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Showing 25–45 of 21 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Difficult Intubation Clear all
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 11, 2016 · Synced Jul 22, 2026, 6:57 AM EDT
Completed Phase 4 Interventional

Comparison of the Video and Macintosh Laryngoscope in Patients Who May be Difficult to Intubate

NCT00178555
View directory record Official record
Conditions
Intubation, Endotracheal
Interventions
DCI Video Intubation System-Macintosh Laryngoscope, Macintosh Laryngoscope
Device
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 80 Years
Enrollment
200 participants
Timeline
2003 – 2007
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 22, 2016 · Synced Jul 22, 2026, 6:57 AM 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 29, 2019 · Synced Jul 22, 2026, 6:57 AM 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 26, 2018 · Synced Jul 22, 2026, 6:57 AM 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 24, 2014 · Synced Jul 22, 2026, 6:57 AM EDT
Terminated No phase listed Observational

Superior Laryngeal Nerve Block For Awake Endotracheal Intubation Study

NCT01848548
View directory record Official record
Conditions
Awake Endotracheal Intubation, Difficult Intubation, Airway Anesthesia
Interventions
Superior Laryngeal Nerve Block using the Thyrohyoid Membrane as an Anatomic Landmark
Procedure
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 80 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 5, 2017 · Synced Jul 22, 2026, 6:57 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Can Neck Circumference Measurements Less Than 43cm or Greater Than 43cm Predict Difficulty of Tracheal Intubation?

NCT01191658
View directory record Official record
Conditions
Neck Circumference, Difficulty of Tracheal Intubation
Interventions
Not listed
Lead sponsor
CAMC Health System
Other
Eligibility
18 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Charleston, West Virginia
Source: ClinicalTrials.gov public record
Updated Jul 14, 2011 · Synced Jul 22, 2026, 6:57 AM 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 27, 2024 · Synced Jul 22, 2026, 6:57 AM EDT
Completed Not applicable Interventional Results available

McGRATH MAC Video Laryngoscope

NCT02250521
View directory record Official record
Conditions
Intubation; Difficult
Interventions
McGrath MAC enhanced direct laryngoscope
Device
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 8, 2018 · Synced Jul 22, 2026, 6:57 AM EDT
Completed Not applicable Interventional Results available

Video-laryngoscope With a Novel Video-stylet for Difficult Intubation

NCT01215695
View directory record Official record
Conditions
Difficult Endotracheal Intubation
Interventions
aScope (Ambu Inc. 6740 Baymeadow Drive Glen Burnie, MD), Control
Device
Lead sponsor
University of Louisville
Other
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Sep 7, 2017 · Synced Jul 22, 2026, 6:57 AM EDT
Recruiting No phase listed Observational

CRICKET: Critical Events in Anaesthetised Kids Undergoing Tracheal Intubation

NCT05804188
View directory record Official record
Conditions
Intubation Complication, Adverse Events
Interventions
tracheal intubation
Other
Lead sponsor
Thomas Riva
Other
Eligibility
Up to 16 Years
Enrollment
105,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
Boston, Massachusetts • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Jul 22, 2026, 6:57 AM EDT
Completed Not applicable Interventional Results available

Comparison of Airway Intubation Devices When Using a Biohazard Suit

NCT01924559
View directory record Official record
Conditions
Intubation; Difficult
Interventions
standard clothing, Biohazard gear, Direct Laryngoscopy, Glidescope, Supraglottic Airway
Other · Device
Lead sponsor
Lehigh Valley Hospital
Other
Eligibility
18 Years to 126 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Allentown, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 8, 2017 · Synced Jul 22, 2026, 6:57 AM 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 Nov 28, 2024 · Synced Jul 22, 2026, 6:57 AM EDT
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 15, 2018 · Synced Jul 22, 2026, 6:57 AM 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 4, 2023 · Synced Jul 22, 2026, 6:57 AM 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 16, 2016 · Synced Jul 22, 2026, 6:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Initial Experience With Storz C-MAC Video Intubation System

NCT01104090
View directory record Official record
Conditions
Intubation; Difficult
Interventions
C-MAC direct laryngoscopy, C-MAC Indirect laryngoscopy
Device
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Jul 22, 2026, 6:57 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 1, 2015 · Synced Jul 22, 2026, 6:57 AM 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 4, 2017 · Synced Jul 22, 2026, 6:57 AM 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 12, 2020 · Synced Jul 22, 2026, 6:57 AM EDT
Recruiting No phase listed Observational

Improving Safety and Quality of Tracheal Intubation Practice in Pediatric ICUs

NCT02493478
View directory record Official record
Conditions
Failed or Difficult Intubation, Sequela, Intubation; Difficult, Intubation Complication
Interventions
Not listed
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
Not listed
Enrollment
150,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2030
U.S. locations
63
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 50 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Jul 22, 2026, 6:57 AM EDT