Real-life effectiveness of fluticasone furoate/vilanterol after switching from fluticasone/salmeterol or budesonide/formoterol therapy in patients with symptomatic asthma: Relvar Ellipta for Real Asthma Control Study (RERACS study)

The goals of asthma management are to achieve good control of symptoms and maintain normal activity. In spite of effective therapies being available, international surveys show that asthma control is suboptimal in many countries (1). Although the situation varies between countries, it is problematic that from 50% to 90% of asthma patients show poor control of their disease (2-5). There are various reasons for poor control of asthma. Common causes related to medication are poor adherence, poor inhaler technique, and inadequate dosing. If possible, potential risk factors should be eliminated and comorbidities managed (1,6,7)