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Showing 1–24 of 45 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Difficult Intubation Clear all
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 21, 2021 · Synced Jul 22, 2026, 5:02 AM EDT
Completed Not applicable Interventional Results available

Red-Rubber Catheter to Facilitate Nasotracheal Intubation in Adult Patients

NCT03779984
View directory record Official record
Conditions
Intubation;Difficult
Interventions
Red Rubber Catheter, Standard nasal tracheal Intubation
Device
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
2
States / cities
Dallas, Texas • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 20, 2024 · Synced Jul 22, 2026, 5:02 AM EDT
Completed Not applicable Interventional

Nasotracheal Intubation With VL vs DL in Infants Trial

NCT05433155
View directory record Official record
Conditions
Intubation Complication, Intubation; Difficult or Failed, Hypoxia, Hypoxemia, Anesthesia Intubation Complication, Pediatric HD
Interventions
Nasotracheal intubation
Device
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
1 Day to 365 Days
Enrollment
680 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
8
States / cities
Aurora, Colorado • Washington D.C., District of Columbia • Philadelphia, Pennsylvania + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Jul 22, 2026, 5:02 AM 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 10, 2025 · Synced Jul 22, 2026, 5:02 AM EDT
Completed Phase 4 Interventional

Nasogastric Tube Insertion Using Midazolam in the Emergency Department

NCT01375634
View directory record Official record
Conditions
Intubation; Difficult
Interventions
Midazolam
Drug
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Jul 21, 2013 · Synced Jul 22, 2026, 5:02 AM 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 4, 2018 · Synced Jul 22, 2026, 5:02 AM EDT
Completed No phase listed Observational Results available

Evaluation of Video Laryngoscopy in Patients With Head and Neck Pathology

NCT03265938
View directory record Official record
Conditions
Difficult Intubation
Interventions
Indirect Laryngoscopy
Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 1, 2020 · Synced Jul 22, 2026, 5:02 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Expert Consensus Statements for the Management of a Physiologically Difficult Airway Using the Delphi Method (PDADelphi)

NCT05762068
View directory record Official record
Conditions
Intubation; Difficult or Failed, Intubation Complication, Hemodynamic Instability, Critical Illness
Interventions
Delphi procedure
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 27, 2024 · Synced Jul 22, 2026, 5:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Manikin To Patient Intubation: Does It Translate?

NCT03046966
View directory record Official record
Conditions
Intubation; Difficult or Failed
Interventions
Intervention: Receives Training, Intervention: Control No Training
Procedure · Other
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 89 Years
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Jul 6, 2021 · Synced Jul 22, 2026, 5:02 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Upper Airway Ultrasound to Predict Difficult Laryngoscopy in Neonates and Infants

NCT07444528
View directory record Official record
Conditions
Neonates, Infants Aged 0 Days to 12 Months Scheduled for Elective Surgery
Interventions
Upper airway ultrasound
Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
Up to 365 Days
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Jul 22, 2026, 5:02 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Comparison Between Two Video Laryngoscopes,in Successfully Intubating Pediatric Mannequins w/wo Difficult Airways

NCT02198742
View directory record Official record
Conditions
Intubation; Difficult
Interventions
Miller blade, Truview PCD, Glidescope Cobolt
Device
Lead sponsor
Baylor College of Medicine
Other
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 2, 2015 · Synced Jul 22, 2026, 5:02 AM 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 19, 2016 · Synced Jul 22, 2026, 5:02 AM 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 19, 2025 · Synced Jul 22, 2026, 5:02 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Facial Analysis to Classify Difficult Intubation

NCT01612949
View directory record Official record
Conditions
Difficult Intubation
Interventions
photographing head and neck
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 99 Years
Enrollment
3,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2027
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Jul 22, 2026, 5:02 AM EDT
Terminated Not applicable Interventional Results available

Use of Dexmedetomidine to Facilitate Extubation in Surgical ICU Patients Who Failed Previous Weaning Attempts

NCT00464490
View directory record Official record
Conditions
Intubation; Difficult, Respiration Disorders
Interventions
Dexmedetomidine
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 69 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 30, 2014 · Synced Jul 22, 2026, 5:02 AM 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 17, 2017 · Synced Jul 22, 2026, 5:02 AM EDT
Completed Not applicable Interventional Results available

Head Motion in Pediatric Patients Endotracheally Intubated With Video Laryngoscopy Versus Direct Laryngoscopy

NCT02405390
View directory record Official record
Conditions
Intubation; Difficult, Cervical Spine Injury
Interventions
Video Laryngoscopy, Direct Laryngoscopy, Storz C-Mac® laryngoscope
Procedure · Device
Lead sponsor
Nicklaus Children's Hospital f/k/a Miami Children's Hospital
Other
Eligibility
Up to 8 Years
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 11, 2017 · Synced Jul 22, 2026, 5:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Glottic View in Infants With a Shoulder Roll

NCT03424070
View directory record Official record
Conditions
Intubation;Difficult
Interventions
Shoulder Roll, No shoulder roll (placebo)
Other
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
1 Day to 1 Year
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated May 14, 2018 · Synced Jul 22, 2026, 5:02 AM EDT
Terminated Not applicable Interventional Results available

King Vision Video Laryngoscope Versus Glidescope Video Laryngoscope

NCT02324465
View directory record Official record
Conditions
Difficult Intubation
Interventions
King Vision Video Laryngoscope, Glidescope Video Laryngoscope
Device
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 22, 2019 · Synced Jul 22, 2026, 5:02 AM EDT
Terminated Not applicable Interventional Results available

Novel Airway Device to Aid Endotracheal Intubations

NCT03340207
View directory record Official record
Conditions
Intubation Complication, Intubation;Difficult
Interventions
Pneumaglide
Device
Lead sponsor
University at Buffalo
Other
Eligibility
18 Years to 75 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Oct 13, 2022 · Synced Jul 22, 2026, 5:02 AM 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 14, 2022 · Synced Jul 22, 2026, 5:02 AM EDT
Completed Not applicable Interventional Results available

Tracheal Intubation Coaching in NICUs

NCT03194503
View directory record Official record
Conditions
Failed or Difficult Intubation, Sequela, Intubation;Difficult, Intubation Complication
Interventions
VL Coaching training using C-MAC video laryngoscope
Device
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
22 Years to 70 Years
Enrollment
1,512 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
8
States / cities
La Jolla, California • Aurora, Colorado • New Haven, Connecticut + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2021 · Synced Jul 22, 2026, 5:02 AM 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 21, 2019 · Synced Jul 22, 2026, 5:02 AM EDT
Completed No phase listed Observational

Evaluation of Prophylactic Endotracheal Intubation

NCT03716466
View directory record Official record
Conditions
Intubation;Difficult, Gastrointestinal Bleeding
Interventions
Endotracheal intubation, No airway intervention
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
65 participants
Timeline
2018 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 22, 2022 · Synced Jul 22, 2026, 5:02 AM EDT