KALYDECO (ivacaftor) is a cystic fibrosis transmembrane conductance regulator (CFTR) potentiator indicated for the treatment of cystic fibrosis (CF) in patients age 2 years and older who have one of the following mutations in the CFTR gene: G551D, G1244E, G1349D, G178R, G551S, S1251N, S1255P, S549N, or S549R.
KALYDECO is indicated for the treatment of CF in patients age 2 years and older who have an R117H mutation in the CFTR gene.
If the patient’s genotype is unknown, an FDA-cleared CF mutation test should be used to detect the presence of a CFTR mutation followed by verification with bi-directional sequencing when recommended by the mutation test instructions for use.
Limitation of Use:
KALYDECO is not effective in patients with CF who are homozygous for the F508del mutation in the CFTR gene.
Click here to access full Prescribing Information for KALYDECO (ivacaftor).
References: 1. KALYDECO (ivacaftor) [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; March 2015. 2. Ramsey BW, Davies J, McElvaney NG, et al; VX08-770-102 Study Group. A CFTR potentiator in patients with cystic fibrosis and the G551D mutation. N Engl J Med. 2011;365(18):1663-1672. 3. Davies JC, Wainwright CE, Canny GJ, et al; VX08-770-103 (ENVISION) Study Group. Efficacy and safety of ivacaftor in patients aged 6 to 11 years with cystic fibrosis with a G551D mutation. Am J Respir Crit Care Med. 2013;187(11):1219-1225. 4. Zielenski J. Genotype and phenotype in cystic fibrosis. Respiration. 2000;67(2):117-133. 5. Welsh MJ, Ramsey BW, Accurso F, Cutting GR. Cystic fibrosis: membrane transport disorders. In: Valle D, Beaudet A, Vogelstein B, et al, eds. The Online Metabolic & Molecular Bases of Inherited Disease. The McGraw-Hill Companies, Inc; 2004:part 21, chap 201. http://www.ommbid.com. Accessed February 25, 2016. 6. Welsh MJ, Smith AE. Molecular mechanisms of CFTR chloride channel dysfunction in cystic fibrosis. Cell. 1993;73(7):1251-1254. 7. Orenstein DM, Spahr JE, Weiner DJ. Cystic Fribrosis: A Guide for Patient and Family. 4th ed. Philadelphia, PA: Lippincott Williams & Wilkins; 2012. 8. Yu H, Burton B, Huang C-J, et al. Ivacaftor potentiation of multiple CFTR channels with gating mutations. J Cyst Fibros. 2012;11(3):237-245.
9. US CF Foundation, Johns Hopkins University. The Hospital for Sick Children. The Clinical and Functional TRanslation of CFTR (CFTR2). http://www.cftr2.org/index.php. Accessed February 25, 2016. 10. Berwouts S, Morris MA, Girodon E, Schwarz M, Stuhrmann M, Dequeker E. Mutation nomenclature in practice: findings and recommendations from the cystic fibrosis external quality assessment scheme. Hum Mutat. 2011;32(11):1197-1203. 11. US Department of Agriculture, Agricultural Research Service, Nutrient Data Laboratory Web site. ndb.nal.usda.gov/. Accessed February 25, 2016.
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