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Background: Chronic Obstructive Pulmonary Disease (COPD) is an inflammatory lung disease characterized by airflow limitation that is not completely reversible. The fixed-dose combination of salmeterol and fluticasone propionate (SFC) has been approved as a treatment for COPD patients with a history of recurrent exacerbations and significant symptoms despite regular bronchodilator therapy. In the present study, we evaluated the change in FEV1, mMRC dyspnea score and satisfaction in COPD patients with at least one comorbidity versus those without comorbidities treated with a fixed-dose SFC via the Elpenhaler® device for 12 months. Methods: A 12-month multicenter prospective, observational study (NCT02978703) was designed. Data were collected during the enrollment visit (V0) and six (V1) and twelve months (V2) after the initiation of treatment with Elpenhaler® SFC. The evaluation of the efficacy of the fixed-dose SFC was performed by assessing the change in lung function and dyspnea as expressed by FEV1 and the mMRC dyspnea scale score in COPD patients with and without comorbidities. Results: In total 1016 patients were enrolled, following usual daily clinical practice. A statistically significant improvement was observed in FEV1 in the total study population between visits V0, V1 and V2, with a change from the baseline at V1 0.15 ± 0.22 L and at V2 0.21 ± 0.25 L (p &lt, 0.0001 for both comparisons). This improvement was exhibited regardless of the COPD severity at the baseline, being more noticeable in GOLD 2020 groups B and C. Similarly, a significant improvement was observed in mMRC dyspnea scale values between successive visits (p &lt, 0.0001). In patients without comorbidities, there was a significant improvement in FEV1 of 0.19 ± 0.24 L at V1 and 0.28 ± 0.27 L at V2 (p &lt, 0.0001 for both comparisons), as well as in the mMRC dyspnea score (p &lt, 0.0001). In patients with at least one comorbidity, a corresponding but smaller improvement in FEV1 was observed (0.11 ± 0.34 L at V1 and 0.20 ± 0.42 L at V2, p &lt, 0.0001 for both comparisons and in the mMRC score (p &lt, 0.0001). In the multiple linear regression analysis BMI, GOLD 2020 groups, mMRC and the presence of comorbidities at the baseline were significant factors for the change of FEV1 between V0 and V2. Conclusions: COPD patients treated for twelve months with SFC via the Elpenhaler® device showed significant improvement in lung function and dyspnea at 6 and 12 months, irrespective of the presence of comorbidities.

Background: Chronic Obstructive Pulmonary Disease (COPD) is an inflammatory lung disease characterized by airflow limitation that is not completely reversible. The fixed-dose combination of salmeterol and fluticasone propionate (SFC) has been approved as a treatment for COPD patients with a history of recurrent exacerbations and significant symptoms despite regular bronchodilator therapy. In the present study, we evaluated the change in FEV1, mMRC dyspnea score and satisfaction in COPD patients with at least one comorbidity versus those without comorbidities treated with a fixed-dose SFC via the Elpenhaler® device for 12 months. Methods: A 12-month multicenter prospective, observational study (NCT02978703) was designed. Data were collected during the enrollment visit (V0) and six (V1) and twelve months (V2) after the initiation of treatment with Elpenhaler® SFC. The evaluation of the efficacy of the fixed-dose SFC was performed by assessing the change in lung function and dyspnea as expressed by FEV1 and the mMRC dyspnea scale score in COPD patients with and without comorbidities. Results: In total 1016 patients were enrolled, following usual daily clinical practice. A statistically significant improvement was observed in FEV1 in the total study population between visits V0, V1 and V2, with a change from the baseline at V1 0.15 ± 0.22 L and at V2 0.21 ± 0.25 L (p < 0.0001 for both comparisons). This improvement was exhibited regardless of the COPD severity at the baseline, being more noticeable in GOLD 2020 groups B and C. Similarly, a significant improvement was observed in mMRC dyspnea scale values between successive visits (p < 0.0001). In patients without comorbidities, there was a significant improvement in FEV1 of 0.19 ± 0.24 L at V1 and 0.28 ± 0.27 L at V2 (p < 0.0001 for both comparisons), as well as in the mMRC dyspnea score (p < 0.0001). In patients with at least one comorbidity, a corresponding but smaller improvement in FEV1 was observed (0.11 ± 0.34 L at V1 and 0.20 ± 0.42 L at V2; p < 0.0001 for both comparisons and in the mMRC score (p < 0.0001). In the multiple linear regression analysis BMI, GOLD 2020 groups, mMRC and the presence of comorbidities at the baseline were significant factors for the change of FEV1 between V0 and V2. Conclusions: COPD patients treated for twelve months with SFC via the Elpenhaler® device showed significant improvement in lung function and dyspnea at 6 and 12 months, irrespective of the presence of comorbidities.