Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 19, 2026, 11:05 PM EDT

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

Showing 193–216 of 1,843 matching trials from the live ClinicalTrials.gov search.
Conditions
Allogeneic Hematopoietic Cell Transplantation
Interventions
Nicotinamide riboside (NR)
Drug
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Conditions
Urticaria
Interventions
Vitamin D (4,000 IU/day), Vitamin D (400 IU/day), Omalizumab
Dietary Supplement · Drug
Lead sponsor
Selina Gierer, D.O.
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Kansas City, Kansas
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Vitamin D Supplementation on Cardiac Structure and Function

NCT01630213
Conditions
Cardiovascular Disease
Interventions
Vitamin D3 + fish oil/fish oil placebo, Vitamin D3 placebo + fish oil/fish oil placebo
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
50 Years and older
Enrollment
1,025 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Phase 3 Interventional Accepts healthy volunteers Results available

DHA Supplementation and Pregnancy Outcome

NCT00266825
Conditions
Pregnancy
Interventions
DHA, Placebo capsule
Drug · Other
Lead sponsor
Susan Carlson, PhD
Other
Eligibility
16 Years to 36 Years · Female only
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2011
U.S. locations
2
States / cities
Kansas City, Kansas • Kansas City, Missouri
Conditions
Muscle Damage
Interventions
Solarplast (R), Placebo
Dietary Supplement
Lead sponsor
Kent State University
Other
Eligibility
18 Years to 35 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Kent, Ohio
Conditions
Cardiovascular Risk Factor
Interventions
Strawberry powder, Placebo powder
Dietary Supplement
Lead sponsor
University of Arizona
Other
Eligibility
30 Years to 65 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Tucson, Arizona
Conditions
ADHD, Sleep Problems
Interventions
Ferrous Sulfate, Placebo
Dietary Supplement · Other
Lead sponsor
Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
Other
Eligibility
8 Years to 18 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Joint Discomfort, Joint Pain, Stiffness, Function, Joint Pain, Hot Flashes, Hot Flash, Night Sweats, Vasomotor Symptoms
Interventions
JDS-HF3.0, Placebo
Dietary Supplement · Other
Lead sponsor
Bonafide Health
Industry
Eligibility
50 Years to 70 Years · Female only
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Harrison, New York
Completed Not applicable Interventional

Trauma Screening and Supplementation

NCT03658278
Conditions
Trauma, Nutritional Deficiency, Wound Heal
Interventions
Juven
Dietary Supplement
Lead sponsor
Michael C Willey
Other
Eligibility
18 Years to 100 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Iowa City, Iowa
Conditions
Diabetes
Interventions
Lovaza (fish oil)
Dietary Supplement
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Completed Early Phase 1 Interventional Results available

Melatonin Versus Placebo in Breast Cancer

NCT01805089
Conditions
Breast Cancer
Interventions
Melatonin 3 mg
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
2
States / cities
Boston, Massachusetts
Conditions
Asthma
Interventions
Vitamin E supplement rich in gamma tocopherol
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Conditions
Aging
Interventions
Whey Protein, Collagen Protein, Placebo
Dietary Supplement
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
65 Years and older
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
2
States / cities
Galveston, Texas
Conditions
Weight Loss, Obesity
Interventions
Protein supplementation, Diet counseling and group education lessons
Dietary Supplement · Behavioral
Lead sponsor
Duke University
Other
Eligibility
45 Years and older · Female only
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Omega-3 Supplementation During Pregnancy on Regulation of Stress

NCT01158976
Conditions
Healthy Pregnant Women
Interventions
Docosahexanoic Acid, Placebo
Dietary Supplement · Other
Lead sponsor
University of Chicago
Other
Eligibility
20 Years to 34 Years · Female only
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
2
States / cities
Chicago, Illinois • Pittsburgh, Pennsylvania
Conditions
Prostate Cancer
Interventions
exercise intervention, nutritional supplementation, quality-of-life assessment, questionnaire administration, pharmacological study, laboratory biomarker analysis
Behavioral · Dietary Supplement · Procedure + 1 more
Lead sponsor
University of Southern California
Other
Eligibility
50 Years and older · Male only
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Not listed Not applicable Interventional Accepts healthy volunteers

QuadraMune(TM) for Prevention of COVID-19

NCT04421391
Conditions
Covid19, Coronavirus, SARS-CoV 2
Interventions
QuadraMune(TM)
Dietary Supplement
Lead sponsor
Therapeutic Solutions International
Industry
Eligibility
18 Years to 120 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Oceanside, California
Conditions
Preeclampsia, Pregnancy Loss
Interventions
Not listed
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
684 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2011
U.S. locations
1
States / cities
Jackson, Mississippi
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Blueberry Consumption on Gastrointestinal Health

NCT03934177
Conditions
Obesity, Circadian Dysregulation
Interventions
Blueberry powder, Placebo powder
Dietary Supplement
Lead sponsor
University of Nebraska Lincoln
Other
Eligibility
19 Years to 70 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
2
States / cities
Lincoln, Nebraska • Omaha, Nebraska
Recruiting Not applicable Interventional Accepts healthy volunteers

The Efficacy of Vitamin D Supplementation to Sustain Performance Outcomes

NCT07654777
Conditions
Acute Stress Reaction
Interventions
Vitamin D3 (Cholecalciferol), Oral Placebo Tablet
Dietary Supplement
Lead sponsor
Walter Reed Army Institute of Research (WRAIR)
Federal
Eligibility
18 Years to 40 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Silver Spring, Maryland
Completed Not applicable Interventional Accepts healthy volunteers

The Influence of Race and MitoQ Supplementation on Skin Blood Flow in the Cold

NCT06784531
Conditions
Cold Exposure
Interventions
Mitoquinone mesylate (MitoQ), Placebo, Cold Water Hand Immersion, Cold Air Exposure
Dietary Supplement · Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 40 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Natick, Massachusetts
Conditions
Recurrent Low Back Pain
Interventions
Spinal Manipulation
Procedure
Lead sponsor
University of Western States
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Portland, Oregon
Conditions
Quad Atrophy
Interventions
Amino Acid, Placebo
Drug · Other
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
40 Years to 100 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
New York, New York
Completed Not applicable Interventional Results available

Ketone Supplementation in Cystic Fibrosis

NCT04938726
Conditions
Cystic Fibrosis
Interventions
Ketone Monoester
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 89 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Birmingham, Alabama