Clinical trials: Vasodilation
Aging, Menopause
Impact of Early Aging and Menopause on the Vascular Responses to Hypoxia
The purpose of this study is to examine hypoxic vasodilation and the role of beta-adrenergic receptors in younger premenopausal, perimenopausal, and older postmenopausal women.
- Conditions
- Aging, Menopause, Hypoxia, Vasodilation
- Trial name
- NCT06417177
- Testing
- Propranolol, Gemtesa
- Where
- United States
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
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
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
Alcohol Drinking, Binge Drinking
Reducing Blood Pressure in Mid-life Adult Binge Drinkers
This study has two phases: Phase 1 is to examine blood pressure, microvascular function, and sympathetic nerve activity in mid-life adult binge drinkers vs. alcohol abstainers/moderate drinkers.
- Conditions
- Alcohol Drinking, Binge Drinking, Blood Pressure, Alcohol Abstinence
- Trial name
- NCT05522075
- Testing
- Exercise Training, Alcohol Abstinence Intervention
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- The University of Texas at Arlington
Perimenopause, Vasodilation
Impact of Estradiol on Endothelial Function in Peri-Menopausal Women
The purpose of this study is to identify the impact of estradiol (E2) on the mechanisms that regulate vascular endothelial function in peri-menopausal (PERI) women.
- Conditions
- Perimenopause, Vasodilation, Estrogen
- Trial name
- NCT04255160
- Testing
- Estradiol (mylan or vivelle dot patch)
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Delaware
Vasodilation, Exercise
Acute Effect of Polyphenols Supplementation on Endothelial Function and Exercise Related Markers, in Physically Active Healthy Volunteers.
To evaluate the effect of acute polyphenols supplementation on vasodilation and related markers along with exercise related markers (notably performance, respiratory exchanges, perceived exertion), before, during and after a…
- Conditions
- Vasodilation, Exercise, Healthy Adults
- Trial name
- PolypOxy (NCT07518758)
- Testing
- Oral administration
- Where
- France
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Nexira
Internal Mammary Artery Syndrome, Vasodilation
Effect of Topically-applied Milrinone or Nitroglycerin on Internal Mammary Artery Free Flow
Forty-six consecutive patients undergoing elective primary coronary artery bypass grafting were enrolled. After the left IMA was harvested, free flow was measured under controlled hemodynamic conditions before any intervention…
- Trial name
- NCT06301880
- Testing
- The topical application of a vasodilator on the LIMA graft
- Where
- Syria
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Damascus University
Vasoconstriction, Vasodilation
Sympathetic Neurovascular Transduction: Role of Adrenergic Receptors and Sex Differences
The main purpose of this interventional study is to examine differences in resting blood pressure control between healthy males and females. The main questions it aims to answer are: 1.
- Trial name
- STARS (NCT05997732)
- Testing
- Phenylephrine Hydrochloride, Isoproterenol Hydrochloride, Norepinephrine Bitartrate
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Healthy, Vasodilation
Impact of Intranasal Insulin on Sympathetic Activity and Cerebral Vasodilation
The purpose of this project is to examine the impact of increases in brain insulin on sympathetic nervous system activity, as well as peripheral and cerebral blood flow in humans.
- Conditions
- Healthy, Vasodilation, Insulin Resistance, Autonomic Dysfunction
- Trial name
- NCT05153395
- Testing
- Carbon dioxide breathing, Neurovascular Coupling, Human insulin
- Where
- United States
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Exercise, Blood Pressure
Effects of Lentil Protein Hydrolysate on Blood Pressure Control, Vascular Function and Exercise Performance
Examining the safety and tolerability of Lentil Protein Hydrolysate in healthy males and females whilst exploring the effects of a dose range on blood pressure control and vascular function and exercise performance
- Conditions
- Exercise, Blood Pressure, Vasodilation, Vascular Function in Healthy Volunteers
- Trial name
- NCT06894875
- Testing
- Lentil protein hydrolysate
- Where
- Australia
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Nuritas Ltd
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
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
Vasodilation, Arterial Stiffness
Targeting ER Stress in Vascular Dysfunction
Aging and obesity are both risk factors for cardiovascular disease (CVD). One process that links both of these conditions to CVD is vascular dysfunction.
- Trial name
- NCT04001647
- Testing
- Acetylcholine, Sodium Nitroprusside, Ascorbic Acid
- Where
- United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Colorado State University
Cardiovascular Diseases, Blood Pressure Disorders
Effect of Korean Red Ginseng Extract on Blood Flow in Healthy Adults
The objectives of this clinical trial are to 1) determine the effect of the TP compared to placebo on blood flow and platelet aggregation, 2) to determine the effect of the TP on cardiovascular health compared to a placebo and 3)…
- Conditions
- Cardiovascular Diseases, Blood Pressure Disorders, Vasodilation, Platelet Aggregation
- Trial name
- NCT06236243
- Testing
- Korean Red Ginseng Extract Powder 120 mg/tablet, Korean Red Ginseng Extract Powder 500 mg/tablet
- Where
- United States
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- Korea Ginseng Corporation
Vasodilation, Vasoconstriction
Sex Differences in Sympathetic Vascular Reactivity at High Altitude
This study aims to investigate sex differences in blood pressure control associated with exposure to acute hypoxia (low oxygen), and short term acclimatization to hypoxia at high altitude.
- Trial name
- NCT05525416
- Testing
- Sodium Nitroprusside, Phenylephrine Hydrochloride, Norepinephrine
- Where
- 2 sites in Canada
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Vasodilation, Oral Soft Tissue Conditions
Investigation of Endothelium-dependent Vasodilation in Human Gingiva
The first aim of this study is to create a cumulative dose-response curve for acetylcholine in men (low serum estrogen levels) to determine the lowest concentration with which we can induce a maximal vasodilation effect on the…
- Trial name
- NCT06454084
- Testing
- Acetylcholine Chloride
- Where
- Hungary
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Semmelweis University
Blood Biomarkers, Vasodilation
The Role of Eicosanoids in the Cardiovascular Actions of Inhaled Nanoparticles
Nanoparticles (NPs) are minute pieces of material to which we are exposed every day in the air we breathe. Some are naturally occurring and have no impact on health, whereas others are produced from urban air pollution and can…
- Conditions
- Blood Biomarkers, Vasodilation, Blood Clotting, Lung Function
- Trial name
- ECOARM (NCT03659864)
- Testing
- diesel exhaust particulate, carbon nanoparticles, small graphene oxide
- Where
- United Kingdom
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
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
Vasodilation, Diabetes Mellitus, Type 2
Impact of Regional Vibration Application and Flow Mediated Dilation on Brachial Artery Hemodynamics
Application of vibration has been previously shown to affect tissue perfusion and utilized in different branches of medicine. Little is known about the acute impact of vibration application on peripheral artery hemodynamics.
- Trial name
- VMD (NCT05492071)
- Testing
- Local Vibration Application Following Flow Mediated Dilation, Flow mediated dilation
- Where
- Turkey (Türkiye)
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Istanbul University
Vasodilation, Vasoconstriction
Sex Differences in Sympathetic Activity and Vascular Reactivity During Acute and Chronic Hypoxia.
This study aims to investigate sex differences in blood pressure control associated with exposure to acute hypoxia (low oxygen), and short term acclimatization to hypoxia at high altitude.
- Trial name
- NCT05001048
- Testing
- Phenylephrine Hydrochloride, Cold Pressor Test, Isocapnic Acute Hypoxia
- Where
- 2 sites in Canada
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Alberta