Clinical trials: Coronary Circulation
Peripheral Arterial Disease
Effect of Beetroot Juice on Coronary Blood Flow and Walking Performance in PAD
In this study the investigators will test the hypothesis that short-term consumption of inorganic nitrate (supplied in concentrated beetroot juice) enhances coronary blood flow responses, large artery hemodynamics, and leg…
- Trial name
- HeartBeet (NCT02553733)
- Testing
- Beetroot juice
- Where
- United States
- Volunteers
- 11 people
- Sponsor
- David N. Proctor, PhD
Heart Transplant
Donors After Circulatory Death Heart Trial
To evaluate the effectiveness of the OCS Heart System to resuscitate, preserve and assess hearts donated after circulatory death for transplantation to increase the pool of donor hearts available for transplantation.
- Trial name
- NCT03831048
- Testing
- OCS Heart System, Cold Storage
- Where
- 25 sites in United States
- Volunteers
- 180 people
- Sponsor
- TransMedics
Cardiac Disease
Hemodynamic Effect of Norepinephrine Versus Vasopressin on the Pulmonary Circulation in Cardiac Surgery Patients:
The relative increase in the mPAP with the same unit increase in MAP adjusted for baseline, and RV function assessed by GLS, between VP and NE in patients with normal and increased pulmonary artery pressure, who require…
- Trial name
- NCT04501861
- Testing
- Vasopressin, Norepinephrine
- Where
- United States
- Volunteers
- 153 people
- Sponsor
- The Cleveland Clinic
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.
Ventricular Tachycardia
Percutaneous Hemodynamic Support With Impella 2.5 During Scar-related Ventricular Tachycardia Ablation
The purpose of this research study is to evaluate the safety and feasibility of the Impella 2.5 Circulatory Support System for use during mapping and ablation of ventricular tachycardia in the setting of Ventricular dysfunction.
- Trial name
- PERMIT1 (NCT01294267)
- Testing
- Circulatory Support System
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Vivek Reddy
Coronary Artery Disease
Myocardial Blood Flow by PET and N-13 Ammonia During Regadenoson vs Adenosine Stress
Blockage of the heart arteries (coronary artery disease) can lead to angina (chest pain), heart attacks, heart failure, and/or death.
- Trial name
- NCT01370265
- Testing
- Regadenoson, Adenosine, N-13 ammonia
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Mitral Regurgitation, Pulmonary Hypertension
The Right Ventricular Pulmonary Circulation Continuum in Mitral Valve Disease Study
Mitral regurgitation (MR) is a prevalent valvular heart pathology. Indications for surgery include symptoms, impaired left ventricular function or enlarging dimensions, new onset atrial fibrillation, pulmonary hypertension…
- Trial name
- RIPCOM1 (NCT03155373)
- Testing
- Cardiac catheterisation, Cardiopulmonary exercise testing, Pulmonary function tests
- Where
- United Kingdom
- Volunteers
- 50 people
- Sponsor
- Imperial College London
Post-Resuscitation Syndrome, Critical Illness
Predicting Mortality in Patients With Return of Spontaneous Circulation After Cardiac Arrest
This retrospective observational cohort study aims to identify early predictors of short- and mid-term mortality in adult patients who achieved return of spontaneous circulation (ROSC) after cardiac arrest.
- Conditions
- Post-Resuscitation Syndrome, Critical Illness, Cardiac Arrest, Hypoxic-Ischemic Encephalopathy
- Trial name
- PROM-ROSC (NCT07020091)
- Where
- Turkey (Türkiye)
- Volunteers
- 168 people
- Sponsor
- Ahmet Düzgün
Congenital Heart Disease With Fontan Circulation
An Upcoming Clinical Study to Measure the Safety and Impact of a Drug Called Macitentan in Teenage and Adult Fontan Patients.
The aim of this open-label (OL) trial is to study the long-term use of macitentan for up to 2 years in Fontan-palliated adult and adolescent patients beyond the 52 weeks of treatment in the parent RUBATO double-blind (DB) study…
- Trial name
- RUBATO OL (NCT03775421)
- Testing
- macitentan 10 mg
- Where
- 19 sites in United States, Australia and 9 more
- Volunteers
- 112 people
- Sponsor
- Actelion
Hypertension, Left Ventricular Diastolic Dysfunction
Effect of Nebivolol on the Blood Flow in Hearts of Adults With High Blood Pressure and Abnormal Filling of Heart
To investigate whether treatment with Nebivolol in subjects with high blood pressure and abnormal filling of left ventricle (LVDD) improves exercise time by improving Left Ventricular deformation and filling.
- Trial name
- NCT01961323
- Testing
- Nebivolol
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- Icahn School of Medicine at Mount Sinai
Circulatory Perfusion Disorder, Congenital Heart Disease
Early Use of Vasopressin in Post-Fontan Management
This is an investigator initiated, prospective, single-center, double-blinded, randomized, placebo-controlled trial of post-operative low dose vasopressin infusions as an early treatment of low systemic perfusion in pediatric…
- Conditions
- Circulatory Perfusion Disorder, Congenital Heart Disease, Single-ventricle
- Trial name
- VAMP (NCT03088345)
- Testing
- Vasopressin, Arginine
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Medical College of Wisconsin
Cardiac Arrest, Cardiopulmonary Resuscitation
Circulation Improving Resuscitation Care (CIRC)
During resuscitation of out of hospital cardiac arrest patients the use of a mechanical chest compression device Autopulse will improve survival compared to manual compressions.
- Trial name
- CIRC (NCT00597207)
- Testing
- AutoPulse, Manual
- Where
- 5 sites in United States, Austria and 1 more
- Volunteers
- 4,231 people
- Sponsor
- Zoll Medical Corporation
Heart Failure; With Decompensation, Cardiorenal Syndrome
The Aortix CRS Pilot Study
The Aortix CRS Pilot Study: An Evaluation of the Safety and Performance of the Aortix System for Intra-Aortic Mechanical Circulatory Support in Patients with Cardiorenal Syndrome
- Conditions
- Heart Failure; With Decompensation, Cardiorenal Syndrome, Cardio-Renal Syndrome, Heart Failure
- Trial name
- NCT04145635
- Testing
- Aortix System
- Where
- 19 sites in United States, Australia
- Volunteers
- 21 people
- Sponsor
- Procyrion
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
Gastrointestinal Neoplasms
Cerebral Blood Flow During Propofol Anaesthesia
General anaesthesia often reduces blood pressure whereby blood flow to the brain and other vital organs may become insufficient. Thus, medicine is often administered during anaesthesia to maintain blood pressure.
- Trial name
- NCT02951273
- Testing
- Study of cerebral blood flow
- Where
- Denmark
- Volunteers
- 30 people
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Coronary Arteriosclerosis
Radial Artery Versus Saphenous Vein Patency (RSVP) Study
The purpose of this study is to determine whether the radial artery (artery in the arm) or saphenous vein (vein in the leg), when used as bypass grafts for coronary artery bypass surgery, have a greater patency rate (degree of…
- Trial name
- RSVP (NCT00139399)
- Testing
- Coronary artery bypass graft (CABG) surgery
- Where
- United Kingdom
- Volunteers
- 142 people
- Sponsor
- Imperial College London
Coronary Artery Disease
Vortex - Temporary Percutaneous, Transvalvular Circulatory Support System Feasibility Study
Vortex - First in Human study to evaluate the feasibility, safety, clinical and technical success of the Vortex temporary percutaneous, transvalvular circulatory support system (Vortex System)
- Trial name
- Vortex-FIH (NCT04674111)
- Testing
- Temporary Percutaneous Transvalvular Circulatory Support System (Vortex System)
- Where
- 2 sites in Australia, Sweden
- Volunteers
- 5 people
- Sponsor
- Boston Scientific Corporation
Electronic Fetal Monitoring, Fetal Hypoxia
Oxygen for Intrauterine Resuscitation of Category II Fetal Heart Tracings
Maternal oxygen administration for concerning fetal heart rate tracing (FHT) patterns is common practice on Labor and Delivery units in the United States.
- Conditions
- Electronic Fetal Monitoring, Fetal Hypoxia, Fetal-Placental Circulation
- Trial name
- O2C2 (NCT02741284)
- Testing
- Room air, 10L Oxygen by nonrebreather mask
- Where
- United States
- Volunteers
- 114 people, healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
Infection
The Effects of Modified Ultrafiltration on Vancomycin Levels During Cardiopulmonary Bypass in Cardiac Surgery
Antibiotics are routinely used to prevent surgical wound infection. Vancomycin is a widely used antibiotic for surgery in patients with an allergy to penicillin.
- Trial name
- NCT02051595
- Testing
- Vancomycin concentrations
- Where
- United States
- Volunteers
- 25 people
- Sponsor
- University of Florida
Coronary Artery Disease
Isoflavones and the Coronary Circulation in Men and Women With Coronary Artery Disease
The aim of this study is to investigate the effect of genistein administration on coronary arteries in humans. We will measure the size of a coronary artery and the speed and amount of blood flow in response after subjects have…
- Trial name
- NCT00287690
- Testing
- Genistein
- Where
- United Kingdom
- Volunteers
- 71 people
- Sponsor
- Imperial College London