Clinical trials: Vasodilation
Migraine Without Aura
Effect of PACAP38/VIP on Migraineurs Measured by Magnetic Resonance
The purpose of this study is to examine and compare the effect of pituitary adenylate cyclase-activating polypeptide-38 (PACAP38) and vasoactive intestinal polypeptide (VIP) on intracranial arteries and neuronal activity in…
- Trial name
- NCT01471990
- Testing
- Pituitary Adenylate Cyclase-Activating Polypeptide-38, Vasoactive Intestinal Peptide
- Where
- Denmark
- Volunteers
- 24 people
- Sponsor
- Glostrup University Hospital, Copenhagen
Obesity, Healthy
Sex Disparities in Hypoxic Sympatholysis and Impact of Obesity
Patients with sleep apnea are at increased risk of developing cardiovascular disease - with women at potentially greater risk than men.
- Conditions
- Obesity, Healthy, Vasoconstriction, Vasodilation
- Trial name
- NCT04436731
- Testing
- Cold Pressor Test
- Where
- United States
- Volunteers
- 73 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Vasodilation, Hypoxia
Sex-related Differences in Sympathetic Vascular Transduction in the Setting of Hypoxemia
The purpose of this project is to identify sex-related differences in the effect of hypoxia on sympathetic vascular transduction.
- Trial name
- NCT05256069
- Testing
- Propranolol Pill
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Liver, Cirrhosis
Echocardiographic Assessment of Intrapulmonary Vasodilatation: Agitated Saline Versus Polygeline
The purpose of the study is to evaluate agitated saline versus polygeline for detection of intrapulmonary vasodilatation in patients with cirrhosis.
- Trial name
- NCT00343122
- Testing
- echocardiography for intrapulmonary vasodilatation
- Where
- Austria
- Volunteers
- 100 people
- Sponsor
- Medical University of Vienna
Healthy
Measurement of the Eye's Blood Vessels Using the Dynamic Vessel Analyzer (DVA)
The purpose of this research study is examine the response of the blood vessels in the eye to a light flicker stimulus using the Dynamic Vessel Analyzer (DVA) on two separate days in healthy individuals.
- Trial name
- NCT00783029
- Where
- United States
- Volunteers
- 87 people, healthy volunteers welcome
- Sponsor
- Penn State University
Peripheral Vascular Disease
Lower Extremity Regional Anesthesia and Infrainguinal Bypass Grafting
In this investigation, the investigators will attempt to demonstrate that patients who have received nerve blocks (regional anesthesia) prior to open surgical vascular bypass of the lower extremities (infrainguinal bypass…
- Trial name
- NCT01803165
- Testing
- Single shot femoral and sciatic nerve block
- Sponsor
- University of Nebraska
C.Surgical Procedure, Cardiac
Steroids and Microcirculation In Cardiac Surgery
Cardiac surgery is sometimes associated with organ dysfunction of variable severity (renal insufficiency, cognitive decline, arrhythmias, ARDS).
- Trial name
- SICS (NCT02798068)
- Where
- Belgium
- Volunteers
- 40 people
- Sponsor
- Erasme University Hospital
Cardiovascular Disease
The STRETCH Study: Distensibility on Endothelial-Dependent Vasoreactivity in Subjects With Systolic Hypertension
The primary objective of the double-blind segment is to compare effects of alagebrium vs placebo on change from baseline in endothelial function, as assessed by flow-mediated vasodilation (FMD).
- Trial name
- NCT00302250
- Testing
- ALT-711 (alagebrium chloride)
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- Synvista Therapeutics, Inc
Sleep Apnea, Healthy
Reflex Responses to Intermittent Hypoxia in Humans: Mechanisms and Consequences
The overall goal of this project is to better understand the effect of intermittent hypoxia (IH) on sympathetic neuronal discharge patterns in humans, as well as mechanisms that mediate persistent sympathoexcitation with IH.
- Conditions
- Sleep Apnea, Healthy, Vasoconstriction, Vasodilation
- Trial name
- NCT05146089
- Testing
- Hypoxic exposure, modified Oxford test, Oral Bosentan 62.5 mg
- Where
- 2 sites in United States
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
General Anesthesia
Vasodilation Effect of Inhalational Anesthetics
Previous studies on animals suggest that inhalational anesthetics can reduce vascular tension in vitro resulting in vasodilation and decrease in blood pressure.
- Trial name
- VEFIHA (NCT00815269)
- Testing
- Halothane, Isoflurane, Sevoflurane
- Where
- China
- Volunteers
- 300 people
- Sponsor
- Nanjing Medical University
Spinal Cord Injuries, Endothelial Dysfunction
Endothelial Dysfunction After SCI
This study plans to learn how endothelial cells, single cell lining of blood vessels may be dysfunctional after a spinal cord injury.
- Trial name
- EDASCI (NCT07227727)
- Testing
- Intra-arterial Infusion of Vasoactive Agents, Intra-arterial Vitamin C Infusion, Blood Sampling
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Craig Hospital
Hyperlipidemias, Hypertension
The Effect of Farlong® NotoGinseng™ (Ginseng Plus®) on Cholesterol and Blood Pressure
In this randomized, placebo-controlled, double-blind parallel study in human participants with elevated LDL-C and elevated BP described here, the clinical benefits of Farlong NotoGinseng™ (Farlong Ginseng Plus® Panax Notoginseng…
- Trial name
- NCT04069715
- Testing
- Farlong NotoGinseng™ (Farlong Ginseng Plus® Panax Notoginseng extract)
- Volunteers
- 95 people, healthy volunteers welcome
- Sponsor
- LongStar HealthPro, Inc. DBA Farlong Pharmaceutical
Vasodilatory Hypotension During or After Cardiac Surgery
ANG-First Trial (Angiotensin II as First-Line Vasopressor Therapy in Cardiac Surgery)
The purpose of this research is to evaluate the use of Angiotensin II in patients with low blood pressure post-surgery. Your information will be collected for 28 days post the procedure and initiation of the study drug to assess…
- Trial name
- NCT06487585
- Testing
- Angiotensin II
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Maryland St. Joseph Medical Center
Cardiac Catheterization, Spasm
Topical Radial Artery Vasodilation
The aim of the study is to facilitate radial artery access for cardiac catheterization. The investigators hypothesize that topical nitroglycerin and lidocaine will reduce radial artery spasm.
- Trial name
- NCT01155167
- Testing
- Nitroglycerin and lidocaine
- Where
- United States
- Volunteers
- 86 people
- Sponsor
- University of California, San Francisco
Vascular Stiffness, Vasodilation
Effects of Betalains on Cardiovascular Health and Quality of Life
The goal of this randomized, double-blind, placebo-controlled, cross-over trial is to investigate the effects of beetroot-derived betalains on cardiovascular health, sleep and quality of life in healthy middle-aged individuals.
- Conditions
- Vascular Stiffness, Vasodilation, Sleep, Quality of Life
- Trial name
- NCT06117007
- Testing
- Betalains
- Where
- United Kingdom
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- King's College London
Peripheral Arterial Disease
Platelets Induced Vasodilation, in Vitro and in Vivo Study
The aim of the study is to show the implication of platelets in vasodilation using in vivo and in vitro analysis and to compare the effects of placebo, aspirin and Clopidogrel in this interaction platelets/vessels.
- Trial name
- NCT00152646
- Where
- France
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University Hospital, Angers
Metabolic Syndrome X
Mechanisms of Cerebrovascular Control
The objective of this study is to identify insulin-specific cerebral blood flow (CBF) control mechanisms, and establish cerebrovascular responsive baseline in younger (18-45 yrs) metabolic syndrome adults (MetSyn) who are at…
- Trial name
- NCT02936687
- Testing
- NOS Inhibition, ET-1 Inhibition, 3 Tesla MRI
- Where
- United States
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Acute Coronary Syndrome
Vascular Healing of DES at 3 Months
The purpose of this study is to compare vascular healing of the stented segment after deployment of new PRO-Kinetic drug eluting stent and Endeavor Resolute zotarolimus-eluting stent in patients with acute coronary syndromes…
- Trial name
- HAT-TRICK-OCT (NCT01391871)
- Testing
- OCT, Transthoracic echocardiography CFR measurement
- Where
- 2 sites in Finland
- Volunteers
- 46 people
- Sponsor
- University of Turku
Obesity, Vasodilation
Sex Disparities in Hypoxic Vasodilation and Impact of Obesity
The purpose of this project is to examine key mechanisms contributing to sex-differences in hypoxic vasodilation and the impact of obesity, with particular emphasis on the sympathetic nervous system.
- Conditions
- Obesity, Vasodilation, Healthy
- Trial name
- NCT05219799
- Testing
- Propranolol Hydrochloride, Isoproterenol, Phentolamine Mesylate
- Where
- United States
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Intervention, Transradial
A Study of Structure and Function of Radial Artery After Transradial Coronary Intervention
Several approaches have been proposed to reduce the risk of RAO, including anticoagulation, immediate postprocedural sheath removal, and a small sheath/radial artery ratio.
- Trial name
- NCT02831322
- Testing
- Percutaneous coronary intervention
- Where
- China
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- The First Hospital of Qinhuangdao