Clinical trials: Cerebrovascular Circulation
Major Depression, Anxiety Disorder
Photobiomodulation to Alter Cerebral Blood Flow and to Affect the Emotional Status of Patients With Major Depression
A pilot study to evaluate the ability of photobiomodulation to alter cerebral blood flow in the frontal poles and to affect the emotional status of patients with major depression.
- Conditions
- Major Depression, Anxiety Disorder, Post-Traumatic Stress Disorder, Substance Abuse Disorder
- Trial name
- NCT00961454
- Testing
- Photobiomodulation with a super-luminous light emitting diode
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Massachusetts General Hospital
Ischemic Stroke, Acute, Thrombectomy
CO2 Modulation in Endovascular Thrombectomy for Acute Ischemic Stroke
Acute ischemic stroke due to large vessel occlusion is responsible of cerebral blood flow impairment with a progressive and extensive ischemic process.
- Conditions
- Ischemic Stroke, Acute, Thrombectomy, Anesthesia, General, Cerebrovascular Circulation
- Trial name
- COMET-AIS (NCT05051397)
- Testing
- HYPERCAPNIA, NORMOCAPNIA
- Where
- France
- Volunteers
- 50 people
- Sponsor
- University Hospital, Clermont-Ferrand
Stroke
Reperfusion Completion Via Local Arterial Infusion of Tenecteplase After Incomplete Mechanical Thrombectomy
To evaluate the efficacy and safety of intra-arterial TNK bridging therapy following incomplete recanalization (2b ≤ eTICI < 3) after mechanical thrombectomy for acute anterior circulation large vessel occlusion.
- Trial name
- RECLAIM-TNK (NCT07471282)
- Testing
- Tenecteplase (0.0938mg/kg)
- Where
- China
- Volunteers
- 344 people
- Sponsor
- Chuansheng Zhao
Ischemic Stroke
iTBS for Acute Ischemic Stroke After Thrombectomy
The goal of this randomized, single-blind, parallel-controlled clinical trial is to evaluate the efficacy and safety of intermittent theta burst stimulation (iTBS) as an adjunctive therapy for acute anterior circulation ischemic…
- Trial name
- NCT06941961
- Testing
- intermittent theta burst stimulation
- Where
- China
- Volunteers
- 178 people
- Sponsor
- Yi Yang
Traumatic Brain Injury
tPBM in Older Adults With Traumatic Brain Injury
The purpose of this study is to evaluate the effect of transcranial photobiomodulation (tPBM) in older patients with chronic traumatic brain injury (TBI).
- Trial name
- NCT06956404
- Testing
- Transcranial photobiomodulator (tPBM)
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- NYU Langone Health
Multiple Sclerosis
Cerebral Blood Flow and tDCS
With this study, the investigators will substantiate if regional cerebral blood flow (CBF) is affected by tDCS, assess the amount of CBF change in relation to different currents, and measure differences in regional CBF under…
- Trial name
- NCT04033133
- Testing
- tDCS
- Where
- United States
- Volunteers
- 3 people, healthy volunteers welcome
- Sponsor
- University of Iowa
Dementia
EEG Biofeedback to Improve Memory in Adults With Dementia
This study measures whether the symptoms of frontotemporal dementia (FTD) can be successfully treated by (a) biofeedback training to increase brain blood flow, (b) biofeedback to increase the frequency of the brain's dominant…
- Trial name
- QMFFTD (NCT01168466)
- Testing
- QEEG-based Neurofeedback Training
- Where
- United States
- Volunteers
- 37 people
- Sponsor
- Quietmind Foundation
Magnetic Resonance Imaging, Cerebrovascular Circulation
Brain Blood Vessel Responses to Changes in Blood Flow
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
- NCT06629077
- Testing
- MRI, Prazosin
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Stroke, Acute Ischemic
Tirofiban for Successful Endovascular Stroke Thrombectomy
Up to 50% of acute ischemic stroke patients with large vessel occlusion failed to achieve functional independence even after successful reperfusion therapy, a phenomenon that is referred to as "futile recanalization".
- Trial name
- ADJUVANT-2 (NCT06373042)
- Testing
- Intraarterial and intravenous tirofiban
- Volunteers
- 712 people
- Sponsor
- Zhongming Qiu
Hypoxia, Brain
Supplementation of 500mg Trans-resveratrol Within Hypoxic and Normoxic Conditions, in Healthy Humans.
Objectives: Resveratrol, a non-flavonoid polyphenol, has been found to consistently modulate cerebral blood flow (CBF) following oral supplementation.
- Trial name
- NCT03100019
- Testing
- Resveratrol
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Northumbria University
Ischemic Stricture of Intestine
Safety and Effectiveness Evaluation of the ISS System in Treatment of Acute Ischemic Stroke
The primary objective of this pilot study is the assessment of the safety of the ISS500 System in patients who have experienced an acute ischemic stroke within the anterior circulation.
- Trial name
- ImpACT-1 (NCT03733236)
- Testing
- ISS Active Stimulation
- Where
- 2 sites in India
- Volunteers
- 98 people
- Sponsor
- BrainsGate
High Altitude Pulmonary Edema
Prevention of High Altitude Pulmonary Edema
A double-blind placebo controlled study To compare the effect of tadalafil and dexamethasone versus placebo on Ppa and pulmonary edema formation in subjects susceptible to HAPE.
- Trial name
- NCT00274430
- Testing
- dexamethasone 8 mg bid, tadalafil 10mg bid
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Zurich
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
Cerebral Hypoxia
The Effects of Hypobaria vs Hypoxia on Cerebral Functions.
The investigators will investigate the effect of hypobaria and hypoxia on physiological responses such as: oxygen saturation, heart rate, cerebral blood flow, cerebral oxygenation, brain's activity and concentration performance.
- Trial name
- Hypoxia (NCT03303118)
- Testing
- Hypoxia
- Where
- Switzerland
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Fliegerärztliches Institut
Hyperventilation, Aneurysmal Subarachnoid Hemorrhage
Drug Intervention of Spontaneous Hyperventilation in Patients With Aneurysmal Subarachnoid Hemorrhage
Although spontaneous hyperventilation patients with aneurysmal subarachnoid hemorrhage closely associated with poor outcomes, the standard therapy remains unavailable.
- Conditions
- Hyperventilation, Aneurysmal Subarachnoid Hemorrhage, Cerebral Blood Flow
- Trial name
- NCT04940273
- Testing
- Remifentanil Injection [Ultiva]
- Where
- China
- Volunteers
- 30 people
- Sponsor
- Capital Medical University
Glymphatic Flow
MRI of Glymphatic Clearance During Anesthetic Sedation
This study is to assess the effect of dexmedetomidine anesthesia on glymphatic flow in 5 healthy human subjects as visualized by diffusion tensor MRI.
- Trial name
- NCT02768688
- Testing
- Brain connectivity and physiology, Dexmedetomidine
- Where
- United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
Blood Flow, Cerebral Oxygenation
MRI Assesment of Cerebral Blood Flow in Anesthetized Children
Children undergoing magnetic resonance imaging (MRI) of the brain often need to be sedated to complete the examination, as it is difficult to remain still for a long period, which is required to obtain usable images.
- Conditions
- Blood Flow, Cerebral Oxygenation, Blood Pressure
- Trial name
- BAMBI (NCT06886698)
- Where
- Sweden
- Volunteers
- 30 people
- Sponsor
- Karolinska Institutet
Cardiovascular System
Effects of Caffeine on Cerebral Blood Flow
The goal of this clinical trial is to evaluate in clinically healthy young people if: after caffeine ingestion, there are variations in blood velocity of the middle cerebral arteries (VMCA), this variation is dependent on the…
- Trial name
- NCT05866848
- Testing
- Anhydrous caffeine (45mg), Anhydrous caffeine (120mg)
- Where
- Portugal
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Escola Superior de Tecnologia da Saúde de Coimbra
Social Anxiety Disorder (SAD)
Nefazodone in the Treatment of Social Phobia
The purpose of this study is to determine the effectiveness of nefazadone in patients with social anxiety disorder (SAD).
- Trial name
- NCT00231348
- Testing
- Nefazodone
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Emory University
Stroke, Ischemic, Intracranial Atherosclerosis
Comparison of Cerebral Artery Pressure Gradient and Cerebral Blood Flow Measured by Arterial Spin Labeling
The goal of this observational study is to explore the ability of intravascular pressure gradients to identify hemodynamic disturbance in patients with intracranial atherosclerotic diseases (ICAS).
- Trial name
- NCT05623943
- Testing
- Endovascular treatment
- Where
- China
- Volunteers
- 25 people
- Sponsor
- Xuanwu Hospital, Beijing