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Showing 1–24 of 75 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Flow-mediated dilation Clear all
Completed No phase listed Observational Accepts healthy volunteers

Vitamin D, Insulin Sensitivity, and Vascular Associations in Adolescents

NCT01041365
View directory record Official record
Conditions
Insulin Sensitivity, Flow-mediated Dilation, Arterial Stiffness
Interventions
Not listed
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
14 Years to 18 Years · Female only
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jan 13, 2014 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Creatine Monohydrate Supplementation and Vascular Endothelial Health

NCT05014659
View directory record Official record
Conditions
Endothelial Dysfunction, Oxidative Stress
Interventions
Creatine monohydrate, Placebo
Dietary Supplement
Lead sponsor
Florida State University
Other
Eligibility
50 Years to 64 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Jan 12, 2023 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Phase 2 Interventional Results available

A Clinical Trial for People HIV+ Age > 50 at Risk for Heart Disease

NCT01578772
View directory record Official record
Conditions
Endothelial Dysfunction
Interventions
Telmisartan
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
50 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 7, 2014 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Sitagliptin Effects on Arterial Vasculature and Inflammation in Obesity

NCT02576288
View directory record Official record
Conditions
Atherosclerosis, Inflammation
Interventions
Sitagliptin, Placebo
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 40 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 16, 2019 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Phase 4 Interventional Results available

Efficacy of Fish Oil in Lupus Patients

NCT00828178
View directory record Official record
Conditions
Systemic Lupus Erythematosus
Interventions
Omega-3, flow-mediated dilation of the brachial artery, corn starch
Drug · Device · Other
Lead sponsor
Michelle Petri M.D.,MPH
Other
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 17, 2016 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

COMP-4 Supplementation and Brachial Artery FMD

NCT05595915
View directory record Official record
Conditions
Aging, Endothelial Dysfunction, Senescence
Interventions
COMP-4
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 39 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 8, 2026 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Not applicable Interventional Results available

Phosphodiesterase Type 5 Inhibition to Improve Endothelial Function and Vascular Remodeling in Chronic Kidney Disease and End Stage Renal Disease Patients Requiring New Arteriovenous Fistula

NCT02414204
View directory record Official record
Conditions
Improve Endothelial Function and Decrease Vascular Stenosis
Interventions
Sildenafil, Placebo
Drug · Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years to 99 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 11, 2019 · Synced Sep 7, 2026, 5:26 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Study of Trilipix Effects on Lipids and Arteries

NCT01025492
View directory record Official record
Conditions
Dyslipidemia
Interventions
Trilipix, placebo
Drug
Lead sponsor
University of Utah
Other
Eligibility
30 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 31, 2016 · Synced Sep 7, 2026, 5:26 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Black Women's Life Experience On Cardiovascular Health Via Ongoing Monitoring

NCT06150989
View directory record Official record
Conditions
Cardiovascular Diseases, Heart Disease Risk Factors
Interventions
Observational Group
Behavioral
Lead sponsor
The University of Texas at Arlington
Other
Eligibility
18 Years to 49 Years · Female only
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Arlington, Texas
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Sodium Nitrite to Treat Arterial Aging

NCT02022670
View directory record Official record
Conditions
Vascular Aging
Interventions
Placebo, Sodium Nitrite
Drug
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
50 Years to 79 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 14, 2015 · Synced Sep 7, 2026, 5:26 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

COPD-Related Physiology and the Brain

NCT03269721
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive (COPD), Cognitive Impairment
Interventions
Neuropsychological Assessment, Spirometry, Arterial Blood Gas, Diffusion Capacity of the Lung for Carbon Monoxide, 6 Minute Walk Test, Systemic Vascular Measures, Blood Biomarkers, Symptom Questionnaire Measures, Brain MRI
Behavioral · Procedure · Diagnostic Test + 1 more
Lead sponsor
Karin Hoth
Other
Eligibility
30 Years to 85 Years
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2025
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Sep 7, 2026, 5:26 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Flavonoids in the Treatment of Endothelial Dysfunction in Children With Diabetes

NCT01307917
View directory record Official record
Conditions
Diabetic Nephropathy, Endothelial Dysfunction
Interventions
flavonoids
Dietary Supplement
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
12 Years to 21 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Amarillo, Texas
Source: ClinicalTrials.gov public record
Updated Dec 16, 2012 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Sports Supplements on Blood Flow

NCT04278053
View directory record Official record
Conditions
Determine the Effects of Nitrosigine and Citrulline-malate on Flow-mediated Dilation Among Young Adults
Interventions
inositol-stabilized arginine silicate
Dietary Supplement
Lead sponsor
University of Arkansas, Fayetteville
Other
Eligibility
18 Years to 29 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Fayetteville, Arkansas
Source: ClinicalTrials.gov public record
Updated May 23, 2022 · Synced Sep 7, 2026, 5:26 AM EDT
Recruiting Not applicable Interventional

Sleep and Circadian Mechanisms in Hypertension

NCT05184933
View directory record Official record
Conditions
Hypertension, Cardiovascular Diseases, Cardiovascular Risk Factors, Circadian Rhythms, Sleep
Interventions
At-home Polysomnography, Circadian Protocol, Rested Wakefulness Trial, Overnight Sleep Trial, Regularized Sleep Schedule
Other · Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
25 Years to 64 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Sep 7, 2026, 5:26 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Investigation of the Effects of Electronic Cigarettes on Vascular Health

NCT03041493
View directory record Official record
Conditions
Vascular Health
Interventions
Electronic cigarette, traditional cigarette, (sham cigarette) - no actual exposure to cigarettes
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 17, 2021 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Not applicable Interventional Results available

Singing and Cardiovascular Health in Older Adults

NCT04121741
View directory record Official record
Conditions
Cardiovascular Diseases, Cardiovascular Risk Factor, Cardiovascular Health
Interventions
Singing with Music Therapist, Singing with Guided Video, Control Arm
Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
55 Years to 79 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 4, 2025 · Synced Sep 7, 2026, 5:26 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Black Forest Cocoa Flavanol Supplementation and Health Trial

NCT07747714
View directory record Official record
Conditions
Endothelial Function, Oxidative Stress, Inflamation, Vascular Health
Interventions
Cocoa Flavanol Supplement, Low-Flavanol Control Powder
Dietary Supplement
Lead sponsor
The Black Forest LLC
Industry
Eligibility
30 Years to 75 Years · Male only
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
2
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Phase 4 Interventional Results available

The Effect of Exenatide Compared to Lantus Insulin on Vascular Function in Type 2 Diabetes

NCT00353834
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
Exenatide, Glargine Insulin
Drug
Lead sponsor
Joslin Diabetes Center
Other
Eligibility
18 Years to 75 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 8, 2018 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Not applicable Interventional

Effect of Ile-Pro-Pro (IPP) on Endothelial Function in Patients With Coronary Artery Disease

NCT00924157
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
IPP, Placebo
Dietary Supplement · Other
Lead sponsor
Boston University
Other
Eligibility
21 Years to 80 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 24, 2012 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Short Term Ketone Supplementation and Cardiometabolic Health

NCT04236388
View directory record Official record
Conditions
Cardiovascular Risk Factor
Interventions
Ketone drink, Placebo drink
Dietary Supplement
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
50 Years to 75 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cardioprotective Activities Of Whole Eggs On Vascular Endothelial Function In Prediabetic Adults

NCT02364570
View directory record Official record
Conditions
Prediabetes, Cardiovascular Disease
Interventions
Glucose (100g), Glucose (75g), Whole Eggs, Egg Whites, Egg Yolks
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 50 Years · Male only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 2, 2019 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Not applicable Interventional Results available

Effect of Low Carbohydrate Versus Low Fat Diet in the Treatment of Dyslipidemia in Obese Children With Metabolic Syndrome

NCT03937960
View directory record Official record
Conditions
Metabolic Syndrome, Obesity, Dyslipidemias
Interventions
Carbohydrate restricted group, Standard low fat diet
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
10 Years to 18 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Dec 21, 2022 · Synced Sep 7, 2026, 5:26 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Acute Effects of Watermelon on Vascular Function and Serum Lycopene

NCT03608254
View directory record Official record
Conditions
Vascular Health of Postmenopausal Women
Interventions
100% watermelon juice
Other
Lead sponsor
University of Alabama, Tuscaloosa
Other
Eligibility
65 Years to 70 Years · Female only
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Tuscaloosa, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 13, 2022 · Synced Sep 7, 2026, 5:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cardiovascular Assessment of the Effects of Tobacco and Nicotine Delivery Products

NCT01964807
View directory record Official record
Conditions
Adverse Effect of Other Agents Primarily Affecting the Cardiovascular System, Initial Encounter
Interventions
Cigarette, NIDA test type with 16.6 mg nicotine, Cigarette, NIDA test type with <0.45 mg nicotine, Electronic cigarette with 18 mg/ml nicotine, Electronic Cigarette with no nicotine, Moist snuff, Sham Smoking, Secondhand cigarette smoke (SHS), Conditioned, filtered air, Sham Moist Snuff
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 50 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 26, 2021 · Synced Sep 7, 2026, 5:26 AM EDT