DOI: 10.6084/m9.figshare.24681335.v2
title: Overuse of long-acting β<sub>2</sub>-agonist/inhaled corticosteroids in patients with chronic obstructive pulmonary disease: time to rethink prescribing patterns

description: Chronic obstructive pulmonary disease (COPD) is one of the leading causes of morbidity and mortality globally. In the major revision of the Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2023 report, the scientific committee concluded that the use of long-acting β<sub>2</sub>-agonist/inhaled corticosteroids (LABA/ICS) is not encouraged in patients with COPD. However, current prescribing patterns reveal significant use of LABA/ICS. In this paper, the evidence behind the current practice and the latest treatment recommendations is reviewed. We compare the efficacy and safety of combination therapy with long-acting muscarinic antagonist (LAMA) and LABA vs LABA/ICS and note that LAMA/LABA combinations have reduced the annual rate of moderate/severe exacerbations, delayed the time to first exacerbation, and increased post-dose FEV<sub>1</sub> vs ICS-based regimens. The GOLD 2023 report recommends treatment with LABA and LAMA combination (preferably as a single inhaler) in patients with persistent dyspnea, with initiation of ICS in patients based on the symptoms (dyspnea and exercise intolerance as indicated by modified Medical Research Council [mMRC] score ≥ 2 and COPD Assessment Test [CAT™] &gt; 20), blood eosinophil count (≥ 300 cells/µL), and exacerbation history (history of hospitalizations for exacerbations of COPD and ≥ 2 moderate exacerbations per year despite appropriate long-acting bronchodilator maintenance therapy). We describe practical recommendations for primary care physicians to optimize therapy for their patients and prevent overuse of ICS-based regimens. We advocate adherence to current recommendations and a greater focus on effective treatments to successfully control symptoms, minimize exacerbation risk, preserve lung function, maximize patient outcomes, and reduce the burden of drug-related adverse events. Chronic obstructive pulmonary disease (COPD) is a common disease of the lungs associated with continued respiratory symptoms and airflow limitation. COPD causes symptoms such as breathlessness, cough, and production of phlegm, and, if not properly managed, these symptoms may get worse and result in flare-ups, also termed exacerbations. COPD management includes controlling symptoms while reducing the risk of exacerbations. COPD treatments include bronchodilators and inhaled corticosteroids (ICS). Bronchodilators help by widening the airways, making it easier to breathe. The two types of bronchodilators are long-acting muscarinic antagonists (LAMAs; these drugs prevent closing of the airways) and long-acting β<sub>2</sub>-agonists (LABAs; these drugs relax the muscles around the airways to help keep the airways open for a longer time). ICS may reduce swelling in the airways in some patients with COPD. However, the use of ICS-based regimens as the first treatment choice has been linked to health risks and is not in keeping with the recent national and international recommendations. In this narrative review, we examine why the use of ICS-based regimens is still growing and explore, based on available evidence, and why this treatment course may not be optimal for most patients with COPD. We discuss how the treatment for COPD has changed over time, and our findings support the use of LAMA and LABA as the first course of therapy in many patients with COPD. We conclude that greater adherence to the treatment guidelines can help to improve treatment outcomes for many patients with COPD.