Clinical trials: Cerebral Blood Flows
Diabetes
Effect of Flavanol-rich Cocoa on Peripheral and Cerebral Blood Flow in Type 2 Diabetes
Cocoa flavanols form part of the family of chemicals (also found in red wine and tea) which have aroused interest due to population studies suggesting that diets high in these substances might reduce risks of heart disease.
- Trial name
- NCT01654172
- Testing
- High Flavanol Cocoa, Low Flavanol Cocoa
- Where
- United Kingdom
- Volunteers
- 18 people
- Sponsor
- University of Nottingham
"Migraine-like" Headache
Prostaglandin E2 in Migraine Suffers Without Aura.
The hypothesis of this study is that Prostaglandin E2 (PGE2) induces headache and dilatation of brain vessels in migraine patients without aura.
- Trial name
- NCT01384812
- Testing
- dinoprostone, isoton sodium chloride
- Where
- Denmark
- Volunteers
- 12 people
- Sponsor
- Troels Wienecke
Williams Syndrome, Supravalvular Aortic Stenosis
Impact of Elastin Mediated Vascular Stiffness on End Organs
Background: People with Williams Syndrome (WS) and supravalvular aortic stenosis (SVAS) have less elasticity in their blood vessels. This is called blood vessel stiffness.
- Conditions
- Williams Syndrome, Supravalvular Aortic Stenosis, Cardiovascular Disease
- Trial name
- NCT02840448
- Where
- 2 sites in United States
- Volunteers
- 159 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Aortic Diseases, Cardiac Surgical Procedures
Selective Antegrade Cerebral Perfusion and Perioperative Optic Nerve Sheath Diameter in Ascending Aortic Surgery
In ascending aortic surgery the distal anastomosis may be constructed with the aortic cross-clamp maintained, or, where the extent of the aortic pathology and the geometry of the graft require it, after release of the cross-clamp…
- Conditions
- Aortic Diseases, Cardiac Surgical Procedures, Aortic Aneurysm, Thoracic, Delirium - Postoperative
- Trial name
- SACP-ONSD (NCT07800806)
- Testing
- Optic nerve sheath and optic nerve diameter ultrasonography, Transcranial Doppler ultrasonography
- Where
- Turkey (Türkiye)
- Volunteers
- 134 people
- Sponsor
- Koşuyolu Kartal Heart Training and Research Hospital
Concussion Post Syndrome
Blood Flow Restriction Concussion
The purpose of this study is to examine the effect that blood flow restriction training will have on patients with concussion who demonstrate an intolerance to physical activity.
- Trial name
- NCT03695042
- Testing
- Blood Flow Restriction Training with Exercise
- Where
- United States
- Volunteers
- 4 people
- Sponsor
- Duke University
Alcohol Consumption, Cerebral Blood Flow
Kudzu Effects on Brain Ethanol Levels: Proton Spectroscopy Assessment
This study is designed to test whether treatment with kudzu extract will increase the rate at which alcohol enters the brain as measured by rapid proton magnetic resonance spectroscopy (1H-MRS).
- Trial name
- Kudzu MRS (NCT01739842)
- Testing
- Kudzu extract
- Volunteers
- healthy volunteers welcome
- Sponsor
- Mclean Hospital
Cerebral Blood Flow
A Study on Hemodynamic Relationship Including Cerebral Blood Flow Using Phase Contrast and Signal Intensity Gradient of Brain Magnetic Resonance Imaging, and Carotid Doppler Ultrasound
Cerebral blood flow measurement, which is applied to patients with cerebrovascular-related diseases, provides useful information about hemodynamic status.
- Trial name
- NCT04585971
- Testing
- Signal intensity gradient
- Where
- South Korea
- Volunteers
- 30 people
- Sponsor
- Chonbuk National University Hospital
Gestational Diabetes Mellitus (GDM), Postpartum Women
The Impact of Gestational Diabetes Mellitus on Cerebral Blood Flow and Cerebrovascular Function After Pregnancy
Gestational Diabetes Mellitus (GDM) currently affects approximately 14% of all pregnancies worldwide. Importantly, the health-related consequences of GDM extend well beyond pregnancy, such that women with a history of GDM have a…
- Conditions
- Gestational Diabetes Mellitus (GDM), Postpartum Women, Uncomplicated Pregnancy
- Trial name
- NCT06911372
- Testing
- Intradermal Microdialysis, Brain Blood Flow Tests, Local Heating
- Where
- United States
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Anna Stanhewicz, PhD
Major Depressive Disorder
Multimodal MRI Characteristics of Psychotherapy Response in Late Life Depression
The specific focus of this study is to gather data regarding the effects of a psychological therapy known as Problem Solving Therapy (PST) on cerebral blood flow (CBF), cortical gray matter (GM) atrophy, subcortical white matter…
- Trial name
- PRS (NCT02440815)
- Testing
- Problem Solving Therapy
- Where
- United States
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Traumatic Brain Injury, Intracranial Hypertension
Cerebral Hemodynamic Effects of Hypertonic Solutions in Severely Head-Injured Patients
This is a clinical study comparing the physiologic effects of two hypertonic solutions (mannitol, hypertonic saline) with a particular emphasis on changes in cerebral blood flow in patients with intracranial hypertension…
- Trial name
- NCT00125229
- Testing
- Mannitol, Hypertonic Saline
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- The University of Texas Health Science Center at San Antonio
Ventilation Therapy
Cerebral Blood Flow: Helmet vs Oronasal Mask During Continuous Positive Airway Pressure Ventilation
In this trial the investigators will evaluate blood flow in common carotid artery of healthy subjects treated with Continuous Positive Airway Pressure (CPAP) Ventilation, comparing two different devices: oronasal mask versus…
- Trial name
- NCT06480253
- Testing
- Helmet Continuous Positive Airway Pressure, Oronasal Mask Continuous Positive Airway Pressure
- Where
- Italy
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Papa Giovanni XXIII Hospital
Cerebrovascular Circulation
The Impact of Non-pulsatile Blood Flow on CO2-Reactivity
The investigators hypothezised that CO2-reactivity of cerebral vessels is affected by systemic non-pulsatile blood flow. Patients undergoing elective cardiac surgery with CPB were enrolled in this prospective case control study.
- Trial name
- NCT03732651
- Testing
- alteration of PaCO2 level
- Where
- Austria
- Volunteers
- 32 people
- Sponsor
- Medical University of Vienna
Multiple Sclerosis
Regional Cortical Cerebral Quantitative MRI Perfusion Correlation Neurocognition in Multiple Sclerosis
Multiple Sclerosis (MS) is a common disease affecting 1/1000 Canadians. Cognition impairment is reported in 40-65% of patients and is socially and functionally disabling.
- Trial name
- NCT00812474
- Volunteers
- 60 people
- Sponsor
- Sunnybrook Health Sciences Centre
Functional Magnetic Resonance Imaging
A Study of Two Methodologies for Measuring Blood Flow in the Brain in Response to Non-Drug Stimuli (P08085/MK-0000-180)
This study will identify a dose of ferumoxytol that can reliably detect changes in blood flow/volume in response to non-drug stimuli.
- Trial name
- NCT01244282
- Testing
- fMRI with sensory stimulation
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Merck Sharp & Dohme LLC
Ventilator Associated Bacterial Pneumonia (VABP), Hospital Acquired Bacterial Pneumonia (HABP)
Safety, Pharmacokinetics and Efficacy of BV100 Plus Low Dose Polymyxin B Plus Ceftazidime/Avibactam, or Plus Cefiderocol in Patients With Pulmonary and Extrapulmonary Infections Due to Carbapenem-resistant Acinetobacter Baumannii-calcoaceticus Complex
This Phase IIb study aims to evaluate the safety and efficacy of BV100 in combination with low dose polymyxin B plus ceftazidime/avibactam or cefiderocol in patients with suspected or confirmed CRABC infections.
- Conditions
- Ventilator Associated Bacterial Pneumonia (VABP), Hospital Acquired Bacterial Pneumonia (HABP), Blood Stream Infection, Meningitis, Bacterial
- Trial name
- RIV- CARE (NCT07431307)
- Testing
- BV100 with 50 mg polymyxin B plus ceftazidime/avibactam, BV100 with 50 mg polymyxin B plus cefiderocol, Best Available Therapy (BAT)
- Volunteers
- 120 people
- Sponsor
- BioVersys AG
Acute Ischemic Stroke, Endovascular Thrombectomy
Minocycline After Successful Endovascular Thrombectomy Recanalization in Posterior Circulation Arterial Occlusion (ATTRACTION-MINOP)
Acute ischemic stroke (AIS) is a leading cause of mortality and long-term disability worldwide. Among these, stroke caused by large vessel occlusion (LVO) are associated with particularly poor outcomes.
- Conditions
- Acute Ischemic Stroke, Endovascular Thrombectomy, Minocycline, Posterior Circulation
- Trial name
- NCT07594301
- Testing
- Minocycline hydrochloride capsule
- Where
- China
- Volunteers
- 234 people
- Sponsor
- Xiang Luo
Stroke, Acute Ischemic Stroke
Safety and Efficacy of Adjunctive GM1 to Mechanical Thrombectomy for Acute Anterior Circulation Large Vessel Occlusion
Stroke is a leading cause of global mortality and morbidity, with acute ischemic stroke (AIS) accounting for approximately 65.3% of cases and resulting in roughly 3.4 million new cases annually in China.
- Trial name
- IAT-GIANT (NCT07519044)
- Testing
- Intravenous GM1 Therapy
- Where
- 2 sites in China
- Volunteers
- 868 people
- Sponsor
- Xuanwu Hospital, Beijing
Cerebrovascular Circulation
Cerebral Perfusion in Hypothermic Circulatory Arrest
Selective antegrade cerebral perfusion (sACP) during aortic arch surgery in hypothermic circulatory arrest (HCA) is an established method for intraoperative neuroprotection.
- Trial name
- NCT03484104
- Testing
- Measurement of tissue oxygenation index (TOI)
- Where
- 2 sites in Switzerland
- Volunteers
- 40 people
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Astrocytoma, Glioblastoma
Detecting Malignant Brain Tumor Cells in the Bloodstream During Surgery to Remove the Tumor
Glioblastomas, the most frequent malignant brain tumor in adults, are widespread in the brain, despite their discrete appearance on computed tomography (CT) or magnetic resonance imaging (MRI).
- Conditions
- Astrocytoma, Glioblastoma, Glioma
- Trial name
- NCT00001148
- Where
- United States
- Volunteers
- 25 people
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Multiple Sclerosis
The Effect of Sildenafil Citrate (Viagra® (Registered Trademark)) on Brain Blood Flow in Multiple Sclerosis Patients
This study will determine whether sildenafil citrate, commonly known as Viagra, can cause increased blood flow to the brain in a wide range of multiple sclerosis (MS) patients, including women.
- Trial name
- NCT00094068
- Where
- United States
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)