Clinical trials: Vascular Reactivity
Cardiovascular Diseases, Glucose Metabolism Disorders
Effects of Hazelnuts and Cocoa on Metabolic Parameters and Vascular Reactivity
This study aims to assess the effects of hazelnuts, cocoa, and the combination of both on vascular reactivity and metabolic profile.
- Trial name
- NCT02845622
- Testing
- Hazelnut, Cocoa, No hazelnuts / No cocoa
- Where
- Italy
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Ospedale San Donato
Healthy Subjects
Investigation of Vascular Relaxing Effects of Candesartan and Pioglitazone.
The study is designed to test the hypothesis in healthy subjects that candesartan and pioglitazone provide additional vascular relaxing or modulating effects in addition to their blood-pressure and blood glucose level reducing…
- Trial name
- NCT00154037
- Testing
- Pioglitazone (drug) and/or candesartan (drug)
- Where
- Germany
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Technische Universität Dresden
Mild Cognitive Impairment
Evaluate the Effect of Atorvastatin on Cerebrovascular Reactivity in Mild Cognitive Impairment (MCI)
The purpose of this study is to evaluate the effect of atorvastatin on brain vessel reactivity and with it on blood flow in people with mild cognitive impairment.
- Trial name
- NCT04765137
- Testing
- Atorvastatin Oral Tablet
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Cardiovascular Diseases, Heart Diseases
Genetics of Cardiovascular Reactivity in Black Youth
To evaluate individual differences in cardiovascular responses to acute stress in Black adolescents.
- Conditions
- Cardiovascular Diseases, Heart Diseases, Hypertension
- Trial name
- NCT00064675
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- University of Tennessee
Arteriosclerosis, Acute Myocardial Infarction
Menopause Related Influences on Leukocyte Distribution, Monocyte Function and Platelet Reactivity
Women and men show marked differences in cardiovascular risk profile and outcome. Women experience fewer cardiovascular events than men before menopause, but this relationship seems to reverse at menopause.
- Conditions
- Arteriosclerosis, Acute Myocardial Infarction, Cardiovascular Events, Menopause
- Trial name
- NCT05985447
- Where
- Germany
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Heinrich-Heine University, Duesseldorf
Lower Limb Amputation Below Knee, Diabetes (DM)
Skin Temperature Perception and Prosthetic Thermoregulation
To protect against excessive body temperatures, local thermoregulatory mechanisms include temperature sensory nerves (responsive to warm or cool stimuli) and vasomotors (muscles that constrict or dilate blood vessels).
- Conditions
- Lower Limb Amputation Below Knee, Diabetes (DM), Skin Temperature Change, Vascular Reactivity
- Trial name
- NCT07215442
- Testing
- Warming stimulus starting at 30 C initial temperature, Warming stimulus starting at 32 C initial temperature, Warming stimulus starting at 34 C initial temperature
- Where
- United States
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- VA Puget Sound Health Care System
Contraception
Oral Versus Patch Hormonal Contraceptive Effects on Metabolism, Clotting, Inflammatory Factors and Vascular Reactivity
The purpose of this study is to compare the effects of oral versus patch administration of hormonal contraception on hormone sensitive proteins such as lipoproteins, clotting factors and inflammatory proteins as well as blood…
- Trial name
- NCT00439972
- Testing
- Ortho-Cyclen (R), Ortho Evra (R), extended use of Ortho Evra (R)
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University of Washington
Cardiovascular Diseases
AngioDefender Versus Brachial Artery Ultrasound Imaging
The objective of this study is to demonstrate that the investigational device, AngioDefender, is comparable to the established procedure referred to as 'brachial artery ultrasound imaging' in their abilities to quantify…
- Trial name
- NCT02468336
- Testing
- AngioDefender, Ultrasound
- Where
- 5 sites in United States, Canada
- Volunteers
- 171 people, healthy volunteers welcome
- Sponsor
- Everist Genomics, Inc
Hypercholesterolemia, Hypertension
Effects of Rosiglitazone on Blood Vessels in Patients With High Blood Pressure and High Cholesterol
Cells in the lining of blood vessels produce various substances that cause the vessels to dilate (relax) and constrict (tighten), thereby regulating blood flow.
- Trial name
- NCT00006071
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
COVID-19 Vaccine, Corona Virus Infection
Quantification of Binding and Neutralizing Antibody Levels in COVID-19 Vaccinated Health Care Workers Over 1 Year
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic presents a great challenge to global health. The first case was identified in December 2019 in Wuhan, China and since has infected nearly 100 million…
- Conditions
- COVID-19 Vaccine, Corona Virus Infection, Vaccine Adverse Reaction, Vaccine Response
- Trial name
- NCT04910971
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- LifeBridge Health
Aneurysm, Cerebral, Endovascular Procedures
Comparison of Two Different Antiplatelet Preparations for an Unruptured Intracranial Aneurysm
Perform a randomized comparison study of dual-antiplatelet (aspirin, prasugrel) and triple-antiplatelet (aspirin, clopidogrel, and cilostazol) preparation using P2Y12 assay in patients with high on-treatment platelet reactivity…
- Trial name
- NCT03581409
- Testing
- Aspirin, Prasugrel, Clopidogrel
- Where
- South Korea
- Volunteers
- 198 people, healthy volunteers welcome
- Sponsor
- Seoul National University Hospital
Fabry Disease
Pulsatility Index, Vasomotor Reactivity and Leukoencephalopathy in Fabry Patients
We hypothesize that Fabry disease - FD is associated with elevated vascular resistance induced by cerebral small-vessel disease, indicating increased distal resistance to blood flow.
- Trial name
- NCT04577170
- Testing
- Transcranial Doppler (TCD) and Transcranial Color-Coded Duplex (TCCD) ultrasonography
- Where
- Greece
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- National and Kapodistrian University of Athens
Blood Pressure
The Effect of Whey Protein Supplementation on Vascular and Cognitive Function in Older Adults
The "hardening of the arteries" observed with aging raises blood pressure and contributes to poor brain blood flow and loss of cognitive function (i.e. attention, memory, solving problems, making decisions).
- Trial name
- NCT01956994
- Testing
- Whey protein supplement, Carbohydrate supplement
- Where
- United States
- Volunteers
- 99 people, healthy volunteers welcome
- Sponsor
- Syracuse University
Cardiovascular Disease
The Effects of Alkalised Cocoa on Human Vascular Function
The primary propose of this study is to determine how processing, in particular alkalisation, alters the vascular effects of high-flavanols foods such as cocoa
- Trial name
- NCT01312584
- Testing
- Processed High-flavanol
- Where
- United Kingdom
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Reading
Vascular Reactivity, Serum Biomarkers
MRI and Biological Markers of Acute E-Cigarette Exposure in Smokers and Vapers
To examine vascular reactivity and inflammatory biomarkers via quantitative magnetic resonance imaging (MRI) and blood serum, respectively, in a crossover study where active vapers (electronic cigarette users) and smokers will…
- Trial name
- AeCE (NCT05271578)
- Testing
- Standardized Electronic Research Cigarette, Nicotine Research Cigarette
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
Normal-weight Obesity, BMI
Effects of Body Composition on Vascular Health in Females With a Healthy Body Weight
Most of the time, body weight is evaluated by looking at the ratio of your weight to your height. This measurement is called body mass index or BMI.
- Conditions
- Normal-weight Obesity, BMI, Stress
- Trial name
- NCT06818500
- Testing
- high-fat meal, Stress
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Ball State University
Coagulopathy, Blood Transfusion Complication
Thromboelastography Normal Reference Values in China Hunan Province
The purpose of this study was to establish the normal reference range of Thrombelastogram parameters in Hunan by a multicenter study, and to analyze the specificity of Thrombelastogram detection and the influence of gender, age…
- Trial name
- NCT03146455
- Testing
- no intervention
- Where
- China
- Volunteers
- 498 people, healthy volunteers welcome
- Sponsor
- The Third Xiangya Hospital of Central South University
Cystic Fibrosis, Endothelial Dysfunction
Vascular Health and Function in Cystic Fibrosis
The goal of this observational study is to learn whether blood vessel health and function differ between adults aged 40 years or older with cystic fibrosis (CF) who are taking CFTR modulator therapy and healthy adults of the same…
- Conditions
- Cystic Fibrosis, Endothelial Dysfunction, Cardiovascular Risk Factor
- Trial name
- CF-VHF (NCT07904325)
- Testing
- Non-invasive vascular, cerebrovascular and autonomic assessment
- Where
- United Kingdom
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Liverpool Heart and Chest Hospital NHS Foundation Trust
Healthy, Postmenopausal Women
Dried Cabernet Grapes and Cardiovascular Risk Markers
This study assesses the acute effects of dried Cabernet grape intake on vascular function and platelet reactivity in postmenopausal women.
- Trial name
- RZN (NCT03065166)
- Testing
- Raisin Treatment, Bagel Control
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
Obstetric Anesthesia Problems, Bupivacaine Adverse Reaction
Thoraco Lumbar Vertebral Length and Bupivacaine Dosage in C-Section
Our hypothesis is that the bupivacaine dose determined according to the thoracolumbar vertebral body length (VBL) is more effective in achieving a lower hypotension rate during spinal anesthesia for cesarean delivery than the…
- Trial name
- bupivacaine (NCT06869434)
- Testing
- Group VBL (Thoracolumbal vertebral body length) received 0.2 mg x VBL cm of %0.5 hyperbaric bupivacaine, Group FD (fixed dose) received a volume of 0.5% hyperbaric bupivacaine based on a dose calculated according to the patient's height 0.065 mg/cm, Group AD (adjusted dosage) got intrathecal heavy bupivacaine (0.5%) tailored to the patient's height and weight.
- Where
- Turkey (Türkiye)
- Volunteers
- 446 people, healthy volunteers welcome
- Sponsor
- TC Erciyes University