BronchUK: Protocol for an observational cohort study and biobank in bronchiectasis

Bronchiectasis has been a largely overlooked disease area in respiratory medicine. This is reflected by a shortage of large-scale studies and lack of approved therapies, in turn leading to a variation of treatment across centres. BronchUK (Bronchiectasis observational cohort and biobank UK) is a multicentre, prospective, observational cohort study working collaboratively with the European Multicentre Bronchiectasis Audit and Research Collaboration (EMBARC) project. The inclusion criterion for patients entering the study is a clinical history consistent with bronchiectasis and computed tomography (CT) demonstrating bronchiectasis. Main exclusion criteria are 1) patients unable to provide informed consent, 2) bronchiectasis due to known cystic fibrosis or where bronchiectasis is not the main or codominant respiratory disease, 3) age