Choosing the best lung area for valve placement in emphysema
Part of Lungs & breathing clinical trials.
This study compares two methods to select the best part of the lung to place small one-way valves. The valves help trapped air escape, which may make breathing easier for people with severe emphysema.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You have been diagnosed with emphysema (a type of COPD) based on scans and symptoms.
- You have not smoked for at least 4 months before the screening.
- Your body mass index (BMI) is less than 35.
- Your lung function tests show a specific level of obstruction (FEV1 between 15% and 45% of normal).
- Your residual volume (air left in lungs after breathing out) is less than 175% of normal.
- You have little or no collateral ventilation, meaning air doesn't easily move between lung areas (checked with a special test).
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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