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ClinicalTrials.gov public records Last synced Oct 22, 2026, 3:34 PM EDT

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

Showing 409–432 of 523 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Endothelial function Clear all
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Blood Collection for Research Related to Certain Diseases Involving Blood Vessels

NCT00047996
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2002
U.S. locations
2
States / cities
Bethesda, Maryland • Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 21, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dose-dependent Effects of Second-hand Smoke on Vascular Function

NCT01007760
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Respirable suspended particles (RSP) PM 2.5 dose of second-hand smoke
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 40 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 19, 2011 · Synced Oct 22, 2026, 3:34 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Neuromodulation in Patients With Pulmonary Arterial Hypertension

NCT06802380
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Low-level tragus stimulation, Sham stimulation
Device
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 90 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 27, 2025 · Synced Oct 22, 2026, 3:34 PM EDT
Terminated Phase 4 Interventional Results available

NSAIDs vs. Coxibs in the Presence of Aspirin

NCT03699293
View directory record Official record
Conditions
Rheumatoid Arthritis, Cardiovascular Diseases
Interventions
celecoxib 200mg capsule, naproxen sodium 550mg tablet, Aspirin 81mg tablet
Drug
Lead sponsor
Platelet and Thrombosis Research, LLC
Other
Eligibility
18 Years to 75 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Rosiglitazone on Blood Vessels in Patients With High Blood Pressure and High Cholesterol

NCT00006071
View directory record Official record
Conditions
Hypercholesterolemia, Hypertension
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 22, 2026, 3:34 PM EDT
Not listed Phase 4 Interventional

Coreg CR, Blood Vessel Stiffness and Blood Vessel Function

NCT00732511
View directory record Official record
Conditions
Endothelial Function, Diabetes Mellitus, Hypertension
Interventions
carvedilol, metoprolol extended release
Drug
Lead sponsor
State University of New York - Downstate Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Feb 10, 2011 · Synced Oct 22, 2026, 3:34 PM 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 5, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

The Acute Cardiovascular Effects of Nicotine in E-cigarettes (ACE) Study

NCT03010995
View directory record Official record
Conditions
Cigarette Smoking Toxicity, Nicotine, Acute Cardiovascular Disease
Interventions
Prazosin
Drug
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 40 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 26, 2018 · Synced Oct 22, 2026, 3:34 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Routine Validation and Reproducibility Testing of Laboratory Assays and Research Techniques Used for Endocrine, Cardiometabolic, and Musculoskeletal Disorder Research (VALD)

NCT07083557
View directory record Official record
Conditions
Obesity and Obesity-related Medical Conditions, Diabetes, Atherosclerotic Disease, Heart Failure, MASH, Sarcopenia, Osteoporosis, Hyperparathyroidism, Hypoparathyroidism, Ischemic Heart Disease, Cystic Fibrosis (CF), Chronic Kidney Disease(CKD), Osteopenia, Cachexia
Interventions
Endothelial cell collection
Other
Lead sponsor
Bettina Mittendorfer
Other
Eligibility
18 Years to 100 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2030
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Airway and Pulmonary Vascular Endothelial Function in Healthy Smokers: Effect of Inhaled Glucocorticosteroid Treatment

NCT02141633
View directory record Official record
Conditions
Smoking
Interventions
echocardiogram plus albuterol, airway blood flow plus albuterol, Fluticasone propionate, placebo
Procedure · Drug
Lead sponsor
University of Miami
Other
Eligibility
25 Years to 75 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 16, 2016 · Synced Oct 22, 2026, 3:34 PM EDT
Completed No phase listed Observational

Blood Vessel Study

NCT01524549
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 65 Years
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Dietary Sodium Intake on Vascular Endothelium

NCT01550315
View directory record Official record
Conditions
Postural Tachycardia Syndrome (POTS)
Interventions
Pulsitile Arterial Tonometry (PAT) Protocol, Calf Blood Flow in Reactive Hyperemia (CBF-RH), Evaluation of Forearm-Mediated Dilation
Procedure · Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 5, 2022 · Synced Oct 22, 2026, 3:34 PM EDT
Not yet recruiting Phase 2 Interventional

Vascular Effects of SGLT2i in Non-diabetic CKD

NCT07060417
View directory record Official record
Conditions
Non-diabetic Chronic Kidney Disease
Interventions
Empagliflozin, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Terminated Phase 3 Interventional Results available

The Effect of Omega-3 Polyunsaturated Fatty Acids in Congestive Heart Failure

NCT00944229
View directory record Official record
Conditions
Heart Failure
Interventions
LOVAZA (Omega-3), Placebo
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 25, 2016 · Synced Oct 22, 2026, 3:34 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Role of Endothelial Function in SCI CVD Risk

NCT06443151
View directory record Official record
Conditions
Spinal Cord Injuries, Cardiovascular Diseases, Endothelial Dysfunction
Interventions
Brachial intra-arterial infusion of vasoactive and antioxidant drugs (acetylcholine, nitroprusside, ascorbic acid), venous occlusion plethysmography, Acetylcholine, Sodium Nitroprusside, Ascorbic acid, venous phlebotomy
Procedure · Drug
Lead sponsor
Craig Hospital
Other
Eligibility
18 Years to 89 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Englewood, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional

Pediatric Atorvastatin in Diabetes Intervention Trial (PADIT)

NCT00130481
View directory record Official record
Conditions
Type 1 Diabetes Mellitus, Type 2 Diabetes Mellitus
Interventions
Atorvastatin 20 mg daily for 3 months
Drug
Lead sponsor
University of Florida
Other
Eligibility
10 Years to 18 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 7, 2012 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

The Role of Angiotensin Type I Receptor in the Regulation of Human Peripheral Vascular Function

NCT00001628
View directory record Official record
Conditions
Atherosclerosis, Heart Failure, Congestive, Hypertension, Myocardial Infarction
Interventions
Angiotensin II type 1 receptor antagonists
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 22, 2026, 3:34 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Predictive Medicine Research. (PRE MED)

NCT00336570
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
30 Years to 90 Years
Enrollment
288 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 18, 2013 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Phase 2 Interventional Results available

Evaluating the Effectiveness of Pentoxifylline at Improving Blood Vessel Function in HIV-infected People Not Receiving Antiretroviral Medications

NCT00796822
View directory record Official record
Conditions
HIV, Cardiovascular Diseases, Atherosclerosis
Interventions
Pentoxifylline, Placebo
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Nov 28, 2017 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Whole Body Periodic Acceleration on Airway Endothelial Function

NCT01213706
View directory record Official record
Conditions
Healthy, Smokers, Asthma
Interventions
Whole Body Periodic Acceleration (WBPA), Sham WBPA
Device
Lead sponsor
University of Miami
Other
Eligibility
20 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 10, 2016 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Whole Body Vibration Combined With L-citrulline Supplementation on Cardiovascular Function and Body Composition

NCT02143817
View directory record Official record
Conditions
Obesity, Pre-hypertension, Hypertension
Interventions
L-citrulline supplementation, Whole Body Vibration Training
Dietary Supplement · Other
Lead sponsor
Florida State University
Other
Eligibility
50 Years to 70 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Mar 10, 2015 · Synced Oct 22, 2026, 3:34 PM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Comparing Approaches to Assess Nitric Oxide-dependent Cutaneous Vasodilation

NCT06499844
View directory record Official record
Conditions
Endothelial Function
Interventions
Acetylcholine
Drug
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 30 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Aug 24, 2025 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Phase 4 Interventional Results available

How Vitamin D Analogues Affect Endothelial Cells in Patients on Dialysis

NCT00528788
View directory record Official record
Conditions
Hyperparathyroidism, Secondary, Kidney Failure, Chronic
Interventions
doxercalciferol
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 80 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 22, 2016 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Study of the Effects of Vitamin C on Patients With Type 2 Diabetes

NCT00001870
View directory record Official record
Conditions
Diabetes Mellitus, Non-Insulin Dependent, Non-Insulin Dependent
Interventions
Acetylcholine
Drug
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
Not listed
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 22, 2026, 3:34 PM EDT