Oxygen boost for unborn babies with heart disease shows promise
NCT ID NCT03944837
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether giving extra oxygen to pregnant mothers carrying babies with congenital heart disease (CHD) could increase oxygen levels in the fetal brain. Researchers used ultrasound and MRI to measure changes in 53 fetuses with different types of CHD. The goal was to see if this approach might one day be used as a treatment to support brain growth before birth.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
oxygen gas
What this could lead to
If successful, this could point toward a prenatal oxygen therapy to improve brain development in babies with congenital heart disease.
What could go wrong
This is a small, early-phase study (53 participants) that only measures short-term effects. It does not test long-term outcomes or safety of chronic oxygen use.
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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The Hospital for Sick Children
Toronto, Ontario, M5G1X8, Canada