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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: TCD Clear all
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 8, 2026, 5:56 PM 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 8, 2026, 5:56 PM EDT
Completed No phase listed Observational

Cerebral Blood Flow During CPB During Cardiac Surgery and the Presence of Post op Delirium

NCT02084394
View directory record Official record
Conditions
Delirium
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
50 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 8, 2016 · Synced Sep 8, 2026, 5:56 PM EDT
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 8, 2019 · Synced Sep 8, 2026, 5:56 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

The Dark-Adapted Retinal Function Response in Choroideremia (DARC) Study

NCT05045703
View directory record Official record
Conditions
Choroideremia
Interventions
Vitamin A palmitate
Dietary Supplement
Lead sponsor
Duke University
Other
Eligibility
15 Years and older · Male only
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 28, 2023 · Synced Sep 8, 2026, 5:56 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 26, 2026 · Synced Sep 8, 2026, 5:56 PM EDT
Completed No phase listed Observational

Non-Significant Risk Study Comparing the Nautilus NeuroWaveTM to Transcranial Doppler as an Aid to Diagnosing Vasospasm

NCT01595802
View directory record Official record
Conditions
Cerebral Vasospasm
Interventions
Nautilus NeuroWave, Transcranial Doppler (TCD)
Device
Lead sponsor
Jan Medical, Inc.
Industry
Eligibility
18 Years and older
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 8, 2022 · Synced Sep 8, 2026, 5:56 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 15, 2017 · Synced Sep 8, 2026, 5:56 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 27, 2020 · Synced Sep 8, 2026, 5:56 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Inherited Retinal Degenerative Disease Registry

NCT02435940
View directory record Official record
Conditions
Eye Diseases Hereditary, Retinal Disease, Achromatopsia, Bardet-Biedl Syndrome, Bassen-Kornzweig Syndrome, Batten Disease, Best Disease, Choroidal Dystrophy, Choroideremia, Cone Dystrophy, Cone-Rod Dystrophy, Congenital Stationary Night Blindness, Enhanced S-Cone Syndrome, Fundus Albipunctatus, Goldmann-Favre Syndrome, Gyrate Atrophy, Juvenile Macular Degeneration, Kearns-Sayre Syndrome, Leber Congenital Amaurosis, Refsum Syndrome, Retinitis Pigmentosa, Retinitis Punctata Albescens, Retinoschisis, Rod-Cone Dystrophy, Rod Dystrophy, Rod Monochromacy, Stargardt Disease, Usher Syndrome
Interventions
Not listed
Lead sponsor
Foundation Fighting Blindness
Other
Eligibility
Not listed
Enrollment
20,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2037
U.S. locations
1
States / cities
Columbia, Maryland
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Sep 8, 2026, 5:56 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 14, 2008 · Synced Sep 8, 2026, 5:56 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 25, 2016 · Synced Sep 8, 2026, 5:56 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 21, 2025 · Synced Sep 8, 2026, 5:56 PM 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 8, 2026, 5:56 PM EDT
Completed Phase 3 Interventional

Long-term Safety and Efficacy Follow-up of BIIB111 for the Treatment of Choroideremia and BIIB112 for the Treatment of X-Linked Retinitis Pigmentosa

NCT03584165
View directory record Official record
Conditions
Choroideremia, X-Linked Retinitis Pigmentosa
Interventions
BIIB111, BIIB112
Genetic
Lead sponsor
NightstaRx Ltd, a Biogen Company
Other
Eligibility
18 Years and older · Male only
Enrollment
277 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
10
States / cities
Los Angeles, California • Gainesville, Florida • Miami, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 8, 2026, 5:56 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 5, 2026 · Synced Sep 8, 2026, 5:56 PM EDT
Recruiting No phase listed Observational

Observational Study to Assess Endpoint Operational Feasibility & Measurement Properties in Patients with Retinal Degeneration

NCT06375239
View directory record Official record
Conditions
Retinitis Pigmentosa, Choroideremia, Stargardt Macular Dystrophy, Stargardt Disease, Geographic Atrophy from Age-related Macular Degeneration, X-lined Retinoschisis, Retinal Dystrophies
Interventions
Not listed
Lead sponsor
Ray Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Jan 7, 2025 · Synced Sep 8, 2026, 5:56 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 18, 2013 · Synced Sep 8, 2026, 5:56 PM EDT
Completed Phase 1 Interventional

Haploidentical Stem Cell Transplant for Patients With Sickle Cell Disease and Prior Stroke or Abnormal Transcranial Ultrasound

NCT00152113
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Hematopoietic Stem Cell Transplantation, CliniMACS, See intervention description
Procedure · Device · Drug
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
2 Years to 16 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 25, 2017 · Synced Sep 8, 2026, 5:56 PM EDT
Not yet recruiting No phase listed Observational

Transcranial Doppler Evaluation After Endovascular Thrombectomy for Acute Ischemic Stroke (PRECISE-TCD)

NCT07013396
View directory record Official record
Conditions
Anterior Cerebral Artery Syndrome, Anterior Cerebral Artery Stroke, Acute Ischemic Stroke, Cardioembolic Stroke, Vasogenic Cerebral Edema
Interventions
Transcranial Doppler (TCD) examination
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 8, 2026, 5:56 PM EDT
Terminated Not applicable Interventional Results available

Transmural Systems Transcaval Closure Device for Transcaval Access Ports During Transcatheter Aortic Valve Replacement

NCT03432494
View directory record Official record
Conditions
Aortic Stenosis
Interventions
Transcaval closure device (TCD)
Device
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
21 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
3
States / cities
Washington D.C., District of Columbia • Atlanta, Georgia • Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 13, 2023 · Synced Sep 8, 2026, 5:56 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
2026 – 2029
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced Sep 8, 2026, 5:56 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 12, 2015 · Synced Sep 8, 2026, 5:56 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 22, 2016 · Synced Sep 8, 2026, 5:56 PM EDT