Other
Lead sponsor
Able Biolabs, LLC
Other
Eligibility
18 Years to 55 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Dallas, Texas
Recruiting Not applicable Interventional Accepts healthy volunteers

Synbiotic to Attenuate Resorption of the Skeleton

NCT06389539
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
Completed Not applicable Interventional Accepts healthy volunteers

Probiotic Administration on Mood

NCT05343533
Conditions
Depression, Sleep, Stress, Anxiety, Mood Disorders
Interventions
Probiotic
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 50 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Saint Charles, Missouri
Completed Not applicable Interventional Accepts healthy volunteers

Modulation of Type 1 Diabetes Susceptibility Through the Use of Probiotics

NCT03423589
Conditions
Type1diabetes, Type1 Diabetes Mellitus
Interventions
VSL#3
Dietary Supplement
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
5 Years to 17 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Conditions
Hematopoietic Organs; Disorder
Interventions
Lactobacillus plantarum strains 299 and 299v
Drug
Lead sponsor
Columbia University
Other
Eligibility
2 Years to 17 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
3
States / cities
Jacksonville, Florida • St. Petersburg, Florida • New York, New York
Conditions
Iron Deficiency, Restless Leg Syndrome
Interventions
Probiotics, Placebo
Dietary Supplement
Lead sponsor
Children's Hospitals and Clinics of Minnesota
Other
Eligibility
5 Years to 18 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Saint Paul, Minnesota
Terminated Not applicable Interventional Accepts healthy volunteers

Probiotics and the Gut Microbiome in Obese Hispanic Youth

NCT03115385
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
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Vascular Aging and Lp299v Study in Healthy Adults

NCT05296395
Conditions
Vascular Aging
Interventions
Lactobacillus Plantarum 299v in fermented oat drink, Heat-Killed Placebo control fermented drink
Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
50 Years to 99 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Completed Not applicable Interventional Accepts healthy volunteers

Safety and Efficacy of a Probiotic Supplement

NCT05425329
Conditions
Gastrointestinal Discomfort
Interventions
I3.1, Placebo treatment
Dietary Supplement
Lead sponsor
University of Memphis
Other
Eligibility
20 Years to 50 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Memphis, Tennessee
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
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
Conditions
Diabetic Macular Edema
Interventions
Lactobacillus plantarum 299v
Drug
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Not applicable Interventional Accepts healthy volunteers

Probiotics, Immunity, Stress, and QofL

NCT05063305
Conditions
Stress, Quality of Life
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Loma Linda, California