Heart attack oxygen boost trial halted early
NCT ID NCT04743245
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether giving extra oxygen directly to the heart for 60 minutes after angioplasty could improve outcomes for people having a major heart attack. Only 17 patients were enrolled before the study was stopped early. The goal was to see if this oxygen therapy could reduce heart damage and complications like death, repeat heart attacks, or heart failure.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
hyperoxemic supersaturated oxygen (SSO2) therapy
What this could lead to
If successful, this could reduce heart damage and complications after a major heart attack.
What could go wrong
The trial was terminated early with very few participants, so results are limited. The added oxygen therapy may not improve outcomes and could increase bleeding risk.
Disclaimer
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the original study
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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.
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.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Baystate Medical Center
Springfield, Massachusetts, 01199, United States