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Showing 1–24 of 37 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Placebo Inulin Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Measuring Effects of Prebiotics on Human Behavior and Cognition

NCT04055246
View directory record Official record
Conditions
Prebiotics and Human Behavior and Cognition
Interventions
Inulin, Placebo (maltodextrin)
Dietary Supplement
Lead sponsor
Duke University
Other
Eligibility
18 Years to 35 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 2, 2022 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of a Plasmid HIV Vaccine in HIV Uninfected Adults

NCT00249106
View directory record Official record
Conditions
HIV Infection
Interventions
ADVAX
Biological
Lead sponsor
International AIDS Vaccine Initiative
Network
Eligibility
18 Years to 60 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
2
States / cities
New York, New York • Rochester, New York
Source: ClinicalTrials.gov public record
Updated Feb 10, 2013 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Proprietary Dietary Supplement on Fecal Volatile Organic Compounds

NCT02871596
View directory record Official record
Conditions
Healthy
Interventions
Placebo, Flavonoids, Flavonoids+Prebiotics
Other · Dietary Supplement
Lead sponsor
Pharmanex
Industry
Eligibility
18 Years to 70 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Logan, Utah
Source: ClinicalTrials.gov public record
Updated Feb 22, 2017 · Synced Sep 6, 2026, 2:34 PM EDT
Recruiting Phase 2 Interventional

A Clinical Trial of Soluble Fiber for Asthma

NCT06372249
View directory record Official record
Conditions
Asthma in Children
Interventions
Inulin
Drug
Lead sponsor
Phoenix Children's Hospital
Other
Eligibility
6 Years to 17 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Synbiotic on the Gut Microbiota and Adiposity-related Markers in Healthy Overweight Subjects

NCT02151825
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 29, 2014 · Synced Sep 6, 2026, 2:34 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Symbiotic Use in Post-Bariatric Surgery Patients

NCT06252558
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Symbiotic, Placebo
Dietary Supplement
Lead sponsor
University of North Florida
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 8, 2024 · Synced Sep 6, 2026, 2:34 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Native Chicory Inulin on Change and Persistence of Gut Microbiota

NCT06528041
View directory record Official record
Conditions
Healthy
Interventions
Inulin, Maltodextrin
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 45 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Phase 4 Interventional Results available

Vitamin D and Prebiotics for Intestinal Health in Cystic Fibrosis

NCT04118010
View directory record Official record
Conditions
Cystic Fibrosis, Dysbiosis
Interventions
Vitamin D3, Placebo vitamin D3, Inulin, Placebo Inulin
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 6, 2024 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluating the Impact of Different Sugar Replacer Combinations on Gastrointestinal Tolerance

NCT05794100
View directory record Official record
Conditions
Tolerance, Healthy Population
Interventions
Acute intake of one of the products (active comparator 1 to 9) or Placebo comparator
Other
Lead sponsor
Mondelēz International, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 2, 2023 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Phase 2 Interventional Results available

Prebiotics and Metformin Improve Gut and Hormones in Type 2 Diabetes in Youth (MIGHTY-fiber)

NCT04209075
View directory record Official record
Conditions
Diabetes
Interventions
Biomebliss, Metformin, Placebo
Dietary Supplement · Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
10 Years to 25 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 29, 2022 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Phase 2 Interventional

Inositol Supplementation to Treat PCOS (INSUPP-PCOS)

NCT03864068
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Anovulation, Hyperandrogenism, Insulin Resistance, Glucose Intolerance, Metabolic Complication
Interventions
Placebo, Inositol
Other · Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
2
States / cities
Hershey, Pennsylvania • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Not applicable Interventional

A Study to Evaluate the Effects of a Prebiotic and Probiotic Supplement to Provide Relief From Symptoms Associated With Bacterial Vaginosis and Yeast Infections.

NCT06665126
View directory record Official record
Conditions
Bacterial Vaginosis, Yeast Infection
Interventions
Prebiotic + Probiotic Supplement, Active Placebo Supplement, Excipient Placebo Supplement
Dietary Supplement
Lead sponsor
Happy V
Industry
Eligibility
25 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 6, 2026, 2:34 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 6, 2026 · Synced Sep 6, 2026, 2:34 PM EDT
Not yet recruiting Phase 2 Interventional

Inulin Supplementation for Reducing Inflammation and Knee Pain in Older Adults With Osteoarthritis

NCT07189585
View directory record Official record
Conditions
Knee Osteoarthritis
Interventions
inulin, Maltodextrin (Placebo)
Drug
Lead sponsor
Yale University
Other
Eligibility
40 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Not applicable Interventional

Treating IBD With Inulin

NCT03653481
View directory record Official record
Conditions
Inflammatory Bowel Diseases
Interventions
Oligofructose-enriched Inulin OI, Maltodextrin
Dietary Supplement
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
8 Years to 21 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 21, 2022 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Not applicable Interventional

The Use of A Prebiotic to Promote a Healthy Gut Microbiome in Pediatric Stem Cell Transplant Recipients

NCT04111471
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Nov 20, 2024 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Not applicable Interventional

Physiological Effects of Yogurt With Bb12 in Subjects With GI Symptoms Strointestinal Symptoms

NCT01004484
View directory record Official record
Conditions
Non-diarrhea Functional Bowel Symptoms
Interventions
A probiotic yogurt with inulin, Acidified dairy snack
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 20, 2010 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Evaluation of the Effects of a Non-Caffeinated Energy Dietary Supplement

NCT04895800
View directory record Official record
Conditions
Health Behavior
Interventions
Phytovive, Placebo, Caffeine
Dietary Supplement
Lead sponsor
Nova Southeastern University
Other
Eligibility
18 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Davie, Florida
Source: ClinicalTrials.gov public record
Updated Jun 8, 2021 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Phase 2 Interventional Results available

Atorvastatin Calcium, Oligofructose-Enriched Inulin, or Sulindac in Preventing Cancer in Patients at Increased Risk of Developing Colorectal Neoplasia

NCT00335504
View directory record Official record
Conditions
Colon Cancer, Precancerous Condition, Rectal Cancer
Interventions
oligofructose-enriched inulin, sulindac, placebo, atorvastatin calcium, laboratory biomarker analysis
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
40 Years and older
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 14, 2017 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Phase 2 Interventional Results available

Inulin for Infections in the Intensive Care Unit

NCT03865706
View directory record Official record
Conditions
Antibiotic Resistant Infection, Nosocomial Infection, Pathogen Transmission, Nutrition Disorders, Critical Illness, Sepsis
Interventions
Inulin Oral Suspension, Placebo Oral Suspension, Broad-spectrum antibiotics
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 18, 2025 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Use of a Probiotic Supplement to Prevent Asthma in Infants

NCT00113659
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 10, 2024 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Constipation Fiber Trial

NCT02193997
View directory record Official record
Conditions
Functional Constipation in Children
Interventions
Fiber, Placebo
Other
Lead sponsor
Warren Bishop
Other
Eligibility
2 Years to 16 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 27, 2017 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tolerance and Utilization of Agave Inulin in Healthy Adults

NCT01925560
View directory record Official record
Conditions
Tolerance
Interventions
Agave Inulin, Placebo
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
20 Years to 40 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated May 13, 2014 · Synced Sep 6, 2026, 2:34 PM EDT
Completed Not applicable Interventional

Prebiotics, Gut Microbiota, and Cardiometabolic Health

NCT02346838
View directory record Official record
Conditions
Prediabetes
Interventions
Inulin, Placebo
Dietary Supplement
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
40 Years to 70 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 6, 2026, 2:34 PM EDT