Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 23, 2026, 10:18 PM EDT

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

Showing 25–48 of 50 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: TCD Clear all
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 3, 2026 · Synced Oct 23, 2026, 10:18 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Withdrawn Not applicable Interventional Accepts healthy volunteers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 29, 2023 · Synced Oct 23, 2026, 10:18 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 Sep 14, 2026 · Synced Oct 23, 2026, 10:18 PM EDT
Completed Phase 2 Interventional Results available

Choroideremia Gene Therapy Clinical Trial

NCT02553135
View directory record Official record
Conditions
Choroideremia
Interventions
Injection of AAV2-REP1 (10e11 vg)
Biological
Lead sponsor
Byron Lam
Other
Eligibility
18 Years and older · Male only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jul 29, 2019 · Synced Oct 23, 2026, 10:18 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 15, 2025 · Synced Oct 23, 2026, 10:18 PM EDT
Completed Phase 1 Interventional

Stem Cell Transplantation in Treating Patients With Hematologic Cancer

NCT00004904
View directory record Official record
Conditions
Chronic Myeloproliferative Disorders, Graft Versus Host Disease, Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Precancerous/Nonmalignant Condition, Small Intestine Cancer
Interventions
anti-thymocyte globulin, filgrastim, cladribine, cyclophosphamide, etoposide, methylprednisolone, tacrolimus, allogeneic bone marrow transplantation, in vitro-treated peripheral blood stem cell transplantation
Biological · Drug · Procedure
Lead sponsor
Northwestern University
Other
Eligibility
Up to 45 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2000
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 4, 2012 · Synced Oct 23, 2026, 10:18 PM EDT
Terminated No phase listed Observational

"Natural History" Study of Choroideremia

NCT02994368
View directory record Official record
Conditions
Choroideremia
Interventions
Observation
Other
Lead sponsor
4D Molecular Therapeutics
Industry
Eligibility
18 Years and older · Male only
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
3
States / cities
Dallas, Texas • Houston, Texas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 6, 2022 · Synced Oct 23, 2026, 10:18 PM EDT
Completed No phase listed Observational

Natural History of the Progression of Choroideremia Study

NCT03359551
View directory record Official record
Conditions
Choroideremia
Interventions
Not listed
Lead sponsor
NightstaRx Ltd, a Biogen Company
Other
Eligibility
18 Years and older · Male only
Enrollment
319 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
7
States / cities
Los Angeles, California • Miami, Florida • Baltimore, Maryland + 4 more
Source: ClinicalTrials.gov public record
Updated Feb 10, 2023 · Synced Oct 23, 2026, 10:18 PM 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 Oct 7, 2026 · Synced Oct 23, 2026, 10:18 PM EDT
Terminated Phase 3 Interventional Results available

Sparing Conversion to Abnormal TCD (Transcranial Doppler) Elevation (SCATE)

NCT01531387
View directory record Official record
Conditions
Sickle Cell Anemia
Interventions
Hydroxyurea
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
2 Years to 10 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 8, 2016 · Synced Oct 23, 2026, 10:18 PM EDT
Completed No phase listed Observational

Natural Disease Progression in Participants With Choroideremia

NCT04795206
View directory record Official record
Conditions
Choroideremia
Interventions
No Intervention
Other
Lead sponsor
Biogen
Industry
Eligibility
10 Years and older
Enrollment
1,178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 8, 2021 · Synced Oct 23, 2026, 10:18 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 9, 2016 · Synced Oct 23, 2026, 10:18 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 9, 2022 · Synced Oct 23, 2026, 10:18 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 26, 2017 · Synced Oct 23, 2026, 10:18 PM 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 22, 2017 · Synced Oct 23, 2026, 10:18 PM 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 27, 2026 · Synced Oct 23, 2026, 10:18 PM 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 Oct 19, 2026 · Synced Oct 23, 2026, 10:18 PM 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 10, 2024 · Synced Oct 23, 2026, 10:18 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 8, 2025 · Synced Oct 23, 2026, 10:18 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 14, 2023 · Synced Oct 23, 2026, 10:18 PM EDT
Completed No phase listed Observational

Biomarker Development in Sturge-Weber Syndrome

NCT01345305
View directory record Official record
Conditions
Sturge-Weber Syndrome
Interventions
Not listed
Lead sponsor
Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
Other
Eligibility
6 Months to 21 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 16, 2020 · Synced Oct 23, 2026, 10:18 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 6, 2026 · Synced Oct 23, 2026, 10:18 PM EDT
Active, not recruiting Phase 1 Interventional

Study to Evaluate Safety of RTx-015 Injection in Retinitis Pigmentosa or Choroideremia Patients (ENVISION)

NCT06460844
View directory record Official record
Conditions
Retinitis Pigmentosa, Choroideremia
Interventions
RTx-015
Genetic
Lead sponsor
Ray Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
4
States / cities
Beverly Hills, California • Orange, California • Pittsburgh, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 20, 2026 · Synced Oct 23, 2026, 10:18 PM EDT
Completed Phase 2 Interventional Results available

A Safety Study of Retinal Gene Therapy for Choroideremia With Administration of BIIB111

NCT03507686
View directory record Official record
Conditions
Choroideremia
Interventions
BIIB111
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years and older · Male only
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
4
States / cities
Miami, Florida • Boston, Massachusetts • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 23, 2024 · Synced Oct 23, 2026, 10:18 PM EDT