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Showing 1–20 of 20 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Airway Obstruction Upper Clear all
Completed Not applicable Interventional Results available

Pilot Study of a Self-Supporting Nasopharyngeal Airway in Hypotonia

NCT04846400
View directory record Official record
Conditions
Sleep Apnea, Obstructive, Hypotonia, Child, Only
Interventions
ssNPA
Device
Lead sponsor
University of Michigan
Other
Eligibility
3 Years to 21 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 27, 2023 · Synced Jul 22, 2026, 3:28 AM EDT
Completed No phase listed Observational

A New Flexible Extended-Length Pharyngeal Airway for Deep Sedation

NCT04419883
View directory record Official record
Conditions
Upper Airway Obstruction
Interventions
McMurray Enhanced Airway
Device
Lead sponsor
McMurray Medical Group, LLC
Industry
Eligibility
18 Years and older
Enrollment
86 participants
Timeline
2019 – 2020
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 8, 2020 · Synced Jul 22, 2026, 3:28 AM EDT
Completed Phase 3 Interventional

Placebo and Active Controlled Study to Assess Efficacy and Tolerability of Aspirin Plus Pseudoephedrine

NCT01062360
View directory record Official record
Conditions
Common Cold, Pharyngitis
Interventions
Acetylsalicylic Acid (Aspirin Complex, BAYE4465) + Pseudoephedrine, Acetylsalicylic Acid (Aspirin, BAYE4465), Pseudoephedrine, Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 65 Years
Enrollment
1,016 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 31, 2017 · Synced Jul 22, 2026, 3:28 AM EDT
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 Jul 22, 2026, 3:28 AM EDT
Completed No phase listed Observational

Functional Modeling of the Pediatric Airway

NCT01690078
View directory record Official record
Conditions
Subglottic Stenosis (SGS), Pierre Robin Sequence (PRS), Micrognathia, Normal Controls From CT Scans of the Upper Airway
Interventions
Not listed
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
Up to 17 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 19, 2017 · Synced Jul 22, 2026, 3:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Articulated Oral Airway as an Aid to Mask Ventilation

NCT03144089
View directory record Official record
Conditions
Mask Ventilation, Airway Obstruction Upper, Airway Management
Interventions
Articulated Oral Airway, Guedel oral airway (active comparator)
Device
Lead sponsor
Ron Abrons
Other
Eligibility
18 Years to 99 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 22, 2021 · Synced Jul 22, 2026, 3:28 AM EDT
Completed Not applicable Interventional Results available

Evaluating the Efficiency and Tolerability of the Oxygenating Bite Block

NCT07086378
View directory record Official record
Conditions
Endoscopy, Digestive System, Airway Anesthesia, Airway Control, Airway Management
Interventions
Oxygenating Bite Block
Device
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Jul 22, 2026, 3:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Phamacological Reversal of Airway Instability During Sedation

NCT01171118
View directory record Official record
Conditions
Upper Airway Obstruction
Interventions
Physostigmine, Oxygen, Placebo
Drug
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 26, 2015 · Synced Jul 22, 2026, 3:28 AM EDT
Completed Not applicable Interventional

Nasal Mask Ventilation During the Induction of General Anesthesia

NCT01651286
View directory record Official record
Conditions
Mechanical Ventilation Complication, Upper Airway Obstruction
Interventions
nasal mask, full face mask
Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 17, 2017 · Synced Jul 22, 2026, 3:28 AM EDT
Completed Not applicable Interventional

Safety Study of Continuous Positive Airway Pressure Via a Nasal Mask

NCT01524614
View directory record Official record
Conditions
Upper Airway Obstruction
Interventions
nasal mask
Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 17, 2017 · Synced Jul 22, 2026, 3:28 AM EDT
Withdrawn Phase 3 Interventional

Safety Study of Positive Airway Pressure Via a Nasal Mask in Obese Patients

NCT01627925
View directory record Official record
Conditions
Upper Airway Obstruction
Interventions
nasal mask and continuous positive airway pressure
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 17, 2017 · Synced Jul 22, 2026, 3:28 AM EDT
Recruiting Not applicable Interventional

Self-Supporting Nasopharyngeal Airway (ssNPA) Treating Upper Airway Obstruction in Hypotonia

NCT05527652
View directory record Official record
Conditions
Obstructive Sleep Apnea, Hypertonia, Muscle, Nasal Airway Obstruction, Tolerance, Trisomy 21, Down Syndrome
Interventions
Self-Supporting Nasopharyngeal Airway (ssNPA)
Device
Lead sponsor
University of Michigan
Other
Eligibility
3 Years to 21 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Jul 22, 2026, 3:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Incidence of Sleep-disordered Breathing and Upper Airway Collapsibility in Postpartum Patients and Its Intervention

NCT01719224
View directory record Official record
Conditions
Sleep Disordered Breathing, Upper Airway Collapsibility, Upper Airway Obstruction
Interventions
elevated body position, supine body position
Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 14, 2017 · Synced Jul 22, 2026, 3:28 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Assessment of PPG & PAT to Detect Upper Airway Obstruction in Patients With Obstructive Sleep Apnea

NCT01831583
View directory record Official record
Conditions
Sleep Apnea, Obstructive
Interventions
Measurement of PPG waveforms, Measurement of Pulse Arrival Time (PAT)
Device
Lead sponsor
Sotera Wireless, Inc.
Industry
Eligibility
21 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Escondido, California
Source: ClinicalTrials.gov public record
Updated Apr 14, 2013 · Synced Jul 22, 2026, 3:28 AM EDT
Completed Not applicable Interventional

Evaluation of Auto-EPAP for Management of Upper Airway Obstruction During Non-Invasive Ventilation

NCT06560411
View directory record Official record
Conditions
Obstructive Sleep Apnea, Obesity Hypoventilation Syndrome (OHS), Chronic Obstructive Pulmonary Disease (COPD), Neuromuscular Diseases (NMD)
Interventions
Non-Invasive Ventilation
Device
Lead sponsor
Breas Medical, Inc.
Industry
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
4
States / cities
Scottsdale, Arizona • San Diego, California • Colorado Springs, Colorado + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Jul 22, 2026, 3:28 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Use of High-resolution Manometry to Detect Upper Airway Obstruction During Sleep

NCT04139499
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Drug-induced sleep endoscopy (DISE), High-resolution manometry (HRM):
Procedure
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
5 Years to 90 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Nov 12, 2025 · Synced Jul 22, 2026, 3:28 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, 3:28 AM EDT
Completed Phase 3 Interventional Results available

Astral VAPS AutoEPAP Clinical Trial

NCT02683772
View directory record Official record
Conditions
Upper Airway Obstruction, Respiratory Insufficiency, Respiratory Failure
Interventions
Astral
Device
Lead sponsor
ResMed
Industry
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
5
States / cities
La Jolla, California • Denver, Colorado • Chicago, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 25, 2019 · Synced Jul 22, 2026, 3:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Hemodynamics Response to Upper Airway Obstruction in Marfan Syndrome

NCT03985657
View directory record Official record
Conditions
Sleep-disordered Breathing, Snoring
Interventions
CPAP
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 27, 2020 · Synced Jul 22, 2026, 3:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Mechanisms of Upper Airway Obstruction

NCT04322097
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Hypoglossal Nerve Stimulation
Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
22 Years and older
Enrollment
133 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Jul 22, 2026, 3:28 AM EDT