RT Journal Article SR Electronic T1 Twelve-month positive outcomes of Zephyr endobronchial valves in severe emphysema patients: LIBERATE trial JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP OA4932 DO 10.1183/13993003.congress-2018.OA4932 VO 52 IS suppl 62 A1 Dirk-Jan Slebos A1 Shawn Wright A1 Richard Sue A1 Mark Dransfield A1 Hiram Rivas-Perez A1 Tanya Wiese A1 Frank Sciurba A1 Pallav Shah A1 Momen Wahidi A1 Hugo De Oliviera A1 Brian Morrissey A1 Paulo Cardoso A1 Steven Hays A1 Adnan Majid A1 Nicholas Pastis A1 Lisa Kopas A1 Mark Vollenweider A1 Paul M. Mcfadden A1 Michael Machuzak A1 David Hsia A1 Arthur Sung A1 Nabil Jarad A1 Malgorzata Kornaszewska A1 Stephen Hazelrigg A1 Ganesh Krishna A1 Nick Ten Hacken A1 Narinder Shargill A1 Gerard Criner YR 2018 UL http://erj.ersjournals.com/content/52/suppl_62/OA4932.abstract AB Introduction: Zephyr® Endobronchial Valve (EBV®) treatment in severe emphysema patients, improves lung function, exercise capacity and quality of life.Objective: Evaluate effectiveness and safety of EBV treatment in severe emphysema.Methods: 190 severe heterogeneous emphysema subjects (M47%/F53%) with hyperinflation (FEV1 27.4 %pred; RV 224.5 %pred) and absent collateral ventilation (Chartis®) were randomized 2:1 (EBV:Standard-of-Care (SoC). Responders were classified according to established Minimal Clinically Important Differences for outcome measures.Results: At 12-months 84.2% EBV subjects had a target lobe volume reduction ≥350mL. Between group differences (ΔEBV–SoC) for mean changes from baseline were significant (p<0.05) at 12 months: ΔFEV1= +0.106L (17.6%); ΔSGRQ= -7.1 points; ΔBODE Index= -1.2 points; and Δ6MWD= +39.3m. Responder rates significantly favored EBV over SoC for all measures (Figure).Major serious adverse events in the EBV group <45 days post-procedure were pneumothorax (EBV 26.6% vs SoC 0%), COPD exacerbations (7.8% vs 4.8%), and death (3.1% vs 0%). Between 45-days out to 12-months, these were COPD exacerbations (23.0% vs 30.6%) and death (0.8% vs 1.6%).Conclusions: Zephyr EBV treatment provides durable, clinically meaningful improvements in lung function, exercise capacity, dyspnea and quality of life in hyperinflated, severe emphysema patients with absent collateral ventilation.FootnotesCite this article as: European Respiratory Journal 2018 52: Suppl. 62, OA4932.This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).