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Less oxygen may save more lives after cardiac arrest, study hints

NCT ID NCT03138005

Terminated Disease control Sponsor: Monash University Source: ClinicalTrials.gov ↗

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

Summary

This study looked at whether giving less oxygen (aiming for 90-94% oxygen in the blood) right after a cardiac arrest outside the hospital helps more people survive to leave the hospital. It included 428 unconscious adults who had been revived and were on a breathing tube. The trial was stopped early, but results may guide future oxygen use in emergency care.

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Conditions

The condition(s) this trial relates to.

cardiac arrest Out-of-Hospital Cardiac Arrest

As listed by the trial registrant

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

OUT-OF-HOSPITAL CARDIAC ARREST

Contacts and locations

Locations

  • Alfred Hospital

    Melbourne, Victoria, 3004, Australia

  • Ambulance Victoria

    Melbourne, Victoria, 3130, Australia

  • Austin Hospital

    Melbourne, Victoria, 3084, Australia

  • Barwon Health: Geelong

    Melbourne, Victoria, 3220, Australia

  • Box Hill Hospital

    Melbourne, Victoria, 3128, Australia

  • Eastern Health: Maroondah Hospital

    Melbourne, Victoria, 3135, Australia

  • Fiona Stanley Hospital

    Perth, Western Australia, 6150, Australia

  • Lyell McEwin Hospital

    Adelaide, South Australia, 5112, Australia

  • Monash Medical Centre

    Melbourne, Victoria, 3168, Australia

  • Northern Health: The Northern Hospital

    Melbourne, Victoria, 3076, Australia

  • Peninusla Health: Frankston Hospital

    Melbourne, Victoria, 3199, Australia

  • Royal Adelaide Hospital

    Adelaide, South Australia, 5000, Australia

  • Royal Perth Hospital

    Perth, Western Australia, 6000, Australia

  • SA Ambulance Service

    Adelaide, South Australia, 5063, Australia

  • Sir Charles Gairdner Hospital

    Perth, Western Australia, 6009, Australia

  • St John Ambulance Western Australia

    Perth, Western Australia, 6984, Australia

  • St Vincents Hospital

    Melbourne, Victoria, 3065, Australia

  • The Queen Elizabeth Hospital

    Adelaide, South Australia, 5011, Australia

  • The Royal Melbourne Hospital

    Melbourne, Victoria, 3050, Australia

  • Western Health: Footscray Hospital

    Melbourne, Victoria, 3011, Australia

  • Western Health: Sunshine Hospital

    Melbourne, Victoria, 3021, Australia

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