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ClinicalTrials.gov public records Last synced Oct 6, 2026, 1:05 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 73–96 of 166 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Fraction of Inspired Oxygen Clear all
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 19, 2018 · Synced Oct 6, 2026, 1:05 AM EDT
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 8, 2024 · Synced Oct 6, 2026, 1:05 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 3, 2024 · Synced Oct 6, 2026, 1:05 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 3, 2021 · Synced Oct 6, 2026, 1:05 AM EDT
Recruiting Not applicable Interventional

Optimization of Saturation Targets And Resuscitation Trial (OptiSTART)

NCT05849077
View directory record Official record
Conditions
Premature Infants, Bronchopulmonary Dysplasia, Intraventricular Hemorrhage, Neurodevelopmental Outcomes
Interventions
Sat75, Sat50
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
0 Minutes to 10 Minutes
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Oct 6, 2026, 1:05 AM EDT
Not listed No phase listed Observational

Measuring Lung Pressures in Critically Ill Children Who Are on Mechanical Ventilation

NCT02354365
View directory record Official record
Conditions
Transpulmonary Pressure, Pressure.Rate Product, Guide to Mechanical Ventilator Management, Extubation Readiness
Interventions
Transpulmonary Pressure measurement
Device
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
1 Week to 18 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 15, 2024 · Synced Oct 6, 2026, 1:05 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 2, 2025 · Synced Oct 6, 2026, 1:05 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 15, 2017 · Synced Oct 6, 2026, 1:05 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 Sep 16, 2026 · Synced Oct 6, 2026, 1:05 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Breathing Mild Bouts of Low Oxygen on Limb Mobility After Spinal Injury

NCT02323945
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
AIH, Walk, Strength
Other
Lead sponsor
Spaulding Rehabilitation Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2027
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 20, 2026 · Synced Oct 6, 2026, 1:05 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 30, 2023 · Synced Oct 6, 2026, 1:05 AM EDT
Completed Not applicable Interventional

Adaptive Support Ventilation in Acute Respiratory Distress Syndrome

NCT03715751
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome
Interventions
ASV, Lung Protective Ventilation
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 8, 2022 · Synced Oct 6, 2026, 1:05 AM EDT
Withdrawn Not applicable Interventional

Intra-operative Fraction of Inspired Oxygen and Lung Injury in Coronary Artery Bypass Grafting Surgery

NCT04115501
View directory record Official record
Conditions
Lung Injury, Pulmonary Complication
Interventions
Fraction of Inspired Oxygen
Other
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Feb 15, 2024 · Synced Oct 6, 2026, 1:05 AM EDT
Recruiting Not applicable Interventional

WIN Ratio Analysis to Determine a Strategy of Non- Invasive SUpport for Respiratory Failure in the EmeRgency Department

NCT07558265
View directory record Official record
Conditions
Acute Hypoxic Respiratory Failure, Acute Respiratory Distress Syndrome (ARDS)
Interventions
Non-Invasive Positive Pressure Ventilation, High Flow Nasal Oxygen
Device
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
6
States / cities
Tucson, Arizona • Ann Arbor, Michigan • Columbus, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 6, 2026, 1:05 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 7, 2026 · Synced Oct 6, 2026, 1:05 AM EDT
Not listed Not applicable Interventional

Cerebral Monitor Guided Therapy on Cerebral Outcomes After Cardiac Surgery

NCT03316183
View directory record Official record
Conditions
Cardiac Surgery, Protein Metabolomics, Cerebral Function, Cardiopulmonary Bypass
Interventions
Perioperative and postoperative management
Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 23, 2021 · Synced Oct 6, 2026, 1:05 AM EDT
Terminated Phase 2 Interventional Results available

Tocilizumab for Prevention of Respiratory Failure in Patients With Severe COVID-19 Infection

NCT04377659
View directory record Official record
Conditions
COVID-19
Interventions
Tocilizumab
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 28, 2025 · Synced Oct 6, 2026, 1:05 AM EDT
Withdrawn Not applicable Interventional

Effects of Different PEEP Levels on Work of Breathing in Morbidly Obese Patients Prior to and After Extubation

NCT02492113
View directory record Official record
Conditions
Obesity
Interventions
Positive end-expiratory pressure (PEEP), ZEEP
Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 20, 2026 · Synced Oct 6, 2026, 1:05 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Prophylactic Minimally Invasive Surfactant Evaluation

NCT06007547
View directory record Official record
Conditions
Respiratory Distress Syndrome, Newborn, Premature Birth
Interventions
Poractant Alfa
Drug
Lead sponsor
Endeavor Health
Other
Eligibility
Up to 15 Minutes
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced Oct 6, 2026, 1:05 AM EDT
Recruiting Not applicable Interventional

Utilization of Lung Ultrasound Score in Decision for Minimally Invasive Surfactant Administration

NCT07442669
View directory record Official record
Conditions
Respiratory Distress Syndrome, Newborn, Respiratory Distress Syndrome in Premature Infant
Interventions
Lung ultrasound
Diagnostic Test
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
27 Weeks to 34 Weeks
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Oct 6, 2026, 1:05 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 2, 2022 · Synced Oct 6, 2026, 1:05 AM EDT
Terminated Not applicable Interventional Results available

Cerebral Oximetry in Single Lung Ventilation Thoracic Surgery

NCT01866657
View directory record Official record
Conditions
Hypoxia
Interventions
Vasoconstrictor Agents, Head/neck repositioning, Increase ETCO2, IV fluid bolus, Additional anesthesia, RBC transfusion, Increase FiO2
Drug · Other · Biological
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
65 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 5, 2022 · Synced Oct 6, 2026, 1:05 AM EDT
Completed No phase listed Observational

Validation of a Novel Oxygen Consumption Measurement Technique in Neonates

NCT03154112
View directory record Official record
Conditions
Neonatal Respiratory Failure, Congenital Heart Defect
Interventions
Measurement of oxygen consumption and caloric expenditure
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
Up to 12 Months
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 12, 2020 · Synced Oct 6, 2026, 1:05 AM EDT
Withdrawn Early Phase 1 Interventional Accepts healthy volunteers

An Alternative Way To Deliver Oxygen To People

NCT04870801
View directory record Official record
Conditions
Hypoxia
Interventions
Respirogen Micro-Oxygen
Drug
Lead sponsor
Christopher Bell
Other
Eligibility
18 Years to 40 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 30, 2022 · Synced Oct 6, 2026, 1:05 AM EDT