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ClinicalTrials.gov public records Last synced Sep 10, 2026, 4:39 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Higher FiO2 Clear all
Completed Phase 2Phase 3 Interventional Results available

Does High Intraoperative Inspired Oxygen Reduce Postoperative Arterial Oxygen Saturation?

NCT00715741
View directory record Official record
Conditions
Atelectasis
Interventions
FiO2 (fraction of inspired oxygen) 0.3 plus PEEP (positive end expiratory pressure) 3 -5 cm water, FiO2 0.3 without PEEP, FiO2 >0.9 with 3-5 cm water PEEP, FiO2 >0.9 without PEEP
Other
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 17, 2010 · Synced Sep 10, 2026, 4:39 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Comparison of Pharyngeal Oxygen Delivery by Different Oxygen Masks

NCT02523586
View directory record Official record
Conditions
Hypoxemia, Trauma, Acute Myocardial Infarction
Interventions
Oxygen administration
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 70 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 31, 2018 · Synced Sep 10, 2026, 4:39 AM EDT
Terminated Not applicable Interventional Results available

Maintaining Optimal HVNI Delivery Using Automatic Titration of Oxygen in Preterm Infants

NCT05030012
View directory record Official record
Conditions
Infant, Premature, Neonatal Respiratory Distress, Oxygen Saturation, Bronchopulmonary Dysplasia
Interventions
Automated Control, Manual Control
Device
Lead sponsor
Vapotherm, Inc.
Industry
Eligibility
Not listed
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
3
States / cities
Washington D.C., District of Columbia • Salt Lake City, Utah • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 25, 2024 · Synced Sep 10, 2026, 4:39 AM EDT
Completed No phase listed Observational

Prematurity-Related Ventilatory Control

NCT03464396
View directory record Official record
Conditions
Respiratory Control in Premature Infants
Interventions
Bedside Physiology study, Carotid Body Function Test, Room Air Challenge, Hypoxia Challenge Test, Effects of Nasal Cannula Flow, Magnetic Resonance Imaging, Echocardiogram, Blood Sample
Other · Diagnostic Test
Lead sponsor
Washington University School of Medicine
Other
Eligibility
1 Day to 28 Days
Enrollment
177 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 30, 2023 · Synced Sep 10, 2026, 4:39 AM EDT
Recruiting Not applicable Interventional

HFNC vs NIPPV Following Extubation

NCT05869825
View directory record Official record
Conditions
Congenital Heart Disease
Interventions
High Flow Nasal Canula following extubation, Non-Invasive Positive Pressure Ventilation following extubation
Procedure
Lead sponsor
Emory University
Other
Eligibility
Up to 1 Year
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Sep 10, 2026, 4:39 AM EDT
Terminated Not applicable Interventional Results available

Providing Optimal PEEP During Mechanical Ventilation for Obese Patients Using Esophageal Balloon

NCT03951064
View directory record Official record
Conditions
Obesity, Morbid, Ventilator-Induced Lung Injury, Respiratory Failure
Interventions
Esophageal balloon, Intervention Spontaneous Breathing Trial (SBT) and Extubation, Control Spontaneous Breathing Trial and Extubation, Intervention Weaning after Tracheostomy, Control Weaning after Tracheostomy
Device · Procedure
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 4, 2024 · Synced Sep 10, 2026, 4:39 AM EDT
Completed Not applicable Interventional Results available

Pilot Study of High-flow Humidified Nasal Oxygen During Breaks From Noninvasive Ventilation

NCT01925534
View directory record Official record
Conditions
Acute Respiratory Failure, Treatment With Noninvasive Positive Pressure Ventilation
Interventions
High-flow humidified nasal oxygen delivery system, Standard oxygen therapy
Device
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
2
States / cities
Boston, Massachusetts • Winchester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 2, 2024 · Synced Sep 10, 2026, 4:39 AM EDT
Completed Not applicable Interventional

Strategy to Avoid Excessive Oxygen Using an Autonomous Oxygen Titration Intervention

NCT06374225
View directory record Official record
Conditions
Critical Illness, Wounds and Injury, Disease Attributes, Pathologic Processes
Interventions
Automated Titration (O2matic)
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
4
States / cities
Aurora, Colorado • Winston-Salem, North Carolina • Portland, Oregon + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 10, 2026, 4:39 AM EDT
Terminated Not applicable Interventional Results available

The Use of High Flow Nasal Cannula, Standard Face Mask and Standard Nasal Cannula in Morbidly Obese Patients

NCT03479905
View directory record Official record
Conditions
Desaturation of Blood, Colonoscopy
Interventions
Salter nasal cannula, Face mask, High Flow Nasal Cannula
Other · Device
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
143 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Aug 12, 2024 · Synced Sep 10, 2026, 4:39 AM EDT
Active, not recruiting Not applicable Interventional

PROSpect: Prone and Oscillation Pediatric Clinical Trial

NCT03896763
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome in Children
Interventions
Either supine or prone positioning and either CMV or HFOV
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
2 Weeks to 20 Years
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
28
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 24 more
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 10, 2026, 4:39 AM EDT
Completed Not applicable Interventional Results available

Physiological Changes With High-Flow Nasal Cannula

NCT03700606
View directory record Official record
Conditions
Respiratory Distress Syndrome in Premature Infant
Interventions
High flow nasal cannula, Nasal CPAP
Procedure
Lead sponsor
Sharp HealthCare
Other
Eligibility
23 Weeks to 28 Weeks
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Sep 10, 2026, 4:39 AM EDT
Not listed Not applicable Interventional

Daily Intermittent Hypoxia and Task-Specific Upper Limb Training in Persons With Chronic Incomplete SCI

NCT03262766
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Acute Intermittent Hypoxia (AIH), Upper extremity training, Sham Acute intermittent hypoxia
Other · Behavioral
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 70 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 18, 2020 · Synced Sep 10, 2026, 4:39 AM EDT
Completed No phase listed Observational

OPTiMASK: Comparison of Pre-oxygenation With Standard Face Mask Combined With High Flow Nasal Oxygen With Pre-oxygenation With Standard Face Mask Alone

NCT05495841
View directory record Official record
Conditions
Surgery
Interventions
Pre-oxygenation
Device
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 29, 2023 · Synced Sep 10, 2026, 4:39 AM EDT
Completed Not applicable Interventional

Tolerance and Acute Effects of a New HFNT Nasal Cannula

NCT05182294
View directory record Official record
Conditions
COPD Exacerbation Acute
Interventions
AIRVO 2, the new asymmetric nasal cannula
Device
Lead sponsor
Temple University
Other
Eligibility
40 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 5, 2023 · Synced Sep 10, 2026, 4:39 AM 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 10, 2026, 4:39 AM EDT
Active, not recruiting No phase listed Observational

ARDS in Children and ECMO Initiation Strategies Impact on Neurodevelopment (ASCEND)

NCT05388708
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome, Extracorporeal Membrane Oxygenation
Interventions
ECMO support, PROSpect protocolized therapies
Device · Other
Lead sponsor
University of Michigan
Other
Eligibility
14 Days to 20 Years
Enrollment
550 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
72
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 62 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Sep 10, 2026, 4:39 AM EDT
Completed Not applicable Interventional Results available

Early PP With HFNC Versus HFNC in COVID-19 Induced Moderate to Severe ARDS

NCT04325906
View directory record Official record
Conditions
Prone Positioning, High Flow Nasal Cannula, Acute Respiratory Distress Syndrome, Corona Virus Infection
Interventions
high flow nasal cannula (HFNC), Prone positioning (PP)
Device · Procedure
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 1, 2022 · Synced Sep 10, 2026, 4:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of High FIO2 on Post-ERCP Pancreatitis.

NCT04876768
View directory record Official record
Conditions
Post-ERCP Pancreatitis
Interventions
Use of different concentrations of oxygen during ERCP
Procedure
Lead sponsor
Syed Z. Ali, MD
Other
Eligibility
18 Years to 100 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Nov 3, 2022 · Synced Sep 10, 2026, 4:39 AM EDT
Terminated Not applicable Interventional

High Flow Nasal Cannula (HFNC) Initiation Flow Rate Study

NCT04517344
View directory record Official record
Conditions
Bronchiolitis
Interventions
Initial Flow Rate
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
7 Days to 12 Months
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 15, 2025 · Synced Sep 10, 2026, 4:39 AM EDT
Not listed Not applicable Interventional

HFNC Versus Conventional Nasal Cannula in Oxygen Performance in Patients Receiving Colonoscopy Under IV Sedation

NCT02968706
View directory record Official record
Conditions
Desaturation of Blood
Interventions
High Flow Nasal Cannula, Conventional Nasal Cannula, Patient satisfaction questionnaire
Device · Other
Lead sponsor
Aventura Hospital and Medical Center
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Aventura, Florida
Source: ClinicalTrials.gov public record
Updated Feb 19, 2017 · Synced Sep 10, 2026, 4:39 AM EDT
Terminated Not applicable Interventional Results available

Ventilation With High Oxygen Content and Postoperative Pneumocephalus

NCT02722928
View directory record Official record
Conditions
Pneumocephalus
Interventions
Controlled Ventilation with 100% oxygen
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 3, 2019 · Synced Sep 10, 2026, 4:39 AM EDT
Withdrawn Phase 2 Interventional

Airway Pressure Release Ventilation (APRV) Compared to ARDSnet Ventilation

NCT00793013
View directory record Official record
Conditions
Acute Lung Injury, Adult Respiratory Distress Syndrome, Kidney Injury
Interventions
Volume-Cycled Assist-Control (AC) mode, Airway Pressure Release Ventilation (APRV) mode
Device
Lead sponsor
University of Tennessee, Chattanooga
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Chattanooga, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 3, 2020 · Synced Sep 10, 2026, 4:39 AM EDT
Active, not recruiting Not applicable Interventional

Delayed Cord Clamping With Oxygen In Extremely Low Gestation Infants

NCT04413097
View directory record Official record
Conditions
IVH- Intraventricular Hemorrhage, Extreme Prematurity, Hypoxia Neonatal, Hyperoxia, Respiratory Insufficiency
Interventions
Delayed Cord Clamping with Low Oxygen concentration, Delayed Cord Clamping with High Oxygen concentration
Procedure
Lead sponsor
Sharp HealthCare
Other
Eligibility
22 Weeks to 28 Weeks
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
3
States / cities
Davis, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated Jun 11, 2025 · Synced Sep 10, 2026, 4:39 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluate Long Term Cardiovascular and Pulmonary Complications After COVID-19 With Point of Care Ultrasound

NCT04756193
View directory record Official record
Conditions
Covid19, Echocardiography, Ultrasound
Interventions
Point of care ultrasound including echocardiography, lung ultrasound, vascular ultrasound
Diagnostic Test
Lead sponsor
University of Louisville
Other
Eligibility
18 Years and older
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Oct 29, 2024 · Synced Sep 10, 2026, 4:39 AM EDT