Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 27, 2026, 2:15 PM EDT

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

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Acute Placebo Supplementation Clear all
Completed Phase 3 Interventional Results available

Darbepoetin Alfa With or Without Iron in Treating Anemia Caused By Chemotherapy in Patients With Cancer

NCT00661999
View directory record Official record
Conditions
Anemia, Leukemia, Lymphoma, Lymphoproliferative Disorder, Multiple Myeloma and Plasma Cell Neoplasm, Precancerous Condition, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
darbepoetin alfa, ferrous sulfate, sodium ferric gluconate complex in sucrose, placebo
Biological · Dietary Supplement · Drug + 1 more
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
502 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
2
States / cities
Scottsdale, Arizona • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 16, 2011 · Synced Sep 27, 2026, 2:15 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Exogenous Ketones on Cognitive Function in Older Adults With Prediabetes?

NCT07546409
View directory record Official record
Conditions
Prediabetes, Healthy (Controls)
Interventions
Ketone Monoester (KE), Placebo
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
60 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
2
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

MitoQ & Cardiopulmonary Responses During Exercise

NCT06069245
View directory record Official record
Conditions
Healthy
Interventions
MitoQ, Placebo
Dietary Supplement
Lead sponsor
Ball State University
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Muncie, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 4, 2023 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of L-citrulline Supplementation on Vascular Function in Metabolic Syndrome

NCT06025357
View directory record Official record
Conditions
Metabolic Syndrome, Menopause
Interventions
L-Citrulline supplementation, Placebo
Dietary Supplement
Lead sponsor
Texas Tech University
Other
Eligibility
45 Years to 79 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated May 14, 2025 · Synced Sep 27, 2026, 2:15 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Acute Ketone Supplementation on the Brain

NCT07711990
View directory record Official record
Conditions
Brain Health
Interventions
Ketone Ester Drink, Placebo
Dietary Supplement
Lead sponsor
Christopher Crabtree
Other
Eligibility
45 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influence of Flavonoids and Caffeine Supplementation on Resting Metabolism

NCT03752125
View directory record Official record
Conditions
Diet Modification
Interventions
Flavonoid, caffeine, Placebo
Dietary Supplement
Lead sponsor
Appalachian State University
Other
Eligibility
20 Years to 47 Years · Female only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 4, 2019 · Synced Sep 27, 2026, 2:15 PM EDT
Terminated Phase 3 Interventional

Early Versus Delayed Enteral Feeding and Omega-3 Fatty Acid/Antioxidant Supplementation for Treating People With Acute Lung Injury or Acute Respiratory Distress Syndrome (The EDEN-Omega Study)

NCT00609180
View directory record Official record
Conditions
Respiratory Distress Syndrome, Adult
Interventions
Minimal (Trophic) Feeding, Full Feeding, Omega-3 Fatty Acids and Antioxidant Supplements, Placebo
Behavioral · Dietary Supplement
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
13 Years and older
Enrollment
272 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
41
States / cities
Fresno, California • Sacramento, California • San Francisco, California + 20 more
Source: ClinicalTrials.gov public record
Updated Apr 12, 2016 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional

Effects of Vitamin D Supplementation on Lung Function in an Acute Pulmonary Exacerbation of Cystic Fibrosis

NCT00788138
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Vitamin D3, Placebo
Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
18 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 10, 2010 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional

Acute Probiotic Supplementation and Endothelial Function

NCT04364074
View directory record Official record
Conditions
Coronary Artery Disease, Hypertension, Hyperlipidemias, Peripheral Vascular Diseases, Cerebral Arterial Diseases
Interventions
Goodbelly, Placebo
Dietary Supplement
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
21 Years to 89 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Wauwatosa, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 21, 2023 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Study to Examine the Acute Impact of Veillonella Supplementation on Exercise and Lactate Responses

NCT05816291
View directory record Official record
Conditions
Lactate Blood Increase, Exhaustion - Physiological
Interventions
Time to Exhaustion at velocity at VO2max
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 50 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 17, 2023 · Synced Sep 27, 2026, 2:15 PM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

The Effects of Acute Melatonin Supplementation on Cardiovascular Responses to Sympathetic Activation

NCT04831398
View directory record Official record
Conditions
Healthy
Interventions
melatonin, Placebo
Dietary Supplement · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 35 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Norman, Oklahoma
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Flavonoids, Exercise, Gut-Derived Phenolics

NCT03249571
View directory record Official record
Conditions
Exercise and Gut-derived Phenolics
Interventions
Flavonoid supplement, Placebo
Dietary Supplement
Lead sponsor
Appalachian State University
Other
Eligibility
18 Years to 50 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 10, 2017 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Racial and Aging Effects of Acute Antioxidant Supplementation

NCT02157207
View directory record Official record
Conditions
Healthy
Interventions
Antioxidant, Placebo
Dietary Supplement · Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 75 Years
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 15, 2015 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Effects of Immulina TM Supplements With PASC Patients

NCT05524532
View directory record Official record
Conditions
Post Acute COVID-19 Syndrome
Interventions
Immulina TM, Placebo
Drug · Dietary Supplement
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years to 99 Years
Enrollment
101 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
8
States / cities
Honolulu, Hawaii • Baton Rouge, Louisiana • New Orleans, Louisiana + 5 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Phase 3 Interventional Results available

High Dose Preoperative Cholecalciferol Supplementation and Perioperative Vitamin D Status

NCT01689779
View directory record Official record
Conditions
Hypovitaminosis D
Interventions
100,000 IU cholecalciferol, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 27, 2017 · Synced Sep 27, 2026, 2:15 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Near-Infrared Spectroscopy, Acute Taurine Supplementation, and Isolated Muscular Endurance and Fatigue Resistance in Young Healthy Adults

NCT07654946
View directory record Official record
Conditions
Local Muscular Endurance and Fatigue, NIRS Skeletal Muscle Mitochondrial Capacity, Acute Taurine Supplementation
Interventions
Acute Taurine Supplementation, Acute Placebo Supplementation
Dietary Supplement
Lead sponsor
Louisiana State University and A&M College
Other
Eligibility
18 Years to 40 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional

Effect of Supplement on Appetite and GLP-1

NCT06790771
View directory record Official record
Conditions
Hunger
Interventions
High Dose Supplement, Low Dose Supplement, Placebo
Dietary Supplement
Lead sponsor
Texas Christian University
Other
Eligibility
18 Years to 60 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acquiring and Targeting Heat Exposures Necessary for Action

NCT05678738
View directory record Official record
Conditions
Heat Intolerance, Heat Stress, Fatigue; Heat
Interventions
Antioxidant Berry Supplementation, Acute and Chronic Exercise-Heat Stress, Placebo (non-juice) Supplementation
Dietary Supplement · Other
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 50 Years
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Phase 2 Interventional Results available

Glutamine in Treating Neuropathy Caused by Vincristine in Young Patients With Lymphoma, Leukemia, or Solid Tumors

NCT00365768
View directory record Official record
Conditions
Kidney Cancer, Leukemia, Lymphoma, Neurotoxicity, Peripheral Neuropathy, Sarcoma
Interventions
Glutamine, Placebo
Drug · Other
Lead sponsor
Columbia University
Other
Eligibility
5 Years to 21 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 8, 2016 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Phase 2 Interventional Results available

Vitamin D Supplementation and Acute Respiratory Infection in Older Long-Term Care Residents

NCT01102374
View directory record Official record
Conditions
Respiratory Infection
Interventions
High Dose Vitamin D, Standard Dose Vitamin D, Placebo, Usual Care
Drug · Dietary Supplement
Lead sponsor
University of Colorado, Denver
Other
Eligibility
60 Years and older
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 20, 2017 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Short Term Choline and Cardiovascular Health

NCT03327805
View directory record Official record
Conditions
Cardiovascular Risk Factor
Interventions
Choline, Placebo
Dietary Supplement
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Alpha-GPC on Muscle Power, GH Levels, and Cognitive Function

NCT06690619
View directory record Official record
Conditions
Cognition - Other, Strength Outcomes
Interventions
Placebo, 315 mg Alpha-GPC, 630 mg Alpha-GPC
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
25 Years to 55 Years · Male only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Canfield, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 14, 2024 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Phase 2 Interventional Results available

Nitrites, Exercise, and Peripheral Arterial Disease

NCT01684930
View directory record Official record
Conditions
Peripheral Arterial Disease
Interventions
Beetroot Juice (Beet-It Stamina Shot) & Supervised Exercise Training, Placebo Comparator Beverage (Beet-It Stamina Shot) & Exercise Training
Drug · Other
Lead sponsor
Duke University
Other
Eligibility
40 Years to 75 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 28, 2017 · Synced Sep 27, 2026, 2:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of XSurge Supplementation on Biomarkers and Performance From High Intensity Resistance Exercise

NCT02442245
View directory record Official record
Conditions
Exercise Performance Recovery
Interventions
XSurge, Placebo: Microcrystalline Cellulose, Control: No supplementation
Dietary Supplement · Other
Lead sponsor
Kemin Foods LC
Industry
Eligibility
18 Years to 35 Years · Male only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Jan 30, 2018 · Synced Sep 27, 2026, 2:15 PM EDT