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ClinicalTrials.gov public records Last synced Oct 20, 2026, 11:43 PM EDT

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Showing 1–24 of 54 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Collar Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Sex and Age Ultrasound Response to Differential Jugular Vein Pressure

NCT03017937
View directory record Official record
Conditions
Concussion, Mild
Interventions
Q-collar
Device
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
7 Years to 60 Years
Enrollment
155 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 17, 2020 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Protection Against Potential Brain Injury During Competitive Football

NCT02696200
View directory record Official record
Conditions
Concussion
Interventions
Q Collar
Device
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
14 Years to 19 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 9, 2020 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional Results available

AION BIOSYSTEMS, INC. Tempshield for Continuous Tempreature Monitoring

NCT07145541
View directory record Official record
Conditions
Fever, Sepsis
Interventions
Aion Tempshield Device
Device
Lead sponsor
AION Biosystems
Industry
Eligibility
1 Year to 4 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Nov 19, 2025 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Concussion Prevention in Female Soccer Athletes

NCT03014492
View directory record Official record
Conditions
Concussion, Mild, Concussion, Brain
Interventions
Q Collar
Device
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
14 Years to 19 Years · Female only
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 4, 2020 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Innovative Concussion Prevention Device

NCT02901028
View directory record Official record
Conditions
Concussion
Interventions
Laboratory testing, Blood and Urine Draws
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years to 25 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 15, 2016 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effectiveness, Safety and Ease of Application of Excel Cryo Cooling Collar to Rapidly Reduce Core Brain Temperature

NCT02703675
View directory record Official record
Conditions
Stroke
Interventions
Excel Cryo Cooling Collar
Device
Lead sponsor
Michel Torbey
Other
Eligibility
18 Years to 60 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 2, 2018 · Synced Oct 20, 2026, 11:43 PM EDT
Active, not recruiting Not applicable Interventional

A Novel Device for Neck Pain in Active-duty Military Personnel With Forward Head Posture.

NCT05433025
View directory record Official record
Conditions
Neck Pain
Interventions
Cervigard Neck Collar
Device
Lead sponsor
Kessler Foundation
Other
Eligibility
18 Years to 45 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 25, 2026 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Neck Cooling Collar on Exercise Performance in the Heat

NCT05135117
View directory record Official record
Conditions
Hyperthermia
Interventions
NeuroRescue Cooling Collar, Ice Towel
Other
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 3, 2023 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional

Collar Use for Cervical Radicular Pain

NCT04163939
View directory record Official record
Conditions
Cervical Radiculopathy
Interventions
Vista Therapy Collar, Placebo
Other
Lead sponsor
Rhode Island Hospital
Other
Eligibility
18 Years and older
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jan 31, 2023 · Synced Oct 20, 2026, 11:43 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Role of the Laser Pointer in Budgeting Fluoroscopy Time and Radiation Exposure

NCT02051582
View directory record Official record
Conditions
Healthy
Interventions
Surgeons using fluoroscopy with laser pointer, Surgeons using fluoroscopy without laser pointer
Procedure
Lead sponsor
University of Florida
Other
Eligibility
22 Years to 80 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 26, 2015 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparison Of Effective Radiation Shielding Between Rampart IC, M1128 Shield vs Conventional Apron And Shields In Clinical Interventional Procedures

NCT05347290
View directory record Official record
Conditions
Radiation Exposure
Interventions
Rampart IC, M1128, Lead Apron and Ancillary Shield, Rampart IC, M1128 and Lead Apron
Device
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 3, 2023 · Synced Oct 20, 2026, 11:43 PM EDT
Terminated Not applicable Interventional

Collar Immobilization Following a Posterior Cervical Laminectomy and Fusion

NCT01383876
View directory record Official record
Conditions
Cervical Spondylosis Symptomatic Neurological Compression
Interventions
Collar, No Collar
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 22, 2013 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of the Q-Collar During High-Intensity Cycling Exercise

NCT07808710
View directory record Official record
Conditions
Physiological Responses to High-Intensity Exercise
Interventions
Q-Collar™
Device
Lead sponsor
University of Northern Iowa
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Cedar Falls, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Phase 1 Interventional

The Pathophysiology of Orthostatic Hypotension

NCT00748059
View directory record Official record
Conditions
Autonomic Nervous System Diseases, Orthostatic Hypotension, Dopamine Beta-Hydroxylase Deficiency, Orthostatic Intolerance
Interventions
Standing or upright tilt, Microneurography, QSweat, neck cuff stimulation, phenylephrine,isoproterenol,nitroprusside,propranolol,edrophonium,atropine,tyramine, clonidine,yohimbine,metoclopramide,alpha-methyldopa, BodPod, Eye exam, Sleep study, Pain response testing, Metabolic chamber, Brain function studies, Bicycle Exercise Test
Procedure · Device · Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
12 Years to 70 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2020
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 12, 2021 · Synced Oct 20, 2026, 11:43 PM EDT
Terminated Not applicable Interventional Results available

Pilot Study of cNEP for the Treatment of Snoring

NCT02767843
View directory record Official record
Conditions
Snoring
Interventions
continuous negative external pressure (cNEP)
Device
Lead sponsor
Sommetrics, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Alameda, California
Source: ClinicalTrials.gov public record
Updated May 7, 2024 · Synced Oct 20, 2026, 11:43 PM EDT
Not listed Not applicable Interventional

A Pilot Study Comparing Oxygen Delivery Via Helmet Interface Versus High Flow Nasal Cannula

NCT04035460
View directory record Official record
Conditions
Hypoxemic Respiratory Failure
Interventions
Helmet, High Flow Nasal Oxygen
Device
Lead sponsor
Baystate Medical Center
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Springfield, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 22, 2021 · Synced Oct 20, 2026, 11:43 PM EDT
Completed No phase listed Observational

Cervical Spine Clearance in Obtunded Trauma Patients

NCT00573014
View directory record Official record
Conditions
Coma, Wounds and Injuries
Interventions
Cervical Spine Clearance
Other
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
Not listed
Enrollment
197 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 30, 2017 · Synced Oct 20, 2026, 11:43 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Randomized Clinical Trial of the Application of TrachPhone HME and the Impact on Patient Satisfaction for Tracheostomized Head and Neck Cancer Patients

NCT07798414
View directory record Official record
Conditions
Patient Satisfaction, Pulmonary Rehabilitation
Interventions
TrachPhone Heat Moisture Exchange, Trach Collar
Device
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Temperature Evaluation by MRI Thermometry During Cervical Cooling

NCT02431026
View directory record Official record
Conditions
Healthy
Interventions
Cooling pack activated Excel Cryo Cooling Collar
Device
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 60 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Sep 7, 2016 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Brain Dynamics in Response to Jugular Vein Compression

NCT03236389
View directory record Official record
Conditions
Concussion, Mild
Interventions
Q Collar
Device
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
7 Years to 40 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 26, 2023 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Performance of MicroTextured Dental Implants

NCT01821417
View directory record Official record
Conditions
Partially Edentulous Jaw
Interventions
Microtextured dental implant treatment, Dental implant treatment
Device
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 16, 2017 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional

Comparison of Bracing With Co-aptation Splinting for the Initial Treatment of Acute Humeral Shaft Fractures: The COBRAS Trials

NCT05118087
View directory record Official record
Conditions
Humeral Fractures
Interventions
Webril Padded Plaster Splint, Pre-Fabricated Fracture Brace
Procedure
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
3
States / cities
Garden City, New York • New York, New York • Queens, New York
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 20, 2026, 11:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Controlled DTI Evaluations in High School Football and Female Soccer to Evaluate Efficacy of Jugular Compression Collar

NCT04068883
View directory record Official record
Conditions
MTBI - Mild Traumatic Brain Injury, Concussion, Mild
Interventions
Q collar
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
13 Years to 19 Years
Enrollment
488 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
2
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 24, 2020 · Synced Oct 20, 2026, 11:43 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Usability and Tolerability of Novel Protection Device Against Potential Brain Injury During Competitive Sport

NCT03318822
View directory record Official record
Conditions
Brain Injuries, Traumatic, Brain Injury Traumatic Mild
Interventions
Q-Collar
Device
Lead sponsor
Emory University
Other
Eligibility
14 Years to 49 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 6, 2021 · Synced Oct 20, 2026, 11:43 PM EDT