Date	Event	Description
13 July 2016	New search has been performed	A search of the Cystic Fibrosis and Genetic Disorders Group identified 12 new references that were potentially eligible for inclusion in the review. Of these, six were additional references to an already excluded trial (Treggiari 2011); two references to one trial have been listed as 'Awaiting classification' until we can ascertain whether the participants were chronically infected with Pseudomonas aeruginosa (Xu 2012); four references to two trials have been excluded (Beringer 2012; Connett 2015).
13 July 2016	New citation required but conclusions have not changed	We have not been able to include any new trials or data at this update and therefore our conclusions remain the same.