Abstract
BackgroundThe beneficial effects of application of a fixed dose beclomethasone dipropionate (BDP) and formoterol fumarate (F) for the treatment of severe chronic obstructive disease (COPD) has been amply proven in well controlled clinical trials. Whether this also holds for real-world conditions and in such a heterogeneous patient population as is encountered in Bulgaria remained to be investigated. MethodsIn an observational, non-interventional study, 441 Bulgarian patients with severe COPD who were enrolled at 36 sites across the country received extrafine BDP/FF-combination therapy using the NEXThaler® DPI or the Foster® pMDI over a period of 16 weeks. At visits at the beginning, after 4 weeks and at the end of the study, alterations in lung function parameters FEV1 and FVC, disease symptoms, changes in CAT score, and patient distribution in GOLD 2017 categories A through D were assessed. ResultsA large share of the Bulgarian patients with severe COPD suffered from serious comorbidities, received additional medication, and about 2/3 were former or current smokers. Extrafine BDP/FF caused an increase in mean FEV1, FVC, a decrease of health impact as assessed by the CAT score, and a considerable shift of the share of category C and D patients towards A and B. In addition, the percentage of patients that were free of symptoms impacting everyday life such as fatigue and shortness of breath at rest increased throughout the study. A comparison of both application devices indicated that the NEXThaler® was superior in terms of lung functional aspects, as these parameters displayed a constant improvement over the observation period, whereas they plateaued at week 4 when using the pMDI. ConclusionsThe therapeutic benefits of extrafine BDP/FF known from clinical trials could also be observed in a real-world setting, even in such a heterogenous patient population as the Bulgarian. The NEXThaler® appeared to be highly efficient in this setting, opening a new choice for the lung specialist and the patient to select the one device considered most suitable and practical.
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