Clinical trials: Coronary Circulation
Normal Healthy Volunteers Without Chronic Medical Conditions, Coronary Artery Disease
3D PET Myocardial Blood Flow and Rb82 Infusion Profiles
The investigators seek to test bolus infusions (50ml/min) vs. slow infusions (20 ml/min) of Rb-82 on metrics of coronary blood flow assessed on a modern 3D PET/CT.
- Conditions
- Normal Healthy Volunteers Without Chronic Medical Conditions, Coronary Artery Disease, Cardiac Risk Factors, Myocardial Infarction
- Trial name
- NCT05286593
- Testing
- Slow Infusion of Rubidium-82
- Where
- United States
- Volunteers
- 98 people, healthy volunteers welcome
- Sponsor
- Ochsner Health System
Non-Obstructive Coronary Atherosclerosis
Effect of Mental Stress on Myocardial Perfusion in Women
Mental stress-induced myocardial ischemia(MSIMI) has been recognized a significant clinical problem. Evidence has shown that individuals with MSIMI have 2 to 2.5 times higher risk to develop a major averse cardiovascular events…
- Trial name
- MS in women (NCT03982901)
- Testing
- Mental Stress Test
- Where
- China
- Volunteers
- 126 people, healthy volunteers welcome
- Sponsor
- Guangdong Provincial People's Hospital
Coronary Disease, Healthy
Study of Blood Flow in Heart Muscle
Blood flows to areas of the heart providing oxygen and fuel to the pumping muscle. Occasionally the arteries providing the fuel can become blocked. This occurs in coronary artery disease.
- Conditions
- Coronary Disease, Healthy, Hypertrophic Cardiomyopathy, Myocardial Ischemia
- Trial name
- NCT00001631
- Testing
- Magnetic resonance imaging
- Where
- United States
- Volunteers
- 249 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Exercise
Autonomical and Hemodynamic Repercussions on Excentric Resistance in Different Intensities With Blood Flow Restriction
Introduction: Studies on resistance training (RT) associated with blood flow restriction (BFR) have emerged as an alternative method of gaining strength and hypertrophy; however, the cardiovascular and autonomic repercussion of…
- Trial name
- NCT03942510
- Testing
- eccentric exercise with blood flow restriction
- Where
- Brazil
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Paulista University
Coronary Artery Disease, Coronary Microvascular Disease
Whole-Heart Myocardial Blood Flow Quantification Using MRI
This study hopes to provide significant technical improvement in a Myocardial Blood Flow (MBF) cardiac magnetic resonance (CMR) quantification technique to address challenges and technical limitations for MBF CMR.
- Trial name
- NCT03064295
- Testing
- Myocardial Perfusion Cardiac MRI., Contrast, Pharmacologic Stress Agent
- Where
- United States
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Cedars-Sinai Medical Center
Vascular Disease, Heart Disease
Effects of Urocortins on Forearm Arterial Blood Flow in Healthy Volunteers (Protocol 2)
Impairment of the heart's pumping capacity (heart failure) remains a major clinical problem with a poor prognosis and the search for novel treatments remains an important area of research.
- Trial name
- NCT01096693
- Testing
- Urocortin 2, Urocortin 3
- Where
- United Kingdom
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Cardiac
Blood Flow Restriction Resistance Exercise and Cardiac Cycle Dynamics
Blood flow restriction resistance exercise uses partial vascular occlusion of a limb during low weight resistance exercises to stimulate muscle strengthening and growth. This is commonly used during rehabilitation from an injury.
- Trial name
- NCT07344740
- Testing
- Blood flow restriction resistance exercise
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Montclair State University
Transposition Great Arteries, Executive Dysfunction
The Boston Circulatory Arrest Study: Antecedents and Correlates of Well-Being in Adults With Congenital Heart Disease
In the landmark Boston Circulatory Arrest Study, neurologic and developmental status was measured following infant heart surgery and then prospectively at ages 1, 2.5, 4, 8, and 16 years, with findings of significant…
- Trial name
- BCAS-Adult (NCT03073122)
- Testing
- Brain MRI, neurocognitive and psychological testing
- Where
- United States
- Volunteers
- 127 people, healthy volunteers welcome
- Sponsor
- Boston Children's Hospital
Prostate Cancer
Study to Monitor the Effects of Androgen Suppression Treatment on the Heart
Suppression of effects of androgens with male sex hormones, androgen suppression treatment (AST), has been known to reduce deaths and prolong life in advanced prostate cancer.
- Trial name
- AST (NCT01230905)
- Testing
- PET scan and ultrasound
- Where
- Canada
- Volunteers
- 181 people, healthy volunteers welcome
- Sponsor
- Ottawa Heart Institute Research Corporation
Patient Participation, Heart Defects, Congenital
Liver Disease, Myocardial Fibrosis and Collaterals in the Adult Fontan Patient a Metabolomics and Proteomics Approach
Out objective is to identify the mechanisms that promote hepatic and myocardial fibrosis, and collateral vessel formation in patients with complex congenital heart disease and Fontan circulation.
- Conditions
- Patient Participation, Heart Defects, Congenital, Liver Diseases, Collateral Circulation, Any Site
- Trial name
- NCT04764305
- Where
- Austria
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Medical University Innsbruck
Cardiovascular Disease
Cerebrovascular Outcomes in Ischemic Heart Disease
This project will examine the association between (cardio)vascular disease, blood supply to the brain, and cerebrovascular endothelial activation.
- Trial name
- IHD (NCT02715661)
- Testing
- exercise
- Where
- Canada
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- Western University, Canada
Vascular Disease, Heart Disease
Gap Junction Potentiation of Endothelial Function With Rotigaptide
Hypothesis - Rotigaptide will improve endothelial function in the context of endothelial dysfunction. The lining of blood vessels (endothelium) can react to hormones in the blood stream causing the blood vessel muscle to relax…
- Trial name
- NCT00901563
- Testing
- Rotigaptide, Forearm vascular study
- Where
- United Kingdom
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Chest Wall Blocks
Serratus Anterior Plan Block (SAP) and Pectoralis (PECSI-II) Blocks on Left Internal Mammarian Artery (LIMA) Blood Flow
To investigate whether the anterior chest wall blocks performed before the surgery have an effect on the LIMA (left internal mammarian artery) blood flow in patients who will undergo coronary artery bypass surgery.
- Trial name
- NCT05907798
- Testing
- LIMA Blood flow
- Where
- Turkey (Türkiye)
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Yuzuncu Yil University
Coronary Arterial Disease (CAD), Angina (Stable)
The Effect of Sublingual Nitroglycerin on Absolute Coronary Blood Flow
The goal of this clinical trial is to investigate the effect of sublingual nitroglycerin on absolute coronary blood flow in adult patients undergoing coronary angiography.
- Trial name
- FLOW-NITRO (NCT06823843)
- Testing
- Glycerin trinitrate (GTN)
- Where
- Belgium
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- VZW Cardiovascular Research Center Aalst
Single-ventricle
Inspiratory Muscle Therapy in Subjects With Fontan Circulations
Individuals who have undergone the Fontan procedure are uniquely dependent upon respiratory mechanics to support pulmonary blood flow (PBF).
- Trial name
- NCT03339466
- Testing
- Inspiratory muscle therapy
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Vascular Disease, Heart Disease
Effects of Urocortins on Forearm Arterial Blood Flow in Healthy Volunteers
Impairment of the heart's pumping capacity (heart failure) remains a major clinical problem with a poor prognosis and the search for novel treatments remains an important area of research.
- Trial name
- NCT01049542
- Testing
- Astressin 2B
- Where
- United Kingdom
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Atherosclerosis, Heart Failure, Congestive
The Role of Angiotensin Type I Receptor in the Regulation of Human Peripheral Vascular Function
The renin angiotensin system (RAS) plays an important physiological and pathophysiological role in the control of blood pressure and plasma volume.
- Conditions
- Atherosclerosis, Heart Failure, Congestive, Hypertension, Myocardial Infarction
- Trial name
- NCT00001628
- Testing
- Angiotensin II type 1 receptor antagonists
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)