Clinical trials: Cerebral Blood Flow, open to volunteers
Inactivity/Low Levels of Exercise
Handgrip Training and Brain Blood Flow Regulation
This study aims to investigate the effect of isometric handgrip training on brain blood vessel function in physically inactive adults.
- Trial name
- NCT07223645
- Testing
- Handgrip Training
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Florida State University
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
Brain Blood Flow Impairment
Longitudinal Investigation of Brain Blood Flow Changes in Neurosurgical Patients
Primary study objective: Longitudinal observation of brain blood flow changes in neurosurgical patients with or without a neurosurgical intervention as compared to a healthy cohort.
- Trial name
- NCT04668261
- Testing
- Advanced imaging investigation
- Where
- Switzerland
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Healthy Subjects/Volunteers
Effects of Combined Heat Application and Acupressure to the Carotid Artery Region on Cerebral Blood Flow in Healthy Adults
The aim of this study is to investigate the effects of combined heat application and acupressure to the carotid artery region on cerebral blood flow in healthy adults
- Trial name
- NCT07324226
- Testing
- Combined heat and acupressure
- Where
- South Korea
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Pusan National University Yangsan Hospital
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
Obstructive Sleep Apnea (OSA)
Heart and Brain Blood Flow in Obstructive Sleep Apnea
Obstructive sleep apnea causes repeated pauses in breathing during sleep. Breathing efforts against an occluded airway may change how blood flows through the heart and how blood drains from the brain.
- Trial name
- OSA4DFlow (NCT07913269)
- Where
- 2 sites in Denmark
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Metabolic Syndrome
Human Cerebrovascular Blood Flow and Sex Differences in Metabolic Syndrome
This study tests the hypothesis that Metabolic Syndrome (MetSyn) decreases cerebral blood flow (CBF) more in females than males due in part to the sex-specific loss of COX vasodilation.
- Trial name
- NCT07218653
- Testing
- Indomethacin, MRI
- Where
- United States
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Healthy Volunteer
Studies of Blood Flow to the Brain During Thought
The purpose of this study is to use brain imaging technology to measure changes in blood flow to areas in the brain as individuals perform intellectual tasks.
- Trial name
- NCT00001360
- Where
- United States
- Volunteers
- 4,100 people, healthy volunteers welcome
- Sponsor
- National Institute of Mental Health (NIMH)
Brain Insulin-sensitivity, Brain Vascular Function
Effects of Wild Blueberry Consumption on Brain Function in Elderly
Impaired brain vascular function precedes the development of reduced cognitive performance, while brain insulin-resistance is associated with cognitive decline.
- Conditions
- Brain Insulin-sensitivity, Brain Vascular Function, Cerebral Blood Flow
- Trial name
- NCT07177781
- Testing
- Wild blueberry powder
- Where
- Netherlands
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Hypotension (MeSH: D007022)
Carotid Artery Blood Flow, Blood Pressure, and Cardiac Output During Anesthesia in Children Aged 0-5 Years
Blood pressure is routinely monitored during anesthesia in children, but blood pressure alone may not accurately reflect blood flow to vital organs.
- Trial name
- CARFLOW (NCT07847203)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Karolinska Institutet
Gender Dysphoria
Brain Health in Transgender Adults
The purpose of this study is to test whether and how a person's brain changes in the first few months after starting gender affirming hormone therapy (GAHT).
- Trial name
- NCT07624747
- Testing
- Magnetic Resonance Imaging, Cognition and Health Tests, Optional Exercise Test
- Where
- United States
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Healthy, Brain Insulin Sensitivity
Long-Term Effects of Walnut Consumption on Brain Function
Rationale: Healthy foods, including mixed nuts, may improve brain function, which is essential for cognitive and metabolic health, and may contribute to improved food intake regulation.
- Conditions
- Healthy, Brain Insulin Sensitivity, Cerebral Blood Flow, Brain Vascular Function
- Trial name
- WalBrain (NCT07422220)
- Testing
- Walnuts
- Where
- Netherlands
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Brain Vascular Function, Cognitive Function
Effects of Protein Supplementation on Brain Function
Protein-rich foods may improve brain insulin-sensitivity, which is important for cognitive and metabolic health, and may also translate into an improved food intake regulation.
- Conditions
- Brain Vascular Function, Cognitive Function, Satiety, Cerebral Blood Flow
- Trial name
- NCT07057245
- Testing
- Protein supplementation with an animal-based protein isolate, Protein supplementation with a plant-based protein isolate, Control arm - cornstarch
- Where
- Netherlands
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
High Altitude Hypoxia, Exercise
Ketone Monoester Supplements, High Altitude, and Brain Blood Flow During Exercise
The purpose of this trial is to investigate the effect of acute ketone monoester ingestion (0.6 g KME/kg body weight) on the occurrence of the ventilatory threshold and the subsequent response of blood velocity in cerebral…
- Trial name
- NCT07063732
- Testing
- Ketone Monoester (KME)
- Where
- 2 sites in United States, Canada
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- McMaster University
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
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
Magnetic Resonance Imaging, Cerebrovascular Circulation
Brain Blood Vessel Responses to Changes in Blood Flow: Younger Cohort
Brain blood flow will be measured during a simulated postural change test and while breathing increased levels of carbon dioxide using magnetic resonance imaging.
- Trial name
- NCT06629090
- Testing
- MRI, Prazosin
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
CSF Leak, CSF Pressure Increased
Conservative vs Interventional Management of Postsurgical CSF Pseudomeningocele
Dear Sir or Madam, You have been invited to participate in a clinical study whose aim is to compare the effectiveness of two different approaches to the treatment of cerebrospinal fluid (CSF) pseudomeningocele - conservative…
- Conditions
- CSF Leak, CSF Pressure Increased, CSF Circulation Disorder, Puncture
- Trial name
- PSEUDO (NCT07614399)
- Testing
- Lumbar Drainage, Pseudomeningocele Puncture, Puncture with Fibrin Glue Application
- Where
- Czechia
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Charles University, Czech Republic
Hodgkin Lymphoma, Adult
Cardiopulmonary Function and Cerebral Blood Flow in Hodgkin Lymphoma Survivors
SURVIVORS Study participants are being asked to take part in this research study called HODNIRS because the participant is a survivor of Hodgkin Lymphoma (HL) treated with chest radiation and bleomycin at St.
- Trial name
- NCT06421987
- Testing
- Near Infrared Spectroscopy (NIRS)
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- St. Jude Children's Research Hospital
Hypoglycemia, Cerebral Blood Flow
External Carotid Blood Flow in Individuals With Post-Bariatric Hypoglycemia
This is a pilot study (small-scale study) that aims to understand more about how blood flow changes in people who have low blood sugar after bariatric surgery (post-bariatric hypoglycemia) compared to those who have had surgery…
- Trial name
- NCT07082478
- Testing
- in-ear device measuring blood flow
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- Joslin Diabetes Center