Abstract
The aim of this study was to investigate effects of stepping down the dose of inhaled steroid (ICS) or ICS withdrawal in patients with chronic obstructive pulmonary disease (COPD) treated with an adequate bronchodilating therapy and quitting smoking. Methods. The study was performed in real clinical settings. Patients with COPD (n = 41) involved in educational smoking cessation program were followed for 9 months in outpatient settings. Smoking cessation program included varenicline, adequate physical activity, nutritional counseling and bronchodilating therapy; one of the aims of the treatment was ICS dose reduction or complete withdrawal of ICS. Results. Long-acting beta-2-agonist (LABA) indacaterol and dual bronchodilators (indacaterol/glycopyrronium or indacaterol/tiotropium) were effective in patients with COPD quitting tobacco smoking. ICS dose was reduced more quickly in patients treated with indacaterol or dual bronchodilators compared to those treated with formoterol. Quitting smoking was associated with improvement in CAT score and reduction in COPD exacerbation rate. Conclusion. Treatment with indacaterol or indacaterol/glycopyrronium combination was associated with more rapid and safe stepping down the dose of ICS or ICS withdrawal in COPD patients quitting tobacco smoking compared to those treated with formoterol.
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