Clinical trials: Cerebrovascular Circulation
Concussion
Vascular Assessment of Regulation Index Arrays Registry
The objective of this patient registry is to collect and analyze physiological data associated with baseline and brain injury identified in standard clinical practice (Normal Values, Recovery Curves, Correlation between Symptoms…
- Trial name
- VARIA (NCT02435082)
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- NeuroChaos Solutions, Inc.
Fabry Disease, Healthy
PET Scans in Normal Volunteers and Patients With Fabry Disease
This study will determine the rate of sugar metabolism in the brain of patients with Fabry disease, a genetic disease of abnormal lipid metabolism.
- Trial name
- NCT00005111
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Anesthesia, General, Infant
Impact of CO2 on Cerebral Blood Flow in Infants Less Than 6 Months During General Anaesthesia
The study aims at assessing cerebral blood flow variations following expired CO2 variations in anaesthetized infants less than 6 months, during a routine general anesthesia.
- Trial name
- NCT03567031
- Testing
- EtCO2 modification
- Where
- Canada
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- St. Justine's Hospital
Cerebrovascular Regulation
Brain Blood Flow Responses at Rest and During Exercise
Tight regulation of brain blood flow is integral for delivery of oxygen and energy for survival. During childhood, the brain has a twofold higher metabolic requirement, thus requires greater blood flow to match this.
- Trial name
- NCT06142045
- Testing
- RespirACT RA-MR System
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Autism
MRI Study of Cerebral Blood Flow in Development Disorders in Children
The purpose of this study is reproduce the individual detection results by PET with Arterial Spin Labeling (ASL) MRI, to establish a biomarker useful in autism diagnosis.
- Trial name
- IRM-Aut (NCT02165410)
- Testing
- ASL-MRI, Diffusion tensor imaging (diffusion MRI), Resting state MRI
- Where
- France
- Volunteers
- 115 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Normal Human Subjects
Single Photon Emission Computed Tomography of the Normal Human Brain
The objective of the study is to acquire a database of Single Photon Emission Computed Tomographic (SPECT) studies of the brains of normal human subjects in resting and concentrating states.
- Trial name
- NCT01203891
- Where
- United States
- Volunteers
- 97 people, healthy volunteers welcome
- Sponsor
- Amen Clinics, Inc.
Cerebral Blood Flow, Cerebral Blood Flow Regulation
The Role of Estrogen and Testosterone in Determining Brain Blood Flow and Metabolic Regulation in Humans
Due to historical exclusion of females from research, there are gaps in the understanding of female physiology, how it differs from males, and how sex-specific hormones contribute.
- Conditions
- Cerebral Blood Flow, Cerebral Blood Flow Regulation, Sex Differences, Exercise
- Trial name
- NCT07212712
- Testing
- GnRH antagonist, Estradiol (E2), Testosterone
- Where
- Canada
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Premature Birth
Cerebral Blood Flow Parameters and Neurobehavioral Development in Infants at Term Age
Although several studies have contrasted the hemodynamics of cerebral arteries using cranial Doppler ultrasound between full-term and preterm infants, the assessments were mostly conducted in the first days of life.
- Trial name
- NCT00676247
- Where
- Taiwan
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Preterm Children
Neonatal Cerebral Blood Flow and the Neurobehavioral and Handedness Outcomes in Term and Preterm Adolescents
The results will provide insightful information to understand the process of neural development and the predictive value of early cerebral blood flow measures on longitudinal neurodevelopment and handedness outcomes in preterm…
- Trial name
- NCT04708652
- Testing
- No intervention
- Volunteers
- 190 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Cerebrovascular Disorder, Healthy
Magnetic Resonance Imaging Studies of Motor and Thought Processes
Magnetic resonance imaging (MRI) is a diagnostic tool that creates high quality images of the human body without the use of X-ray (radiation).
- Conditions
- Cerebrovascular Disorder, Healthy, Movement Disorder, Nervous System Disease
- Trial name
- NCT00001361
- Where
- United States
- Volunteers
- 610 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Altitude Training Adaptation, Cognitive Function
Effects of Bicarbonate Spring Water Immersion on Cognitive Reliability and Post-Maximal Exercise Recovery in Adolescent Rowers During Altitude Training: A Sex-Stratified Three-Arm Randomized Controlled Trial
This randomized controlled trial aims to investigate the effects of hot spring bath therapy on cognitive function recovery, cerebral hemodynamics, and athletic performance in athletes undergoing altitude training.
- Conditions
- Altitude Training Adaptation, Cognitive Function, Cerebral Hemodynamics, Exercise Performance
- Trial name
- NCT07608913
- Testing
- Control Group：Natural Recovery, Hot water immersion group, hot spring immersion group
- Where
- China
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Macao Polytechnic University
Brain Injuries, Cerebrovascular Disorders
Measuring Blood Flow Characteristics Using Dynamic Contrast Enhanced Magnetic Resonance Imaging
Dynamic contrast-enhanced (DCE) MRI gives quantitative and semi-quantitative information about the integrity of the vascular system and can be used to quantify blood-brain barrier (BBB) integrity.
- Trial name
- NCT02702635
- Testing
- DCE MRI of the brain
- Where
- United States
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- Loma Linda University
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)
Preterm, Patent Ductus Arteriosus
NeoDoppler: New Ultrasound Technology for Continuous Monitoring of Cerebral Circulation Pilot
Non-invasive tools for monitoring of course of disease are important and necessary in the treatment of pre-term/premature infants and sick neonates.
- Conditions
- Preterm, Patent Ductus Arteriosus, Sepsis, Asphyxia
- Trial name
- CE-NeoDoppler (NCT06646250)
- Testing
- NeoDoppler - CE certified
- Where
- Norway
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- St. Olavs Hospital
Polycystic Ovary Syndrome, Exercise
The Effects of High-intensity and Moderate-intensity Exercise on Polycystic Ovary Syndrome
This study will investigate the impact of high- and moderate-intensity exercise on the cardiometabolic and brain health of women with Polycystic Ovary syndrome (PCOS).
- Conditions
- Polycystic Ovary Syndrome, Exercise, Cerebrovascular Circulation
- Trial name
- NCT05394935
- Testing
- High-Intensity Exercise, Moderate-Intensity Exercise
- Where
- United Kingdom
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Cardiff Metropolitan University
Healthy, Mood Disorders
Effects of Drugs on Cerebral Blood Flow in Patients With Mood Disorders
Positron Emission Tomography (PET) is a technique used to investigate the functional activity of the brain. The PET technique allows doctors to study the normal biochemical and metabolic processes of the central nervous system of…
- Trial name
- NCT00001478
- Where
- United States
- Volunteers
- 170 people, healthy volunteers welcome
- Sponsor
- National Institute of Mental Health (NIMH)
Child, Only, Essential Hypertension
Juvenile Essential Arterial Hypertension and Vascular Function
The main goal of this study is to investigate the association of the juvenile essential arterial hypertension with systemic micro- and macrovascular reactivity and cerebral vascular function, and to examine the potential impact…
- Trial name
- NCT05109013
- Where
- Croatia
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Josip Juraj Strossmayer University of Osijek
Cerebrovascular Disorder, Epilepsy
Brain Blood Flow Studies of Language and Memory
Positron Emission Tomography (PET) is a technique used to investigate the functional activity of the brain. The PET technique allows doctors to study the normal processes of the brain (central nervous system) of normal…
- Trial name
- NCT00001288
- Testing
- 15 O Water, FDG
- Where
- United States
- Volunteers
- 303 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Obstructive Sleep Apnea Syndrome
Cerebral Blood Flow and Childhood Obstructive Sleep Apnea
Obstructive sleep apnea syndrome (OSAS) causes hypoxemia and hypercapnia, which may impair cerebral blood flow and cause deficits in behavior.
- Trial name
- NCT02995837
- Testing
- Sleep Study, Neurocognitive Testing, CBF During Wakefulness
- Where
- United States
- Volunteers
- 47 people, healthy volunteers welcome
- Sponsor
- Children's Hospital of Philadelphia
Healthy, Hypercapnia
Role of Prostaglandins in the Regulation of Brain Blood Flow
This study will use magnetic resonance imaging (MRI) to examine the role of prostaglandins-a type of fatty acid with hormone-like actions-in the regulation of brain blood flow.
- Trial name
- NCT00006318
- Where
- United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)