Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 24, 2026, 7:32 PM EDT

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Showing 241–264 of 680 matching trials from the live ClinicalTrials.gov search.
Conditions
Dental Plaque
Interventions
Livionex® Dental Gel, PreviDent 5000 plus/Tom's of Maine Children's toothpaste, Kolibree Toothbrush
Drug · Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
Not listed
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
San Francisco, California
Completed Not applicable Interventional Accepts healthy volunteers

The Cognitive Ageing Nutrition and Neurogenesis (CANN) Trial

NCT02525198
Conditions
Mild Cognitive Impairment, Subjective Memory Impairment
Interventions
fatty acid/flavonoid blend, Placebo
Dietary Supplement
Lead sponsor
University of East Anglia
Other
Eligibility
55 Years and older
Enrollment
259 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Urbana, Illinois
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Curcumin and Retinal Study

NCT05774704
Conditions
Bioavailability, Gut Microbiome, Safety
Interventions
Low curcumin group, High curcumin group
Drug
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
40 Years to 89 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Lubbock, Texas
Conditions
Dysbiosis, Clostridium Difficile, Pet-Human Bonding, Antibiotic-Associated Colitis
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Cancer-related Cognitive Dysfunction, Primary Brain Neoplasm
Interventions
Aerobic Exercise, Behavioral Intervention, Follow-Up, Internet-Based Intervention, Medical Device Usage and Evaluation, Questionnaire Administration, Resistance Training
Other · Behavioral · Procedure
Lead sponsor
Emory University
Other
Eligibility
15 Years to 39 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Atlanta, Georgia • Houston, Texas
Conditions
Crohn Disease
Interventions
Anti-TNF therapy
Drug
Lead sponsor
Connecticut Children's Medical Center
Other
Eligibility
6 Years to 17 Years
Enrollment
1,270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
22
States / cities
Phoenix, Arizona • Los Angeles, California • San Diego, California + 19 more
Conditions
Colorectal Cancer
Interventions
Low Cysteine Diet, High Cysteine Diet
Other
Lead sponsor
Purdue University
Other
Eligibility
45 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Indianapolis, Indiana • West Lafayette, Indiana
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
Pseudomyxoma Peritonei, Appendiceal Neoplasm, Cancer, Appendiceal
Interventions
Bio-specimen collection, Questionnaire
Other
Lead sponsor
Mercy Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Vitamin A Deficiency
Interventions
Not listed
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
12 Months to 24 Months
Enrollment
258 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
2
States / cities
Davis, California
Conditions
Irritable Bowel Syndrome
Interventions
Curcumin, Placebo
Dietary Supplement
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
10 Years to 18 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Recruiting Not applicable Interventional Accepts healthy volunteers

Gut Microbiota-dependent Health Impacts of Haskap Berries

NCT06546020
Conditions
Metabolic Disease, Inflammation, Microbial Colonization
Interventions
Haskap berry smoothie, Placebo comparator
Dietary Supplement
Lead sponsor
Montana State University
Other
Eligibility
35 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Bozeman, Montana
Conditions
Carcinoma, Non-Small-Cell Lung, Carcinoma, Colorectal
Interventions
Pembrolizumab Injection
Drug
Lead sponsor
Persephone Biosciences
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
2
States / cities
Fountain Valley, California • Winter Haven, Florida
Recruiting Not applicable Interventional Accepts healthy volunteers

Kimchi and Gut Health

NCT07435831
Conditions
Healthy Adult Participants
Interventions
60 grams per day of intervention food
Other
Lead sponsor
University of California, Davis
Other
Eligibility
19 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
2
States / cities
Davis, California
Conditions
Cancer
Interventions
Not listed
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Galveston, Texas
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Consuming Red Meat on the Gut Microbiota in Young Adults

NCT03885544
Conditions
Diet Modification
Interventions
Controlled Lacto-ovo vegetarian diet, Controlled Unprocessed red meat diet, Controlled processed red meat diet
Other
Lead sponsor
Purdue University
Other
Eligibility
20 Years to 35 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
West Lafayette, Indiana
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Nutritional Supplement on Mental Wellness in Adults

NCT06058364
Conditions
Low Mood
Interventions
Intervention 1 - Triglyceride, Intervention 2 - Placebo
Dietary Supplement
Lead sponsor
Pharmavite LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Depression, Clinical Depression, Depression, Anxiety, Depression, Postpartum, Depression, Endogenous, Depression in Remission, Depression Chronic, Depression Moderate, Depression Severe
Interventions
No Intervention
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2030
U.S. locations
1
States / cities
Ventura, California
Conditions
Mesothelioma, Mesothelioma Malignant, Mesothelioma; Lung, Mesotheliomas Pleural, Mesothelioma Peritoneum, Mesothelioma; Liver, Mesothelioma; Omentum
Interventions
No intervention
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2030
U.S. locations
1
States / cities
Ventura, California
Conditions
Blood Pressure, Body Composition, Immune Function
Interventions
Synbiotic, Probiotic, Placebo
Dietary Supplement
Lead sponsor
Skidmore College
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Saratoga Springs, New York
Conditions
Chronic Kidney Diseases
Interventions
Oligofructose-enriched inulin (p-inulin), No treatment
Dietary Supplement · Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Conditions
Non-Alcoholic Fatty Liver Disease, Obesity
Interventions
Fructose Solution (75 Grams), Glucose Solution (75 grams)
Other
Lead sponsor
Rockefeller University
Other
Eligibility
45 Years to 70 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
New York, New York
Conditions
Type 1 Diabetes
Interventions
Acetylated and Butyrylated High Amylose Maize Starch
Drug
Lead sponsor
Indiana University
Other
Eligibility
11 Years to 17 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Conditions
Nutrition Intake, Nutrition Status, Gastrointestinal Microbiome, GLP-1
Interventions
AG1 - Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
18 Years to 59 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Santa Monica, California