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Showing 1–24 of 203 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Nasal Cannula Clear all
Not listed Not applicable Interventional

A Pilot Study Comparing Oxygen Delivery Via Helmet Interface Versus High Flow Nasal Cannula

NCT04035460
View directory record Official record
Conditions
Hypoxemic Respiratory Failure
Interventions
Helmet, High Flow Nasal Oxygen
Device
Lead sponsor
Baystate Medical Center
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Springfield, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 21, 2021 · Synced Sep 4, 2026, 8:06 PM EDT
Completed Not applicable Interventional

Prematurity Related Ventilatory Control (PRE-VENT) - Specific Aim 3

NCT03333174
View directory record Official record
Conditions
Infant,Premature
Interventions
Cardiorespiratory monitoring
Diagnostic Test
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
1 Day to 98 Days
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 20, 2021 · Synced Sep 4, 2026, 8:06 PM EDT
Completed Not applicable Interventional Results available

A Trial To Assess Risk of Delirium in Older Adults Undergoing Hip Fracture Surgery With Spinal or General Anesthesia

NCT02190903
View directory record Official record
Conditions
Postoperative Complications, Hip Fracture, Delirium
Interventions
General endotracheal anesthesia, Regional (spinal) Anesthesia
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 29, 2018 · Synced Sep 4, 2026, 8:06 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Pre-oxygenation With Real Time End-tidal Oxygen Measurements Versus Single Breath Measurements

NCT03840486
View directory record Official record
Conditions
Rapid Sequence Intubation
Interventions
Non-rebreather mask (NRBM), Non-invasive ventilator mask (NIV), Nasal cannula EtO2 sensor, Oxygen (NRBM), Oxygen (NIV)
Device · Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 12, 2025 · Synced Sep 4, 2026, 8:06 PM EDT
Not yet recruiting Phase 2 Interventional

Pressure Targeting During High Flow Therapy in Premature Infants

NCT07418502
View directory record Official record
Conditions
Preterm Infants, Respiratory Distress Syndrome (Neonatal), BPD - Bronchopulmonary Dysplasia
Interventions
Pressure Targeted High Flow, CPAP
Procedure
Lead sponsor
University of Texas at Austin
Other
Eligibility
7 Days to 40 Weeks
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
2
States / cities
San Diego, California • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Sep 4, 2026, 8:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

High Flow Nasal Cannula Versus Nasal Continuous Positive Airway Pressure

NCT01531465
View directory record Official record
Conditions
Respiratory Insufficiency
Interventions
Pulmonary Function Testing & esophageal pressure monitoring, Pulmonary function testing and esophageal pressure
Other
Lead sponsor
Christiana Care Health Services
Other
Eligibility
2 Days to 6 Months
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Jun 3, 2013 · Synced Sep 4, 2026, 8:06 PM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

Infant Pulmonary Mechanics: High Flow Nasal Cannula Versus Nasal CPAP

NCT01939067
View directory record Official record
Conditions
Respiratory Distress, Lung Injury
Interventions
Heated Humidified High Flow Nasal Cannula, Nasal Continuous Positive Airway Pressure
Device
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
2 Hours to 72 Hours
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 14, 2015 · Synced Sep 4, 2026, 8:06 PM EDT
Terminated Not applicable Interventional Results available

Effect of Synchronized vs. Continuous HFNC Using NAVA on WOB in Infants With BPD

NCT04274192
View directory record Official record
Conditions
Bronchopulmonary Dysplasia
Interventions
Synchronized HFNC at 6 liters per minute (LPM), Continuous HFNC at 6 liters per minute (LPM), Synchronized HFNC at 8 liters per minute (LPM), Continuous HFNC at 8 liters per minute (LPM)
Other
Lead sponsor
University of Arkansas
Other
Eligibility
28 Days to 1 Year
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated May 4, 2022 · Synced Sep 4, 2026, 8:06 PM EDT
Not listed Not applicable Interventional

Heated High Flow Oxygen Use in Infants With Bronchiolitis and Hypoxia

NCT01662544
View directory record Official record
Conditions
Bronchiolitis, Hypoxia
Interventions
Oxygen delivery
Procedure
Lead sponsor
Children's Hospitals and Clinics of Minnesota
Other
Eligibility
3 Months to 18 Months
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 18, 2017 · Synced Sep 4, 2026, 8:06 PM EDT
Recruiting Not applicable Interventional

Laryngoscopy for Neonatal and Infant Airway Management wIth Supplemental Oxygen at Different Flow Rates (OPTIMISE-2)

NCT05967507
View directory record Official record
Conditions
Airway Management
Interventions
Low-flow nasal supplemental oxygen with a conventional nasal cannula during tracheal intubation with the C-MAC video laryngoscope, High-flow nasal supplemental oxygen (Fisher & Paykel, Auckland, New Zealand) during tracheal intubation with the C-MAC video laryngoscope
Device
Lead sponsor
Thomas Riva
Other
Eligibility
Up to 52 Weeks
Enrollment
1,192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Sep 4, 2026, 8:06 PM EDT
Not listed Not applicable Interventional

Effects of High Flow Nasal Cannula on Deadspace Reduction and Regional Distribution of Ventilation

NCT02460653
View directory record Official record
Conditions
Respiratory Insufficiency, Hypoxia
Interventions
HFNC Flow Rate
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
4 Weeks to 17 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
2
States / cities
Boston, Massachusetts • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 3, 2019 · Synced Sep 4, 2026, 8:06 PM EDT
Completed Not applicable Interventional

Palliative Oxygen for the Relief of Breathlessness

NCT00327873
View directory record Official record
Conditions
Dyspnea
Interventions
Oxygen, Medical Air
Other
Lead sponsor
National Health and Medical Research Council, Australia
Other
Eligibility
18 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 13, 2009 · Synced Sep 4, 2026, 8:06 PM EDT
Terminated Not applicable Interventional Results available

Helium-oxygen Gas Mixtures Delivered by a High Flow Nasal Cannula in Bronchiolitis

NCT02373683
View directory record Official record
Conditions
Bronchiolitis, Heliox, Pediatrics
Interventions
Vapotherm-Heliox
Device
Lead sponsor
Case Western Reserve University
Other
Eligibility
Up to 2 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 1, 2022 · Synced Sep 4, 2026, 8:06 PM EDT
Terminated Phase 3 Interventional

A Study to Assess Pulsed Inhaled Nitric Oxide in Subjects With Pulmonary Fibrosis at Risk for Pulmonary Hypertension

NCT03267108
View directory record Official record
Conditions
Pulmonary Fibrosis, Pulmonary Hypertension
Interventions
INOpulse®, Placebo, Open Label Extension
Combination Product
Lead sponsor
Bellerophon Pulse Technologies
Industry
Eligibility
18 Years to 80 Years
Enrollment
145 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
61
States / cities
Birmingham, Alabama • Phoenix, Arizona • Fresno, California + 49 more
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced Sep 4, 2026, 8:06 PM EDT
Completed No phase listed Observational

Improving the Efficiency of the Digital Sleep Workflow Using MATRx Plus

NCT03579225
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
MATRx plus test
Device
Lead sponsor
Zephyr Sleep Technologies
Industry
Eligibility
18 Years and older
Enrollment
6 participants
Timeline
2018 – 2019
U.S. locations
1
States / cities
Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 17, 2019 · Synced Sep 4, 2026, 8:06 PM EDT
Completed Not applicable Interventional

Reducing Reintubation Risk in High-Risk Cardiac Surgery Patients With High-Flow Nasal Cannula

NCT04782817
View directory record Official record
Conditions
Intubation, Cardiovascular Surgical Procedure
Interventions
Recommendation for high flow nasal cannula oxygen therapy order set, Provider choice standard care order set
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
3,568 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced Sep 4, 2026, 8:06 PM EDT
Completed Not applicable Interventional

Oxygen Savings With Administered Oxygen and High Flow Ambient Air At Rest

NCT04170062
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive, Lung Diseases, Interstitial, Pulmonary Fibrosis, Hypoxemia, Dyspnea, Oxygen Inhalation Therapy
Interventions
Nasal Delivery of High-Flow Air and Oxygen Therapy, Nasal Delivery of Oxygen Therapy
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
30 Years to 100 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 23, 2024 · Synced Sep 4, 2026, 8:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effects of Different Flow Settings on Lung Impedance

NCT06228703
View directory record Official record
Conditions
Healthy
Interventions
High-flow nasal cannula device with flow setting at 40 L/min or higher
Device
Lead sponsor
Rush University Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Forest Park, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Sep 4, 2026, 8:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Transnasal Therapy for Acute Migraine Attack

NCT04129567
View directory record Official record
Conditions
Migraine Disorders
Interventions
Humidified oxygen, Dry oxygen, Humidified air, Dry air
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 70 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 16, 2020 · Synced Sep 4, 2026, 8:06 PM EDT
Not listed Phase 2 Interventional

A Study to Assess Pulsed Inhaled Nitric Oxide in Subjects With Pulmonary Hypertension Associated With Pulmonary Fibrosis

NCT05747508
View directory record Official record
Conditions
Pulmonary Fibrosis, Pulmonary Hypertension
Interventions
INOpulse®, Placebo, Long Term Follow Up
Combination Product
Lead sponsor
Bellerophon
Industry
Eligibility
18 Years to 85 Years
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
23
States / cities
Phoenix, Arizona • Los Angeles, California • Sacramento, California + 19 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2023 · Synced Sep 4, 2026, 8:06 PM EDT
Not listed Not applicable Interventional

SuperNO2VA™ and General Anesthesia Postoperative Care

NCT03969615
View directory record Official record
Conditions
Hypoxemia, Acute Respiratory Failure
Interventions
SuperNO2VA nasal positive airway pressure devic, Supplemental oxygen
Device
Lead sponsor
Vyaire Medical
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 2, 2019 · Synced Sep 4, 2026, 8:06 PM EDT
Terminated Not applicable Interventional Results available

HFNC Effect on BCSS in Patients With COPD

NCT02825043
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
High-Flow Nasal Cannula
Device
Lead sponsor
University of Oklahoma
Other
Eligibility
35 Years to 80 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jun 28, 2020 · Synced Sep 4, 2026, 8:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Clinical Stabilization of Hypercapnia: NIPPV v HVNI

NCT04709562
View directory record Official record
Conditions
Hypercapnic Respiratory Failure, Chronic Obstructive Pulmonary Disease, Dyspnea, Hypercapnic Acidosis
Interventions
High Velocity Nasal Insufflation (HVNI), Noninvasive Positive Pressure Ventilation (NIPPV)
Device
Lead sponsor
Vapotherm, Inc.
Industry
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
7
States / cities
Los Angeles, California • Oxnard, California • Washington D.C., District of Columbia + 4 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2024 · Synced Sep 4, 2026, 8:06 PM EDT
Withdrawn Phase 3 Interventional

Study to Assess Acute Vasodilation Response of Inhaled Nitric Oxide

NCT02436512
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Inhaled Nitric Oxide
Drug
Lead sponsor
Geno LLC
Industry
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
2
States / cities
Birmingham, Alabama • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 6, 2015 · Synced Sep 4, 2026, 8:06 PM EDT