Overview Effects of Lysozyme on Acute Exacerbation of Chronic Obstructive Pulmonary Disease : A Randomised Placebo-Controlled Study Status: Completed Trial end date: 2015-03-01 Target enrollment: Participant gender: Summary The aim of this study is to assess the effectiveness in preventing exacerbation of 52 weeks lysozyme administration in patients with COPD. Phase: Phase 4 Details Lead Sponsor: Eisai Co., Ltd.Treatments: Muramidase