• Eur Respir Rev · Mar 2013

    Review

    Ivacaftor treatment in patients with cystic fibrosis and the G551D-CFTR mutation.

    • Isabelle Sermet-Gaudelus.
    • Centre de Ressources et de Compétences pour la Mucoviscidose, Hopital Necker-Enfants-Malades, INSERM U845, Université René Descartes, Paris, France. isabelle.sermet@nck.aphp.fr
    • Eur Respir Rev. 2013 Mar 1;22(127):66-71.

    AbstractCystic fibrosis (CF) is an autosomal recessive lethal disease caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene that encodes for CFTR, an epithelial cell-surface expressed protein responsible for the transport of chloride (Cl(-)). Gating mutations associated with defective conductance can be modulated by CFTR potentiators. Ivacaftor is a CFTR potentiator approved for the treatment of CF patients >6 yrs of age with at least one copy of the G551D-CFTR mutation. Herein, the clinical trial development programme for ivacaftor will be reviewed, including two pivotal studies in adolescents/adults and in children. These studies report sustained improvements in lung function and sweat chloride concentrations, and a reduction in pulmonary exacerbations over a 48-week treatment period. In the era of personalised medicine, ivacaftor offers an effective and well-tolerated treatment for the clinical management of CF patients with the G551D mutation. A long-term, open-label study will report the effects of ivacaftor over a further 48 weeks.

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