Plain-English translation of NCT05501587 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
This is a registry study that collects information about how well children's lungs work, specifically focusing on the smallest airways in the lungs. Researchers are gathering data from three groups: healthy children, children with cystic fibrosis, and children with other lung diseases. The goal is to create a reference library of normal lung function measurements and to test whether a new breathing measurement tool called multiple breath washout (MBW) can be reliably used in everyday clinical care.
Right now, doctors don't have a clear understanding of what 'normal' lung function looks like across different ages in children, and there's limited evidence about whether the new MBW breathing test is reliable enough to use in regular clinical practice. This registry aims to fill that gap by collecting consistent measurement data that will help doctors better understand and diagnose lung disease in children.
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You would visit the research center once to complete lung function tests during a clinically scheduled appointment. The main test involved is a breathing measurement called the multiple breath washout test, which measures how well air moves through your smallest airways—this is done along with standard lung function tests your doctor may already order. The visit is timed to coincide with care you're already receiving, so there's no extra trip needed.
AI-generated summary from trial data · Jun 5, 2026 · Not medical advice
Canada
Sponsor
University of British Columbia
Enrollment target
~1,000 participants
Started
October 2018
Primary completion
May 2028
Age range
0 Years – 99 Years
Last updated on clinicaltrials.gov in August 2022.
Reach out to the team running this trial. Response times vary — some teams are faster than others.
Central contact
Rodrigo Sandoval, MSc
University of British Columbia
Tell us you're interested and we'll help connect you with the research team. We'll walk you through what to expect first — no email needed to get started.