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Showing 1–24 of 54 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Cervical collar Clear all
Terminated Not applicable Interventional Accepts healthy volunteers

Impact of Manikin Training on Airtraq Avant Learning Curve in Predicted Difficult Airways

NCT01720017
View directory record Official record
Conditions
Education, Training, Manikin
Interventions
Preclinical Manikin Training, Inservice Training
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 1, 2015 · Synced Sep 25, 2026, 8:06 AM 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 21, 2013 · Synced Sep 25, 2026, 8:06 AM EDT
Recruiting Not applicable Interventional

Hard Cervical Collar Use Following Posterior Cervical Fusion

NCT07789288
View directory record Official record
Conditions
Spinal Stenosis Cervical, Radiculopathy, Cervical Region, Posterior Cervical Fusion, Spondylosis, Cervical
Interventions
Hard Cervical Collar
Device
Lead sponsor
Georgetown University
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 25, 2026, 8:06 AM 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 1, 2018 · Synced Sep 25, 2026, 8:06 AM EDT
Completed Not applicable Interventional Results available

Aerosol Particle Concentrations Among Different Oxygen Devices for Spontaneous Breathing Patients With Tracheostomy

NCT04654754
View directory record Official record
Conditions
Transmission, Patient-Professional
Interventions
high-flow high humidity oxygen device with tracheostomy adapter
Device
Lead sponsor
Jie Li
Other
Eligibility
18 Years to 90 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 20, 2022 · Synced Sep 25, 2026, 8:06 AM EDT
Terminated Phase 1 Interventional Results available

Trial of Cooling for Patients With Excel Cryo Cooling System in Intracerebral Hemorrhage (ICH)

NCT01933230
View directory record Official record
Conditions
Intracerebral Hemorrhage
Interventions
Excel Cryo Cooling System
Device
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 22, 2017 · Synced Sep 25, 2026, 8:06 AM 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 23, 2020 · Synced Sep 25, 2026, 8:06 AM 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 24, 2026 · Synced Sep 25, 2026, 8:06 AM EDT
Active, not recruiting Not applicable Interventional

Insignia™ Hip Stem Outcomes Study

NCT05144191
View directory record Official record
Conditions
Hip Osteoarthritis, Avascular Necrosis, Rheumatoid Arthritis, Post-traumatic Osteoarthritis, Femoral Neck Fractures, Trochanteric Fractures, Surgery
Interventions
Insignia uncemented Hip Stem
Device
Lead sponsor
Stryker Orthopaedics
Industry
Eligibility
18 Years and older
Enrollment
313 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2034
U.S. locations
11
States / cities
Phoenix, Arizona • San Francisco, California • Chicago, Illinois + 8 more
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 25, 2026, 8:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Internal Jugular Vein Compression Collar for Novel Symptomatic Treatment of Venous Pulsatile Tinnitus

NCT05441540
View directory record Official record
Conditions
Pulsatile Tinnitus
Interventions
Internal Jugular Vein Compression Collar
Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 15, 2024 · Synced Sep 25, 2026, 8:06 AM EDT
Completed No phase listed Observational

Study: C-Collar and Dysphagia

NCT03349125
View directory record Official record
Conditions
Dysphagia
Interventions
Collar On, Collar Off
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
60 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 1, 2019 · Synced Sep 25, 2026, 8:06 AM EDT
Active, not recruiting No phase listed Observational

Registry of Pediatric Orthopedic Trauma and Health Outcomes in Skeletally Immature Children

NCT04207892
View directory record Official record
Conditions
Long Bone Fractures
Interventions
Conservative (non-surgical) treatment, Surgical treatment
Procedure
Lead sponsor
AO Innovation Translation Center
Other
Eligibility
Up to 18 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 11, 2025 · Synced Sep 25, 2026, 8:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Hybrid Cochlear Implants in Severe to Profound Adults, Children, and Adolescents

NCT01975571
View directory record Official record
Conditions
Hearing Loss, High-Frequency
Interventions
Cochlear® Nucleus™ Hybrid L24, Cochlear® Nucleus™ Hybrid S12
Device
Lead sponsor
Bruce J Gantz
Other
Eligibility
5 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2018
U.S. locations
2
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 7, 2022 · Synced Sep 25, 2026, 8:06 AM 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 29, 2017 · Synced Sep 25, 2026, 8:06 AM 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 3, 2020 · Synced Sep 25, 2026, 8:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Novel Protection Against Potential Brain, Hearing and Vision Injury During Blast Wave Exposure

NCT03017924
View directory record Official record
Conditions
Concussion, Mild
Interventions
Q collar
Device
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 15, 2021 · Synced Sep 25, 2026, 8:06 AM 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 21, 2021 · Synced Sep 25, 2026, 8:06 AM 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 18, 2025 · Synced Sep 25, 2026, 8:06 AM 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 6, 2024 · Synced Sep 25, 2026, 8:06 AM 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 5, 2021 · Synced Sep 25, 2026, 8:06 AM 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 8, 2026 · Synced Sep 25, 2026, 8:06 AM 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 Aug 31, 2026 · Synced Sep 25, 2026, 8:06 AM 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 11, 2021 · Synced Sep 25, 2026, 8:06 AM EDT
Completed No phase listed Observational

Comparison of Cervical Motion Restriction and Interface Pressure Between Two Cervical Collars

NCT04572113
View directory record Official record
Conditions
Cervical Pain
Interventions
Cervical collar
Device
Lead sponsor
More Foundation
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Timeline
2018 – 2019
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 22, 2021 · Synced Sep 25, 2026, 8:06 AM EDT