Clinical trials: Coronary Circulation
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)
Down Syndrome
Blood Flow in Individuals With Down Syndrome
This study focuses on physiological explanations of difficulties with physical activity and exercise in individuals with Down syndrome, by non-invasively examining cardiac output and the regulation of blood flow to working…
- Trial name
- NCT03590665
- Testing
- Hand grip exercise and lower body negative pressure
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- University of Illinois Chicago
Heart Failure, Diastolic, Diastolic Heart Failure
Myocardial Perfusion, Oxidative Metabolism, and Fibrosis in HFpEF
Unlike heart failure with reduced ejection fraction (HFrEF) where several medicines and devices have been demonstrated to reduce mortality, no such therapies have been identified in HFpEF.
- Conditions
- Heart Failure, Diastolic, Diastolic Heart Failure, Hypertension
- Trial name
- HFpEF-PRoF (NCT02589977)
- Testing
- regadenoson
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Marvin W. Kronenberg, M.D.
Cardiac Surgery With Extracorporeal Circulation, Thoracic Surgery
Evaluation of the Prognostic Value of Preoperative Quadriceps and Respiratory Muscle Thickness by Ultrasound Measurement in Cardiac and Thoracic Surgery Patients
Cardiac and thoracic surgery are major procedures. In order to estimate the operative risk, many scores have been developed, including the Euroscore 2 in cardiac surgery.
- Trial name
- MUSCA (NCT05412095)
- Testing
- Ultrasound of the abdominal wall muscles, Ultrasound quadricipital, Ultrasound of the diaphragm
- Where
- France
- Volunteers
- 301 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire Dijon
Heart Failure, Coronary Artery Disease
123I-mIBG SPECT Imaging
This study is being done with a radioisotope, 123I-mIBG (Adreview), to develop a nuclear diagnostic imaging test for patients with decreased heart function which can be used to predict the progression of the heart disease and…
- Trial name
- NCT02043522
- Testing
- Radioisotope
- Where
- Canada
- Volunteers
- 30 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
Obstructive Sleep Apnea (OSA)
Heart and Brain Blood Flow in Obstructive Sleep Apnea
Obstructive sleep apnea causes repeated pauses in breathing during sleep. Breathing efforts against an occluded airway may change how blood flows through the heart and how blood drains from the brain.
- Trial name
- OSA4DFlow (NCT07913269)
- Where
- 2 sites in Denmark
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
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
Heart Disease, Vasodilation
Interaction of Apelin and Angiotensin in the Human Forearm Circulation
The apelin-APJ system is a relatively new discovery. It has generated interest in part due to it's apparent ability to counteract the renin-angiotensin system, which is frequently overactive in many cardiovascular disease.
- Trial name
- NCT00901888
- Testing
- Apelin infusion, Sodium nitroprusside infusion
- Where
- United Kingdom
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Congenital Heart Disease
Fontan Circulation and Cardiopulmonary Function: Prognostic Factors, Hemodynamics and Long-term Effects
Cross-sectional study of a national cohort of adolescents with univentricular congenital heart defects and Fontan type palliation.
- Trial name
- NCT02378857
- Where
- Norway
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Oslo University Hospital
Down Syndrome
Blood Flow Regulation in Individuals With Down Syndrome - Training Study
Work capacity is an important predictor of declining health or physical function, and of mortality, and is commonly measured as peak oxygen consumption.
- Trial name
- NCT04854122
- Testing
- Combined exercise intervention
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Nevada, Las Vegas
Type 2 Diabetes Mellitus
Vascular Function and Biomarker Assessments in Healthy Volunteers and in Patients With Type 2 Diabetes Mellitus
The purpose of this study is to evaluate the vascular function and biomarkers in healthy volunteers and type 2 diabetic patients.
- Trial name
- NCT04744636
- Testing
- Other
- Where
- Germany
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Institut de Recherches Internationales Servier
Coronary Artery Disease
Palmar Arch Insufficiency as a Risk Factor for Radial Artery Occlusion After Transradial Catheterization
Transradial access (TRA) is commonly used in different medical fields due to the superficial position of the radial artery and related advantages.
- Trial name
- PAIRAO (NCT03993834)
- Where
- Switzerland
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Healthy Volunteers, Heart Failure
A Study Understanding How Much CDR132L Enters the Bloodstream After Injection Under the Skin Compared to Injection Into a Vein in Healthy Participants
This study is being done to understand how much of the medicine (CDR132L) enters the bloodstream after injection under the skin compared to injection into a vein in healthy people.
- Trial name
- NCT07656454
- Testing
- CDR132L (i.v.), CDR132L (s.c.)
- Where
- Germany
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Novo Nordisk A/S
Coronary Artery Disease
Development and Translation of Generator-Produced PET Tracer for Myocardial Perfusion Imaging-Dosimetry Group
This study is a single center, early phase 1 clinical imaging study designed to assess the dosimetry of 68Ga-Galmydar for PET/CT imaging.
- Trial name
- GALMYDAR (NCT05280782)
- Testing
- Ga-68 Galmydar
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
HFpEF
Muscle Blood Flow Regulation in HFpEF
Heart failure with preserved ejection (HFpEF) disproportionately affects Veterans and is the number one reason for hospital discharge in the VA Health Care System.
- Trial name
- NCT05115890
- Testing
- Exercise training
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Pulmonary Arterial Hypertension, Heart Failure
Effects of Apelin on the Lung Circulation in Pulmonary Hypertension
The purpose of this study is to determine the effects of Apelin on the lung circulation. The investigators hypothesise that Apelin will relax the lung blood vessels and improve the pumping ability of the heart.
- Trial name
- NCT01457170
- Testing
- Apelin
- Where
- 3 sites in United Kingdom
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- Golden Jubilee National Hospital
Health, Subjective
Effects of Blood Flow Restriction Training on Exercises in Healthy Individuals.
Partial restriction of blood flow to working muscles during exercise is proven to increase muscle mass and strength even with low-intensity of exercise.
- Trial name
- NCT06254586
- Testing
- Aerobic exercises, Resisted exercises
- Where
- Saudi Arabia
- Volunteers
- 480 people, healthy volunteers welcome
- Sponsor
- Prince Sattam Bin Abdulaziz University
Blood Platelet Disorders, Cardiac Surgery
Observational Study of Platelet Dysfunction Assessed by Thromboelastography in Cardiovascular Surgery (DISPLATEG)
Perioperative bleeding requiring blood transfusion is common during cardiovascular surgery, especially in procedures requiring cardiopulmonary bypass. Adenosine diphosphate (ADP) plays a fundamental role in platelet function.
- Conditions
- Blood Platelet Disorders, Cardiac Surgery, Postoperative Bleeding
- Trial name
- DISPLATEG (NCT06961175)
- Where
- Spain
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León
Exercise
Correlation Between HRV and Performance in Eccentric Resistance Training Associated With Partial Blood Flow Restriction
Studies on resistance training (RT) associated with blood flow restriction (BFR) is an alternative method of gaining strength and hypertrophy muscle.
- Trial name
- NCT04422301
- Testing
- Blood flow restriction
- Where
- Brazil
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Franciele Marques Vanderle