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Clinical and Functional Effects of Inhaled Dual Therapy Umeclidinium/Vilanterol in Patients with Chronic Obstructive Pulmonary Disease: A Real-Life Study

Abstract

Background: The pharmacological association umeclidinium/vilanterol (UMEC/VI) allows to implement a very effective dual bronchodilation in chronic obstructive pulmonary disease (COPD), thus optimizing bronchodilating therapy.

Methods: The main purpose of our real-world observational study was to evaluate in COPD patients the effects of UMEC/VI on lung function and respiratory symptoms. Functional and clinical parameters were assessed at baseline, and after 52 weeks of treatment with this combined double inhaled therapy.

Results: We enrolled 110 subjects suffering from COPD. A 12-month UMEC/VI treatment induced significant improvements in total lung capacity (TLC) (p < 0.05), and residual volume (RV) (p < 0.0001). Pulmonary deflation was paralleled by significant increases of forced expiratory volume in one second (FEV) (p < 0.0001), forced vital capacity (FVC) (p < 0.01), forced expiratory flow between 25% and 75% of FVC (FEF) (p < 0.0001) and diffusion capacity of the lung (DLCOcSB) (p < 0.05). In addition, in the same period, we also observed significant reductions of airway resistance including total resistance (R) (p < 0.0001) and specific effective resistance (sR) (p < 0.0001). Other improvements were detected with regard to modified British Medical Research Council (mMRC) questionnaire score (p < 0.0001), COPD Assessment Test (CAT) score (p < 0.0001), and COPD exacerbation rate (p < 0.0001). In particular, the reported changes of mMRC/CAT scores and COPD exacerbation numbers were significantly correlated with UMEC/VI-induced modifications of TLC, RV, FVC and FEV.

Conclusion: In conclusion, our study corroborates in a real-life context the effectiveness of UMEC/VI in COPD treatment. Indeed, our broad investigational strategy has allowed to better characterize the functional mechanisms underpinning the therapeutic properties of UMEC/VI association.

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PMID: 38037018 PMC: 10691002. DOI: 10.1186/s12890-023-02780-2.

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