Ivacaftor: a novel gene-based therapeutic approach for cystic fibrosis
Michelle E Condren1, Marquita D Bradshaw
1Department of Pharmacy Clinical and Administrative Sciences-Tulsa, University of Oklahoma College of Pharmacy, Tulsa, Oklahoma ; Department of Pediatrics, University of Oklahoma School of Community Medicine, Tulsa, Oklahoma.
Abstract:
Ivacaftor is a new therapeutic agent that acts at the cystic fibrosis transmembrane conductance regulator (CFTR) channel to alter activity. It is approved for use in patients 6 years and older with cystic fibrosis who have at least 1 G551D mutation in the CFTR gene. It is unlike any other current pharmacologic agent for cystic fibrosis in that it specifically targets the gene defect associated with cystic fibrosis as opposed to treating resulting symptomology. Mucoactive agents, antibiotics, inhaled beta agonists, and other anti-inflammatory agents are currently the mainstay of cystic fibrosis treatment but can be associated with several side effects in addition to cumbersome frequency of administration. Ivacaftor's oral dosing regimen offers a more convenient treatment option. However, it is associated with significant drug-drug interactions.
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