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Showing 1–24 of 307 matching trials from the live ClinicalTrials.gov search.
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Recruiting Not applicable Interventional

Effects of Urolithin A Supplementation on Glucose Metabolism in Healthy Adults 55 >= Years Old: A Randomized Triple-Masked Controlled Clinical Trial

NCT06274749
View directory record Official record
Conditions
Healthy Volunteer
Interventions
Urolithin A, Placebo
Dietary Supplement
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
55 Years to 100 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nutraceutical Supplement With Standardized Botanicals in Males With Thinning Hair

NCT05339958
View directory record Official record
Conditions
Hair Thinning
Interventions
Nutrafol® Men Hair Growth Nutraceutical, Placebo Supplement
Dietary Supplement · Other
Lead sponsor
Nutraceutical Wellness Inc.
Industry
Eligibility
21 Years to 55 Years · Male only
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
2
States / cities
Manhattan Beach, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 31, 2023 · Synced Sep 21, 2026, 2:38 AM EDT
Withdrawn Phase 2Phase 3 Interventional

Enhancing Recovery Through a Combined Mechanobiologic Intervention Following Meniscus Repair

NCT05505747
View directory record Official record
Conditions
Meniscus Tear, Meniscus; Derangement, Meniscus Lesion, Meniscus Disorder
Interventions
Fisetin, Placebo oral capsule
Drug
Lead sponsor
Austin V Stone
Other
Eligibility
18 Years to 45 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 7, 2025 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Correlating Probiotic Dietary Supplements During Pregnancy With Maternal Microbiome Profiles

NCT03611647
View directory record Official record
Conditions
Pregnancy Related
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
3
States / cities
La Jolla, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 10, 2019 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Spirulina Oral Supplement for Enhancing Host Resilience to Virus Infection

NCT05447078
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Immulina TM, Placebo
Drug · Dietary Supplement
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years and older
Enrollment
492 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Phase 1 Interventional

Lipoic Acid as a Treatment for Acute Optic Neuritis

NCT01294176
View directory record Official record
Conditions
Optic Neuritis
Interventions
Lipoic Acid
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 25, 2019 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy of Transfer Factor to Prevent Upper Respiratory Tract Infections in Healthy Adults

NCT01106183
View directory record Official record
Conditions
Upper Respiratory Tract Infections Due to Influenza or Rhinovirus
Interventions
transfer factor, Placebo
Dietary Supplement
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 40 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Not applicable Interventional

Resveratrol-Leucine Metabolite Synergy in Pre-diabetes

NCT01593605
View directory record Official record
Conditions
Impaired Glucose Tolerance
Interventions
Resveratrol, resveratrol /HMB, Placebo treatment
Dietary Supplement · Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 55 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 19, 2013 · Synced Sep 21, 2026, 2:38 AM EDT
Withdrawn Not applicable Interventional

Omega 3 Supplementation and Ocular Surface Disease in Glaucoma

NCT01630551
View directory record Official record
Conditions
Ocular Surface Disease
Interventions
Fishoil supplement, Olive Oil
Dietary Supplement
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 27, 2017 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Ketone Esters for Appetite, Cognition, and Cardiovascular Function in Individuals With Obesity and Insulin Resistance

NCT05651243
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Ketone Ester Supplement, Placebo
Dietary Supplement · Other
Lead sponsor
University of Southern Mississippi
Other
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Hattiesburg, Mississippi
Source: ClinicalTrials.gov public record
Updated May 21, 2024 · Synced Sep 21, 2026, 2:38 AM EDT
Terminated Phase 3 Interventional Results available

Effect of Vitamin D Supplement on Inflammation Markers in High-Risk Cardiovascular Patients With Chronic Kidney Disease

NCT01012414
View directory record Official record
Conditions
Coronary Artery Disease, Chronic Kidney Disease, Hypovitaminosis D, Secondary Hyperparathyroidism
Interventions
paricalcitol, placebo
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 19, 2014 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Oral Adenosine-triphosphate (ATP) on Human Muscle Performance

NCT01141504
View directory record Official record
Conditions
Healthy Subjects
Interventions
PeakATP 250, Placebo, PeakATP 400, PeakATP 400 plus proprietary blend
Dietary Supplement
Lead sponsor
Metabolic Technologies Inc.
Industry
Eligibility
20 Years to 30 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Ames, Iowa
Source: ClinicalTrials.gov public record
Updated Jan 9, 2012 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Impact of Maternal Vitamin A or Beta-Carotene Supplementation on Maternal and Infant Mortality in Bangladesh

NCT00198822
View directory record Official record
Conditions
Vitamin A Deficiency, Maternal Mortality, Infant Mortality
Interventions
Vitamin A or Beta-Carotene Supplements
Dietary Supplement
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
15 Years to 49 Years · Female only
Enrollment
59,666 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 6, 2012 · Synced Sep 21, 2026, 2:38 AM EDT
Terminated Phase 2 Interventional

Cholecalciferol Supplementation in Strengthening Inspiratory Muscles in Cholecalciferol-Deficient Patients With Chronic Obstructive Pulmonary Disease

NCT02877641
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, Muscle Weakness
Interventions
Cholecalciferol, Laboratory Biomarker Analysis, Multivitamin, Placebo, Questionnaire Administration
Dietary Supplement · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
50 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Feb 14, 2017 · Synced Sep 21, 2026, 2:38 AM EDT
Recruiting Phase 2 Interventional

Zinc as an Adjunctive Therapy for Cervical Dystonia

NCT07140874
View directory record Official record
Conditions
Cervical Dystonia
Interventions
Zinc citrate, Placebo
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 89 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 21, 2026, 2:38 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Pilot Study to Evaluate the Ability of Lactoferrin to Modulate Iron Homeostasis and Exercise Performance in Exercising Females

NCT07546591
View directory record Official record
Conditions
Iron Deficiencies, Low Ferritin, Iron Deficiency, Exercise Performance of Fit Athletes
Interventions
Lactoferrin 100 mg, Lactoferrin 300 mg, Iron Supplementation (5 mg)
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Examination of Bromocriptine on Homeostatic and Hedonic Mechanisms of Food Intake in Individuals at High Risk for T2DM

NCT05405244
View directory record Official record
Conditions
Overweight and Obesity, Eating Behavior
Interventions
Placebo, Bromocriptine-QR
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 35 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 6, 2022 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Phase 2 Interventional Results available

Cognitive Impact of Pomegranate Polyphenols Following Ischemic Stroke

NCT02442804
View directory record Official record
Conditions
Stroke
Interventions
POMx, Placebo
Dietary Supplement · Other
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years to 89 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Aug 1, 2017 · Synced Sep 21, 2026, 2:38 AM EDT
Terminated Not applicable Interventional

Vitamin D Supplement in Preventing Colon Cancer in African Americans With Colon Polyps

NCT00870961
View directory record Official record
Conditions
Colorectal Cancer, Precancerous Condition
Interventions
cholecalciferol, placebo
Dietary Supplement · Other
Lead sponsor
Northwestern University
Other
Eligibility
50 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 15, 2013 · Synced Sep 21, 2026, 2:38 AM EDT
Withdrawn Not applicable Interventional

Probiotic Use in Patients With Prior COPD Exacerbation

NCT02185092
View directory record Official record
Conditions
COPD, Obstructive Lung Disease
Interventions
Lactobacillus GG, Sugar pill
Dietary Supplement · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 99 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated May 22, 2017 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Phase 2 Interventional

Evaluating the Dietary Supplement Anatabloc in Thyroid Health-ASAP (Antabloc Supplementation Autoimmune Prevention)

NCT01551498
View directory record Official record
Conditions
Thyroiditis, Autoimmune
Interventions
Anatabloc Supplement, Placebo
Dietary Supplement
Lead sponsor
Rock Creek Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
9
States / cities
West Palm Beach, Florida • Zephyrhills, Florida • La Grange, Illinois + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2015 · Synced Sep 21, 2026, 2:38 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Efficacy Study of AlphaBRAIN Administered Orally

NCT02739139
View directory record Official record
Conditions
Cognitive Functioning
Interventions
AlphaBrain
Dietary Supplement
Lead sponsor
Onnits Labs, LLC
Industry
Eligibility
18 Years to 35 Years
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Chestnut Hill, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 14, 2016 · Synced Sep 21, 2026, 2:38 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

ALA-enriched Nutrition for Prevention of Cognitive Decline in APOE4 Older Adults

NCT07392723
View directory record Official record
Conditions
Cognitive Dysfunction, Alzheimer Disease, Blood-Brain Barrier, Apolipoprotein E, Deficiency or Defect of, Brain Aging, Fatty Acids, Omega-3
Interventions
Alpha-Linolenic Acid (2.6 g/day), Placebo Control Group
Drug · Dietary Supplement
Lead sponsor
Michal Schnaider Beeri, Ph.D.
Other
Eligibility
60 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Sep 21, 2026, 2:38 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Examining Olive Oil Extract on Knee Comfort and Function

NCT07514013
View directory record Official record
Conditions
Healthy Adult Male, Healthy Adult Females, Joint Discomfort
Interventions
Olive Oil Extract, Placebo
Dietary Supplement
Lead sponsor
Applied Food Sciences Inc.
Industry
Eligibility
40 Years to 75 Years
Enrollment
168 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 21, 2026, 2:38 AM EDT