The effect of dual bronchodilatory therapy on the clinical control of chronic obstructive pulmonary disease in real clinical practice

Abstract

Today, achieving clinical control in patients with chronic obstructive pulmonary disease (COPD) remains relevant. Thus, the results of a large multicenter study of clinical efficacy of dual bronchodilatory therapy in real practice conducted in Eastern Europe, including the Russian Federation, are of great interest.Aim. Assessment of changes in the clinical control in patients with COPD receiving treatment with LABA/LAMA combination (tiotropium/olodaterol 5/5 μg via the Respimat® inhaler) in real clinical practice.Methods. The study included patients (n = 1 476) with COPD older than 40 years who were prescribed tiotropium/olodaterol 5/5 μg via the Respimat® inhaler according to the current Russian and foreign clinical guidelines. The observation period was 6 weeks. The clinical control of COPD was assessed by the CCQ questionnaire, the patient’s general condition, the severity of dyspnea according to the mMRC scale, the incidence of using short-acting bronchodilators to relieve symptoms. The criterion for therapeutic success was a 0.4 point decrease in the CCQ score, the minimal clinically important differenceResults. The treatment with tiotropium/olodaterol 5/5 μg was successful, i.e., led to a decrease in the number of CCQ points by more than 0.4 points, in 89.84% of patients (95% CI 88.2 – 91.3 %; p < 0.0001). On average, the overall CCQ score between the first and second visit decreased by 1.31 ± 0.97 points, the severity of symptoms – by 1.39 ± 1.03 points, the functional state – by 1.2 ± 1.1 points, the mental condition – by 1.38 ± 1.31 CCQ points. Achievement of clinical control did not depend on comorbid pathology, disease severity, patient age, and the previous therapy.Conclusion. The results obtained on a wide sample of patients from real practice confirmed the high clinical efficacy of tiotropium/olodaterol 5/5 μg in achieving clinical control of COPD.