Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 16, 2026, 8:30 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Infant Microbiota and Probiotic Intake Study

NCT02457338
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
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
Conditions
Mental Health Wellness
Interventions
Lactobacillus reuteri, Placebo
Dietary Supplement · Other
Lead sponsor
Elizabeth Austen Lawson
Other
Eligibility
18 Years and older · Female only
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Not listed Not applicable Interventional Accepts healthy volunteers

Oral Probiotics on the Microbiome and Lipidome in Acne Vulgaris

NCT04596748
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
Conditions
Gastrointestinal Symptoms
Interventions
Prog: Purify-2
Other
Lead sponsor
Nature's Sunshine Products, Inc.
Industry
Eligibility
18 Years to 69 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Lehi, Utah
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Assessing the Gut Microbiome and Its Association With Pediatric Stress and Cognition

NCT06269614
Conditions
Autism Spectrum Disorder, Adverse Childhood Experiences, Stress Reaction
Interventions
Probiotic
Dietary Supplement
Lead sponsor
Nova Southeastern University
Other
Eligibility
4 Years to 95 Months
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Davie, Florida
Conditions
Healthy
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
65 Years to 80 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Gainesville, Florida
Completed Not applicable Interventional Accepts healthy volunteers

Detection of Probiotic Strains in Vaginal Swabs Collected From Healthy Women

NCT04719611
Conditions
Healthy
Interventions
Probiotic
Dietary Supplement
Lead sponsor
Lallemand Health Solutions
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Multiple Sclerosis, Clinically Isolated Syndrome (CIS)
Interventions
Prebiotics (Prebiotin Prebiotic Fiber Stick Pac), Probiotics (Visbiome®)
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
2
States / cities
New York, New York • Pittsburgh, Pennsylvania
Conditions
Non Small Cell Lung Cancer (NSCLC)
Interventions
Dacomitinib, Doxycycline, Probiotic, Alclometasone cream
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
236 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
79
States / cities
Duarte, California • Fullerton, California • Irvine, California + 49 more
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Mechanism of Microbiome-induced Insulin Resistance in Humans (Aim2)

NCT02127125
Conditions
Insulin Sensitivity
Interventions
Maltodextrin, Synbiotic, Sevelamer
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years to 65 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
San Antonio, Texas
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
Completed No phase listed Observational Accepts healthy volunteers

Novel Probiotic Treatment for Prevention of Recurrent UTIs in Children

NCT01696227
Conditions
Recurrent UTIs, Catheter-Related Infections
Interventions
Nissle 1917
Drug
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Columbus, Ohio
Completed Not applicable Interventional Accepts healthy volunteers Results available

Probiotics and Health-related Quality of Life in Individuals With Seasonal Allergies

NCT02349711
Conditions
Healthy
Interventions
Probiotic mixture, Placebo
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 60 Years
Enrollment
224 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Gut Microbiota, Adiposity
Interventions
Synbiotic, Placebo
Dietary Supplement · Other
Lead sponsor
Texas State University, San Marcos
Other
Eligibility
18 Years to 64 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
San Marcos, Texas
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
Completed Phase 4 Interventional Results available

Probiotics to Promote Intestinal Health

NCT02046512
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
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
Completed Not applicable Interventional Accepts healthy volunteers

Probiotics Effect on Mental Wellness

NCT05709067
Conditions
Mental Health Wellness
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
Fonterra Research Centre
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
San Diego, California
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
Completed Not applicable Interventional Accepts healthy volunteers

Use of a Probiotic Supplement to Prevent Asthma in Infants

NCT00113659
Conditions
Asthma
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
Montefiore Medical Center
Other
Eligibility
1 Day to 4 Days
Enrollment
203 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2014
U.S. locations
1
States / cities
San Francisco, California
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
Completed No phase listed Observational Results available

Dietary Supplement With and Without a Probiotic and/or Antibiotic

NCT05141903
Conditions
Healthy Adults
Interventions
Antibiotic, HMO Concentrate, Probiotic, Food Supplement
Dietary Supplement
Lead sponsor
Prolacta Bioscience
Industry
Eligibility
18 Years to 75 Years
Enrollment
92 participants
Timeline
2021 – 2022
U.S. locations
1
States / cities
Cypress, California
Completed Not applicable Interventional Accepts healthy volunteers

Growth of Infants Fed New Starter Formula

NCT01079208
Conditions
Dietary Intervention
Interventions
test starter infant formula, test starter infant formula with synbiotics, control standard formula
Other
Lead sponsor
Société des Produits Nestlé (SPN)
Industry
Eligibility
11 Days to 6 Months
Enrollment
297 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
3
States / cities
San Francisco, California • Orlando, Florida • Lincoln, Nebraska