Clinical trials: Coronary Microvascular Dysfunction
Diabetes Mellitus, Type 2, Diabetic Cardiomyopathies
CMR in T2DM: The NSR Cohort
This study aims to investigate the myocardial phenotype of patients with type 2 diabetes. From 2016-2019 the investigators recruited a cohort of 296 subjects with type 2 diabetes.
- Conditions
- Diabetes Mellitus, Type 2, Diabetic Cardiomyopathies, Cardiovascular Magnetic Resonance Imaging, Coronary Microvascular Dysfunction
- Trial name
- NCT05915260
- Testing
- All subjects will undergo cardiac magnetic resonance imaging with gadolinium contrast and with adenosine myocardial perfusion
- Where
- Denmark
- Volunteers
- 700 people, healthy volunteers welcome
- Sponsor
- Slagelse Hospital
Coronary Microvascular Disease, Cardiac Pacemaker Syndrome
The Effects of Trans Venous Cardiac Pacing on Coronary Microvascular Function and Hemodynamics
The study will examine role of transvenous pacing on coronary microcirculation.
- Trial name
- NCT03917251
- Testing
- Coronary flow and pressure measurement in patients with ventricular pacing
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Nebraska
Rheologic Disease, Sickle Cell Disease
Microvascular and Cardiac Dysfunction in Paroxysmal Nocturnal Hemoglobinuria and Sickle Cell Disease
The purpose of this study is to examine how abnormal blood flow in the small vessels (microvessels) of the heart, muscle and kidney in paroxysmal nocturnal hemoglobinuria (PNH) or sickle cell disease leads to poor functioning of…
- Conditions
- Rheologic Disease, Sickle Cell Disease, Paroxysmal Nocturnal Hemoglobinuria
- Trial name
- NCT01294891
- Testing
- Imaging
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Syndrome X
Syndrome X and Endothelial Dysfunction
Cardiac syndrome X is characterized by angina, positve stress test, and patent coronary angiography, and its probable mechanism is microvascular dysfunction associated with endothelial dysfunction.
- Trial name
- NCT00190086
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Far Eastern Memorial Hospital
Myocardial Blood Flow Reserve, Mechanical Dyssynchrony
Mechanical Dyssynchrony and Microvascular Dysfunction by SPECT
The project is aimed at studying the feasibility of mechanical dyssynchrony of the left ventricle of the heart, determined by SPECT (gated MPI), as well as its stress-induced dynamics, in the evaluation of patients with coronary…
- Conditions
- Myocardial Blood Flow Reserve, Mechanical Dyssynchrony, Coronary Arterial Disease (CAD)
- Trial name
- MD&MD (NCT06969547)
- Testing
- dynamic SPECT (two-day rest/stress protocol), gated myocardial perfusion imaging, blood sampling
- Where
- Russia
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Tomsk National Research Medical Center of the Russian Academy of Sciences
Microvascular Coronary Artery Disease, Heart Failure With Reduced Ejection Fraction
CMR Assessment of Cardiac Microvascular Dysfunction in Patients With HFpEF
Heart failure with preserved ejection fraction (HFpEF) causes hospitalizations, premature mortality and high health care costs. This is also due to poor understanding of HFpEF pathogenesis and, thus, lack of specific therapies.
- Trial name
- MAPPED (NCT06316661)
- Testing
- stress perfusion cardiac magnetic resonance, cardiopulmonary exercise test
- Where
- Italy
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Istituto Auxologico Italiano
Sickle Cell Disease
Microvessels and Heart Problems in Sickle Cell Disease
Background: Small blood vessels (microvessels) in many different organs are affected by diseases such as diabetes and atherosclerosis. These microvessels may also be abnormal in people who have sickle cell disease.
- Trial name
- NCT01602809
- Where
- United States
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Retinopathy, Diabetic, Diastolic Dysfunction
REWARD: Using the REtina as a Window To Detect Cardiac microvasculAR Dysfunction In Diabetes Mellitus
Retinopathy may be associated with diastolic dysfunction and/or coronary flow reserve in the heart, and albuminuria in diabetic patients.
- Conditions
- Retinopathy, Diabetic, Diastolic Dysfunction, Microalbuminuria
- Trial name
- NCT04025996
- Testing
- Cardiac Assessments and Eye Assessments
- Where
- Singapore
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- National Heart Centre Singapore
MINOCA, STEMI
Retinal OCTA for Microvascular Dysfunction Evaluation and Outcome Prediction in MINOCA Patients
The aim of this study is to evaluate microvascular dysfunction through OCTA in MINOCA patients. In order to better understand the condition, OCTA will also be performed in two matched patient groups: healthy controls and ACS…
- Conditions
- MINOCA, STEMI, Normal
- Trial name
- REVEAL (NCT07055152)
- Where
- Italy
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University of Pisa
Coronary Microvascular Dysfunction, Ischaemia With Non Obstructed Coronary Arteries
Mechanisms Behind Microvascular Dysfunction in INOCA
The purpose of the study is to identify the causes of chest pain in patients experiencing chest pain with no signs of narrowing in the coronary arteries of the heart.
- Trial name
- ExINOCA-P1 (NCT06529861)
- Testing
- [15O]H2O-PET Imaging
- Where
- Denmark
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Bispebjerg Hospital
Coronary Microvascular Dysfunction, Ischemic Non-Obstructive Coronary Artery Disease
MCG as a Noninvasive Diagnostic Strategy for Suspected Coronary Microvascular Dysfunction
According to the Women's Ischemic Syndrome Evaluation database, there are approximately 3 to 4 million women and men who present with signs and symptoms that are suggestive of myocardial ischemia, however they have no obstructive…
- Trial name
- MICRO (NCT05150054)
- Testing
- CardioFlux
- Where
- 4 sites in United States
- Volunteers
- 93 people, healthy volunteers welcome
- Sponsor
- Genetesis Inc.
Overweight, Pre Diabetes
DPP4 Activity, Microvascular Reactivity and Inflammation
Dipeptidyl peptidase 4 (DPP4) is a serine exopeptidase able to inactivate various oligopeptides involved in inflammation, immunity and vascular function.
- Conditions
- Overweight, Pre Diabetes, Diabetes Mellitus Type 2 Without Complication
- Trial name
- DPP4 (NCT03178019)
- Testing
- Laser-Doppler methods
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Rio de Janeiro State University
Coronary Microvascular Dysfunction
Effect of Intact GLP-1 (7-36) and GLP-1 Metabolite (9-36) on Coronary and Peripheral Vascular Function in Adults
GLP-1 is an agent for treatment of type 2 diabetes and may have protective effects on the cardiovascular system. The mechanism is complex and there seems to be a dual function with intact GLP-1 (7-36), acting through the GLP-1…
- Trial name
- NCT02333591
- Testing
- GlucagonLikePeptide-1 (7-36), GlucagonLikePeptide-1 (9-36), Saline
- Where
- Denmark
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Mette Zander
Microvascular Coronary Dysfunction
Cardiac Autonomic Function in Women with Microvascular Coronary Dysfunction
Microvascular coronary dysfunction (MCD) (abnormities in small blood vessels/arteries in heart) with symptoms of persistent chest pain impacts women.
- Trial name
- NCT01568177
- Testing
- Mental Stress Testing, Peripheral Arterial Tonometry (PAT) Testing, Heart Rate Variability (HRV)
- Where
- United States
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- Cedars-Sinai Medical Center
Aortic Stenosis
Microvascular Dysfunction in Aortic Stenosis
Aortic stenosis (AS), or narrowing of the aortic valve, is the commonest condition requiring valve surgery in the developed world. It is currently not known what determines who will go on to develop symptoms.
- Trial name
- PRIMID-AS (NCT01658345)
- Where
- 3 sites in United Kingdom
- Volunteers
- 175 people, healthy volunteers welcome
- Sponsor
- University Hospitals, Leicester
Congenital Heart Defect, Congenital Heart Disease
Microvascular Dysfunction in Adults With Congenital Heart Disease and the Effect of Exercise Training
The goal of this prospective cohort study is to deepen the understanding of the pathophysiology in adults with congenital heart disease (CHD).
- Conditions
- Congenital Heart Defect, Congenital Heart Disease, Microvascular Dysfunction, Exercise Training
- Trial name
- MICONEX (NCT06715137)
- Testing
- Exercise training
- Where
- Belgium
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- University Hospital, Antwerp
Coronary Microvascular Disease, Microvascular Disease
Hyperoxia and Microvascular Dysfunction
Coronary artery disease (CAD) pathophysiology involves endothelium-dependent (e.g. nitric oxide, acetylcholine) and -independent (e.g.
- Conditions
- Coronary Microvascular Disease, Microvascular Disease, Ischemic Heart Disease
- Trial name
- NCT04321434
- Testing
- Hyperoxia, Normoxia, laser Doppler
- Where
- Belgium
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Université Libre de Bruxelles
Kidney Disease, Chronic, Myocardial Dysfunction
Coronary Microvascular Dysfunction in Chronic Kidney Disease
This is an observational study assessing coronary microvascular function in healthy controls with normal kidney function, living kidney donors, pre-dialysis patients with chronic kidney disease stage 5 and patients on peritoneal…
- Trial name
- CRIB-FLOW (NCT04014127)
- Testing
- Coronary flow reserve assessment, Sphygmocor, Electrocardiogram
- Where
- United Kingdom
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University Hospital Birmingham NHS Foundation Trust
Microvascular Coronary Dysfunction
Development of a Novel Stress Testing Protocol to Define the Relationship Between Coronary Microvascular Dysfunction and Diastology in Women With Angina But No Evidence of Obstructive Coronary Artery Disease
Microvascular coronary dysfunction (MCD) (abnormities in small blood vessels/arteries in heart) with symptoms of persistent chest pain, primarily impacts women.
- Trial name
- NCT02301663
- Testing
- Handgrip, Altitude simulation, Leg exercise
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cedars-Sinai Medical Center
Stroke, Epilepsy
Coronary and Cerebral Microvascular Dysfunction in Neurological Diseases
Neurological and cardiovascular diseases are increasing in relative and absolute terms globally, and pose a major burden in terms of morbidity, mortality, quality of life and healthcare costs.
- Conditions
- Stroke, Epilepsy, Transient Global Amnesia (TGA)
- Trial name
- G-HeBra (NCT07009990)
- Where
- Germany
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University Medicine Greifswald