Clinical trials: Vascular Reactivity
Stroke
Observer Reactivity During Gait Measurements in a Clinical Setting
Observer reactivity, also known as the 'Hawthorne effect', can roughly be described as the alteration of behaviour as a consequence of observation or awareness of measurement.
- Trial name
- NCT05674162
- Testing
- Unobserved, Observed, Unobserved & Measured
- Where
- Netherlands
- Volunteers
- 20 people
- Sponsor
- Sint Maartenskliniek
Coronary Artery Disease
Effects of Ticagrelor Versus Prasugrel on Coronary Microcirculation in Patients Undergoing Elective Percutaneous Coronary Intervention: Results of the PROtecting MICROcirculation During Coronary Angioplasty (PROMICRO)-3 Randomised Study
Besides being at least as effective as prasugrel in inhibiting platelet aggregation, ticagrelor has been shown to have additional properties potentially affecting coronary microcirculation.
- Trial name
- PROMICRO-3 (NCT05643586)
- Testing
- Ticagrelor, Prasugrel
- Where
- Belgium
- Volunteers
- 50 people
- Sponsor
- Germano Di Sciascio
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
Acute Coronary Syndrome, HIV
EValuation of REsidual Platelet REactivity After Acute Coronary Syndrome (ST+/ST-) in HIV
Elevated on-treatment platelet reactivity is an independent risk factor of major adverse cardiovascular events following percutaneous coronary intervention or ACS.
- Trial name
- EVERE2ST-HIV (NCT02380391)
- Where
- France
- Volunteers
- 260 people
- Sponsor
- Saint Antoine University Hospital
Coronary Artery Disease, Platelet Reactivity
Pharmacodynamic Outcomes in CCS Patients Treated With an Individualized Treatment Strategy
Patients with Chronic Coronary Syndrome (CCS) undergoing with elective percutaneous coronary intervention (PCI) are treated with dual antiplatelet therapy (DAPT), consisting of aspirin combined with clopidogrel for 6 months.
- Trial name
- NCT05773989
- Testing
- CYP2C19 genotype guided P2Y12 monotherapy, Clopidogrel
- Where
- Netherlands
- Volunteers
- 88 people
- Sponsor
- St. Antonius Hospital
Acute Coronary Syndrome
Persistent Platelet Reactivity in Acute Coronary Syndrome
Study of persistent platelet reactivity during acute coronary syndrome. Patients are included at admission to the hospital. Platelet aggregation is evaluated by platelet function testing after blood sampling during…
- Trial name
- NCT02038309
- Where
- France
- Volunteers
- 106 people
- Sponsor
- Hopital Lariboisière
Hypertension
Evaluating Mechanisms of Blood Pressure Reduction Using Meditation in Hypertensive African Americans
High blood pressure is a common health problem among people in the United States. This study will compare the effectiveness of a meditation program versus a health education program at decreasing stress and lowering blood…
- Trial name
- HMEC (NCT00681200)
- Testing
- Enhanced health education, Transcendental Meditation program
- Where
- United States
- Volunteers
- 152 people
- Sponsor
- Maharishi International University
Chronic Kidney Diseases
miRNA in Chronic Kidney Diseases
Oxidative stress and endoplasmic reticulum (ER) stress play a key role in tubular damage in both acute kidney injury and chronic kidney disease (CKD).
- Trial name
- NCT06316284
- Where
- Croatia
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Josip Juraj Strossmayer University of Osijek
Post-menopause
Mental Stress Reactivity in Women With CMD
Coronary Microvascular Dysfunction (CMD) occurs when there are problems in the small blood vessels/arteries of the heart, resulting in persistent chest pain that affects women.
- Trial name
- NCT05401630
- Testing
- Study Procedures
- Where
- 4 sites in United States
- Volunteers
- 150 people
- Sponsor
- Emory University
Acute Coronary Syndrome
Therapy With High Clopidogrel Dose or Prasugrel Standard Dose Reduces the Platelet Reactivity in Patients With Genotype Variation RESET GENE Trial
Dual antiplatelet therapy with aspirin and Clopidogrel for at least one year is essential in patients following an acute coronary syndrome (ACS) or percutaneous coronary intervention (PCI) with drug eluting stent(s.
- Trial name
- RESET GENE (NCT01465828)
- Testing
- Clopidogrel, prasugrel
- Where
- 2 sites in Italy
- Volunteers
- 30 people
- Sponsor
- Gennaro Sardella
Deep Vein Thrombosis, Pulmonary Embolism
Impact of Pharmacists' Training on Oral Anticoagulant Counseling
This study evaluates the impact of community pharmacists' educational training on the nature and adequacy of counseling provided to patients on warfarin, an oral anticoagulant.
- Conditions
- Deep Vein Thrombosis, Pulmonary Embolism, Atrial Fibrillation
- Trial name
- NCT03999905
- Testing
- Counseling training
- Where
- Nigeria
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- University of Ibadan
Coronary Disease
Impact of Pumps on Internal Thoracic Arteries (IPITA)
Cardiopulmonary bypass (CPB) induces a systemic inflammatory response and affects the organ vascular bed. Experimentally, the lack of pulsatility alters myogenic tone of resistance arteries and increases the parietal inflammatory…
- Trial name
- IPITA (NCT04168853)
- Testing
- vascular reactivity of internal thoracic arteries
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University Hospital, Angers
Subarachnoid Hemorrhage, Aneurysmal, Delayed Cerebral Ischemia
Noninvasive CA Monitoring Validation and Autonomic Modulation in Aneurysmal Subarachnoid Hemorrhage
This is a two-component prospective study of adult aneurysmal subarachnoid hemorrhage (aSAH) patients admitted to the Neurosciences Intensive Care Unit (NSICU) at UT Southwestern Medical Center.
- Conditions
- Subarachnoid Hemorrhage, Aneurysmal, Delayed Cerebral Ischemia, Cerebral Vasospasm, Autonomic Nervous System Diseases
- Trial name
- NCT07577739
- Testing
- Right-Sided Cervical Sympathetic Block at C6, Transcutaneous Auricular Vagal Nerve Stimulation (taVNS)
- Where
- United States
- Volunteers
- 300 people
- Sponsor
- University of Texas Southwestern Medical Center
VV ECMO, Bleeding
Incidence of Bleeding, Thrombosis and Transfusion Requirements in ICU Patients With COVID-19 Supported With Veno-venous Extracorporeal Membrane Oxygenation
The investigators aim to assess the risk of bleeding and thrombo-embolic complications as well as benefit and harm of blood product transfusion and anticoagulation therapy in adult ICU patients with COVID-19 supported with V-V…
- Conditions
- VV ECMO, Bleeding, Thrombosis, Transfusion Adverse Reaction
- Trial name
- NCT07352072
- Where
- Denmark
- Volunteers
- 50 people
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Analgesia, Obstetrical, Postpartum Hemorrhage
Prospective Effect of Intravenous Ketorolac on Opioid Use, EBL and Complications Following Cesarean Delivery
In this randomized, double-blind control trial to evaluate the effect of ketorolac given at the time of cord clamp has on estimated blood loss and postcesarean pain control.
- Conditions
- Analgesia, Obstetrical, Postpartum Hemorrhage, Opioid Use, Nonsteroidals (NSAIDs)Toxicity
- Trial name
- NCT02509312
- Testing
- Ketorolac
- Where
- United States
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- University Hospitals Cleveland Medical Center
Dyslipidemia
A Study of Niaspan on Endothelium-Dependent and Endothelium-Independent Vascular Reactivity (0000-093)
A study to evaluate the inter- and intra subject variabilities of flow-mediated dilation (FMD) of brachial artery and nitroglycerin (GTN) induced dilation of brachial artery.
- Trial name
- NCT01104519
- Testing
- Niaspan
- Volunteers
- 12 people
- Sponsor
- Merck Sharp & Dohme LLC
Platelet Aggregation, Spontaneous, Vascular Thrombosis
The Effects of Dietary Erythritol on Platelet Reactivity and Vascular Inflammation
The purpose is to conduct a dietary intervention study in which human participants will consume beverages sweetened with erythritol or aspartame, each for 2 weeks, in a randomized crossover design
- Trial name
- EASI (NCT05967741)
- Testing
- Erythritol, Aspartame
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
ST Elevation Myocardial Infarction
Ticagrelor Versus Clopidogrel in Left Ventricular Remodeling After ST-segment Elevation Myocardial Infarction
The purpose of the study is to evaluate the novel role of ticagrelor to improve long-term LV remodeling following ST-segment elevation myocardial infarction.
- Trial name
- HEALING-AMI (NCT02224534)
- Testing
- Ticagrelor, Clopidogrel
- Where
- 12 sites in China, Singapore and 1 more
- Volunteers
- 326 people
- Sponsor
- Gyeongsang National University Hospital
Type 2 Inflammatory Disorders
Compassionate Use or Expanded Access of Dupilumab
Provide Compassionate Use or Expanded Access of Dupilumab
- Trial name
- NCT04776694
- Testing
- Dupilumab
- Sponsor
- Regeneron Pharmaceuticals
Coronary Artery Disease, Cardiac Rehabilitation
Weather Sensitivity and the Effects of Walking in Nature on Stress Response of Individuals With Coronary Artery Disease
The goal of this clinical trial is to investigate how walking in different environments affects the psychophysiological responses to the stress of individuals with coronary artery disease (CAD) according to their weather…
- Conditions
- Coronary Artery Disease, Cardiac Rehabilitation, Nature, Human, Stress Reaction
- Trial name
- SENSE_NATURE (NCT06139705)
- Testing
- Walking outdoor, Walking indoor
- Where
- Lithuania
- Volunteers
- 160 people
- Sponsor
- Lithuanian University of Health Sciences