Hidden breathing blockage found in severe asthma patients

NCT ID NCT04593394

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at how often people with severe asthma also have inducible laryngeal obstruction (ILO), a condition where the voice box closes during exercise, making breathing harder. Researchers tested 116 participants using a special scope while they walked on a treadmill and tracked their symptoms for a year. The goal was to understand how common ILO is and how it changes over time, not to test a new treatment.

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 help doctors better diagnose and manage breathing problems in people with severe asthma.
What could go wrong
This is an observational study, not a treatment trial, so it won't directly improve health. Results may not apply to all asthma patients.

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.

As listed by the trial registrant

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

Contacts and locations

Locations

  • Haukeland University Hospital

    Bergen, 5021, Norway

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