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Showing 1–24 of 58 matching trials from the live ClinicalTrials.gov search.
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Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of High Velocity/Hyperoxic Breathing Therapy on Blood Lactate Decline

NCT05984186
View directory record Official record
Conditions
Dyspnea, Lactic Acidosis, Muscle, Breathlessness, Exercise, Recovery
Interventions
High Velocity Therapy
Device
Lead sponsor
Vapotherm, Inc.
Industry
Eligibility
18 Years to 30 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Oct 7, 2024 · Synced Sep 10, 2026, 2:26 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Prolonged Hypoxic Breathing in Healthy Volunteers: a Safety Study

NCT02860975
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Inhaled Nitrogen
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 40 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 10, 2026, 2:26 AM EDT
Completed Phase 2 Interventional Results available

High-Flow Oxygen for Dyspnea in Hospitalized Cancer Patients

NCT02932332
View directory record Official record
Conditions
Cancer
Interventions
High-flow Oxygen, Low-flow Oxygen, High-flow Air, Low-flow Air
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 20, 2023 · Synced Sep 10, 2026, 2:26 AM EDT
Not yet recruiting Not applicable Interventional

Perioperative High-flow Nasal Oxygen in Patients Undergoing Robotic Surgery

NCT07591610
View directory record Official record
Conditions
Robotic Surgery
Interventions
High flow nasal oxygen
Device
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Sep 10, 2026, 2:26 AM EDT
Recruiting Not applicable Interventional

Careful Ventilation in Acute Respiratory Distress Syndrome (COVID-19 and Non-COVID-19)

NCT03963622
View directory record Official record
Conditions
ARDS
Interventions
Respiratory Mechanics, Standard Ventilation Strategy
Other
Lead sponsor
Unity Health Toronto
Other
Eligibility
18 Years and older
Enrollment
740 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Sep 10, 2026, 2:26 AM EDT
Completed Early Phase 1 Interventional

Effect of a Novel Intervention Using Daily Intermittent Hypoxia and High Intensity Training on Upper Limb Function in Individuals With Spinal Cord Injury

NCT03643770
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Upper extremity training/Armeo Spring
Combination Product
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 75 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 10, 2026, 2:26 AM EDT
Not yet recruiting Not applicable Interventional

Protocolized Weaning of High-Flow Nasal Cannula in Adult Patients

NCT07452406
View directory record Official record
Conditions
Acute Hypoxemic Respiratory Failure, High-Flow Nasal Cannula Therapy
Interventions
Protocolized HFNC Weaning Strategy, Usual Care HFNC Weaning
Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Sep 10, 2026, 2:26 AM EDT
Withdrawn Not applicable Interventional

Pulmonary Vascular Effects of Respiratory Rate & Carbon Dioxide

NCT01927237
View directory record Official record
Conditions
Low Tidal Volume Ventilation, Acute Respiratory Distress Syndrome
Interventions
HLR, EHR
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 99 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 26, 2017 · Synced Sep 10, 2026, 2:26 AM EDT
Completed Not applicable Interventional

EPVent 2- A Phase II Study of Mechanical Ventilation Directed by Transpulmonary Pressures

NCT01681225
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome
Interventions
Esophageal-pressure guided mechanical ventilation, High PEEP mechanical ventilation
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
16 Years and older
Enrollment
202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
10
States / cities
La Jolla, California • Stanford, California • Orlando, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 2, 2019 · Synced Sep 10, 2026, 2:26 AM EDT
Terminated Not applicable Interventional Results available

Airway Pressure Release Ventilation in Acute Lung Injury

NCT00750204
View directory record Official record
Conditions
Acute Lung Injury, Acute Respiratory Distress Syndrome, Mechanical Ventilation
Interventions
APRV, Conventional MV
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 14, 2017 · Synced Sep 10, 2026, 2:26 AM EDT
Completed Not applicable Interventional Results available

Sleep and Daytime Use of Humidified Nasal High-flow Oxygen in COPD Outpatients

NCT03221387
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive, Hypercapnia, Hypoxia
Interventions
Humidified nasal high flow with oxygen
Device
Lead sponsor
Temple University
Other
Eligibility
40 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 6, 2021 · Synced Sep 10, 2026, 2:26 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Pulmonary Hypertension and Oxygen Saturation Targeting in Preterm Infants

NCT06373289
View directory record Official record
Conditions
Bronchopulmonary Dysplasia, Pulmonary Hypertension
Interventions
higher oxygen saturation target using Nellcor pulse oximetry sensors, lower oxygen saturation target using Nellcor pulse oximetry sensors
Device
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
1 Month to 5 Months
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
2
States / cities
Birmingham, Alabama • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 10, 2026, 2:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Use of High Flow Nasal Cannula During Sedation of Morbidly Obese Patients in the Endoscopy Suite

NCT02859597
View directory record Official record
Conditions
Morbid Obesity, Noninvasive Ventilation, Deep Sedation
Interventions
High flow nasal cannula, Nasal Cannula
Device
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Apr 15, 2020 · Synced Sep 10, 2026, 2:26 AM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Methemoglobin Concentration in High Dose Inhaled Nitric Oxide

NCT05612074
View directory record Official record
Conditions
Healthy Subjects
Interventions
Inhaled Nitric Oxide
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 64 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 10, 2026, 2:26 AM EDT
Terminated Phase 3 Interventional

The Oscillation for Acute Respiratory Distress Syndrome (ARDS) Treated Early (OSCILLATE) Trial

NCT01506401
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome (ARDS)
Interventions
SensorMedics 3100B High Frequency Oscillatory Ventilator, Lung Protective Ventilation
Device · Procedure
Lead sponsor
Canadian Critical Care Trials Group
Other
Eligibility
16 Years to 85 Years
Enrollment
548 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
8
States / cities
Denver, Colorado • Orlando, Florida • Ann Arbor, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2015 · Synced Sep 10, 2026, 2:26 AM EDT
Withdrawn Not applicable Interventional

COVIDNOCHE Trial (HFNO Versus CPAP Helmet) in COVID-19 Pneumonia

NCT04381923
View directory record Official record
Conditions
Severe Acute Respiratory Syndrome Coronavirus 2, Hypoxemic Respiratory Failure, Pneumonia, Viral, COVID
Interventions
Helmet Continuous Positive Airway Pressure (CPAP), High Flow Nasal Oxygen (HFNO)
Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Sep 10, 2026, 2:26 AM EDT
Recruiting Not applicable Interventional

Impact of Intraoperative Oxygenation Practices on Patient Outcomes

NCT07224243
View directory record Official record
Conditions
Surgeries Undergoing General Anesthesia
Interventions
Lower FiO2, Intermediate FiO2, Higher FiO2
Other
Lead sponsor
Frederic T Billings IV
Other
Eligibility
18 Years and older
Enrollment
54,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
4
States / cities
Ann Arbor, Michigan • Omaha, Nebraska • Nashville, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Sep 10, 2026, 2:26 AM EDT
Recruiting Not applicable Interventional

Physiological Effects of Continuous Negative External Pressure for Acute Hypoxemic Respiratory Failure

NCT05675345
View directory record Official record
Conditions
Acute Hypoxemic Respiratory Failure
Interventions
HFNC only, HFNC + CNEP10, HFNC + CNEP20, HFNC + CNEP30
Device
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 3, 2024 · Synced Sep 10, 2026, 2:26 AM EDT
Completed Not applicable Interventional

Late Permissive Hypercapnia for Intubated and Ventilated Preterm Infants

NCT02799875
View directory record Official record
Conditions
Premature Neonate
Interventions
Higher permissive hypercapnia, Lower Permissive Hypercapnia
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
7 Days to 14 Days
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 2, 2021 · Synced Sep 10, 2026, 2:26 AM EDT
Completed Not applicable Interventional

High-Flow Oxygen Therapy Following Tracheostomy

NCT03721419
View directory record Official record
Conditions
Acute Respiratory Failure
Interventions
High Flow High Humidity device, Low Flow High Humidity device
Device
Lead sponsor
Barnes-Jewish Hospital
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 19, 2021 · Synced Sep 10, 2026, 2:26 AM 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 10, 2026, 2:26 AM EDT
Completed Not applicable Interventional

Effects of Nasal High-flow Oxygen in Patients With an Exacerbation of Chronic Obstructive Pulmonary Disease (COPD)

NCT03214458
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
Nasal high flow
Device
Lead sponsor
Temple University
Other
Eligibility
40 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 18, 2018 · Synced Sep 10, 2026, 2:26 AM EDT
Completed Not applicable Interventional Results available

Impact of Prophylactic High Flow Nasal Oxygen in Post-Operative Thoracic Surgical Patients

NCT03024112
View directory record Official record
Conditions
Post-operative Pulmonary Complications
Interventions
Heated humified high-flow nasal cannula Oxygen, Standard oxygen therapy
Device · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 100 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 10, 2026, 2:26 AM EDT
Active, not recruiting No phase listed Observational

Assessment of PaO2/FiO2 Ratio Pre and POst INTubation

NCT05853068
View directory record Official record
Conditions
Acute Hypoxemic Respiratory Failure
Interventions
Mechanical ventilation
Device
Lead sponsor
Hospital Universitario de Gran Canaria Doctor Negrín
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 25, 2025 · Synced Sep 10, 2026, 2:26 AM EDT