Disease-modifying drug therapy in cystic fibrosis.

Whilst substantial progress has been made in the treatment of cystic fibrosis, the disease still carries a significant burden in terms of symptoms, requirement for treatment and early mortality. The last decade has witnessed a new era in the development of small molecule drugs targeting the CFTR protein, which for the first time may provide a truly disease-modifying approach to treatment. This article reviews progress and highlights some of the current and future challenges in CFTR modulator therapies.