Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 21, 2026, 6:35 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Crohn Disease, Ulcerative Colitis
Interventions
Prebiotic
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 85 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Anatomic Stage 0 Breast Cancer AJCC v8, Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Hormone Receptor-Positive Breast Carcinoma
Interventions
Biospecimen Collection, Bone Mineral Density Test, Questionnaire Administration, WBF-038
Procedure · Other · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Jacksonville, Florida
Conditions
Microbial Colonization
Interventions
Prebiotics, Placebos
Dietary Supplement
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
2 Years to 18 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of S. Boulardii and Amoxicillin/Clavulanate on Gut Microbiota

NCT01473368
Conditions
Healthy Volunteers
Interventions
Saccharomyces boulardii, Amoxicillin Clavulanate
Dietary Supplement · Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Gastrointestinal Microbiome, Nutrition, Healthy, Exercise
Interventions
AG1 - Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Hempstead, New York
Conditions
Healthy Aging
Interventions
Nutritional supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 45 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Canfield, Ohio
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Nutritional Supplement on Nutrient Status and Quality of Life

NCT06332898
Conditions
Nutrition, Healthy, Gastrointestinal Microbiome, Healthy Aging
Interventions
AG1 - Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 60 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Santa Monica, California
Conditions
Weight Gain Trajectory, Metabolic Syndrome
Interventions
Prebiotin
Dietary Supplement
Lead sponsor
Baylor University
Other
Eligibility
Not listed
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Waco, Texas
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Anti-anxiety Biotics for Breast Cancer Survivors

NCT04784182
Conditions
Anxiety Generalized, Breast Cancer Female
Interventions
probiotic plus prebiotic supplement, placebo
Dietary Supplement
Lead sponsor
Auburn University
Other
Eligibility
50 Years and older · Female only
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Auburn, Alabama
Conditions
Diverticulitis
Interventions
High-dose prebiotic, Low-dose prebiotic, Placebo
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Gastrointestinal Symptoms
Interventions
GlutenShield, Placebo
Dietary Supplement · Other
Lead sponsor
East Tennessee State University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Johnson City, Tennessee
Conditions
Diabetes Mellitus, Type 2
Interventions
Supergut, Placebo, Dietary guidelines
Dietary Supplement · Other
Lead sponsor
Uplifting Results Labs Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Santa Monica, California
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Prebiotics on Cognition and Health

NCT04551937
Conditions
Physiological Stress, Cognitive Change, Gastrointestinal Health
Interventions
Lactose Free 1% Milk, Lactose Free 1% Milk + 10 g prebiotic
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
25 Years to 45 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Urbana, Illinois
Completed Not applicable Interventional Accepts healthy volunteers

The EFFECT Study: Probiotic and HMO Supplementation in Infants

NCT03994315
Conditions
Infant Gut Microbiome
Interventions
B. infantis EVC001, Lacto-N-tetraose (LNT)
Other
Lead sponsor
Evolve BioSystems, Inc.
Industry
Eligibility
Up to 60 Days
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Charleston, South Carolina
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
Completed Not applicable Interventional Accepts healthy volunteers

The Evaluation of Cow Milk-Based Formulas

NCT00518414
Conditions
Term Infants
Interventions
Marketed infant formula with DHA and ARA, Milk-based infant formula with DHA and ARA, Milk-based formula with DHA, ARA, prebiotics
Other
Lead sponsor
Mead Johnson Nutrition
Industry
Eligibility
10 Days to 18 Days
Enrollment
136 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
9
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Tamarac, Florida + 5 more
Completed Not applicable Interventional Accepts healthy volunteers

Evaluating the Impact of Synbiotic Supplementation on Infants and Toddlers

NCT06746285
Conditions
Gastrointestinal Tolerance of Probiotics in Infants
Interventions
Synbiotic Supplement, Lactose (inactive placebo)
Dietary Supplement
Lead sponsor
Persephone Biosciences
Industry
Eligibility
2 Months to 24 Months
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
San Diego, California
Conditions
Behavioral Measures of Tolerance
Interventions
Previously marketed cow's mlik-based infant formula, Marketed cow's milk-based infant formula with prebiotics
Other
Lead sponsor
Mead Johnson Nutrition
Industry
Eligibility
14 Days to 35 Days
Enrollment
161 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
7
States / cities
Fayetteville, Arkansas • Norwich, Connecticut • Evansville, Indiana + 4 more
Conditions
Older Adults, Bioelectrical Impedance, Appetite Hormones, Metabolic Health, Body Composition Measurement, Cognitive Health
Interventions
Synbiotic supplement
Dietary Supplement
Lead sponsor
Texas Tech University
Other
Eligibility
65 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Lubbock, Texas
Completed Not applicable Interventional Accepts healthy volunteers

Behavior of Infants Fed Formula Supplemented With Prebiotics

NCT02757924
Conditions
Gastrointestinal Tolerance
Interventions
Infant formula supplemented with prebiotics
Other
Lead sponsor
Abbott Nutrition
Industry
Eligibility
7 Days to 42 Days
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
11
States / cities
Dothan, Alabama • Pensacola, Florida • St. Petersburg, Florida + 8 more
Completed Not applicable Interventional Accepts healthy volunteers

The RAMP Study - Rejuvenation of the Aging Microbiota With Prebiotics

NCT03690999
Conditions
Microbiome, Immune Function, Inflammation
Interventions
Placebo, Prebiotic supplement
Dietary Supplement
Lead sponsor
Stanford University
Other
Eligibility
60 Years and older
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Stanford, California
Conditions
Rheumatoid Arthritis, Overweight
Interventions
Whey Protein&Prebiotic Supplement, Dietary Counseling, Dietary recommendations
Dietary Supplement · Behavioral
Lead sponsor
Veena Ranganath, MD, MS
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Gastrointestinal Microbiome, Nutrition, Healthy
Interventions
AG1 - Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Santa Monica, California
Conditions
Autism
Interventions
Synbiotic, Prebiotic
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
2 Years to 11 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Sacramento, California