MUSIC: Airway Microbiome in Severe COPD Patients on Inhaled Corticosteroids

Phase 4, randomised, open-label trial of fluticasone propionate and budesonide in chronic obstructive pulmonary disease (COPD) (4 arms), sponsored by University of Dundee. Primary endpoint: Change in bacterial load of total respiratory pathogens determined by quantitative polymerase chain reaction at 3 months. Started Dec 2016; status: completed.