Study of Patient With Frequent COPD Exacerbations

This Study is a multicenter, non-interventional, observational, ambispective (retrospective-prospective) study to evaluate clinical and demographic characteristics, approaches to therapy in outpatients with COPD and frequent exacerbations in the Russian Federation. Planned number of Study site is 35 outpatient centers with experience of treatment of COPD with frequency exacerbations in about 30 regions in Russia.

The study consists of a retrospective phase covering 52 weeks and a prospective phase of 24 weeks, involving 2000 patients across approximately 35 cites. Therefore, the aim of the study is to evaluate the clinical and demographic patients' characteristics based on retrospective part and COPD treatment patterns based on prospective part of patients with frequent exacerbations of COPD on dual therapy in the Russian Federation. The study results will be interpreted in the context of an open label, single arm study design. Due to the limited data available on the COPD population in Russia, the characterization of clinical and demographic characteristic of patients based on the retrospective component of the study will enhance the understanding of this patient group and the prospective aspect, which analyses therapeutic approaches, will help to assess physicians' adherence to current recommendations regarding therapy selection for COPD patients on dual therapy with frequent exacerbations.

Inclusion Criteria: 1. Age ≥ 18 years at the time of inclusion; 2. Signed and dated written informed consent in accordance with ICH-GCP and local law prior to inclusion in the study; 3. Patients with diagnosed moderate-to-severe COPD (see comments below); 4. ≥2 moderate or ≥1 severe COPD exacerbations in previous 52 weeks (see comments below); 5. Patients have been receiving two inhaled maintenance therapies (LABA/LAMA, ICS/LABA, ICS/LAMA) for at least 6 weeks prior to inclusion. Exclusion Criteria: 1. Current or previous treatment with triple combination (ICS/LABA/LAMA) within 52 weeks prior to inclusion; 2. COPD due to documented α-1 antitrypsin deficiency; 3. A diagnosis of bronchiectasis, sarcoidosis, interstitial lung diseases, or idiopathic pulmonary fibrosis, exacerbation of bronchial asthma or any acute or chronic disease that, as deemed by Investigator, limits the ability of patients to participate in this study or could influence the interpretation of the results; 4. The participation in any clinical study currently or within 52 weeks prior to inclusion.