POPE is a multinational, multicentre, prospective, observational, non-interventional registry of patients with chronic obstructive pulmonary disease (COPD) in Central and Eastern Europe. The aim of the POPE study is to assess the distribution of patients with COPD in clinical practice within the CEE region according to disease severity, disease category, and phenotypes. The study was initiated as the pilot cooperation of COPD PLATFORM in the CEE region and 11 countries from Central and Eastern Europe have been involved in the project.