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ClinicalTrials.gov public records Last synced Oct 23, 2026, 11:48 PM EDT

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Showing 1–24 of 42 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Difficult Airway Clear all
Completed Not applicable Interventional Results available

Comparison of Endotracheal Intubation Over the Aintree Via the I-gel and Laryngeal Mask Airway Supreme

NCT02476565
View directory record Official record
Conditions
Difficult Intubation
Interventions
LMA-Supreme supraglottic device, I-gel supraglottic device
Device
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
2
States / cities
Nashville, Tennessee • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Mar 16, 2018 · Synced Oct 23, 2026, 11:48 PM EDT
Completed Not applicable Interventional

Video-Laryngoscope Alone or With Bronchoscope for Predicted Difficult Intubation

NCT03080896
View directory record Official record
Conditions
Intubation; Difficult
Interventions
King Vision video-laryngoscope with #3 disposable blade and endotracheal tube stylet, fiberoptic bronchoscope aScope III
Device
Lead sponsor
University of Louisville
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated May 28, 2024 · Synced Oct 23, 2026, 11:48 PM EDT
Not listed No phase listed Observational

Ultrasound to Predict Difficult Airway

NCT03789071
View directory record Official record
Conditions
Difficult Intubation
Interventions
External ultrasound evaluation of the airway
Diagnostic Test
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
420 participants
Timeline
2019 – 2023
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 22, 2021 · Synced Oct 23, 2026, 11:48 PM EDT
Terminated Not applicable Interventional Results available

Comparison of Double Lumen Tube Placement Techniques

NCT02495259
View directory record Official record
Conditions
Airway Morbidity, Intubation Complication, Tracheal Intubation Morbidity, Anesthesia Intubation Complication, Failed or Difficult Intubation, Sequela
Interventions
ZU-bend stylet, GlideScope, GlideRite stylet, Macintosh blade, Regular Double-lumen endobronchial tube (DLT) Stylet
Device
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 27, 2018 · Synced Oct 23, 2026, 11:48 PM 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 23, 2026, 11:48 PM EDT
Completed Not applicable Interventional

Anticipation of the Difficult Airway: the Preoperative Airway Assessment Form

NCT01037374
View directory record Official record
Conditions
Endotracheal Intubation Risk Assessment
Interventions
Preoperative assessment form
Other
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 25, 2014 · Synced Oct 23, 2026, 11:48 PM EDT
Completed No phase listed Observational

Comparing iView Video Laryngoscope in the Emergency Department

NCT04907695
View directory record Official record
Conditions
Intubation; Difficult or Failed, Airway Obstruction
Interventions
I View Video Laryngoscope https://www.intersurgical.com/content/files/108253/-1977057700
Device
Lead sponsor
Brooke Army Medical Center
Federal
Eligibility
18 Years and older
Enrollment
168 participants
Timeline
2021 – 2023
U.S. locations
2
States / cities
Denver, Colorado • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Feb 11, 2025 · Synced Oct 23, 2026, 11:48 PM EDT
Completed Not applicable Interventional Results available

Clinical Evaluation of the Storz CMAC Laryngoscope

NCT00956592
View directory record Official record
Conditions
Intubation, Airway Management
Interventions
CMAC video laryngoscope, Macintosh laryngoscope
Device
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 99 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 5, 2018 · Synced Oct 23, 2026, 11:48 PM EDT
Completed Not applicable Interventional Results available

RIFL (Rigid and Flexing Laryngoscope) vs. Fiberoptic Bronchoscope

NCT01965938
View directory record Official record
Conditions
Intubation; Difficult
Interventions
RIFL (Rigid and Flexing Laryngoscope), Fiberoptic Bronchoscope
Device
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 5, 2017 · Synced Oct 23, 2026, 11:48 PM EDT
Completed Not applicable Interventional Results available

New Maneuver to Facilitate Fiberoptic Intubation for Difficult Airway

NCT01958346
View directory record Official record
Conditions
Anticipated Difficult Airway
Interventions
Lingual Traction, Sham, Fiberoptic Intubation
Other · Device
Lead sponsor
Enrico Camporesi
Other
Eligibility
18 Years and older
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 12, 2016 · Synced Oct 23, 2026, 11:48 PM EDT
Withdrawn Not applicable Interventional

Ultrasound to Predict a Pediatric Difficult Airway and Obstructive Sleep Apnea Syndrome in Children

NCT02227134
View directory record Official record
Conditions
Difficult Airway, Obstructive Sleep Apnea
Interventions
Ultrasound
Procedure
Lead sponsor
Vidya Raman
Other
Eligibility
1 Month to 18 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 10, 2020 · Synced Oct 23, 2026, 11:48 PM EDT
Terminated Not applicable Interventional Results available

Comparison Between the Fastrach and CTrach Laryngeal Mask Airway

NCT00814775
View directory record Official record
Conditions
Intubation
Interventions
Fastrach Laryngeal Mask, CTrach Laryngeal Mask
Device
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 17, 2016 · Synced Oct 23, 2026, 11:48 PM EDT
Completed Not applicable Interventional

Air-Q® SP Versus Williams Intubating Airway for Single-Operator FOI

NCT03247803
View directory record Official record
Conditions
Intubation; Difficult or Failed, Laryngeal Masks
Interventions
air-Q® SP, Williams Airway Intubator (WA)
Device
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 22, 2019 · Synced Oct 23, 2026, 11:48 PM EDT
Recruiting No phase listed Observational

Comparison of Two Sedation Regimens for Awake Fiberoptic Intubation

NCT05736198
View directory record Official record
Conditions
Awake Fiberoptic Intubation, Difficult Airway
Interventions
Dexmedetomidine
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2034
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 9, 2026 · Synced Oct 23, 2026, 11:48 PM EDT
Completed No phase listed Observational

Utility of Bedside Ultrasound in the Prediction of Difficult Airway

NCT00799357
View directory record Official record
Conditions
Laryngoscopy
Interventions
Not listed
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Aug 30, 2023 · Synced Oct 23, 2026, 11:48 PM EDT
Withdrawn Not applicable Interventional

Airway Ultrasound Prediction and Correlation

NCT03313947
View directory record Official record
Conditions
Obstructive Sleep Apnea, Difficult Airway
Interventions
Ultrasound, Questionnaire
Procedure · Other
Lead sponsor
Vidya Raman
Other
Eligibility
3 Years to 12 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 7, 2020 · Synced Oct 23, 2026, 11:48 PM EDT
Withdrawn Not applicable Interventional

Fospropofol for Sedation During Elective Awake Intubation

NCT01289483
View directory record Official record
Conditions
Impaired Airway Clearance
Interventions
fospropofol
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 64 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 18, 2017 · Synced Oct 23, 2026, 11:48 PM EDT
Completed No phase listed Observational

The Difficult Airway

NCT03671824
View directory record Official record
Conditions
Intubation;Difficult
Interventions
Measurements
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
4,022 participants
Timeline
2016 – 2019
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 13, 2020 · Synced Oct 23, 2026, 11:48 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Incidence of Difficult Airway and Difficult Neuraxial Placement in Obstetric Patients

NCT02193542
View directory record Official record
Conditions
Indication for Care or Intervention Related to Labor or Delivery With Baby Delivered
Interventions
Not listed
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
Female only
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Oct 23, 2026, 11:48 PM EDT
Completed No phase listed Observational

Supraglottic Airway Needed To Achieve Ventilation

NCT05190757
View directory record Official record
Conditions
Airway Complication of Anesthesia, Difficult or Failed Intubation
Interventions
Airway and Ventilation
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jul 5, 2023 · Synced Oct 23, 2026, 11:48 PM EDT
Recruiting Not applicable Interventional

Comparison Using a VLS Using GlideRite Stylet Versus TCI Articulating Introducer in Predictive Difficult Intubation

NCT04866472
View directory record Official record
Conditions
Predicted Difficult Airway
Interventions
video-laryngoscope and GlideRite Rigid Stylet, video-laryngoscope and TCI Articulating Introducer Device
Device
Lead sponsor
University of Louisville
Other
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
2
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Feb 20, 2025 · Synced Oct 23, 2026, 11:48 PM EDT
Terminated Not applicable Interventional Results available

Three-dimensional Craniofacial Phenotyping of Patients With Difficult Airway

NCT01630694
View directory record Official record
Conditions
Failed or Difficult Intubation
Interventions
3D Laser Scanning of the Head, Measurements and Digital Photo's of the head, neck and Mouth, Ultrasound Exam of the Tongue
Procedure
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 70 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jan 20, 2016 · Synced Oct 23, 2026, 11:48 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers Results available

Voice Analysis as a Predictor for Difficult Intubations

NCT04105738
View directory record Official record
Conditions
Anesthesia, Difficult Intubation, Difficult Airway Intubation, Speech Dysfunction, Surgery
Interventions
Not listed
Lead sponsor
J. Matthias Walz
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 15, 2022 · Synced Oct 23, 2026, 11:48 PM EDT
Completed Not applicable Interventional

Cohort 2 Efficacy of Nasopharyngeal Ventilation With Endotracheal Tube for Surgery

NCT02018146
View directory record Official record
Conditions
General Anesthesia With Endotracheal Intubation in Surgery
Interventions
Mask then nasopharyngeal, Nasopharyngeal then mask
Other
Lead sponsor
University of Louisville
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 30, 2019 · Synced Oct 23, 2026, 11:48 PM EDT