Clinical trials: Blood Circulation Disorder
Preterm Labor, Cerebral Palsy
Calcium Channel Blockers Compared to Magnesium Sulfate in Fetal Cerebral Blood Flow
The aim of this study is to investigate the possible use of calcium channel as a neuroprotectant in cases with PTL. This will be done by comparing the effect they have on cerebral blood vessels with the already established MgSo4.
- Trial name
- NCT02591004
- Testing
- Magesium sulphate, Nifedipine, Doppler on fetal middle cerebral artery
- Where
- Egypt
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- Kasr El Aini Hospital
Obstructive Sleep Apnea, Hypertension
Effect of Selective and Nonselective Cyclooxygenase Enzyme Inhibition on Arterial Blood Pressure and Cerebral Blood Flow With Exposure to Intermittent Hypoxia in Humans
The study has been designed to assess the effect of cyclooxygenase inhibition on blood pressure, cerebral blood flow, ventilation and renal hemodynamics following chronic intermittent hypoxia exposure.
- Conditions
- Obstructive Sleep Apnea, Hypertension, Cardiovascular Diseases, Stroke
- Trial name
- NCT01280006
- Testing
- Intermittent hypoxia, Indomethacin, Celecoxib
- Where
- Canada
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Calgary
Sexual Dysfunction, Stress Incontinence
A Study to Measure the Degree and Effectiveness of the Various vSculpt Operating Modes
A pilot study to determine the degree and effectiveness of the various modes of vSculpt, an over-the-counter "OTC" medical device, on enhanced genital blood flow and improvement in quality of life in menopausal women who suffer…
- Trial name
- NCT02856490
- Testing
- vSculpt, InTone
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Joylux, Inc.
Kidney Diseases
The Effects of Glucagon on Renal Regional Blood Flow in Humans Measured by Magnetic Resonance.
This study will investigating the effects of glucagon on renal blood flow in humans using MRI technology. Glucagon, a hormone produced by the pancreas, plays a key role in regulating blood sugar levels.
- Trial name
- NCT06872060
- Testing
- Glucagon, Glucagon+Exendin9-39, Sodium chloride
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Bispebjerg Hospital
Pregnancy, Polycystic Ovary Syndrome
Metformin and Folate in Pregnant Polycystic Ovary Syndrome(PCOS) Women
A more recent prospective nonrandomized placebo-controlled double-blind clinical study demonstrated that metformin exerts a slight but significant deleterious effect on serum homocysteine (Hcy) levels in patients with PCOS, and…
- Trial name
- NCT01115140
- Testing
- Metformin plus folic acid
- Where
- Italy
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University Magna Graecia
Osteoarthritis, Knee
Effects of Low Intensity Blood Flow Restriction on Clinical Outcomes in Women With Knee Osteoarthritis
Objective is to compare the effects of routine physical therapy with and without low intensity blood flow restriction on pain and quadriceps muscle strength in women with knee osteoarthritis.
- Trial name
- BFR (NCT04865692)
- Testing
- BFRT, Routine Physical Therapy
- Where
- Pakistan
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Lahore
Postural Tachycardia Syndrome
Local Vasoconstriction in Postural Tachycardia Syndrome
The investigators study will determine how often blood flow regulation abnormalities and abnormalities of sympathetic regulation produced by nitric oxide, angiotensin-II, and oxidative stress occur in POTS and the mechanism(s) of…
- Trial name
- NCT01210430
- Testing
- Losartan, Ascorbic Acid (Vitamin C), Normal Saline
- Where
- United States
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- New York Medical College
Alzheimer's Disease
Memory Imaging of Normal Aging
The purpose of this study is to develop imaging techniques that can distinguish functional brain changes in people at high risk for dementia years prior to onset of clinical memory problems from those with normal changes of aging.
- Trial name
- NCT00315575
- Testing
- BOLD and Perfusion brain MRI
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- National Institute on Aging (NIA)
Multiple Sclerosis
Transcranial Electrical Stimulation in Multiple Sclerosis
First the investigators will examine if the blood flow in the brain is different in patients with Multiple Sclerosis compared to healthy volunteers. HOW? The blood flow of the subjects is imaged by use of a special MRI-technique.
- Trial name
- TEMS (NCT06966128)
- Testing
- transcranial Direct Current Stimulation
- Where
- 2 sites in Belgium
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Universitair Ziekenhuis Brussel
Healthy
Effects of Miconazole on Blood Flow
This study will investigate the effect of the drug miconazole on blood vessel dilation. Miconazole stops production of EDHF, a substance that causes arteries to dilate. EDHF is produced by the cells that line blood vessels.
- Trial name
- NCT00004575
- Testing
- Miconazole, L-NMMA, Bradykinin
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
PreDiabetes
Study: Diet and Exercise Study to Improve Brain Blood Flow: Blood Flow Improvement Trial
Project Summary Metabolic syndrome (MetS) is associated with the development of diabetes and cardiovascular disease; however it is also linked with cognitive decline and dementia.
- Trial name
- BFIT (NCT03117829)
- Testing
- Diet and Exercise
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Aging, Cognitive Decline
Blood Flow Restriction and High-intense Resistance Training in Aging: Interactions Between Neuroplasticity and Muscle
BRAIN-M is a randomized controlled trial designed to examine the effects of a single bout or 12 weeks of blood-flow restriction training or high-intensity resistance training on cognitive function, brain health, muscular…
- Conditions
- Aging, Cognitive Decline, Sarcopenia, Frailty
- Trial name
- BRAIN-M (NCT05744167)
- Testing
- BFRT, MDRT
- Where
- Lithuania
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Lithuanian Sports University
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
Determine the Effects of Nitrosigine and Citrulline-malate on Flow-mediated Dilation Among Young Adults
Evaluation of Sports Supplements on Blood Flow
Many athletes seek to increase their plasma (blood) nitric oxide content prior to exercise in order to augment vasodilation. Increased vasodilation during exercise, especially high intensity resistance training, allows for more…
- Trial name
- NCT04278053
- Testing
- inositol-stabilized arginine silicate
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Arkansas, Fayetteville
Headache, Migraine
Headache Inducing Characteristics and Possible Changes in Cerebral Blood Flow After Administration of PGE2
Before, during and after intravenous administration of PGE2 we score/measure headache, rCBF, blood flow in the middle cerebral artery and diameter of superficial temporal artery and correlate that to known pathophysiology of…
- Trial name
- NCT00374530
- Testing
- PGE2
- Where
- Denmark
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Danish Headache Center
Venous Thrombosis
A Comparison of Neuromuscular Electrical Stimulation and Intermittent Pneumatic Compression in Terms of Lower Limb Blood Flow
Deep Vein Thrombosis (DVT) is a life threatening condition and a serious concern among hospitalized patients, with death occurring in approximately 6% of cases.
- Trial name
- NCT01886612
- Testing
- Duo-STIM neuromuscular electrical stimulator, AV Impulse System Model 6000
- Where
- Ireland
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- National University of Ireland, Galway, Ireland
Obesity
Effect of Oral Feeding on Gastric Emptying, Gut Blood Flow, and Hormone Responses in Obese and Healthy Weight Subjects
Obesity is a complicated condition that is poorly understood. The aim of this study is to increase our knowledge of how the condition may arise, and what makes obese people remain obese.
- Trial name
- NCT03860623
- Where
- United Kingdom
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Nottingham
Coronary Artery Disease
CO2 as a Stress Agent for Perfusion Imaging
Myocardial perfusion imaging (MPI) is a nuclear scan using a radioisotope to see blood flow to the muscles of the heart when the heart is at rest and when it is under stress.
- Trial name
- CO2 STRESS (NCT02043535)
- Testing
- Delivery of precise levels of carbon dioxide with the RA-MR™ Virtual Sequential Gas Delivery System., Delivery of rubidium radioisotope (Rb-82) using the automated pump/elution system
- Where
- Canada
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Ottawa Heart Institute Research Corporation
Right Ventricular Dysfunction, Cardiopulmonary Diseases
Right Heart and Lung Blood Flow During Exercise (RIGHT-NET 2.0)
RIGHT-NET 2.0 is a multicenter observational study with a retrospective-prospective design that builds on the original RIGHT-NET study.
- Conditions
- Right Ventricular Dysfunction, Cardiopulmonary Diseases, Pulmonary Hypertension
- Trial name
- RIGHT-NET 2 (NCT07851610)
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- IRCCS SYNLAB SDN
Cystic Fibrosis
Blood Flow and Vascular Function in Cystic Fibrosis
Cystic fibrosis (CF) has many health consequences. A reduction in the ability to perform exercise in patients with CF is related to greater death rates, steeper decline in lung function, and more frequent lung infections.
- Trial name
- CF-FLOW (NCT02057458)
- Testing
- Sildenafil (Acute-1 hour), Sildenafil (Subchronic-4 weeks)
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Augusta University