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Showing 1–24 of 166 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Fraction of Inspired Oxygen Clear all
Completed No phase listed Observational Accepts healthy volunteers

Prospective Observation of Exercise Parameters in Advanced Heart Failure

NCT01210573
View directory record Official record
Conditions
Advanced Heart Failure
Interventions
adjustment of LVAD or pacemaker
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 17, 2014 · Synced Sep 23, 2026, 5:04 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 23, 2026, 5:04 AM EDT
Recruiting Not applicable Interventional

Normobaric Oxygen Therapy for Individuals With First-Episode Psychosis

NCT04368039
View directory record Official record
Conditions
Psychosis, Schizophrenia, First-episode Psychosis
Interventions
Normobaric Oxygen, Placebo
Device
Lead sponsor
Nicholas Breitborde
Other
Eligibility
15 Years to 35 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Sep 23, 2026, 5:04 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Withdrawn Not applicable Interventional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 14, 2024 · Synced Sep 23, 2026, 5:04 AM EDT
Withdrawn Phase 4 Interventional

The Effect of Decreasing the Inspired Oxygen Concentration on Post-Operative Oxygenation After Primary Lobectomy

NCT02509182
View directory record Official record
Conditions
Hyperoxia
Interventions
60% oxygen, 100% oxygen
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 11, 2018 · Synced Sep 23, 2026, 5:04 AM EDT
Completed Not applicable Interventional Results available

Inhaled Nitric Oxide (iNO) as an Adjunct to Neonatal Resuscitation

NCT01220687
View directory record Official record
Conditions
Respiratory Distress Syndrome in Premature Infants, Very Low Birth Weight Baby
Interventions
iNO, Nitrogen
Drug · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
1 Minute to 2 Minutes
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
2
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 18, 2020 · Synced Sep 23, 2026, 5:04 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 23, 2026, 5:04 AM EDT
Completed No phase listed Observational

CTTI Risk Factors for HABP/VABP Study

NCT02689531
View directory record Official record
Conditions
Pneumonia, Ventilator-Associated, Pneumonia, Bacterial, Pneumonia, Hospital-Acquired
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
7,530 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
15
States / cities
Birmingham, Alabama • Los Angeles, California • Chicago, Illinois + 12 more
Source: ClinicalTrials.gov public record
Updated Jun 14, 2023 · Synced Sep 23, 2026, 5:04 AM EDT
Active, not recruiting Not applicable Interventional

A Multi-Center Clinical Trial in Individuals With Spinal Cord Injury

NCT03644277
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Acute Intermitted Hypoxia, Massed Practise, Rapael Glove
Other · Procedure
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 75 Years
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
3
States / cities
Chicago, Illinois • East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced Sep 23, 2026, 5:04 AM EDT
Completed Not applicable Interventional

Apneic Oxygenation in the Pediatric Intensive Care Unit

NCT03374046
View directory record Official record
Conditions
Intubation Complication
Interventions
Apneic Oxygenation
Procedure
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
0 Days to 17 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Park Ridge, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 3, 2024 · Synced Sep 23, 2026, 5:04 AM EDT
Recruiting Not applicable Interventional

Low Oxygen Therapy to Enhance Walking Recovery After SCI.

NCT06521723
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Daily acute intermittent hypoxia, Walking + tSTIM
Other · Device
Lead sponsor
Spaulding Rehabilitation Hospital
Other
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
2
States / cities
Jacksonville, Florida • Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 23, 2026, 5:04 AM EDT
Recruiting Not applicable Interventional

Volume Support/Assist Control Mode Ventilation and Diaphragmatic Atrophy

NCT03901924
View directory record Official record
Conditions
Mechanical Ventilation Complication
Interventions
Volume Support Mode Mechanical Ventilation, Assist Control Mode Mechanical Ventilation
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
468 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
2
States / cities
Chicago, Illinois • Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Sep 23, 2026, 5:04 AM EDT
Terminated Not applicable Interventional

Recovery After Dialysis-Requiring Acute Kidney Injury

NCT03305549
View directory record Official record
Conditions
Acute Kidney Injury
Interventions
Conservative dialysis strategy, TIW dialysis strategy
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 100 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 18, 2025 · Synced Sep 23, 2026, 5:04 AM EDT
Completed Not applicable Interventional

Trial of a Limited Versus Traditional Oxygen Strategy During Resuscitation in Premature Newborns

NCT01697904
View directory record Official record
Conditions
Prematurity, Oxidative Stress
Interventions
Titration of oxygen during newborn resuscitation in delivery room
Procedure
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
Not listed
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 1, 2012 · Synced Sep 23, 2026, 5:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Metabolic Changes in the Activated Human Visual Cortex During Mild Hypoxia

NCT02482571
View directory record Official record
Conditions
Brain Hypoxia
Interventions
Mild Hypoxia
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 18, 2019 · Synced Sep 23, 2026, 5:04 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 23, 2026, 5:04 AM EDT
Not listed Not applicable Interventional

ROX Index for the Timing of Intubation in Nasal High Flow

NCT04707729
View directory record Official record
Conditions
Acute Hypoxemic Respiratory Failure
Interventions
ROX index algorithm
Diagnostic Test
Lead sponsor
Hospital Universitari Vall d'Hebron Research Institute
Other
Eligibility
18 Years to 120 Years
Enrollment
630 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 14, 2024 · Synced Sep 23, 2026, 5:04 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 23, 2026, 5:04 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 23, 2026, 5:04 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Risk of Oxygen During Cardiac Surgery Trial

NCT02361944
View directory record Official record
Conditions
Cardiac Surgery
Interventions
Oxygen - normoxia, Oxygen - hyperoxia
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 31, 2024 · Synced Sep 23, 2026, 5:04 AM EDT
Completed Not applicable Interventional Results available

A Comparison of Methods of Discontinuing Nasal CPAP in Premature Infants <30 Weeks Gestation

NCT03292562
View directory record Official record
Conditions
Apnea of Prematurity, Respiratory Distress Syndrome
Interventions
Discontinue NCPAP after weaning pressures, Discontinue NCPAP without weaning pressures
Device
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
Not listed
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 16, 2020 · Synced Sep 23, 2026, 5:04 AM EDT
Completed Not applicable Interventional

CPAP Or Nasal Cannula Oxygen for Preterm Infants: A Randomized Controlled Trial

NCT04792099
View directory record Official record
Conditions
Infant, Newborn, Disease, Hypoxia, Respiratory Distress Syndrome, Bronchopulmonary Dysplasia
Interventions
Continuous positive airway pressure, Nasal Cannula
Procedure
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
Not listed
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jan 25, 2024 · Synced Sep 23, 2026, 5:04 AM EDT
Recruiting Phase 2 Interventional

Hyperbaric Oxygen Brain Injury Treatment Trial

NCT02407028
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Hyperbaric oxygen (1.5 ATA, no NBH), Hyperbaric oxygen (2.0 ATA, no NBH), Hyperbaric oxygen (2.5 ATA, no NBH), Hyperbaric oxygen (1.5 ATA + NBH), Hyperbaric oxygen (2.0 ATA + NBH), Hyperbaric oxygen (2.5 ATA + NBH), Normobaric Hyperoxia (NBH), Usual Care
Drug · Other
Lead sponsor
Gaylan Rockswold
Other
Eligibility
16 Years to 65 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2029
U.S. locations
10
States / cities
San Diego, California • West Palm Beach, Florida • Iowa City, Iowa + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Sep 23, 2026, 5:04 AM EDT
Completed Not applicable Interventional

Impact of High Versus Lower Oxygen Fraction Prior to Extubation on Postoperative Pulmonary Atelectasis Measured With EIT

NCT06538740
View directory record Official record
Conditions
Atelectasis
Interventions
Ventilating the patient with lower (40 or 70%) oxygen concentration during the wash out phase, before extubation
Procedure
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 24, 2025 · Synced Sep 23, 2026, 5:04 AM EDT