Clinical trials: Vascular Reactivity
Platelet Reactivity
Low-dose of Ticagrelor and Standard-dose Clopidogrel on Platelet Effects in Chinese Patients With Stable CAD.
Ticagrelor has been demonstrated to provide a more rapid and more powerful inhibition of platelet aggregation compared with clopidogrel in coronary artery disease (CAD) patients.
- Trial name
- NCT03679091
- Testing
- low-dose ticagrelor, Clopidogrel
- Where
- China
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- First Affiliated Hospital of Harbin Medical University
Hypertension
Does Ultraviolet Irradiation Reduce Platelet Reactivity and Improve Coronary Microvascular Function in Man?
Endothelium derived nitric oxide (NO) regulates vascular tone and blood pressure in man. NO also inhibits platelet aggregation and mediates a variety of beneficial anti-inflammatory and repair mechanisms.
- Trial name
- NCT01785511
- Testing
- UVA Radiation
- Where
- United Kingdom
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Diabetes Mellitus, Vascular Complications
Peripheral Vascular REactivity and Muscular Oxygenation in Diabetes Mellitus
Oxygen is required for an optimal muscle function. In patients with diabetes mellitus, hyperglycemia can cause vascular complications.
- Conditions
- Diabetes Mellitus, Vascular Complications, Mitochondrial Diseases
- Trial name
- PREMOD (NCT04226820)
- Testing
- examination: blood pressure assessment, examination: Flow Mediated Dilatation (FMD)-test, examination: handgrip exercise test with Near infrared spectroscopy (NIRS)-monitoring
- Where
- Belgium
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- University Ghent
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
Imparied Retinal Vascular Reactivity, Healthy Subjects
Effect of Retaron® on Oxygen Induced Retinal Vasoconstriction in LPS Induced Inflammatory Model in Humans
Oxidative stress has been implicated to play a pathogenic role in many disease processes, especially in age-related disorders such as age-related macular degeneration.
- Trial name
- NCT02221089
- Testing
- Escherichia coli Endotoxin, Retaron®
- Where
- Austria
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Pregnant, Sedentary Lifestyle
Physical Activity and Vascular Health During Pregnancy
The aim of this study is to determine the effect of aerobic exercise on maternal and offspring vascular health.
- Trial name
- NCT03079258
- Testing
- Exercise
- Where
- United Kingdom
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Liverpool John Moores University
Incidence and Types of Systemic Reactions Occurring After Spinal Steroid Injection in a Large Population
Incidence of Various Types of Systemic Reactions Related to Spinal Steroid Injection: A Prospective Study
Many systemic reactions occur commonly after spinal steroid injections, especially in patients, and may be associated with underlying disease, such as hypertension and diabetes mellitus, as well as steroid dose and repetition of…
- Trial name
- NCT01756196
- Testing
- Spinal Steroid Injection
- Where
- South Korea
- Volunteers
- 997 people, healthy volunteers welcome
- Sponsor
- Seoul National University Bundang Hospital
Vascular Formation
Effect of Regular Exercise on Vascular Function and Cardiovascular Risk in a Sedentary Work Force
This study will evaluate the effects of NHLBI's employee exercise program, Keep the Beat, on blood vessel function. Damage to blood vessels can cause narrowing of the vessels, resulting in reduced blood flow to parts of the body…
- Trial name
- NCT00246883
- Testing
- Exercise
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Critical Limb Ischemia
Aspirin and Clopidogrel Reactivity in Patients With Critical Limb Ischemia (CLI)
Critical Limb Ischemia (CLI) is defined as limb pain that occurs at rest, or impending limb loss that is caused by severe compromise of blood flow to the affected extremity.
- Trial name
- NCT02094755
- Testing
- Blood draw only
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Southern California
Vascular Stiffness, Hypotension on Induction
The Relationship Between BCM, Arterial Stiffness and Hemodynamic Instability During Induction of General Anesthesia
Arterial hypotension during induction of general anesthesia is a risk factor for developing postoperative cardiovascular complications.
- Conditions
- Vascular Stiffness, Hypotension on Induction, Anesthesia; Reaction
- Trial name
- NCT03237429
- Testing
- bioimpedance spectroscopy
- Where
- Romania
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Grigore T. Popa University of Medicine and Pharmacy
Metabolic Syndrome
Acute Effects of Oral Carbohydrate and Fat Loads on Systemic Microvascular Endothelial Function in Healthy Individuals.
The present study was designed to evaluate vascular endothelial dysfunction resulting from the oral ingestion of high loads of sugar and fat meals in healthy individuals.
- Trial name
- NCT03515460
- Testing
- sugar oral load, fat oral load, sugar and fat oral load
- Where
- Brazil
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- National Institute of Cardiology, Laranjeiras, Brazil
Sickle Cell Disease, Cerebral Stroke
Cerebral Oxygen Metabolism in Children
The purpose of this research study is to better understand how blood flow and metabolism change can influence brain development in the early decades of life.
- Trial name
- COMIC (NCT04157179)
- Testing
- Carbon Dioxide
- Where
- United States
- Volunteers
- 350 people, healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
Overweight
The Use of Diffuse Optical Spectroscopy to Characterize in Response to Weight-Loss Intervention
The first step in any clinical intervention against obesity involves sustained lifestyle changes. Researcher can use these strategies to beneficial the effects of weight and on cardiovascular risk.
- Trial name
- NCT02146885
- Testing
- Weight Control
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- University of California, Irvine
Child, Only, Essential Hypertension
Juvenile Essential Arterial Hypertension and Vascular Function
The main goal of this study is to investigate the association of the juvenile essential arterial hypertension with systemic micro- and macrovascular reactivity and cerebral vascular function, and to examine the potential impact…
- Trial name
- NCT05109013
- Where
- Croatia
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Josip Juraj Strossmayer University of Osijek
Stress, Job, PTSD
The Sequestration of Holistic Stress Management Techniques for Adults
This remote study is intended to assist the population with access to cost-effective pastoral counseling for stress management in the workplace and every day life.
- Conditions
- Stress, Job, PTSD, Hypervigilance, Hyperthyroidism
- Trial name
- NCT06098755
- Testing
- Holistic Medicine (HM)
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Goddess Zena I. Jones
Healthy Subjects
A Human Trial to Evaluate the Effects of Chungkookjang on Histamine-induced Wheal Size in Healthy Subjects
The investigators investigate the effect of Chungkookjang on histamine-induced skin reaction in a double-blind, randomized, placebo-controlled, human trial
- Trial name
- NCT01402141
- Testing
- Chungkookjang
- Where
- South Korea
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Chonbuk National University Hospital
Cerebrovascular Disease, Stroke
Remote Ischemic Limb Preconditioning In Healthy Volunteers
The investigators would like to determine if remote ischemic leg preconditioning in healthy volunteers improves cerebral vasomotor reactivity as measured by breath holding and transcranial doppler vasomotor reactivity.
- Trial name
- NCT02553655
- Testing
- 4x 5min Limb Preconditioning, 3x 10min Limb Preconditioning
- Where
- United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- University of Miami
Stable Angina
Downstream Molecular Signals of P2Y12 Receptors in Hyporeactive Patients Under Clopidogrel Treatment A Possible Mechanism of HOTPR(High On-Treatment Platelet Reactivity)
The investigators designed the following experiment to observe the pattern of administration in vitro, which can be completely excluded liver enzyme cytochrome P450 metabolism under the influence and observe the relevant P2Y12…
- Trial name
- NCT03190005
- Testing
- clopidogrel
- Where
- Taiwan
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Taipei City Hospital
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
Stroke
A Mobile Brain/Body Imaging Platform for the Assessment and Optimization of Post-stroke Overground Robotic Gait Treatments
The study aims to identify neural biomarkers that can be used to monitor the recovery of locomotion and movement of post-stroke patients, both in natural settings and with enriched treatment using robotic device.
- Trial name
- COBI (NCT07510633)
- Testing
- overground wearable robotic device
- Where
- Italy
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Dr. Franco Molteni