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  • Title: Factors Associated with Reduction of Sedentary Time Following Tiotropium/Olodaterol Therapy in Treatment-Naïve Chronic Obstructive Pulmonary Disease.
    Author: Takahashi K, Tashiro H, Tajiri R, Takamori A, Uchida M, Kato G, Kurihara Y, Sadamatsu H, Kinoshita T, Yoshida M, Kawaguchi A, Kimura S, Sueoka-Aragane N, Kawayama T, Saga-naïve COPD Physical Activity Evaluation (SCOPE) Study Investigator Group.
    Journal: Int J Chron Obstruct Pulmon Dis; 2021; 16():3297-3307. PubMed ID: 34908832.
    Abstract:
    BACKGROUND: Prolonged sedentary behavior is associated with worse prognosis in patients with chronic obstructive pulmonary disease (COPD). Our previous study found that first-line dual therapy with tiotropium/olodaterol significantly reduces sedentary time compared to tiotropium monotherapy in Japanese patients with treatment-naïve COPD, although the characteristics of responders to dual-therapy versus monotherapy for COPD are still unclear. METHODS: Patients with treatment-naïve COPD were randomized to receive either tiotropium or tiotropium/olodaterol treatment for 12 weeks. Physical activity was assessed using a triaxle accelerometer for 2 weeks before and after treatment. This analysis focused on the change in sedentary time, indicated by physical activity of 1.0-1.5 metabolic equivalents (METs), with stratification for the following factors: age, body mass index (BMI), pulmonary function, COPD assessment test (CAT), the 6-minute walk distance (6MWD), and physical activity level at study entry. RESULTS: Thirty-five patients received tiotropium/olodaterol and 34 patients received tiotropium. In patients with lower inspiratory capacity at study entry, a significant reduction in sedentary time was observed in the tiotropium/olodaterol group compared with the tiotropium group (Tio: -12.8 ± 13.5 min, Tio/Olo: -65.1 ± 21.0 min, mean difference, -52.2 min, 95% CI -103.6 to 0.88, p = 0.046). In patients with a shorter duration of physical activity of ≥2 METs at study entry, a significant reduction of sedentary time was observed in the tiotropium/olodaterol group compared with the tiotropium group (Tio: -3.3 ± 17.5 min, Tio/Olo: -72.9 ± 23.1 min, mean difference, -69.7 min, 95% CI -128.7 to -10.6, p = 0.02). There were no differences in terms of age, BMI, CAT score, 6MWD, FEV1, FVC, VC, and physical activity of 1.0-1.5 METs and ≥3.0 METs. CONCLUSION: This study showed that COPD patients with lower inspiratory capacity or shorter active time of ≥2.0 METs at study entry are likely to exhibit significantly greater reduction in sedentary time with tiotropium/olodaterol treatment.
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