Clinical trials: Vascular Dilation
Postural Tachycardia Syndrome (POTS)
Effect of Dietary Sodium Intake on Vascular Endothelium
The investigators will test the hypothesis that markers of vascular endothelial dysfunction will be exaggerated acutely with an extreme high sodium diet compared to an extreme low-sodium diet.
- Trial name
- NCT01550315
- Testing
- Pulsitile Arterial Tonometry (PAT) Protocol, Calf Blood Flow in Reactive Hyperemia (CBF-RH), Evaluation of Forearm-Mediated Dilation
- Where
- United States
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Healthy
Radial Artery Dilation Study: The Effect of Topical Administration of Nitroglycerin and Lidocaine Versus Lidocaine Alone of the Radial Artery Diameter
The radial artery, which is located on the outer side of the forearm, can be used in interventional procedures, such as cardiac catheterization, to provide access to the arterial blood supply.
- Trial name
- NCT00686231
- Testing
- Nitroglycerin 15mg, Nitroglycerin 30mg, Lidocaine 20mg
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Chronic Obstructive Pulmonary Disease (COPD)
Long Term Nitric Oxide Bioavailability on Vascular Health in Chronic Obstructive Pulmonary Disease
Chronic obstructive pulmonary disease (COPD) affects up to 14 million people and is among the top five leading causes of death worldwide.
- Trial name
- COPD-LT (NCT02774226)
- Testing
- Tetrahydrobiopterin (BH4), Antioxidant Cocktail
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Augusta University
Glucose Intolerance, Aortic Stiffness
Healthy Aging Through Functional Food
The purpose of this study is to determine whether dietary inducers of glyoxalase 1 are effective in improving metabolic and vascular health.
- Conditions
- Glucose Intolerance, Aortic Stiffness, Vasodilation
- Trial name
- HATFF (NCT02095873)
- Testing
- Glyoxalase 1 (Glo1) inducer
- Where
- United Kingdom
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Warwick
Coronary Stenosis, Coronary Artery Stenosis
Compare the Effectiveness and Safety of Two Different Kinds of Cutting Balloon in Coronary Artery Disease
The objective of this study is to evaluate safety and effectiveness of the SINOMED CBC coronary dilatation catheter during PCI in subjects with stenotic coronary arteries.
- Conditions
- Coronary Stenosis, Coronary Artery Stenosis, In-stent Restenosis
- Trial name
- NCT05509296
- Testing
- SINOMED CBC, NSE Coronary Dilatation Catheter
- Where
- 8 sites in China
- Volunteers
- 136 people
- Sponsor
- Sino Medical Sciences Technology Inc.
Vascular Function
Effect of Black Tea on Vascular Function
Epidemiological studies indicate that regular consumption of three cups of black tea per day reduces the risk of stroke or myocardial infarction.
- Trial name
- Heraclitus (NCT01945970)
- Testing
- Black tea extract, Positive control
- Where
- Italy
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Unilever R&D
Abdominal Aortic Aneurysm
AARDVARK (Aortic Aneurysmal Regression of Dilation: Value of ACE-Inhibition on RisK)
Abdominal aortic aneurysms (AAA) are balloon-like swellings of the body's main blood vessel (aorta) as it courses through the abdomen. As a result of the National Aneurysm Screening programme many more of these will be detected.
- Trial name
- AARDVARK (NCT01118520)
- Testing
- perindopril arginine, amlodipine 5mgs
- Where
- 9 sites in United Kingdom
- Volunteers
- 224 people
- Sponsor
- Imperial College London
Atherosclerosis, Systemic Lupus Erythematosus
Vitamin D to Improve Endothelial Function in SLE
Determine the effect of vitamin D repletion on flow mediated dilation (FMD, a measure of endothelial function) in vitamin D deficient systemic lupus erythematosus (SLE) patients.
- Trial name
- NCT01911169
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 9 people
- Sponsor
- Medical University of South Carolina
Peripheral Arterial Disease
Endothelial Function in Lower Extremity Bypass Grafts
This study will determine whether or not saphenous vein [arterial] bypass grafts in the leg relax in response to increases in blood flow.
- Trial name
- NCT00759707
- Testing
- L-N^G monomethyl arginine (L-NMMA)
- Where
- United States
- Volunteers
- 19 people
- Sponsor
- Brigham and Women's Hospital
Sleep
Long Sleep Duration and Vascular Function
Sleep duration has received much attention in recent years due to strong evidence that not enough sleep can increase risk for a number of diseases and disorders.
- Trial name
- NCT04679051
- Testing
- Sleep duration
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Texas Tech University
Ischemic Heart Disease, Coronary Artery Stenosis
A Clinical Evaluation of the MINI TREK RX 1.20 mm Coronary Dilatation Catheter in Stenotic Lesions
This is a prospective, single-arm, open-label, multi-center, observational study to assess the acute safety and efficacy of MINI TREK RX 1.20 mm for enlarging coronary luminal diameter during percutaneous coronary intervention…
- Conditions
- Ischemic Heart Disease, Coronary Artery Stenosis, Chronic Coronary Total Occlusion, Coronary Bypass Graft Stenosis
- Trial name
- CROSS (NCT01186198)
- Testing
- MINI TREK RX 1.20 mm Coronary Dilatation Catheter
- Where
- 4 sites in United States
- Volunteers
- 71 people
- Sponsor
- Abbott Medical Devices
Coronary Artery Disease
Sprinter Legend Balloon Catheter
Open label, single-arm trial to study the safety and effectiveness of the Sprinter Legend 1.25 mm angioplasty balloon.
- Trial name
- NCT00961311
- Testing
- Percutaneous Coronary Intervention, Sprinter Legend 1.25mm Balloon Catheter
- Where
- United States
- Volunteers
- 51 people
- Sponsor
- Medtronic Vascular
Heart Transplant Surgery, Lung Transplant Surgery
Inhaled Selective Pulmonary Vasodilators for Advanced Heart Failure Therapies and Lung Transplantation Outcomes
1. to conduct a clinical investigation to determine if inhaled epoprostenol (Veletri®, iEPO) and inhaled nitric oxide (iNO) will have similar impact on outcomes in adult patients undergoing durable LVAD placement, heart…
- Trial name
- INSPIRE-FLO (NCT03081052)
- Testing
- iNO, iEPO
- Where
- United States
- Volunteers
- 519 people
- Sponsor
- Duke University
Hypertension, Congestive Cardiomyopathy
The Acute Effects of the Angiotensin-converting Enzyme Inhibitor Enalaprilat on Flow Distribution
The primary objective of this study is to study the acute effects of angiotensin-converting enzyme inhibitor (ACEI) on systemic, pulmonary and cerebral blood flow in post bidirectional cavopulmonary connection (BCPC) patients.
- Trial name
- NCT00741156
- Testing
- Enalaprilat
- Where
- Canada
- Volunteers
- 12 people
- Sponsor
- The Hospital for Sick Children
Hypertension
A Study of the Effect of Nebivolol to Evaluate Its Vasodilatory Effects in Hypertensive Patients
The study is designed to compare the effects of nebivolol (10, 20, 40mg/day) with another beta blocker, extended-release metoprolol, at a range of doses.
- Trial name
- NCT00648895
- Testing
- Nebivolol, Metoprolol ER (TM)
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- Forest Laboratories
Type 2 Diabetes Mellitus
The Effect of Exenatide Compared to Lantus Insulin on Vascular Function in Type 2 Diabetes
The main goals of the study are to evaluate the effect of Exenatide on endothelial-dependent vasodilation, as measured by flow mediated dilation (FMD), to evaluate the effect on endothelial-independent vasodilation, as measured…
- Trial name
- NCT00353834
- Testing
- Exenatide, Glargine Insulin
- Where
- United States
- Volunteers
- 72 people
- Sponsor
- Joslin Diabetes Center
Metabolic Syndrome
The Impact of Free Fatty Acid Reduction on Vascular Function in the Metabolic Syndrome
This study will test the hypothesis that reducing the release of free fatty acids (FFA) from fat cells will restore insulin-mediated, endothelium-dependent vasodilation in people with the metabolic syndrome.
- Trial name
- NCT00759291
- Testing
- acipimox
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Coronary Artery Disease, Coronary Disease
Sapphire II PRO US Clinical Study
A prospective, open label, multi-center, single arm, observational study designed to evaluate the acute safety and device procedural success of the Sapphire II PRO 1.0 and 1.25 mm PTCA dilatation catheters in subjects with…
- Conditions
- Coronary Artery Disease, Coronary Disease, Myocardial Ischemia, Heart Diseases
- Trial name
- NCT03052530
- Testing
- Sapphire II PRO
- Where
- 4 sites in United States
- Volunteers
- 61 people
- Sponsor
- OrbusNeich
Endothelial Dysfunction, Obesity
Leptin Infusion and Endothelial Vasomotor Response
Adipose tissue is an active endocrine organ producing several hormones with circulatory and metabolic effects. In 1994, the hormone leptin was discovered.
- Conditions
- Endothelial Dysfunction, Obesity, Vasodilation, Venous Occlusion Plethysmography
- Trial name
- LIVARM (NCT04374500)
- Testing
- Leptin infusion plus vasodilators in healthy men, Leptin infusion in healthy men, Vasodilators in CAD patients
- Where
- 2 sites in Sweden, United Kingdom
- Volunteers
- 103 people, healthy volunteers welcome
- Sponsor
- Stefan Soderberg
Procedural Sedation
A Safety Study of AQUAVAN® (Fospropofol Disodium) Injection for Sedation During Minor Surgical Procedures.
Very often patients receive medications before a diagnostic, therapeutic, or surgical procedure to help them relax, keep them calm, and to relieve them from pain. This is called procedural sedation.
- Trial name
- NCT00327392
- Testing
- AQUAVAN® (fospropofol disodium) Injection
- Where
- 15 sites in United States
- Volunteers
- 123 people
- Sponsor
- Eisai Inc.