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ClinicalTrials.gov public records Last synced Sep 8, 2026, 10:28 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Collar Clear all
Completed Phase 1Phase 2 Interventional Results available

Effectiveness of Continuous Negative External Pressure in Preventing Upper Airway Impairment During Routine Colonoscopy

NCT01895062
View directory record Official record
Conditions
Airway Obstruction, Apnea, Hypopnea
Interventions
Airway Management System (AMS)
Device
Lead sponsor
5i Sciences, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Aug 5, 2014 · Synced Sep 8, 2026, 10:28 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 8, 2026, 10:28 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 17, 2025 · Synced Sep 8, 2026, 10:28 AM 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 2, 2023 · Synced Sep 8, 2026, 10:28 AM 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 6, 2016 · Synced Sep 8, 2026, 10:28 AM EDT
Not listed Not applicable Interventional

Study Using Negative Pressure to Reduce Apnea

NCT04861038
View directory record Official record
Conditions
Sleep Apnea, Obstructive, Apnea, Sleep
Interventions
aerSleep II
Device
Lead sponsor
Sommetrics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
15
States / cities
Tucson, Arizona • Little Rock, Arkansas • Los Angeles, California + 10 more
Source: ClinicalTrials.gov public record
Updated Apr 15, 2024 · Synced Sep 8, 2026, 10:28 AM EDT
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 16, 2020 · Synced Sep 8, 2026, 10:28 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 8, 2026, 10:28 AM EDT
Withdrawn Not applicable Interventional

Continuous Negative External Pressure for the Treatment of Primary Snoring

NCT03372070
View directory record Official record
Conditions
Snoring
Interventions
cNEP
Device
Lead sponsor
Sommetrics, Inc.
Industry
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 1, 2019 · Synced Sep 8, 2026, 10:28 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 26, 2022 · Synced Sep 8, 2026, 10:28 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 8, 2026, 10:28 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 8, 2026, 10:28 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 8, 2026, 10:28 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 8, 2026, 10:28 AM EDT
Completed No phase listed Observational

CTTI Risk Factors for HABP/VABP Study

NCT02689531
View directory record Official record
Conditions
Pneumonia, Ventilator-Associated, Pneumonia, Bacterial, Pneumonia, Hospital-Acquired
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
7,530 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
15
States / cities
Birmingham, Alabama • Los Angeles, California • Chicago, Illinois + 12 more
Source: ClinicalTrials.gov public record
Updated Jun 14, 2023 · Synced Sep 8, 2026, 10:28 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 26, 2026 · Synced Sep 8, 2026, 10:28 AM 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 15, 2017 · Synced Sep 8, 2026, 10:28 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 2, 2023 · Synced Sep 8, 2026, 10:28 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 8, 2026, 10:28 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 8, 2026, 10:28 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 8, 2026, 10:28 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 25, 2015 · Synced Sep 8, 2026, 10:28 AM EDT
Not listed No phase listed Observational

In Vivo Quantification of Cervical Collar Efficacy

NCT05262140
View directory record Official record
Conditions
Spine Injury
Interventions
Not listed
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 26, 2024 · Synced Sep 8, 2026, 10:28 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 14, 2025 · Synced Sep 8, 2026, 10:28 AM EDT