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Showing 1–24 of 148 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Vascular Dilation Clear all
Terminated Not applicable Interventional Results available

Feasibility of Digital Thermal Monitoring to Assess Endothelium-Dependent Vasodilation in Patients Undergoing Hematopoietic Cell Transplantation (HCT)

NCT05029752
View directory record Official record
Conditions
Vascular, Endothelial, Endothelial Dysfunction, Endothelix
Interventions
Vendys II Device
Device
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
6 Years to 26 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Jul 21, 2026, 11:07 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Probing the Role of Mitochondrial Oxidative Stress in Impaired Vascular Function Among Young Adults With Early Life Adversity

NCT07244809
View directory record Official record
Conditions
Adverse Childhood Experience, Endothelial Function (FMD), Endothelial Injury, Mitochondrial Function, Oxidative Stress, Psychosocial Influence on Cardiovascular Disease
Interventions
Mitoquinone mesylate (MitoQ), Placebo
Dietary Supplement
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 29 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Nov 23, 2025 · Synced Jul 21, 2026, 11:07 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Free Fatty Acids and Vascular Function in Subjects With Diabetes

NCT00153179
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
acipimox, placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 24, 2018 · Synced Jul 21, 2026, 11:07 AM EDT
Recruiting Not applicable Interventional

Red Light Treatment in Peripheral Artery Disease

NCT03203239
View directory record Official record
Conditions
Peripheral Artery Disease, Claudication, Intermittent, Vasodilation
Interventions
Red Light (670 nm energy), Octafluoropropane
Device · Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 85 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Jul 21, 2026, 11:07 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Effects of Nitrite on Blood Vessel Dilation in Normal Volunteers

NCT00048477
View directory record Official record
Conditions
Nitric Oxide, Endothelium-Derived Relaxing Factor, Healthy
Interventions
L-NMMA and Sodium Nitrite
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 21, 2026, 11:07 AM EDT
Recruiting No phase listed Observational

Testosterone Deficiency and Endothelial Dysfunction After Spinal Cord Injury

NCT07227740
View directory record Official record
Conditions
Spinal Cord Injuries, Endothelial Dysfunction, Testosterone Deficiency
Interventions
Intra-arterial Infusion of Vasoactive Agents, Intra-arterial Vitamin C Infusion, Blood Sampling
Diagnostic Test
Lead sponsor
Craig Hospital
Other
Eligibility
18 Years to 89 Years · Male only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Englewood, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 20, 2025 · Synced Jul 21, 2026, 11:07 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 Jul 21, 2026, 11:07 AM EDT
Completed Not applicable Interventional Results available

Randomized Trial of Interventions to Improve Warfarin Adherence

NCT00904982
View directory record Official record
Conditions
Atrial Fibrillation, Deep Vein Thrombosis, Dilated Cardiomyopathies
Interventions
Financial Incentive and Med-eMonitor, 2Med-eMonitor
Behavioral · Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
268 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 15, 2017 · Synced Jul 21, 2026, 11:07 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Endothelial Dysfunction After SCI

NCT07227727
View directory record Official record
Conditions
Spinal Cord Injuries, Endothelial Dysfunction
Interventions
Intra-arterial Infusion of Vasoactive Agents, Intra-arterial Vitamin C Infusion, Blood Sampling
Procedure
Lead sponsor
Craig Hospital
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Englewood, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Jul 21, 2026, 11:07 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Study of Amiloride on Vascular Phenotypes in Young Adults With Prehypertension

NCT01308983
View directory record Official record
Conditions
Prehypertension
Interventions
Amiloride
Drug
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 35 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2010
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 22, 2012 · Synced Jul 21, 2026, 11:07 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Sex-related Differences in Sympathetic Vascular Transduction in the Setting of Hypoxemia

NCT05256069
View directory record Official record
Conditions
Vasodilation, Hypoxia
Interventions
Propranolol Pill, Placebo
Drug
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 45 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 14, 2025 · Synced Jul 21, 2026, 11:07 AM EDT
Completed Phase 2Phase 3 Interventional

Cyrotherapy vs. APC in GAVE

NCT00587405
View directory record Official record
Conditions
Watermelon Stomach
Interventions
cryotherapy, Argon Plasma Coagulation
Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 6, 2016 · Synced Jul 21, 2026, 11:07 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Pediatric Hypertension and the Renin-Angiotensin SystEm (PHRASE)

NCT04752293
View directory record Official record
Conditions
Hypertension, Left Ventricular Hypertrophy, Left Ventricular Dysfunction, Left Atrial Dilatation, Left Ventricular Diastolic Dysfunction, Kidney Diseases, Kidney Injury, Kidney Dysfunction, Sodium Urine High, Blood Pressure Disorders, Uric Acid Retention, Angiotensin Hypertension, Autonomic Dysfunction, Autonomic Imbalance, Pediatric Kidney Disease, Pediatric Obesity, Proteinuria, Albuminuria
Interventions
Not listed
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
7 Years to 18 Years
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Jul 21, 2026, 11:07 AM EDT
Withdrawn Phase 3 Interventional

Effects of Pulmonary Vasodilation Upon VA Coupling in Fontan Patients

NCT01607983
View directory record Official record
Conditions
Congenital Heart Disease, Fontan
Interventions
inhaled nitric oxide
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
4 Years to 60 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 3, 2018 · Synced Jul 21, 2026, 11:07 AM 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 4, 2022 · Synced Jul 21, 2026, 11:07 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Vascular Effects of Endothelium-Derived Versus Hemoglobin-Transported Nitric Oxide in Healthy Subjects

NCT00001963
View directory record Official record
Conditions
Diabetes Mellitus, Healthy, Hypercholesterolemia, Hypertension
Interventions
hemoglobin-transported nitric oxide
Procedure
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 21, 2026, 11:07 AM EDT
Recruiting No phase listed Observational

Abbott Vascular Medical Device Registry

NCT04573660
View directory record Official record
Conditions
Acute Myocardial Infarction, Restenoses, Coronary, Coronary Artery Lesions, Venous Embolism, Arterial Embolism
Interventions
Coronary and peripheral stents, Pacing catheters, Vascular plugs, Measurement and imaging (FFR and OCT), Peripheral dilatation catheters, Coronary dilatation catheters, Coronary and peripheral guidewires, Vessel closure/compression devices, Vascular access introducers
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
3,784 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2031
U.S. locations
7
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Los Angeles, California + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 2, 2025 · Synced Jul 21, 2026, 11:07 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

ANG-First Trial (Angiotensin II as First-Line Vasopressor Therapy in Cardiac Surgery)

NCT06487585
View directory record Official record
Conditions
Vasodilatory Hypotension During or After Cardiac Surgery
Interventions
Angiotensin II
Drug
Lead sponsor
University of Maryland St. Joseph Medical Center
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Towson, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 21, 2025 · Synced Jul 21, 2026, 11:07 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 Jul 21, 2026, 11:07 AM EDT
Completed Not applicable Interventional

Does Blood Vessel Vasodilation, Caused by Focal Infiltration of Lidocaine Cause Temporary Nerve Functional Recovery for Patients with Common Peroneal Nerve Injury or Entrapment: Testing the 'Phoenix Sign' Effect Between Lidocaine (a Common Local Anesthetic) and Papaverine, a Know Vasodilator

NCT06637046
View directory record Official record
Conditions
Drop Foot
Interventions
Diagnostic procedures, Lidocaine HCl
Diagnostic Test
Lead sponsor
Stephen Barrett
Other
Eligibility
18 Years to 85 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Marietta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 14, 2024 · Synced Jul 21, 2026, 11:07 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of the Response of Human Small Blood Vessels

NCT00001622
View directory record Official record
Conditions
Healthy, Hypercholesterolemia, Hypertension
Interventions
investigate the relationship between in vivo and in vitro vascular responses
Procedure
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 21, 2026, 11:07 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Miconazole on Blood Flow

NCT00004575
View directory record Official record
Conditions
Healthy
Interventions
Miconazole, L-NMMA, Bradykinin
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 21, 2026, 11:07 AM EDT
Completed Phase 2 Interventional Results available

Vitamin D to Improve Endothelial Function in SLE

NCT01911169
View directory record Official record
Conditions
Atherosclerosis, Systemic Lupus Erythematosus
Interventions
Cholecalciferol
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 80 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 26, 2017 · Synced Jul 21, 2026, 11:07 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Reducing Blood Pressure in Mid-life Adult Binge Drinkers

NCT05522075
View directory record Official record
Conditions
Alcohol Drinking, Binge Drinking, Blood Pressure, Alcohol Abstinence, Aging, Lifestyle Factors, Vasodilation, Behavioral Problem
Interventions
Exercise Training, Alcohol Abstinence Intervention
Behavioral
Lead sponsor
The University of Texas at Arlington
Other
Eligibility
50 Years to 64 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Arlington, Texas
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Jul 21, 2026, 11:07 AM EDT