About this trial
The investigators plan to perform a randomized controlled trial that compares bilateral lung volume reduction surgery (LVRS) with bronchoscopic lung volume reduction (BLVR) using endobronchial valves in terms of efficacy and patient safety.
Eligibility criteria
Qualifiers
Patients suffering from emphysema (all morphologies, uni- or bilateral distribution) potentially qualifying for both study procedures, LVRS or BLVR (if possible, perfusion scintigraphy within < 6 month of screening, CT scan within < 4 months of screening)
Age ≥ 30 and ≤ 80 years
Body Mass Index (BMI) ≥ 16, but ≤ 35 kg/m2
Non-smoking for 3 months prior to screening interview
Disqualifiers
FEV1 more than 50% predicted
TLC less than 100 % predicted, RV less than 175% predicted, RV/TLC less than 58% predicted, and DLCO ≤ 20% predicted in homogeneous emphysema and DLCO ≤ 15% in heterogeneous emphysema, respectively
PaO2 ≤ 6.0 kPa (45mm Hg) at ambient air (only applicable for homogeneous morphology!)
PaCO2 ≥ 6.6 kPa (50 mmHg) at ambient air (only applicable for homogeneous morphology!)
Trial design
Treatments tested in this trial
- Lung volume reduction surgery
- Bronchoscopic lung volume reduction with valves
Treatment groups
Sponsors and collaborators
Isabelle Opitz, Professor, MD
Lead sponsor
University of Zurich
Sponsor institution