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Showing 1–24 of 60 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Transcranial Doppler Clear all
Completed Not applicable Interventional Results available

RoBotic TCD Ultrasound BubbLe Study Compared to Transthoracic Echocardiography for Detection of Right to Left Shunt

NCT04604015
View directory record Official record
Conditions
Embolic Stroke of Undetermined Source, Transient Ischemic Attack, Right-To-Left Atrial Shunt, Patent Foramen Ovale
Interventions
NeuralBot Investigational System, Transthoracic Echocardiography (TTE)
Diagnostic Test
Lead sponsor
NeuraSignal Inc dba NovaSignal
Industry
Eligibility
18 Years and older
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
7
States / cities
Phoenix, Arizona • Portland, Oregon • Chattanooga, Tennessee + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 23, 2024 · Synced Sep 1, 2026, 9:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Translational Research Examining Acupuncture Treatment in Traumatic Brain Injury

NCT02623218
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Acupuncture, Sham Acupuncture
Device
Lead sponsor
AOMA Graduate School of Integrative Medicine
Other
Eligibility
18 Years to 50 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Sep 1, 2026, 9:51 AM EDT
Recruiting Not applicable Interventional

Respiratory Muscle Training to Improve Cerebrovascular and Immune Function

NCT07406295
View directory record Official record
Conditions
Obesity, Cerebrovascular Function, Immune Cells Activity
Interventions
High intensity inspiratory muscle strength training, Low intensity
Device
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 45 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Sep 1, 2026, 9:51 AM EDT
Terminated Phase 3 Interventional

Right to Left Cardiac Shunt Detection

NCT01773252
View directory record Official record
Conditions
Right to Left Shunt, Patent Foramen Ovale, Atrial Septal Defect
Interventions
Flow Detection System
Device
Lead sponsor
Cardiox Corporation
Industry
Eligibility
18 Years and older
Enrollment
141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
8
States / cities
Phoenix, Arizona • Los Angeles, California • Aurora, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 12, 2015 · Synced Sep 1, 2026, 9:51 AM EDT
Terminated No phase listed Observational Results available

Variability in Transcranial Doppler Technique in Neuro-Critical Care Patients

NCT04583163
View directory record Official record
Conditions
Cerebral Aneurysm, Stroke, Vasospasm, Cerebral, Subarachnoid Hemorrhage, Aneurysmal, Aneurysmal Subarachnoid Hemorrhage, Cerebral Ischemia
Interventions
Transcranial Doppler
Diagnostic Test
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
18 Years and older
Enrollment
3 participants
Timeline
2020 – 2022
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 14, 2025 · Synced Sep 1, 2026, 9:51 AM EDT
Terminated Phase 3 Interventional Results available

Study to Evaluate the Effect of GBT440 on TCD in Pediatrics With Sickle Cell Disease

NCT04218084
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Voxelotor, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
2 Years to 14 Years
Enrollment
236 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
13
States / cities
Washington D.C., District of Columbia • Miami, Florida • Atlanta, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Sep 1, 2026, 9:51 AM EDT
Active, not recruiting Phase 2 Interventional

Stroke Prevention With Hydroxyurea Enabled Through Research and Education (SPHERE)

NCT03948867
View directory record Official record
Conditions
Sickle Cell Anemia in Children
Interventions
Hydroxyurea, Elevated Arm TCD Examination, Normal Arm TCD Examination
Drug · Diagnostic Test
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
2 Years to 16 Years
Enrollment
202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Sep 1, 2026, 9:51 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Transcranial Doppler(TCD) Evaluation of High Intensity Transient Signals and Carotid Disease

NCT05829200
View directory record Official record
Conditions
Asymptomatic Carotid Stenosis, Symptomatic Carotid Stenosis, TCD, HITS
Interventions
Transcranial Doppler (TCD)
Device
Lead sponsor
Ochsner Health System
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Apr 24, 2023 · Synced Sep 1, 2026, 9:51 AM EDT
Completed No phase listed Observational

Transcranial Doppler Ultrasound Monitoring During Flow-Diverter Embolization

NCT02354300
View directory record Official record
Conditions
Intracranial Aneurysm, Aneurysm, Intracranial, Giant Intracranial Aneurysm
Interventions
TCD Ultrasound
Device
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 25, 2016 · Synced Sep 1, 2026, 9:51 AM EDT
Completed Not applicable Interventional

DCS Study in Extremely Premature Newborns

NCT04367181
View directory record Official record
Conditions
Premature Birth, Extremely Low Birth Weight, Infant, Small for Gestational Age, Intracerebral Hemorrhage
Interventions
Diffuse Correlation Spectroscopy (DCS), Amplitude Integrated Electroencephalography (aEEG)
Device
Lead sponsor
Maria Angela Franceschini
Other
Eligibility
0 Hours to 72 Hours
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Sep 1, 2026, 9:51 AM EDT
Not listed Not applicable Interventional

The Use of Transcranial Ultrasound Treatment of Obsessive-Compulsive Disorder

NCT04775875
View directory record Official record
Conditions
Obsessive-Compulsive Disorder
Interventions
Focused Ultrasound
Device
Lead sponsor
Neurological Associates of West Los Angeles
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
2
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Sep 27, 2022 · Synced Sep 1, 2026, 9:51 AM EDT
Not listed Early Phase 1 Interventional

Open Label Study for the Use of Transcranial Ultrasound Treatment of Tremor

NCT05475340
View directory record Official record
Conditions
Tremor, Parkinson Disease, Essential Tremor
Interventions
Focused Ultrasound
Device
Lead sponsor
Neurological Associates of West Los Angeles
Other
Eligibility
18 Years to 90 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 25, 2023 · Synced Sep 1, 2026, 9:51 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Transcranial Doppler Using Wearable Ultrasound Patch

NCT06073145
View directory record Official record
Conditions
Medical Device Complication, Brain Injuries, Brain Diseases, Stroke, Vasospasm
Interventions
conventional transcranial Doppler probe and wearable ultrasound patch.
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 9, 2024 · Synced Sep 1, 2026, 9:51 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Vascular Disease in Aging and Dementia

NCT03075007
View directory record Official record
Conditions
Alzheimer Disease, White Matter Hyperintensities, Dementia, Aging
Interventions
Florbetaben F18, Transcranial Doppler
Radiation · Procedure
Lead sponsor
Columbia University
Other
Eligibility
60 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 11, 2019 · Synced Sep 1, 2026, 9:51 AM EDT
Terminated No phase listed Observational

BRAIN-HEART Ultrasound Study Normative Values for Transcranial Doppler Based Cerebral Blood Flow Assessment

NCT05924503
View directory record Official record
Conditions
Mechanical Circulatory Support
Interventions
Not listed
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Sep 1, 2026, 9:51 AM EDT
Completed No phase listed Observational

NOninVasive Intracranial prEssure From Transcranial doppLer Ultrasound Development of a Comprehensive Database of Multimodality Monitoring Signals for Brain-Injured Patients

NCT04548596
View directory record Official record
Conditions
Traumatic Brain Injury, Subarachnoid Hemorrhage, Intracerebral Hemorrhage, Liver Failure, Ischemic Stroke
Interventions
Transcranial Doppler
Diagnostic Test
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2025
U.S. locations
3
States / cities
Davis, California • San Francisco, California • Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 17, 2025 · Synced Sep 1, 2026, 9:51 AM EDT
Completed No phase listed Observational

Hemodynamic Effects on Cerebral Autoregulation in Acute Stroke

NCT02056821
View directory record Official record
Conditions
Ischemic Stroke
Interventions
Not listed
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years to 90 Years
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 3, 2017 · Synced Sep 1, 2026, 9:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

3-D Transcranial Ultrasound Analysis Study

NCT00239525
View directory record Official record
Conditions
Cerebrovascular Accident, Intracranial Hypertension
Interventions
3-D ultrasound scanner, Perflutren Protein-Type A Microspheres for injection
Device · Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2013
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 10, 2014 · Synced Sep 1, 2026, 9:51 AM EDT
Not listed Early Phase 1 Interventional

Open Label Study for the Use of Transcranial Ultrasound for Treatment of Age-Related Frailty

NCT04770350
View directory record Official record
Conditions
Frailty, Aging
Interventions
Focused Ultrasound
Device
Lead sponsor
Neurological Associates of West Los Angeles
Other
Eligibility
45 Years to 95 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Sep 27, 2022 · Synced Sep 1, 2026, 9:51 AM EDT
Recruiting No phase listed Observational

Automated Robotic TCD in Traumatic Brain Injury

NCT05848297
View directory record Official record
Conditions
Brain Injuries, Traumatic
Interventions
Transcranial Doppler ultrasonography (TCD)
Device
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Timeline
2025 – 2027
U.S. locations
3
States / cities
Davis, California • Winston-Salem, North Carolina • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 1, 2026, 9:51 AM EDT
Completed No phase listed Observational

Monitoring of Cerebral Blood Flow Autoregulation Using Near Infrared Spectroscopy

NCT00769691
View directory record Official record
Conditions
Cardiacsurgery
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
60 Years and older
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 21, 2017 · Synced Sep 1, 2026, 9:51 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Blood Brain Flow and Exercise

NCT02653638
View directory record Official record
Conditions
Cerebrovascular Circulation
Interventions
Control, Indomethacin
Other · Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 75 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Sep 1, 2026, 9:51 AM EDT
Recruiting No phase listed Observational

Brain Blood Flow and Cerebral Autoregulation Monitoring in Critically Ill Children

NCT07613918
View directory record Official record
Conditions
Critical Illness, Pediatric Critical Illness, Respiratory Failure, Traumatic Brain Injury, Cardiac Arrest
Interventions
Transcranial Doppler
Device
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
1 Day to 17 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 1, 2026, 9:51 AM EDT
Completed Phase 2 Interventional

Hydroxyurea to Prevent Stroke in Children With Sickle Cell Anemia and Elevated TCD Flow Velocity

NCT00402480
View directory record Official record
Conditions
Stroke
Interventions
Hydroxyurea
Drug
Lead sponsor
Duke University
Other
Eligibility
3 Years to 18 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 18, 2013 · Synced Sep 1, 2026, 9:51 AM EDT