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Inducible Laryngeal Obstruction in Severe Asthma in Severe Asthma

NCT04593394 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 116

Last updated 2025-11-21

No results posted yet for this study

Summary

The first part will be a comparative cross-sectional study to identify the frequency of ILO and other comorbidites among participants with asthma compared to a group of reference subjects without asthma, matched for age- and gender and race.

The second part will be a longitudinally observational study study following participants for one year after the cross-sectional study. The Maat-scores ILO-symptoms and asthma-outcomes longitudinally will be evaluated, .

Conditions

  • Asthma Chronic
  • Vocal Cord Dysfunction

Interventions

DIAGNOSTIC_TEST

Continous laryngoscopy exercise test

Participants walks on a tredmill with a a flexible naso-laryngoscope in the larynx allowing visulasion of the larynx and obstructions in the larynx at the epiglottic og glottic levels are scored

DIAGNOSTIC_TEST

Overnight respiratory polygraphy

Overnight respiratory polygraphy is a continuous recording of nasal airflow, thoracic and abdominal movements, heart rate and oxygen saturation during the night used to detected sleep apnoea

Sponsors & Collaborators

  • Haukeland University Hospital

    lead OTHER

Principal Investigators

  • Sverre Lehmann, PhD · Haukeland University Hospital

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-11-01
Primary Completion
2024-10-01
Completion
2024-10-01

Countries

  • Norway

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04593394 on ClinicalTrials.gov