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ClinicalTrials.gov public records Last synced Oct 23, 2026, 8:50 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 50 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: TCD Clear all
Completed No phase listed Observational Accepts healthy volunteers

Brain Blood Flow: Age and Gender

NCT02840851
View directory record Official record
Conditions
Healthy, Aging
Interventions
MRI, TCD
Device
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
20 Years to 64 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 9, 2019 · Synced Oct 23, 2026, 8:50 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of BIIB111 for the Treatment of Choroideremia

NCT03496012
View directory record Official record
Conditions
Choroideremia
Interventions
BIIB111
Genetic
Lead sponsor
Biogen
Industry
Eligibility
18 Years and older · Male only
Enrollment
169 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
8
States / cities
Los Angeles, California • Miami, Florida • Baltimore, Maryland + 5 more
Source: ClinicalTrials.gov public record
Updated Dec 7, 2023 · Synced Oct 23, 2026, 8:50 PM 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 18, 2025 · Synced Oct 23, 2026, 8:50 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

CLOTBUST Hands-Free: A Phase I/II Pilot Safety Trial

NCT01240356
View directory record Official record
Conditions
Stroke
Interventions
2-MHz transcranial Doppler ultrasound, 2-MHz transcranial Doppler ultrasound insonation
Device
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
2
States / cities
Birmingham, Alabama • Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 23, 2016 · Synced Oct 23, 2026, 8:50 PM 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 25, 2023 · Synced Oct 23, 2026, 8:50 PM EDT
Terminated Phase 1Phase 2 Interventional

Transcranial Ultrasound in Clinical SONothrombolysis

NCT00504842
View directory record Official record
Conditions
Acute Ischemic Stroke
Interventions
MRX-801, Placebo
Drug
Lead sponsor
ImaRx Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
13
States / cities
Birmingham, Alabama • Phoenix, Arizona • Newport Beach, California + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 15, 2008 · Synced Oct 23, 2026, 8:50 PM 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 10, 2026 · Synced Oct 23, 2026, 8:50 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

High Resolution Retinal Imaging

NCT01866371
View directory record Official record
Conditions
Stargardts, Retinitis Pigmentosa, Age-related Macular Degeneration, Choroideremia, Geographic Atrophy
Interventions
Retinal imaging
Procedure
Lead sponsor
University of Pennsylvania
Other
Eligibility
7 Years and older
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2031
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 23, 2026, 8:50 PM EDT
Not yet recruiting No phase listed Observational

Prospective Observational Multimodal Neuromonitoring in Adult NSICU Patients

NCT07577713
View directory record Official record
Conditions
Subarachnoid Hemorrhage, Aneurysmal, Brain Injuries, Traumatic, Cerebral Hemorrhage, Ischemic Stroke, Delayed Emergence From Anesthesia, Encephalopathy
Interventions
Not listed
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2029
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 23, 2026 · Synced Oct 23, 2026, 8:50 PM EDT
Not yet recruiting No phase listed Observational

Feasibility of Using NeuraSignal Transcranial Doppler Robot

NCT06565442
View directory record Official record
Conditions
Cerebral Autoregulation
Interventions
NeuraSignal transcranial doppler robot
Device
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 89 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Oct 23, 2026, 8:50 PM 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 2, 2026 · Synced Oct 23, 2026, 8:50 PM EDT
Recruiting Phase 2 Interventional

Alpha/Beta TCD HCT in Patients With Inherited BMF Disorders

NCT03579875
View directory record Official record
Conditions
Fanconi Anemia, Severe Aplastic Anemia, Myelodysplastic Syndromes, T Cell Receptor Alpha/Beta Depletion, Telomere Biology Disorder, Bone Marrow Failure, Dyskeratosis Congenita, Telomere Biology Disorders
Interventions
Total Body Irradiation (TBI) (Plan 1), Cyclophosphamide (CY) (Plan 1), Fludarabine (FLU), Methylprednisolone (MP), Donor mobilized PBSC infusion, G-CSF, Cyclophosphamide (CY) (Plan 2), Rituximab, Busulfan, Alemtuzumab, Melphalan
Drug · Device
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
Up to 65 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2029
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 30, 2026 · Synced Oct 23, 2026, 8:50 PM 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 4, 2017 · Synced Oct 23, 2026, 8:50 PM EDT
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 24, 2024 · Synced Oct 23, 2026, 8:50 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

UTLight-transcranial Doppler Assessment of Regional Cerebral Autoregulation

NCT02178787
View directory record Official record
Conditions
Diabetes
Interventions
Not listed
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
50 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 16, 2017 · Synced Oct 23, 2026, 8:50 PM 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 28, 2020 · Synced Oct 23, 2026, 8:50 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Safety and Dose-escalation Study of AAV2-hCHM in Participants With CHM (Choroideremia) Gene Mutations

NCT02341807
View directory record Official record
Conditions
Choroideremia, CHM (Choroideremia) Gene Mutations
Interventions
AAV2-hCHM
Biological
Lead sponsor
Spark Therapeutics, Inc.
Industry
Eligibility
18 Years and older · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
3
States / cities
Boston, Massachusetts • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 25, 2024 · Synced Oct 23, 2026, 8:50 PM 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 19, 2013 · Synced Oct 23, 2026, 8:50 PM EDT
Completed No phase listed Observational

Evaluating Barriers to Stroke Screening and Prevention in Children With Sickle Cell Disease

NCT03621826
View directory record Official record
Conditions
Stroke Ischemic, Sickle Cell Disease
Interventions
Questionnaire/Interview
Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
2 Years to 24 Years
Enrollment
5,247 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 11, 2019 · Synced Oct 23, 2026, 8:50 PM EDT
Active, not recruiting Phase 1 Interventional

Dose Escalation Study of Intravitreal 4D-110 in Patients With Choroideremia

NCT04483440
View directory record Official record
Conditions
Choroideremia
Interventions
4D-110
Biological
Lead sponsor
4D Molecular Therapeutics
Industry
Eligibility
18 Years and older · Male only
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
2
States / cities
Dallas, Texas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 22, 2025 · Synced Oct 23, 2026, 8:50 PM EDT
Recruiting Phase 2 Interventional

MT2021-08T Cell Receptor Alpha/Beta Depletion PBSC Transplantation for Heme Malignancies

NCT05735717
View directory record Official record
Conditions
Hematologic Malignancy, Acute Leukemia, Remission, Acute Myeloid Leukemia, Acute Lymphoblastic Leukemia, AML, TP53, Intrachromosomal Amplification of Chromosome 21, Cytogenetic Abnormality, CNS Leukemia, Minimal Residual Disease, Myelodysplasia, Juvenile Myelomonocytic Leukemia, Somatic Mutation, PTPN11 Gene Mutation, N-RAS Gene Amplification, Neurofibromatosis 1, NF1 Mutation, CBL Gene Mutation, Monosomy 7, Chromosome Abnormality, Fetal Hemoglobin, Lymphoblastic Lymphoma, High Grade Non-Hodgkin's Lymphoma, Adult
Interventions
Fludarabine, Busulfan, Melphalan, Rituximab, Levetiracetam, Alpha/Beta T Cell-Depleted Hematopoietic Stem Cells, Thymoglobulin, Cyclophosphamide
Drug · Biological
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
Up to 60 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Oct 23, 2026, 8:50 PM 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 26, 2016 · Synced Oct 23, 2026, 8:50 PM EDT
Completed No phase listed Observational

Mechanisms of Ischemic Stroke in Cancer Patients

NCT02604667
View directory record Official record
Conditions
Stroke, Cancer
Interventions
Blood tests, Transcranial Doppler Microemboli Detection Study
Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 5, 2021 · Synced Oct 23, 2026, 8:50 PM 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 13, 2015 · Synced Oct 23, 2026, 8:50 PM EDT