Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 26, 2026, 4:11 AM EDT

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Showing 1–16 of 16 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
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
Conditions
Healthy, Carotid Artery Diseases
Interventions
Ultrasound imaging, Magnetic Resonance Imaging (MRI), Neurocognitive testing, Transcranial Doppler (TCD), Pulse Wave Doppler
Device · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 89 Years
Enrollment
217 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Madison, Wisconsin
Conditions
Hypoxia, Hypercapnia
Interventions
L-NMMA, Ketorolac, Ascorbic Acid, Intravenous Catheter, Transcranial Doppler Ultrasound
Drug · Procedure
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 45 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Madison, Wisconsin
Terminated Not applicable Interventional Accepts healthy volunteers

Exercise in Adolescents With Insulin Resistance

NCT04154865
Conditions
Insulin Resistance
Interventions
Hypercapnia, Transcranial Doppler, Cycle ergometer, Cognitive Tests
Other · Device
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
12 Years to 18 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Madison, Wisconsin
Completed No phase listed Observational Accepts healthy volunteers Results available

UTLight-transcranial Doppler Assessment of Regional Cerebral Autoregulation

NCT02178787
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
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
Completed No phase listed Observational Accepts healthy volunteers

Vascular Assessment of Regulation Index Arrays Registry

NCT02435082
Conditions
Concussion
Interventions
Not listed
Lead sponsor
NeuroChaos Solutions, Inc.
Industry
Eligibility
13 Years and older
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Austin, Texas
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
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
Conditions
Subarachnoid Hemorrhage, Aneurysmal
Interventions
- Non-Invasive Near-infrared Spectroscopy (NIRS) device (HEM1 with Foresight Elite Sensor)
Device
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 89 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Birmingham, Alabama
Conditions
Anemia, Sickle Cell
Interventions
Hydroxyurea
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
2 Years to 7 Years
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
14
States / cities
Birmingham, Alabama • Washington D.C., District of Columbia • Miami, Florida + 10 more
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
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
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
Conditions
Stroke, Acute Ischemic Stroke
Interventions
NovaGuide 2 Intelligent Ultrasound System
Device
Lead sponsor
NeuraSignal Inc dba NovaSignal
Industry
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Chattanooga, Tennessee
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