The relative change in LCI2.5 between day 0 and day 14 (relative change = [LCI2.5 at day 14-LCI2.5 at day 0]/LCI2.5 at day 0).|Time to next pulmonary exacerbation|Relative change in percent predicted FEV1 between day 0 and day 14|Absolute change in FEV1 (mL) between day 0 and day 14|Relative change in LCI5 between day 0 and day 14.|Absolute change in LCI2.5 and LCI5 between day 0 and day 14|Absolute change in the CFQ-R(R) between day 0 and day 14.|MSSA airway culture positivity at day 14|Time until next growth of MSSA on clinical microbiology samples|Number of new CF respiratory pathogens (P. aeruginosa etc) from clinical respiratory samples