Clinical trials: Microvascular Disease
Heart Failure With Preserved Ejection Fraction, Microvascular Angina
Neuregulin-1 in Patient With Different Forms of Cardiovascular Diseases: a Pilot Study
This is an observational study of Neuregulin-1 (NRG-1) plasma levels in patients with different forms of cardiovascular disease including microvascular angina (MVA), heart failure with preserved ejection fraction (HFpEF), as well…
- Conditions
- Heart Failure With Preserved Ejection Fraction, Microvascular Angina, Pulmonary Hypertension, Heart Failure With Reduced Ejection Fraction
- Trial name
- NRG-1-CVDs (NCT04391491)
- Testing
- Neuregulin-1β level in plasma
- Where
- Russia
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- I.M. Sechenov First Moscow State Medical University
Peripheral Artery Disease
The Value of Super-resolution Ultrasound Imaging for Peripheral Artery Disease
Peripheral artery disease (PAD) is a chronic atherosclerotic disorder characterized by stenosis or occlusion of the extracranial arteries distal to the aortic arch, most commonly affecting the lower extremities.
- Trial name
- NCT07374601
- Where
- China
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Peking University First Hospital
Visceral Fat, Insulin Resistance
Study of Visceral Fat in type2diabetic Patients and Its Relation to Microvascular Complications
Study the correlation between METS IR and visceral fat in type 2 diabetes and its relation to microvascular complication
- Trial name
- NCT06112197
- Where
- Egypt
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Sohag University
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
Retinal Vascular, Retinal Disease
Perifoveal Vascular Network Assessed by OCT-Angiography in Type I Diabetes Mellitus
This study is directed to evaluate the role of Optical Coherence Tomography Angiography (OCT-A) in the evaluation of the perifoveal vascular network in type 1 diabetic patients, and to investigate the relationship between…
- Conditions
- Retinal Vascular, Retinal Disease, Retinal Ischemia, Retinal Ischaemia Due to Type 1 Diabetes Mellitus
- Trial name
- NCT03422965
- Testing
- Optical Coherence Tomography Angiography, Blood test, Urine test
- Where
- 2 sites in Spain
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Hospital Clinic of Barcelona
Hypertension,Essential
Peripheral Vascular Effects of Sulfhydryl-containing Antihypertensive Pharmacotherapy on Microvessels in Humans
High blood pressure can cause physical changes to the blood vessels of the body (remodeling). If a person who has high blood pressure also has a lot of blood vessel remodeling with their condition, they are more likely to have…
- Trial name
- H2SPharm (NCT03179163)
- Testing
- Captopril Pill, Enalapril Pill, Hydrochlorothiazide
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Penn State University
Gestational Diabetes
Metformin for the Treatment of Microvascular Dysfunction After Gestational Diabetes
The purpose of this investigation is to examine the mechanisms mediating vascular dysfunction in women who have had gestational diabetes and how metformin may be a valuable treatment tool to improve microvascular function in…
- Trial name
- NCT05917587
- Testing
- Metformin Hydrochloride
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Anna Stanhewicz, PhD
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)
Adolescent, Adult
Prospective Clinical Study of Retinal Microvascular Alteration After ICL Implantation
To observe the retinal microvascular alteration during 3 months follow-up after Implantable Collamer Lens (ICL) operation in moderate and high myopia patients using quantitative optical coherence tomography angiography (OCTA)…
- Conditions
- Adolescent, Adult, Human, Male
- Trial name
- NCT04443231
- Testing
- Optical Coherence Tomography Angiography
- Where
- China
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Insulin Resistance, Healthy
Role of Sympathetic Vasoconstriction on Insulin-Mediated Microvascular Recruitment and Glucose Uptake in Obesity
The purpose of this study is to better understand the contribution of sympathetic vasoconstriction to impaired insulin-mediated vasodilation and subsequently insulin-mediated glucose uptake.
- Conditions
- Insulin Resistance, Healthy, Obesity
- Trial name
- NCT03318094
- Testing
- Phentolamine, Saline, Sodium Nitroprusside
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Stroke, Vascular Diseases
Passive Limb Movement Study
Stroke survivors have compromised vascular function which may contribute to secondary stroke risk, cardiovascular disease, and may limit their exercise tolerance.
- Conditions
- Stroke, Vascular Diseases, Ischemic
- Trial name
- PLM (NCT05935670)
- Testing
- Ischemic Conditioning
- Where
- United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Medical College of Wisconsin
Microvascular Angina, Hypertension
Effects of Intensive Long-Term Vasodilation in Hypertensive Patients With Microvascular Angina Pectoris
The purpose of this study is to determine if long-term vasodilatory treatment is more effective than the standard treatment in hypertensive patients with microvascular angina pectoris
- Trial name
- NCT00424801
- Testing
- Lercanidipine, Valsartan, Nicorandil
- Where
- Denmark
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Inflammation, Sjogren's Syndrome
Superb Microvascular Imaging Ultrasonography of Lacrimal Gland in Patients With Sjögren Syndrome
A prospective study will be conducted to evaluate inflammatory activity in lacrimal glands due to Sjögren's syndrome on Superb Microvascular Imaging (SMI), gray scale ultrasound (US), color Doppler US and Power Doppler US.
- Conditions
- Inflammation, Sjogren's Syndrome, Gland; Inflammation
- Trial name
- SMI (NCT05689749)
- Testing
- Superb Microvascular Imaging (SMI) (Toshiba)
- Where
- Turkey (Türkiye)
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Nigde Omer Halisdemir University
Atherosclerosis, Diabetes
Quantitative Assessment and Characterization of Microvascular Function Using Diffuse Optical Tomography
Atherosclerosis is accompanied by microvascular dysfunction (an impairment of blood vessels to dilate or constrict in response to demand).
- Conditions
- Atherosclerosis, Diabetes, Coronary Artery Disease
- Trial name
- DOT (NCT03411213)
- Testing
- diffuse optical tomography
- Where
- United Kingdom
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Sheffield Teaching Hospitals NHS Foundation Trust
Cardiovascular Diseases, Heart Diseases
HDL-C in Cardiac Syndrome X
High density lipoprotein cholesterol (HDL-C) is in the centrum of the process of reverse cholesterol transport from peripheral cells to the liver[10].
- Conditions
- Cardiovascular Diseases, Heart Diseases, Myocardial Ischaemia, Unstable Angina
- Trial name
- HIRICS-X (NCT02095964)
- Volunteers
- 710 people, healthy volunteers welcome
- Sponsor
- Bursa Yuksek Ihtisas Training and Research Hospital
Severe Malaria
Severe and Cerebral Malaria Investigated Through Host Metabolomics
The aim is to describe disease mechanisms of severe and cerebral malaria and identify new targets for adjunctive therapies. Despite treatment between 10-30% of patients with severe malaria die.
- Trial name
- NCT02451904
- Testing
- Observation
- Where
- Bangladesh
- Volunteers
- 840 people, healthy volunteers welcome
- Sponsor
- University of Oxford
Raynaud Disease, Scleroderma, Systemic
Laser Speckle Contrast Imaging for Cutaneous Microvascular Dysfunction Detection in Systemic Sclerosis.
The aim of the study is to determine if postocclusive hyperemia of palmar and dorsal face of the hand with Laser speckle contrast imaging discriminate between patients with systemic sclerosis, subjects with primary Raynaud's…
- Trial name
- SPECIES (NCT01743612)
- Testing
- laser speckle contrast imaging, Cooling
- Where
- 2 sites in France
- Volunteers
- 101 people, healthy volunteers welcome
- Sponsor
- University Hospital, Grenoble
Thyroid Nodular Disease
Microvascular Profiling of Nodules in the Thyroid Gland
The purpose of this study is to examine tiny blood vessels in different thyroid nodules using advanced ultrasound. In the long term, we hope this can help doctors better tell the difference between types of nodules and more…
- Trial name
- NCT07041307
- Where
- 2 sites in Denmark
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Autoimmune Diseases, Sickle Cell Disease
Microvascular and Fibrosis Imaging Study
In this study, Laser Doppler Flowmetry (LDF), Laser Doppler Imaging (LDI), Orthogonal Polarization Spectral Imaging (OPSI), Nail fold video capillaroscopy (NVC) and Optical Coherence Tomography (OCT) will be used to assess…
- Conditions
- Autoimmune Diseases, Sickle Cell Disease, Chronic Graft Versus Host Disease
- Trial name
- NCT01758250
- Testing
- Acoustic Radiation Force Impulse (ARFI), Laser Doppler Flowmetry (LDF), Laser Doppler Perfusion Imaging (LDI)
- Where
- United States
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- Duke 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