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ClinicalTrials.gov public records Last synced Oct 2, 2026, 1:34 PM EDT

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Showing 25–48 of 229 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Upper Respiratory Disease Clear all
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 15, 2017 · Synced Oct 2, 2026, 1:34 PM 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 28, 2020 · Synced Oct 2, 2026, 1:34 PM 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Withdrawn Phase 3 Interventional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 18, 2017 · Synced Oct 2, 2026, 1:34 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Immunogenicity and Safety of bioCSL Quadrivalent Influenza Vaccine (QIV) in Adults Aged 18 Years and Above.

NCT02214225
View directory record Official record
Conditions
Influenza, Human
Interventions
Quadrivalent Influenza Vaccine (QIV), Trivalent Influenza Vaccine (TIV-1), Trivalent Influenza Vaccine (TIV-2)
Biological
Lead sponsor
Seqirus
Industry
Eligibility
18 Years and older
Enrollment
3,484 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
33
States / cities
Huntsville, Alabama • Los Angeles, California • San Diego, California + 29 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2017 · Synced Oct 2, 2026, 1:34 PM 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 16, 2024 · Synced Oct 2, 2026, 1:34 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Efficacy of SLN Block for Chronic Cough

NCT04421092
View directory record Official record
Conditions
Cough, Superior Laryngeal Nerve Block, Neurogenic Cough
Interventions
Superior laryngeal nerve block, Injection of placebo (saline), Injection of steroid-lidocaine mixture
Procedure
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 23, 2025 · Synced Oct 2, 2026, 1:34 PM 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 9, 2020 · Synced Oct 2, 2026, 1:34 PM EDT
Completed Not applicable Interventional

Transoral Daytime Neuromuscular Electrical Stimulation in Patients With Simple Snoring

NCT03913494
View directory record Official record
Conditions
Sleep Apnea, Obstructive, Sleep Apnea, Sleep, Snoring
Interventions
Transoral Neurostimulation Device (Snoozeal)
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
2
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 6, 2021 · Synced Oct 2, 2026, 1:34 PM EDT
Completed No phase listed Observational Results available

Reader Study of DeltaView™ Chest Radiograph Software

NCT01261507
View directory record Official record
Conditions
Lung Neoplasm
Interventions
Not listed
Lead sponsor
Georgetown University
Other
Eligibility
35 Years to 100 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Dec 1, 2015 · Synced Oct 2, 2026, 1:34 PM EDT
Completed No phase listed Observational

Removing Fluid Above Breathing Tubes in the Operating Room

NCT01110109
View directory record Official record
Conditions
Pneumonia, Ventilator-Associated
Interventions
Not listed
Lead sponsor
Medtronic - MITG
Industry
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Oct 26, 2010 · Synced Oct 2, 2026, 1:34 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study Evaluating the Pharmacokinetics of Doxylamine Succinate in Children

NCT00796315
View directory record Official record
Conditions
Allergic Rhinitis, Upper Respiratory Infection
Interventions
Doxylamine Succinate USP
Drug
Lead sponsor
Procter and Gamble
Industry
Eligibility
2 Years to 18 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
6
States / cities
Washington D.C., District of Columbia • Louisville, Kentucky • Shreveport, Louisiana + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2013 · Synced Oct 2, 2026, 1:34 PM EDT
Completed Phase 4 Interventional Results available

A Study to Evaluate Cooling Sensation of an Allergy Product in Adults With a History of Allergies

NCT04162795
View directory record Official record
Conditions
Allergic Rhinitis
Interventions
Loratadine (Claritin, BAY76-2211)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 65 Years
Enrollment
468 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Teaneck, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 4, 2021 · Synced Oct 2, 2026, 1:34 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Combined Therapeutic Air Mixture and Electrical Stimulation to Improve Breathing and Hand Function in Spinal Cord Injury

NCT06101199
View directory record Official record
Conditions
Cervical Spinal Cord Injury
Interventions
Acute Intermittent Hypercapnic Hypoxia, Transcutaneous spinal cord stimulation, SHAM Acute Intermittent Hypercapnic Hypoxia, SHAM Transcutaneous spinal cord stimulation
Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 17, 2025 · Synced Oct 2, 2026, 1:34 PM EDT
Completed Phase 2 Interventional Results available

Presatovir in Hematopoietic Cell Transplant Recipients With Respiratory Syncytial Virus Infection of the Upper Respiratory Tract

NCT02254408
View directory record Official record
Conditions
Respiratory Syncytial Virus
Interventions
Presatovir, Placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 75 Years
Enrollment
189 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
27
States / cities
Phoenix, Arizona • Duarte, California • Los Angeles, California + 20 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2018 · Synced Oct 2, 2026, 1:34 PM EDT
Completed Not applicable Interventional Results available

Comparative Outcomes Management With Electronic Data Technology (COMET) Study

NCT01461473
View directory record Official record
Conditions
Sleep Apnea, Obstructive
Interventions
Positive Airway Pressure (PAP), Oral Appliance (OA)
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
4
States / cities
Redwood City, California • Boston, Massachusetts • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated May 17, 2017 · Synced Oct 2, 2026, 1:34 PM EDT
Terminated Not applicable Interventional

A Novel Formulation of Pasteurized Maple Cough Syrup Compared With Placebo on Nocturnal Cough and Sleep Quality in Infants With Upper Respiratory Infection

NCT01588249
View directory record Official record
Conditions
Cough, Upper Respiratory Infection, Nocturnal Cough
Interventions
Pasteurized maple syrup, Placebo
Dietary Supplement
Lead sponsor
Zarbee's Inc.
Industry
Eligibility
Up to 12 Months
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
3
States / cities
Draper, Utah • South Jordan, Utah • West Jordan, Utah
Source: ClinicalTrials.gov public record
Updated Oct 11, 2012 · Synced Oct 2, 2026, 1:34 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Immune Defense Protein Impact On Respiratory Immune Outcomes

NCT07431840
View directory record Official record
Conditions
Upper Respiratory Disease, Influenza, Viral Upper Respiratory Infection
Interventions
Immune Defense Protein 50mg Dose, IDP 200mg Dose, Matching Placebo
Dietary Supplement
Lead sponsor
Quantec Ltd
Industry
Eligibility
60 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Oct 2, 2026, 1:34 PM EDT
Active, not recruiting No phase listed Observational

A Study of the Natural History of Participants With LGMD2E/R4, LGMD2D/R3, LGMD2C/R5, and LGMD2A/R1 ≥ 4 Years of Age, Who Are Managed in Routine Clinical Practice

NCT04475926
View directory record Official record
Conditions
Limb-girdle Muscular Dystrophy
Interventions
Not listed
Lead sponsor
Sarepta Therapeutics, Inc.
Industry
Eligibility
4 Years and older
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2030
U.S. locations
11
States / cities
Phoenix, Arizona • Little Rock, Arkansas • La Jolla, California + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2025 · Synced Oct 2, 2026, 1:34 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Ketamine and Propofol Combination Versus Propofol for Upper Gastrointestinal Endoscopy

NCT02643979
View directory record Official record
Conditions
Obesity, Bariatrics, Sleep Apnea Syndromes, Gastric Bypass, Endoscopy
Interventions
Ketofol, Propofol, Saline
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 11, 2020 · Synced Oct 2, 2026, 1:34 PM EDT
Recruiting Not applicable Interventional

Effects of Lung Volume on Upper Airway Patency During Drug Induced Sleep Endoscopy

NCT05350332
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Negative Pressure Ventilator, Pulmonary Function Testing (PFT), Transcutaneous Phrenic Nerve Stimulation, Percutaneous Phrenic Nerve Stimulation
Device
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Oct 2, 2026, 1:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Three Arm Trial of Immune Effects of Echinacea

NCT01129128
View directory record Official record
Conditions
Upper Respiratory Tract Infections
Interventions
Echinacea purpurea product, Placebo
Biological
Lead sponsor
University of Washington
Other
Eligibility
21 Years to 65 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Kenmore, Washington
Source: ClinicalTrials.gov public record
Updated Jun 21, 2012 · Synced Oct 2, 2026, 1:34 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Factors Involved in Dymista's Superior Clinical Efficacy in the Treatment of Seasonal Allergic Rhinitis

NCT02402465
View directory record Official record
Conditions
Allergic Rhinitis
Interventions
Placebo, Fluticasone propionate, Fluticasone/Azelastine nasal spray, Nasal Allergen Challenge
Drug · Procedure
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 55 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 17, 2024 · Synced Oct 2, 2026, 1:34 PM EDT
Completed Not applicable Interventional Results available

An Evaluation of the Utility of the ExSpiron Respiratory Variation Monitor During Upper GI Endoscopy

NCT02310230
View directory record Official record
Conditions
Biliary Tract Diseases, Stomach Neoplasms, Carcinoma, Pancreatic Ductal, Barrett Esophagus
Interventions
ExSpiron Respiratory Variation Monitor
Device
Lead sponsor
Donald Mathews
Other
Eligibility
21 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Jun 25, 2024 · Synced Oct 2, 2026, 1:34 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Gas Supply, Demand and Middle Ear Gas Balance: Specific Aim 2

NCT00694421
View directory record Official record
Conditions
Upper Respiratory Infection
Interventions
Not listed
Lead sponsor
Cuneyt M. Alper
Other
Eligibility
2 Years to 54 Years
Enrollment
139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 4, 2016 · Synced Oct 2, 2026, 1:34 PM EDT