New way to measure sleep apnea danger?
NCT ID NCT04575740
First seen Jan 05, 2026 · Last updated Jun 23, 2026 · Updated 23 times
Summary
This study looked at 209 adults with moderate to severe sleep apnea to see if new ways of measuring the condition could better predict health problems. Instead of just counting breathing pauses, researchers tracked oxygen drops, heart rate changes, and sleep disruptions. Participants used a CPAP machine for 12 weeks, and the study measured changes in blood vessel health, blood pressure, and sleepiness.
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This is a summary of
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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Contacts and locations
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Locations
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Brigham and Women's Hospital
Boston, Massachusetts, 02115, United States
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Positive airway pressure (PAP) device
What this could lead to
If successful, this could lead to better ways to predict which sleep apnea patients are at highest risk for heart or brain problems.
What could go wrong
This was a small, completed study focused on measurement methods, not a treatment trial. The new metrics may not prove useful in larger, real-world settings.
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.