Clinical trials: Cerebrovascular Regulation
Hypoxia, Hypercapnia
Impact of NOS, COX, and ROS Inhibition on Cerebral Blood Flow Regulation
Elucidating cerebrovascular control mechanisms during physiologic stress may help identify novel therapeutic targets aimed at preventing or reducing the impact of cerebrovascular disease.
- Trial name
- NCT03066115
- Testing
- L-NMMA, Ketorolac, Ascorbic Acid
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
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.
Cerebrovascular Disorders
Identification of microRNAs Involved in Cerebral Collateral Regulation
Patients >18 years of age presenting to Ohio State Wexner Medical Center Emergency department with stroke symptoms, within 6 hours of last know well and found to have acute anterior circulation large vessel occlusion (LVO) will…
- Trial name
- microRNA (NCT03905434)
- Testing
- miRNA sampling
- Where
- 2 sites in United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Virginia Commonwealth University
Cerebrovascular Disorders
Brain Blood Flow Responses to Stress: Sex Differences
Twenty-six otherwise healthy adults between 18-40 years of age composed of 13 males and 13 females will be enrolled in this study to determine how sex and sex hormones influence cerebral blood flow (CBF) control in healthy young…
- Trial name
- NCT06253702
- Testing
- Indomethacin, Orilissa, Testosterone gel
- Where
- United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Menopause, Estrogen Deficiency
Ovarian Hormone Regulation of Central and Cerebrovascular Hemodynamics (NoMEN Study)
This study will evaluate changes in blood vessels around the heart (e.g., aorta and carotid arteries) and in the brain with the loss of female sex hormones (e.g., estrogen) during the menopause transition.
- Conditions
- Menopause, Estrogen Deficiency, Women, Aging
- Trial name
- NCT05057546
- Testing
- GnRH antagonist
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Healthy
Evaluating Q-Collar Effects on Brain Blood Flow Control During Exercise
The goal of this clinical trial is to learn how the FDA-cleared Q-Collar device affects brain blood flow regulation during rest and exercise in healthy adults. The main questions this study aims to answer are: 1.
- Trial name
- NCT06826781
- Testing
- Q30 Q-Collar, Not wearing Q-Collar
- Where
- United States
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Spaulding Rehabilitation Hospital
Cerebrovascular Disorders
HYPEROXIA Responses and ROS
30 participants (15 males and 15 females) who are ≥18 - ≤ 40 years old and considered healthy will be enrolled into this study to test the role of reactive oxygen species (ROS) in regulating cerebral blood flow (CBF).
- Trial name
- NCT05958303
- Testing
- Antioxidant Cocktail
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
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
Parkinson Disease (PD)
Synthetic Vasomotion for Glymphatic Enhancement
The goal of this pilot clinical trial is to learn whether a week-long study combining controlled breathing procedures, intermittent exposure to a low-concentration carbon dioxide gas mixture, and noninvasive vagus nerve…
- Trial name
- NCT07814534
- Testing
- Active noninvasive vagus nerve stimulation, Active intermittent hypercapnia, Guided breathing
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Florida Institute for Human and Machine Cognition
Cerebral Arterial Diseases
Human Cerebral Blood Flow Regulation
To determine cerebrovascular control mechanisms in humans and provide mechanistic knowledge to offer new sex-specific therapeutic options for cerebrovascular diseases.
- Trial name
- Gas Challenge (NCT04265053)
- Testing
- Indomethacin 25 MG/50 MG
- Where
- United States
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Sleep Disorders, Intrinsic
Cerebral Hemodynamics in Sleep Disorders
The purpose of this study is to determine the relationship between sleep disorders and cerebral hemodynamics.
- Trial name
- NCT02752139
- Where
- China
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Yi Yang
Atrial Fibrillation, Arrhythmia
Epigenetic Analysis of Regulation of the Inflammasome-activating NLRP3 Gene in Monocytes From Atrial Fibrillation Patients and Controls
The study will analyze blood from volunteers to determine whether there is an underlying epigenetic cause of the inflammation of the heart associated with atrial fibrillation (AF) and its progression with age.
- Trial name
- NCT04766814
- Where
- United States
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Tulane University