Can a simple blood test predict which flu patients will need a breathing machine?

NCT ID NCT02392858

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This completed study looked at 227 adults and children in the intensive care unit with severe flu. Researchers wanted to see if a specific blood marker (soluble HLA-G5) could predict which patients would develop severe breathing failure. They also collected respiratory samples to study gene activity in severely ill patients. The goal is to find early warning signs so doctors can act faster.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to

If successful, this could help doctors identify which flu patients are at highest risk of severe breathing failure, allowing earlier and more targeted care.

What could go wrong

This is an observational study, not a treatment trial. The biomarker may not prove reliable enough for routine use, and results may not apply to all flu patients.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

influenza respiratory tract infectious disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • CHU Service de Réanimation Adulte

    Saint-Etienne, France

  • CHU Service de Réanimation Pédiatrique

    Saint-Etienne, France

  • CHU service réanimation adulte

    Clermont-Ferrand, France

  • CHU service réanimation adulte

    Dijon, France

  • CHU service réanimation adulte

    Grenoble, France

  • CHU service réanimation pédiatrique

    Clermont-Ferrand, France

  • CHU service réanimation pédiatrique

    Dijon, France

  • CHU service réanimation pédiatrique

    Grenoble, France

  • Centre Hospitalier Lyon Sud

    Pierre-Bénite, France

  • Centre de Biologie et Pathologie Est

    Lyon, France

  • Centre de Biologie et de Pathologie Nord

    Lyon, Auvergne-Rhône-Alpes, 69500, France

  • Hôpital Edouard Herriot

    Lyon, France

  • Hôpital Femme Mère Enfant

    Bron, France

  • Hôpital de la Croix Rousse-service réanimation adulte chirurgicale

    Lyon, France

  • Hôpital de la Croix Rousse-service réanimation adulte médicale

    Lyon, France