Breath test may predict sleep apnea severity without needles

NCT ID NCT07606898

Ongoing Knowledge-focused Sponsor: Tanta University Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is testing whether a simple breath test, called fractional exhaled nitric oxide (FeNO), can help measure the severity of obstructive sleep apnea (OSA). Researchers will compare FeNO levels in 200 adults with different levels of sleep apnea to see if the test can predict moderate to severe cases. If it works, this could give doctors a non-invasive way to assess airway inflammation and improve how sleep apnea is managed.

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 lead to a simple, non-invasive breath test to help diagnose and manage obstructive sleep apnea severity.
What could go wrong: This is an observational study, not a treatment trial. The breath test may not reliably predict sleep apnea severity, and results may not apply to smokers or people with other lung conditions.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

obstructive sleep apnea syndrome

As listed by the trial registrant

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

OBSTRUCTIVE SLEEP APNEA (OSA)

Contacts and locations

Locations

Tanta University

Tanta, Egypt

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