Which oxygen method saves more lives? large trial tests standard vs High-Flow
NCT ID NCT04468126
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether giving high-flow heated oxygen through nasal prongs helps more people survive severe breathing failure than standard oxygen masks. Over 1,500 adults with low blood oxygen levels were randomly assigned to one of the two oxygen methods. The main goal was to see who was alive 28 days later.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- oxygen therapy (standard low-flow oxygen vs high-flow nasal cannula oxygen)
- What this could lead to
- If high-flow oxygen proves better, it could become the standard first-line oxygen therapy for acute respiratory failure, potentially reducing deaths.
- What could go wrong
- This trial is completed but results are not yet widely implemented; earlier studies showed mixed results, especially in immunocompromised patients, so the benefit may not be universal.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
CHu Poitiers
Poitiers, 86000, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can High-Flow oxygen through a tracheostomy speed ventilator weaning?
- Depth camera could guide oxygen therapy and prevent intubation in respiratory failure
- Which oxygen strategy saves more lives? large trial puts three methods to the test
- Ultrasound may reveal hidden causes of ventilator weaning failure