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ClinicalTrials.gov public records Last synced Oct 22, 2026, 9:27 AM EDT

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

Showing 1–19 of 19 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Collar On Clear all
Terminated Not applicable Interventional Results available

Providing Optimal PEEP During Mechanical Ventilation for Obese Patients Using Esophageal Balloon

NCT03951064
View directory record Official record
Conditions
Obesity, Morbid, Ventilator-Induced Lung Injury, Respiratory Failure
Interventions
Esophageal balloon, Intervention Spontaneous Breathing Trial (SBT) and Extubation, Control Spontaneous Breathing Trial and Extubation, Intervention Weaning after Tracheostomy, Control Weaning after Tracheostomy
Device · Procedure
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 5, 2024 · Synced Oct 22, 2026, 9:27 AM EDT
Terminated Phase 2 Interventional Results available

PTH Analog Type II Odontoid Fracture

NCT04760782
View directory record Official record
Conditions
Odontoid Fracture
Interventions
Abaloparatide, Hard collar immobilization
Drug · Device
Lead sponsor
David Lunardini
Other
Eligibility
50 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 22, 2026, 9:27 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Evaluating Q-Collar Effects on Brain Blood Flow Control During Exercise

NCT06826781
View directory record Official record
Conditions
Healthy
Interventions
Q30 Q-Collar, Not wearing Q-Collar
Device · Other
Lead sponsor
Spaulding Rehabilitation Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 22, 2026, 9:27 AM EDT
Recruiting Not applicable Interventional

Endovascular Treatment of TAAA and Aortic Arch Aneurysms Using Fenestrated and Branched Stent Grafts

NCT02323581
View directory record Official record
Conditions
Aortic Aneurysm, Thoracoabdominal, Aortic Aneurysm, Thoracic, Aortic Dissection, Thoracoabdominal
Interventions
Endovascular treatment of Thoracoabdominal Aortic Aneurysm, Endovascular treatment of Aortic Arch Aneurysms
Device
Lead sponsor
Darren Schneider, M.D.
Other
Eligibility
18 Years and older
Enrollment
520 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2033
U.S. locations
2
States / cities
New York, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Oct 22, 2026, 9:27 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 Oct 1, 2026 · Synced Oct 22, 2026, 9:27 AM 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 22, 2026, 9:27 AM 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 22, 2026, 9:27 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 Sep 1, 2026 · Synced Oct 22, 2026, 9:27 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 16, 2024 · Synced Oct 22, 2026, 9:27 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 30, 2017 · Synced Oct 22, 2026, 9:27 AM EDT
Completed Not applicable Interventional

High-Flow Oxygen Therapy Following Tracheostomy

NCT03721419
View directory record Official record
Conditions
Acute Respiratory Failure
Interventions
High Flow High Humidity device, Low Flow High Humidity device
Device
Lead sponsor
Barnes-Jewish Hospital
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 20, 2021 · Synced Oct 22, 2026, 9:27 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 2, 2019 · Synced Oct 22, 2026, 9:27 AM EDT
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 2, 2015 · Synced Oct 22, 2026, 9:27 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 12, 2021 · Synced Oct 22, 2026, 9:27 AM 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 22, 2026, 9:27 AM 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 22, 2026, 9:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Three Instructional Interventions for Prehospital Cervical Spinal Immobilization by Laypeople

NCT05359575
View directory record Official record
Conditions
Cervical Vertebra Injury, Cervical Vertebra Fracture
Interventions
Audio kit, Instructional flashcard (version 1), In-person training, Instructional flashcard (version 2)
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
265 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 27, 2022 · Synced Oct 22, 2026, 9:27 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 7, 2024 · Synced Oct 22, 2026, 9:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Engaging Men From Blue-collar Industries in Weight Loss

NCT05386238
View directory record Official record
Conditions
Obesity
Interventions
Standard behavioral weight loss program, Tailored behavioral weight loss program
Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older · Male only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 18, 2025 · Synced Oct 22, 2026, 9:27 AM EDT