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Showing 1–24 of 246 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Pulmonary Obstruction 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 21, 2026, 5:31 PM EDT
Terminated Phase 4 Interventional Results available

Aortic Stenosis and PhosphodiEsterase Type 5 iNhibition (ASPEN): A Pilot Study

NCT01275339
View directory record Official record
Conditions
Aortic Stenosis, LV Remodeling, Hypertrophy
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 16, 2019 · Synced Jul 21, 2026, 5:31 PM EDT
Terminated Not applicable Interventional

Effects of High Flow Nasal Cannula on Sputum Clearance in Acute Exacerbation of Chronic Obstructive Pulmonary Disease

NCT04217746
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, COPD Exacerbation, Airflow Obstruction
Interventions
High Flow Nasal Cannula
Device
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 21, 2025 · Synced Jul 21, 2026, 5:31 PM EDT
Completed Not applicable Interventional

Nasal Saline Irrigation After Radiation Therapy for Oropharyngeal Cancer

NCT02338102
View directory record Official record
Conditions
Nasal Obstruction, Rhinitis, Vasomotor, Epistaxis
Interventions
Saline mixture
Other
Lead sponsor
Lisa Shnayder
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 3, 2015 · Synced Jul 21, 2026, 5:31 PM EDT
Completed Phase 2 Interventional Results available

'TOTAL' (Tracheal Occlusion To Accelerate Lung Growth) Trial

NCT02875860
View directory record Official record
Conditions
Hernia, Hernia, Diaphragmatic, Hernia, DIaphragmatic, Congenital, Pathological Conditions, Anatomical, Congenital Abnormalities, Congenital Diaphragmatic Hernia, Fetal Anomaly, Fetal Surgery, Pulmonary Hypoplasia
Interventions
GoldBal2 detachable balloon, Baltaccidbpe100 Delivery Catheter, Standardized postnatal care
Device · Other
Lead sponsor
Michael A Belfort
Other
Eligibility
18 Years to 64 Years · Female only
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 22, 2022 · Synced Jul 21, 2026, 5:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

"Anticipatory Guidance in the Nursery and Its Impact on Non-urgent Emergency Department Visits"

NCT01859065
View directory record Official record
Conditions
Health Knowledge, Attitudes, Practice, Sneezing, Constipation, Nasal Congestion and Inflammations
Interventions
Intensified anticipatory guidance, Routine
Behavioral
Lead sponsor
Bronx-Lebanon Hospital Center Health Care System
Other
Eligibility
Female only
Enrollment
323 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated May 20, 2013 · Synced Jul 21, 2026, 5:31 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 8, 2020 · Synced Jul 21, 2026, 5:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Nasal Hair on Nasal Obstruction

NCT01850511
View directory record Official record
Conditions
Nasal Obstruction
Interventions
Vibrissae trimming, Application of oxymetazoline
Procedure · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 21, 2019 · Synced Jul 21, 2026, 5:31 PM 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 21, 2026, 5:31 PM EDT
Completed No phase listed Observational

Stellate Ganglion Block to Treat Long COVID 19 Case Series

NCT05812209
View directory record Official record
Conditions
Long COVID, Long Covid19, Post-COVID-19 Syndrome, Post Acute COVID-19 Syndrome, Dysautonomia, Anosmia, Dysgeusia, Brain Fog, Muscle Pain, Shortness of Breath, Dizziness, Fatigue Post Viral, Cough, Menstrual Cycle Abnormal, Pain
Interventions
Stellate Ganglion Block
Procedure
Lead sponsor
Metamorphosis LTD
Other
Eligibility
Not listed
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Cañon City, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 12, 2023 · Synced Jul 21, 2026, 5:31 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Point of Care Ultrasound for the Detection of Esophageal Food Bolus

NCT06507670
View directory record Official record
Conditions
Esophageal Foreign Body, Esophageal Obstruction
Interventions
Point of care ultrasound
Diagnostic Test
Lead sponsor
WellSpan Health
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
York, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Jul 21, 2026, 5:31 PM EDT
Completed No phase listed Observational Results available

Airway Limitation Study: Study In Primary Care Centers Of Chronic Bronchitis In Long-Term Cigarette Smokers Of At Least 40 Years Of Age With Symptoms Of Cough And Shortness Of Breath

NCT00442468
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
Non-interventional study.
Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
40 Years and older
Enrollment
1,283 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
47
States / cities
Highlands Ranch, Colorado • Wheat Ridge, Colorado • Clearwater, Florida + 43 more
Source: ClinicalTrials.gov public record
Updated Jan 9, 2013 · Synced Jul 21, 2026, 5:31 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 10, 2025 · Synced Jul 21, 2026, 5:31 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Nasal Obstruction and Olfactory Losses

NCT05920330
View directory record Official record
Conditions
Nasal Obstruction
Interventions
Nasal Plug
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 70 Years
Enrollment
330 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Jul 21, 2026, 5:31 PM EDT
Completed No phase listed Observational

Long-term Safety, Curvature Deformity Characterization, and Immunogenicity Over Time in Subjects Previously Treated With AA4500 for Peyronies Disease

NCT02298829
View directory record Official record
Conditions
Peyronie's Disease
Interventions
Subjects Previously Treated with AA4500
Drug
Lead sponsor
Endo USA Inc., a Keenova Therapeutics Company
Industry
Eligibility
18 Years to 90 Years · Male only
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
30
States / cities
Anchorage, Alaska • Burbank, California • Laguna Hills, California + 27 more
Source: ClinicalTrials.gov public record
Updated Jun 19, 2018 · Synced Jul 21, 2026, 5:31 PM 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 21, 2026, 5:31 PM EDT
Terminated Phase 2 Interventional Results available

Fetal Tracheal Balloon Study in Diaphragmatic Hernia

NCT00966823
View directory record Official record
Conditions
Diaphragmatic Hernia, Lung Disease
Interventions
Fetal tracheal obstruction with detachable balloon (device)
Device
Lead sponsor
Rhode Island Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Jul 21, 2026, 5:31 PM EDT
Enrolling by invitation Not applicable Interventional

Long-term Evaluation of Nasopharyngeal Airway in Hypotonia

NCT06614582
View directory record Official record
Conditions
Hypotonia, Muscle, Obstructive Sleep Apnea, Nasal Airway Obstruction
Interventions
Self-Supporting Nasopharyngeal Airway (ssNPA)
Device
Lead sponsor
University of Michigan
Other
Eligibility
3 Years to 23 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Jul 21, 2026, 5:31 PM EDT
Withdrawn Phase 1 Interventional

A Study of Stellate Ganglion Block and / or Reserpine in Group 2 Pulmonary Hypertension

NCT02684786
View directory record Official record
Conditions
Pulmonary Artery Hypertension
Interventions
reserpine, stellate ganglion block, lidocaine
Drug · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 100 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated May 21, 2019 · Synced Jul 21, 2026, 5:31 PM EDT
Terminated Not applicable Interventional

Evaluation of the Auryzon Devices in the Optimization of Ear and Nose Reconstruction Procedures

NCT03624608
View directory record Official record
Conditions
Ear Deformities, Acquired, Ear; Deformity, Congenital, Microtia, Nose Deformity, Nose Deformities, Acquired, Nose; Deformity, Congenital, Nose; Deformity, Congenital, Bent or Squashed, Nose; Deformity, Syphilitic, Congenital, Nose; Deformity, Bone (Nose Cartilage), Nose; Deformity, Septum, Congenital, Nose; Deformity, Sinus (Wall), Congenital, Nose; Deformity, Syphilitic, Late (Etiology), Ear; Deformity, External, Ear; Deformity, Auricle, Ear, Acquired, Ear; Deformity, Auricle, Ear (Congenital)
Interventions
AuryzoN Family of Devices
Device
Lead sponsor
Reconstrata, LLC
Industry
Eligibility
Not listed
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 22, 2025 · Synced Jul 21, 2026, 5:31 PM EDT
Not yet recruiting Not applicable Interventional

Active vs. Passive VR During Office-based ENT Procedures

NCT07599826
View directory record Official record
Conditions
Pain, Anxiety, Chronic Rhinosinusitis (CRS), Nasal Obstruction, Nasal Polyp, Eustachian Tube Dysfunction, Dysphonia, Subglottic Stenosis (SGS)
Interventions
Virtual reality headset or goggles
Device
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Jul 21, 2026, 5:31 PM EDT
Completed Phase 2 Interventional Results available

Stellate Ganglion Block for COVID-induced Parosmia

NCT06253806
View directory record Official record
Conditions
COVID-19-Induced Parosmia
Interventions
Stellate Ganglion Block, Placebo Sham Injection
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Jul 21, 2026, 5:31 PM EDT
Completed Phase 2 Interventional Results available

A Dose Ranging Study With CHF 1531 in Subjects With Asthma (FLASH)

NCT03086460
View directory record Official record
Conditions
Asthma
Interventions
CHF 1531 pMDI, Formoterol Inhalation Solution, Placebo pMDI
Drug
Lead sponsor
Chiesi Farmaceutici S.p.A.
Industry
Eligibility
18 Years to 75 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
10
States / cities
Tucson, Arizona • Los Angeles, California • Lutherville, Maryland + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 15, 2021 · Synced Jul 21, 2026, 5:31 PM EDT
Completed Phase 4 Interventional

A Study In Pediatric Subjects With Asthma Using ADVAIR HFA, ADVAIR HFA With Spacer, And ADVAIR DISKUS

NCT00400608
View directory record Official record
Conditions
Asthma
Interventions
ADVAIR HFA, ADVAIR DISKUS
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
4 Years to 11 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
3
States / cities
Huntington Beach, California • Long Beach, California • Medford, Oregon
Source: ClinicalTrials.gov public record
Updated Oct 27, 2016 · Synced Jul 21, 2026, 5:31 PM EDT