Clinical trials: Healthy Brain Perfusion
Alzheimer's Disease
Statin Effects on Beta-Amyloid and Cerebral Perfusion in Adults at Risk for Alzheimer's Disease
The purpose of the research is to see how simvastatin affects a substance in the body called beta-amyloid. Beta-amyloid is found in the brain and in the liquid around the brain and spinal cord.
- Trial name
- SHARP (NCT00939822)
- Testing
- Simvastatin
- Where
- United States
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Parkinson Disease
How the Loss of Dopamine and Dopamine-Restoring Medicines Affect Movement Performance
This study has two purposes: 1) to understand the effect of a decline of dopamine in the brain during normal aging and in patients with Parkinson's disease, and 2) to investigate how medicines used to treat Parkinson's disease…
- Trial name
- NCT00040196
- Where
- United States
- Volunteers
- 133 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Sleep Deprivation
Effects of Sleep Deprivation and Recovery on Cognitive Functions
This study will measure brain activity in individuals performing language tasks while in various states of alertness to learn more about how the central nervous system is affected by impairments such as sleepiness.
- Trial name
- NCT00179322
- Where
- United States
- Volunteers
- 29 people
- Sponsor
- National Institute on Deafness and Other Communication Disorders (NIDCD)
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)
Glymphatic System, Neurodegeneration
Acute Effects of Vigorous-intensity Aerobic Exercise on Glymphatic Flow in Healthy Adults
This study investigates changes in glymphatic flow in the brain acutely after vigorous-intensity steady-state aerobic exercise. Twenty subjects (10 male and 10 female) perform 25 minute submaximal cycle ergometry exercise and the…
- Trial name
- GLYMREG (NCT04255758)
- Testing
- Cycle Ergometer Exercise
- Where
- Finland
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Turku University Hospital
Microvascular Disease, Microvascular Complications
Comparison of Differencens in VO2-max, Perfusion of the Heart and Brain and Cognitive Performance Between Patients with Type 2 Diabetes and Healthy Age Matched Controls.
In the aging population, ischemic heart disease, stroke and dementia are increasingly prevalent. Diagnosis and treatment of the former two i.e., large-vessel coronary heart disease and endovascular thrombectomy of the brain in…
- Conditions
- Microvascular Disease, Microvascular Complications, Dementia, Diabetes Mellitus Type 2
- Trial name
- SVAT (NCT06628297)
- Testing
- PET
- Where
- Denmark
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- University Hospital Bispebjerg and Frederiksberg
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)
COPD, Cognitive Impairment
Cerebral and Cardiac Blood Flow During Exercise in Patients With COPD
Heart disease and conditions related to the blood vessels are responsible for a large proportion (over a quarter) of the deaths in people with chronic obstructive pulmonary disease (COPD).
- Trial name
- REFLEX-COPD (NCT04138563)
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Nottingham
Parkinson's Disease
A Study in Healthy Male Volunteers to Investigate a New Drug for the Treatment of Parkinson's Disease
The main purpose of the study is to identify the best dose of V81444 to use in future trials in patients with Parkinson's disease.
- Trial name
- NCT02764892
- Testing
- V81444
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Vernalis (R&D) Ltd
Multiple Sclerosis
MR Perfusion Imaging and Hypercapnia (Increased Carbon Dioxide) to Study New Blood Vessel Formation in Multiple Sclerosis
This study will use magnetic resonance imaging (MRI) to examine and compare changes in blood flow and blood volume in the brains of normal volunteers and patients with multiple sclerosis (MS).
- Trial name
- NCT00064909
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- National Institutes of Health Clinical Center (CC)
Cognitive Aging
Effects of Blueberry Juice Consumption on Cognitive Function in Healthy Older People
Blueberries are rich in flavonoids that possess antioxidant and anti-inflammatory properties, which in rodent models are neuro-protective.
- Trial name
- NCT02985580
- Testing
- Blueberry
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- University of Exeter
Healthy Brain Perfusion
Improving Human Cerebrovascular Function Using Acute Intermittent Hypoxia
This study uses magnetic resonance imaging to determine whether 3 weeks of repeated exposure to Acute Intermittent Hypoxia can improve brain blood flow or blood flow regulation in healthy adults.
- Trial name
- NCT05164705
- Testing
- Acute Intermittent Hypoxia
- Where
- United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Northwestern University
Coronary Heart Disease, Healthy Control
Periodization of Exercise Training in Patients With Coronary Heart Disease.
The research project includes two components that assess exercise physiology parameters, cerebrovascular reserve, cognitive functions and cardiac function in coronary heart disease patients at rest, during an acute exercise, and…
- Trial name
- PERIOD (NCT03443193)
- Testing
- Exercise training
- Where
- Canada
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Montreal Heart Institute
Genetic Predisposition to Disease, Healthy Volunteers
This Study Consists of Two Study Parts Conducted Under a Single IRB. Part I: Short Term ApoE-dependent Cerebral Blood Flow Response to Sirolimus in Cognitively Normal Adults Part II: Short Term ApoE-dependent Cerebral Blood Flow and Lung Perfusion Response to Sirolimus in Cognitively Normal Adults
This study consists of two study parts (Part I and Part II) conducted under a single IRB approval. Individuals that participated in Part I of the study were invited to participate in Part II of the study.
- Trial name
- NCT05386914
- Testing
- Sirolimus
- Where
- United States
- Volunteers
- 205 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Alzheimer Disease, Dementia
Evaluation of Age- and Alzheimer's Disease-Related Memory Disorder
The purpose of this study is to examine how a part of the brain called the hippocampus contributes to memory changes that occur with aging and Alzheimer's disease (AD). Memory problems are the most important early symptoms of AD.
- Conditions
- Alzheimer Disease, Dementia, Memory Disorder, Healthy
- Trial name
- NCT00029120
- Where
- United States
- Volunteers
- 450 people, healthy volunteers welcome
- Sponsor
- National Institute of Mental Health (NIMH)
Healthy, Hypercapnia
Study of Brain Blood Flow During Induced Hypercapnia (Excess Blood Carbon Dioxide)
This study will evaluate magnetic resonance imaging (MRI ) methods for measuring changes in the brain's blood flow during hypercapnia (a condition of excess carbon dioxide in the blood).
- Trial name
- NCT00001845
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
Healthy
Effect of Cherry Concentrate on Brain Activation and Perfusion in Healthy Older Adults
Effect of 8 weeks of cherry concentrate supplementation on cognitive function and brain perfusion in healthy older adults
- Trial name
- NCT03547102
- Testing
- Cherry concentrate
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Exeter
Healthy, Lactate Blood Increase
The Lactate Project: Investigating the Impact of Lactate to Preserve Vital Organ Blood Supply and Function in Heart and Brain
The aim of the proposed study is to investigate the effect of increased plasma lactate concentrations on the heart and brain's metabolism of other energy sources, primarily glucose in the brain and glucose and FFA in the heart.
- Trial name
- NCT06665763
- Testing
- Sodium Lactate Solution
- Where
- 2 sites in Denmark
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Healthy
Comparison of Magnetic Resonance Techniques for the Measurement of Cerebral Blood Perfusion
In this project, we aim at implementing a te-ASL sequence and to compare it to two reference ASL sequences with a fixed PLD on healthy individuals.
- Trial name
- NCT04486248
- Where
- Spain
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Barcelonabeta Brain Research Center, Pasqual Maragall Foundation