Clinical trials: Vascular Dysfunction
Dementia, Alzheimer Disease
The Healthy Patterns Sleep Study
The Healthy Patterns Study intervention is a home-based activity intervention designed to improve symptoms of circadian rhythm disorders (CRD) and quality of life (QOL) in home-dwelling persons with dementia.
- Conditions
- Dementia, Alzheimer Disease, Circadian Rhythm Disorders, Circadian Rhythm Sleep Disorder
- Trial name
- NCT03682185
- Testing
- Attention-Control Condition, Timed Activity Intervention
- Where
- United States
- Volunteers
- 421 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
Endothelial Dysfunction, Aging
Passive Mobilization and Vascular Function
With aging, vascular function (VF) declines. Inactivity and sedentary life style have been shown to contribute to the worsening of VF.
- Conditions
- Endothelial Dysfunction, Aging, Bed Rest
- Trial name
- NCT03087643
- Testing
- Passive mobilization - PM
- Where
- 3 sites in Italy
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Universita di Verona
Aging, Arterial Stiffness
Inorganic Nitrate Supplementation on Cerebrovascular Aging and Arterial Stiffness Study
This study investigates the effect of dietary inorganic nitrate supplementation on 1) large elastic artery stiffness and hemodynamics and 2) cerebrovascular function in middle-aged and older adults.
- Conditions
- Aging, Arterial Stiffness, Endothelial Dysfunction, Hypertension
- Trial name
- INCA (NCT03617302)
- Testing
- Experimental: Nitrate-containing
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Gary L. Pierce, PhD
Endothelial Dysfunction
Impact of Smoking Cessation and γ-Tocopherol to Restore Vascular Endothelial Function
Cigarette smoking is a significant risk factor for cardiovascular disease (CVD) and is the leading cause of premature mortality in the US.
- Trial name
- NCT01314443
- Testing
- Nicotine Replacement Therapy (NRT), Gamma-Tocopherol, Smoking cessation
- Where
- United States
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- University of Connecticut
Hyperglycemia, Cardiovascular Disease
Green Tea Confections For Managing Postprandial Hyperglycemia-Induced Vascular Endothelial Dysfunction
The objective of this study is to formulate and validate a green tea confection (i.e. "gummy" candy) as a strategy to attenuate postprandial hyperglycemia-induced impairments in vascular function.
- Trial name
- NCT01857258
- Testing
- Green Tea Concentrate
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Vascular Stiffness, Endothelial Dysfunction
Targeting Inflammation to Treat Cardiovascular Aging
Cardiovascular disease (CVD) is the leading cause of morbidity and mortality in the United States with older age being a primary risk factor.
- Conditions
- Vascular Stiffness, Endothelial Dysfunction, Diastolic Dysfunction
- Trial name
- TIVA (NCT01775865)
- Testing
- Salsalate
- Where
- United States
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- Gary L. Pierce
Cognitive Impairment, Executive Dysfunction
Vascular Mechanisms for the Effects of Loss of Ovarian Hormone Function on Cognition in Women
Complaints about memory and thinking are common in women as they go through menopause and estrogen levels fall. The ovarian hormone estrogen is important for supporting normal cognitive function, and changes in brain activity and…
- Conditions
- Cognitive Impairment, Executive Dysfunction, Endothelial Dysfunction, Cardiovascular Disease
- Trial name
- NCT02122198
- Testing
- Leuprolide acetate, Estradiol, Medroxyprogesterone
- Where
- 2 sites in United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Type 2 Diabetes, Coronary Heart Disease
Myocardial Dysfunction in Type 2 Diabetes Mellitus (T2DM)
The purpose of this study is to examine the existence of heart abnormalities in patients with diabetes and the effect of pioglitazone in correcting these abnormalities.
- Trial name
- NCT01588470
- Testing
- pioglitazone
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- The University of Texas Health Science Center at San Antonio
Hypertension, Diabetes
Free Fatty Acids-Induced Hypertension in Obese Subjects (Aim #2)
The purpose of this study is to see if salsalate, an Nuclear factor-kappaB (NF-κB) mediated inflammation inhibitor, or carvedilol, an α- and β-blocker, will protect against free fatty acid induced hypertension, insulin…
- Trial name
- FFAADA (NCT02406586)
- Testing
- Salsalate, Carvedilol, Intralipid 20%
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Emory University
Obesity, Prehypertension
Vascular Dysfunction in Human Obesity Hypertension
The purpose of the study is to test the effects of blocking sympathetic nerve activity with a drug called clonidine on blood vessel function and muscle nerve activity in adults who are obese and have high blood pressure.
- Conditions
- Obesity, Prehypertension, Hypertension
- Trial name
- VANISH (NCT01983462)
- Testing
- Clonidine, Hydrochlorothiazide
- Where
- United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Gary L. Pierce
Androgen Deprivation Therapy, Prostate Cancer
Contributions to Hypertension With Androgen Deprivation Therapy
This study plans to learn more about contributors to high blood pressure in men who undergo androgen deprivation therapy (ADT) to treat prostate cancer.
- Conditions
- Androgen Deprivation Therapy, Prostate Cancer, Hypertension, Autonomic Dysfunction
- Trial name
- ARCH (NCT05700903)
- Testing
- Gonadotropin Releasing Hormone Agonists (GNRH), Androgen receptor (AR) inhibitor
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Aging, Vascular Endothelium
Vascular Dysfunction During Physical Inactivity
Prolonged periods of reduced activity are associated with decreased vascular function and muscle atrophy. Physical inactivity due to a sedentary lifestyle or acute hospitalization is also associated with impaired recovery…
- Conditions
- Aging, Vascular Endothelium, Skeletal Muscle
- Trial name
- NCT04872998
- Testing
- Step Count Reduction
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Utah
Endothelial Dysfunction, Biochemical Markers
Acute Effects of E-Cigarette Aerosol Inhalation
This study comprises a portion of a larger study designed to compare results of vascular function in non-smokers to vascular function in healthy smokers chronically exposed to nicotinized electronic cigarette aerosol versus…
- Trial name
- NCT03479203
- Testing
- Electronic Cigarette Aerosol
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
Diabetes, Hypertension
FFA Hypertension and Inflammation in Lean and Obese Subjects
Although a large number of obese patients develop high blood pressure, the cause is unknown. The purpose of this study is to look at the effect of high fatty acids (a type of fat) in the development of high blood pressure in…
- Conditions
- Diabetes, Hypertension, Obesity
- Trial name
- FFAADA (NCT00721617)
- Testing
- Intralipid 20%, Normal Saline, Oral fat load
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Emory University
Heart Diseases, Coronary Disease
CES1 Carriers in the PAPI Study
This study builds, in part, upon preliminary results generated as part of the Pharmacogenomics Anti-Platelet Intervention (PAPI) Study (NCT00799396).
- Conditions
- Heart Diseases, Coronary Disease, Coronary Artery Disease, Cardiovascular Diseases
- Trial name
- NCT03188705
- Testing
- Clopidogrel, Aspirin
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Myocardial Infarction, Thrombosis
CES1 Crossover Trial of Clopidogrel and Ticagrelor
The purpose of this investigation is to evaluate when genetic variation in the carboxylesterase 1 (CES1) gene influences antiplatelet therapy response, as assessed by ex vivo platelet aggregometry, in healthy participants treated…
- Conditions
- Myocardial Infarction, Thrombosis, Platelet Dysfunction
- Trial name
- NCT03161678
- Testing
- Clopidogrel, Ticagrelor
- Where
- United States
- Volunteers
- 111 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
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
Vasculogenic Erectile Dysfunction
Intracavernosal Injection of Botulinum Toxin Type A in the Treatment of Vascular Erectile Dysfunction
Evidence has been arising that Botulinum toxin injections can relax smooth muscles fibers in the treatment of obesity and hyperactive bladder.
- Trial name
- NCT02584686
- Testing
- Botulinum Toxin Type A, Normal Saline
- Where
- Egypt
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Cairo University
Alzheimer Disease, Dementia
Innovations in Dementia Empowerment and Action
The lack of efficacious research-based interventions for such vulnerable older adults with Alzheimer's disease and related dementias (AD/RD) and their caregivers (CGs) is a significant public health problem.
- Conditions
- Alzheimer Disease, Dementia, Mild Cognitive Impairment, Parkinson Disease Dementia
- Trial name
- IDEA (NCT03550131)
- Testing
- Innovations in Dementia Empowerment and Action (IDEA), Reducing Disabilities in Alzheimer's Disease (RDAD)
- Where
- United States
- Volunteers
- 322 people, healthy volunteers welcome
- Sponsor
- University of Washington
Vascular Function, Racial Disparity
Vascular Dysfunction in Black Individuals: Roles of Nitric Oxide and Endothelin-1
The research aims of this proposal are: Specific Aim 1: To test whether an increase in nitric oxide signaling can increase vasodilator responses in young Black individuals.
- Trial name
- UMMC_Pilot (NCT04770155)
- Testing
- Dietary Nitrates 400 mg, L-citrulline 3 g, Sildenafil 100 mg
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Mississippi Medical Center