KALYDECO® (ivacaftor) is now indicated to treat people age 6 months and older with one of 38 CFTR mutations1
KALYDECO is a cystic fibrosis transmembrane conductance regulator (CFTR) potentiator indicated for the treatment of cystic fibrosis (CF) in patients age 6 months and older who have one mutation in the CFTR gene that is responsive to ivacaftor potentiation based on clinical and/or in vitro assay data.
Patient eligibility mutation chart
for KALYDECO

About KALYDECO® (ivacaftor)

Overview of Studies and Data

Age 6 Months to Less Than 6 Years

Age 6 Years and Older

Age 12 Years and Older

In Vitro Results

Safety Profile

Dosing

Administration

Drug Interactions

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Indications and Usage

KALYDECO® (ivacaftor) is a cystic fibrosis transmembrane conductance regulator (CFTR) potentiator indicated for the treatment of cystic fibrosis (CF) in patients age 6 months and older who have one mutation in the CFTR gene that is responsive to ivacaftor potentiation based on clinical and/or in vitro assay data.

Dosing for KALYDECO® (ivacaftor)1
Pills iconPatients should continue taking all of their prescribed CF therapies with KALYDECO1
  • A safe and efficacious dose of KALYDECO for pediatric patients less than 6 months of age has not been established. The use of KALYDECO (oral granules) in children under the age of 6 months is not recommended1
Dosage Adjustments1
kalydeco dosage adjustments1
dose and
administration frequency

HEPATIC IMPAIRMENT

Severe impairment (Child-Pugh Class C)b

Moderate impairment (Child-Pugh Class B)

Mild impairment (Child-Pugh Class A)

One dose once daily, or lessc

One dose once dailyc

No dose adjustment required

CYP3A

Co-administration with strong CYP3A inhibitorsd

Co-administration with moderate CYP3A inhibitorse

One dose twice a weekc

One dose once dailyc

bUse with caution after weighing the risks and benefits of treatment.1

cOne dose=one tablet or one packet of oral granules.1

dUse of KALYDECO with a strong CYP3A inhibitor significantly increased ivacaftor exposure. Examples include ketoconazole, itraconazole, posaconazole, voriconazole, telithromycin, and clarithromycin.1

eUse of KALYDECO with a moderate CYP3A inhibitor increased ivacaftor exposure. Examples include fluconazole and erythromycin.1

Use of KALYDECO with strong CYP3A inducers significantly decreases the exposure of ivacaftor. Co-administration of KALYDECO with strong CYP3A inducers, such as rifampin, rifabutin, phenobarbital, carbamazepine, phenytoin, and St. John’s wort is not recommended.1


Missed dose of oral granules or tablets1

  • If ≤6 hours have passed: Advise patient to take the dose with fat-containing food
  • If >6 hours have passed: Advise patient to skip that dose, and resume the normal schedule for the following dose. A double dose should not be taken to make up for the forgotten dose
Use in Specific Populations

Pregnancy1

There are limited and incomplete human data from clinical trials and post marketing reports on use of KALYDECO in pregnant women. In animal reproduction studies, oral administration of ivacaftor to pregnant rats and rabbits during organogenesis demonstrated no teratogenicity or adverse effects on fetal development at doses that produced maternal exposures up to approximately 5 (rats) and 11 (rabbits) times the exposure at the maximum recommended human dose (MRHD).

Lactation1

There is no information regarding the presence of ivacaftor in human milk, the effects on the breastfed infant, or the effects on milk production. Ivacaftor is excreted into the milk of lactating rats. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for KALYDECO, and any potential effects on the breastfed child from KALYDECO or from the underlying maternal condition.

For more information on pregnancy and lactation, please see full Prescribing Information.

Pediatric use1

KALYDECO is indicated for the treatment of CF in pediatric patients 6 months to 17 years of age who have 1 mutation in the CFTR gene that is responsive to ivacaftor potentiation based on clinical and/or in vitro assay data.

Placebo-controlled clinical trials included the following patients with CF:

  • 6 to 17 years of age with a G551D, G1244E, G1349D, G178R, G551S, S1251N, S1255P, S549N, S549R, R117H mutation in the CFTR gene
  • 12 to 17 years of age who are heterozygous for the F508del mutation and a second mutation predicted to be responsive to ivacaftor

The efficacy of KALYDECO in patients aged 2 to less than 6 years was extrapolated from patients 6 years of age and older with support from population pharmacokinetic analyses showing similar drug exposure levels in adults and children 2 to less than 6 years of age. Safety of KALYDECO in this population was derived from a 24-week, open label, clinical trial in 34 patients ages 2 to less than 6 years (mean age 3 years) administered either 50 mg or 75 mg of ivacaftor granules twice daily (Trial 6). The type and frequency of adverse reactions in this trial were similar to those in patients 6 years and older. Transaminase elevations were more common in patients who had abnormal transaminases at baseline.

The efficacy of KALYDECO in patients aged 6 months to less than 24 months was extrapolated from patients 6 years of age and older with support from population pharmacokinetic analyses showing similar drug exposure levels in adults and children 6 months to less than 24 months of age. Safety of KALYDECO in this population was derived from a cohort of 11 patients aged 6 months to less than 12 months (mean age 9.0 months at baseline), and a cohort of 19 patients aged 12 months to less than 24 months (mean age 15.2 months at baseline) in a 24-week, open-label clinical study, administered either 25 mg, 50 mg or 75 mg of ivacaftor granules twice daily (Trial 8). The safety profile of patients in this trial is similar to that observed in patients 2 years and older.

The safety and efficacy of KALYDECO in patients with CF younger than 6 months of age have not been established. The use of KALYDECO in children under the age of 6 months is not recommended.

Geriatric use1

CF is largely a disease of children and young adults. Clinical trials of KALYDECO did not include sufficient numbers of patients 65 years of age and over to determine whether they respond differently from younger patients.

Hepatic impairment1

No dose adjustment is necessary for patients with mild hepatic impairment (Child-Pugh Class A). Reductions in dose are recommended for patients with moderate (Child-Pugh Class B) and severe hepatic impairment (Child-Pugh Class C).

Please see dose adjustments for moderate and severe hepatic impairment above

Renal impairment1

KALYDECO has not been studied in patients with mild, moderate, or severe renal impairment or in patients with end-stage renal disease. No dose adjustment is necessary for patients with mild to moderate renal impairment; however, caution is recommended while using KALYDECO in patients with severe renal impairment (creatinine clearance less than or equal to 30 mL/min) or end-stage renal disease.

Important Safety Information
Transaminase (ALT or AST) Elevations

Elevated transaminases have been reported in patients with CF receiving KALYDECO. Transaminase elevations were more common in patients with a history of transaminase elevations or in patients who had abnormal transaminases at baseline. It is recommended that ALT and AST be assessed prior to initiating KALYDECO, every 3 months during the first year of treatment, and annually thereafter. For patients with a history of transaminase elevations, more frequent monitoring of liver function tests should be considered

Indications and Usage

KALYDECO® (ivacaftor) is a cystic fibrosis transmembrane conductance regulator (CFTR) potentiator indicated for the treatment of cystic fibrosis (CF) in patients age 6 months and older who have one mutation in the CFTR gene that is responsive to ivacaftor potentiation based on clinical and/or in vitro assay data.

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.

Patients who develop increased transaminase levels should be closely monitored until the abnormalities resolve. Dosing should be interrupted in patients with ALT or AST of greater than 5 times the upper limit of normal (ULN). Following resolution of transaminase elevations, consider the benefits and risks of resuming KALYDECO dosing

Concomitant Use With CYP3A Inducers

Use of KALYDECO with strong CYP3A inducers, such as rifampin, substantially decreases the exposure of ivacaftor, which may reduce the therapeutic effectiveness of KALYDECO. Co-administration of KALYDECO with strong CYP3A inducers, such as rifampin, rifabutin, phenobarbital, carbamazepine, phenytoin, and St. John’s wort is not recommended

Cataracts

Cases of non-congenital lens opacities/cataracts have been reported in pediatric patients treated with KALYDECO. Baseline and follow-up ophthalmological examinations are recommended in pediatric patients initiating KALYDECO treatment

Pediatric Use

The safety and efficacy of KALYDECO in patients with CF younger than 6 months of age have not been studied. The use of KALYDECO in children under the age of 6 months is not recommended

Serious Adverse Reactions

Serious adverse reactions, whether considered drug-related or not by the investigators, which occurred more frequently in patients treated with KALYDECO included abdominal pain, increased hepatic enzymes, and hypoglycemia

Most Common Adverse Reactions

The most common adverse reactions in patients with a G551D mutation in the CFTR gene (Trials 1 and 2) with an incidence of ≥8% and at a higher incidence for patients treated with KALYDECO (N=109) than for placebo (N=104) were headache, oropharyngeal pain, upper respiratory tract infection, nasal congestion, abdominal pain, nasopharyngitis, diarrhea, rash, nausea, and dizziness

The safety profiles for patients with additional approved mutations enrolled in Trials 4, 5, and 7; and for patients ages 2 to less than 6 years enrolled in Trial 6; and for patients aged 6 months to less than 24 months enrolled in Trial 8; were similar to that observed in Trials 1 and 2

Click here to access full Prescribing Information for KALYDECO (ivacaftor).

Reference: 1. KALYDECO (ivacaftor) [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. The Clinical and Functional Translation of CFTR (CFTR2); available at http://cftr2.org. Accessed April 8, 2019. 3. Cystic Fibrosis Genetic Analysis Consortium, The Hospital for Sick Children. Cystic Fibrosis Mutation Database (CFTR1). http://www. genet.sickkids.on.ca/app. Accessed April 8, 2019. 4. Data on file. Vertex Pharmaceuticals Incorporated. Boston, MA. REF-2303; 2019.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Davies JC, Wang LT, Campbell D, et al. Ivacaftor treatment in patients 6 to <12 months old with a CFTR gating mutation: results of a Phase 3, two-part, single-arm study. Poster and abstract presented at: North American Cystic Fibrosis Conference; October 2018; Denver, CO. 3. Rosenfeld M, Wainwright CE, Higgins M, et al. Ivacaftor treatment of cystic fibrosis in children aged 12 to <24 months and with a CFTR gating mutation (ARRIVAL): a phase 3 single-arm study. Lancet Respir Med. 2018; 6(7):545-553. 4. Rosenfeld M, Wainwright CE, Higgins M, et al. Ivacaftor treatment of cystic fibrosis in children aged 12 to <24 months and with a CFTR gating mutation (ARRIVAL): a phase 3 single-arm study. Lancet Respir Med. 2018; 6(7)(suppl):545-553. 5. Davies JC, Cunningham S, Harris WT, et al. Safety, pharmacokinetics, and pharmacodynamics of ivacaftor in patients aged 2-5 years with cystic fibrosis and a CFTR gating mutation (KIWI): an open-label, single-arm study. Lancet Respir Med. 2016;4(2):107-115. 6. Davies JC, Wainwright CE, Canny GJ, et al. Efficacy and safety of ivacaftor in patients aged 6 to 11 years with cystic fibrosis with G551D mutation. Am J Respir Crit Care Med. 2013;187(11):1219–1225. 7. De Boeck K, Munck A, Walker S, et al. Efficacy and safety of ivacaftor in patients with cystic fibrosis and a non-G551D gating mutation. J Cyst Fibros. 2014;13(6):674-680. 8. Moss RB, Flume PA, Elborn JS, et al. Efficacy and safety of ivacaftor in patients with cystic fibrosis who have an Arg117His-CFTR mutation: a double-blind, randomized controlled trial. Lancet Respir Med. 2015;3(7):524-533. 9. US National Library of Medicine. ClinicalTrials.gov. Available at https://clinicaltrials.gov. Accessed April 8, 2019. 10. Ramsey BW, Davies J, McElvaney NG, et al. A CFTR potentiator in patients with cystic fibrosis and the G551D mutation. N Engl J Med. 2011;365(18):1663-1691. 11. Rowe SM, Daines C, Ringshausen FC, et al. Tezacaftor-ivacaftor in residual-function heterozygotes with cystic fibrosis. N Engl J Med. 2017;377(21)(suppl):2024-2035. 12. Van Goor F, Yu H, Burton B, Hoffman BJ. Effect of ivacaftor on CFTR forms with missense mutations associated with defects in protein processing or function. J Cyst Fibros. 2014;13(1):29-36.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Davies JC, Wang LT, Campbell D, et al. Ivacaftor treatment in patients 6 to <12 months old with a CFTR gating mutation: results of a Phase 3, two-part, single-arm study. Poster and abstract presented at: North American Cystic Fibrosis Conference; October 2018; Denver, CO. 3. Rosenfeld M, Wainwright CE, Higgins M, et al. Ivacaftor treatment of cystic fibrosis in children aged 12 to <24 months and with a CFTR gating mutation (ARRIVAL): a phase 3 single-arm study. Lancet Respir Med. 2018;6(7):545-553. 4. Rosenfeld M, Wainwright CE, Higgins M, et al. Ivacaftor treatment of cystic fibrosis in children aged 12 to <24 months and with a CFTR gating mutation (ARRIVAL): a phase 3 single-arm study. Lancet Respir Med. 2018; 6(7)(suppl):553. 5. Data on file. Vertex Pharmaceuticals Incorporated. Boston, MA. VXR-HQ-88-00198; 2018.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Davies JC, Cunningham S, Harris WT, et al. Safety, pharmacokinetics, and pharmacodynamics of ivacaftor in patients aged 2-5 years with cystic fibrosis and a CFTR gating mutation (KIWI): an open-label, single-arm study. Lancet Respir Med. 2016;4(2):107-115. 3. Data on file. Vertex Pharmaceuticals Incorporated. Boston, MA. VXR-HQ-88-00239; 2018.

References: 1. KALYDECO (ivacaftor) [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Davies JC, Wainwright CE, Canny GJ, et al. Efficacy and safety of ivacaftor in patients aged 6 to 11 years with cystic fibrosis with G551D mutation. Am J Respir Crit Care Med. 2013;187(11):1219–1225.

References: 1. KALYDECO (ivacaftor) [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. De Boeck K, Munck A, Walker S, et al. Efficacy and safety of ivacaftor in patients with cystic fibrosis and a non-G551D gating mutation. J Cyst Fibros. 2014;(6)13:674-680.

References: 1. KALYDECO (ivacaftor) [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Moss RB, Flume PA, Elborn JS, et al. Efficacy and safety of ivacaftor in patients with cystic fibrosis who have an Arg117His-CFTR mutation: a double-blind, randomized controlled trial. Lancet Respir Med. 2015;3(7):524-533.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. US National Library of Medicine. ClinicalTrials.gov. Available at https://clinicaltrials.gov. Accessed April 8, 2019. 3. Ramsey BW, Davies J, McElvaney NG, et al. A CFTR potentiator in patients with cystic fibrosis and the G551D mutation. N Engl J Med. 2011;365(18):1663-1672. 4. Ramsey BW, Davies J, McElvaney NG, et al. A CFTR potentiator in patients with cystic fibrosis and the G551D mutation. N Engl J Med. 2011;365(18)(suppl):1663-1672.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Rowe SM, Daines C, Ringshausen FC, et al. Tezacaftor-ivacaftor in residual-function heterozygotes with cystic fibrosis. N Engl J Med. 2017;377(21)(suppl):2024-2035. 3. Rowe SM, Daines, C Ringshausen FC, et al. Tezacaftor-ivacaftor in residual-function heterozygotes with cystic fibrosis. N Engl J Med. 2017;377(21);2024-2035. 4. Data on file. Vertex Pharmaceuticals Incorporated. Boston, MA. VXR-HQ-88-00197; 2018.

References: 1. Van Goor F, Yu H, Burton B, Hoffman BJ. Effect of ivacaftor on CFTR forms with missense mutations associated with defects in protein processing or function. J Cyst Fibros. 2014;13(1):29-36. 2. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 3. Sosnay P, et al. Defining the disease liability of variants in the cystic fibrosis transmembrane conductance regulator gene. Nat Genet. 2013;45(10):1160-1167. 4. FDA approves ivacaftor for 23 additional CFTR mutations [press release]. Cystic Fibrosis Foundation; May 17, 2017.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Rosenfeld M, Wainwright CE, Higgins M, et al. Ivacaftor treatment of cystic fibrosis in children aged 12 to <24 months and with a CFTR gating mutation (ARRIVAL): a phase 3 single-arm study. Lancet Respir Med. 2018;6(7):545-553. 3. Rosenfeld M, Wainwright CE, Higgins M, et al. Ivacaftor treatment of cystic fibrosis in children aged 12 to <24 months and with a CFTR gating mutation (ARRIVAL): a phase 3 single-arm study. Lancet Respir Med. 2018;6(7)(suppl):545-553. 4. Davies JC, Wang LT, Campbell D, et al. Ivacaftor treatment in patients 6 to <12 months old with a CFTR gating mutation: results of a Phase 3, two-part, single-arm study. Poster and abstract presented at: North American Cystic Fibrosis Conference; October 2018; Denver, CO.

Reference: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019.

minus icon
Important Safety Information
Transaminase (ALT or AST) Elevations

Elevated transaminases have been reported in patients with CF receiving KALYDECO. Transaminase elevations were more common in patients with a history of transaminase elevations or in patients who had abnormal transaminases at baseline. It is recommended that ALT and AST be assessed prior to initiating KALYDECO, every 3 months during the first year of treatment, and annually thereafter. For patients with a history of transaminase elevations, more frequent monitoring of liver function tests should be considered

Indications and Usage

KALYDECO® (ivacaftor) is a cystic fibrosis transmembrane conductance regulator (CFTR) potentiator indicated for the treatment of cystic fibrosis (CF) in patients age 6 months and older who have one mutation in the CFTR gene that is responsive to ivacaftor potentiation based on clinical and/or in vitro assay data.

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.

Patients who develop increased transaminase levels should be closely monitored until the abnormalities resolve. Dosing should be interrupted in patients with ALT or AST of greater than 5 times the upper limit of normal (ULN). Following resolution of transaminase elevations, consider the benefits and risks of resuming KALYDECO dosing

Concomitant Use With CYP3A Inducers

Use of KALYDECO with strong CYP3A inducers, such as rifampin, substantially decreases the exposure of ivacaftor, which may reduce the therapeutic effectiveness of KALYDECO. Co-administration of KALYDECO with strong CYP3A inducers, such as rifampin, rifabutin, phenobarbital, carbamazepine, phenytoin, and St. John’s wort is not recommended

Cataracts

Cases of non-congenital lens opacities/cataracts have been reported in pediatric patients treated with KALYDECO. Baseline and follow-up ophthalmological examinations are recommended in pediatric patients initiating KALYDECO treatment

Pediatric Use

The safety and efficacy of KALYDECO in patients with CF younger than 6 months of age have not been studied. The use of KALYDECO in children under the age of 6 months is not recommended

Serious Adverse Reactions

Serious adverse reactions, whether considered drug-related or not by the investigators, which occurred more frequently in patients treated with KALYDECO included abdominal pain, increased hepatic enzymes, and hypoglycemia

Most Common Adverse Reactions

The most common adverse reactions in patients with a G551D mutation in the CFTR gene (Trials 1 and 2) with an incidence of ≥8% and at a higher incidence for patients treated with KALYDECO (N=109) than for placebo (N=104) were headache, oropharyngeal pain, upper respiratory tract infection, nasal congestion, abdominal pain, nasopharyngitis, diarrhea, rash, nausea, and dizziness

The safety profiles for patients with additional approved mutations enrolled in Trials 4, 5, and 7; and for patients ages 2 to less than 6 years enrolled in Trial 6; and for patients aged 6 months to less than 24 months enrolled in Trial 8; were similar to that observed in Trials 1 and 2

Click here to access full Prescribing Information for KALYDECO (ivacaftor).

Reference: 1. KALYDECO (ivacaftor) [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. The Clinical and Functional Translation of CFTR (CFTR2); available at http://cftr2.org. Accessed April 8, 2019. 3. Cystic Fibrosis Genetic Analysis Consortium, The Hospital for Sick Children. Cystic Fibrosis Mutation Database (CFTR1). http://www. genet.sickkids.on.ca/app. Accessed April 8, 2019. 4. Cystic Fibrosis Foundation Patient Registry. 2017 Annual Data Report. Bethesda, Maryland. ©2018 Cystic Fibrosis Foundation.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Davies JC, Wang LT, Campbell D, et al. Ivacaftor treatment in patients 6 to <12 months old with a CFTR gating mutation: results of a Phase 3, two-part, single-arm study. Poster and abstract presented at: North American Cystic Fibrosis Conference; October 2018; Denver, CO. 3. Rosenfeld M, Wainwright CE, Higgins M, et al. Ivacaftor treatment of cystic fibrosis in children aged 12 to <24 months and with a CFTR gating mutation (ARRIVAL): a phase 3 single-arm study. Lancet Respir Med. 2018; 6(7):545-553. 4. Rosenfeld M, Wainwright CE, Higgins M, et al. Ivacaftor treatment of cystic fibrosis in children aged 12 to <24 months and with a CFTR gating mutation (ARRIVAL): a phase 3 single-arm study. Lancet Respir Med. 2018; 6(7)(suppl):545-553. 5. Davies JC, Cunningham S, Harris WT, et al. Safety, pharmacokinetics, and pharmacodynamics of ivacaftor in patients aged 2-5 years with cystic fibrosis and a CFTR gating mutation (KIWI): an open-label, single-arm study. Lancet Respir Med. 2016;4(2):107-115. 6. Davies JC, Wainwright CE, Canny GJ, et al. Efficacy and safety of ivacaftor in patients aged 6 to 11 years with cystic fibrosis with G551D mutation. Am J Respir Crit Care Med. 2013;187(11):1219–1225. 7. De Boeck K, Munck A, Walker S, et al. Efficacy and safety of ivacaftor in patients with cystic fibrosis and a non-G551D gating mutation. J Cyst Fibros. 2014;13(6):674-680. 8. Moss RB, Flume PA, Elborn JS, et al. Efficacy and safety of ivacaftor in patients with cystic fibrosis who have an Arg117His-CFTR mutation: a double-blind, randomized controlled trial. Lancet Respir Med. 2015;3(7):524-533. 9. US National Library of Medicine. ClinicalTrials.gov. Available at https://clinicaltrials.gov. Accessed April 8, 2019. 10. Ramsey BW, Davies J, McElvaney NG, et al. A CFTR potentiator in patients with cystic fibrosis and the G551D mutation. N Engl J Med. 2011;365(18):1663-1691. 11. Rowe SM, Daines C, Ringshausen FC, et al. Tezacaftor-ivacaftor in residual-function heterozygotes with cystic fibrosis. N Engl J Med. 2017;377(21)(suppl):2024-2035. 12. Van Goor F, Yu H, Burton B, Hoffman BJ. Effect of ivacaftor on CFTR forms with missense mutations associated with defects in protein processing or function. J Cyst Fibros. 2014;13(1):29-36.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Davies JC, Wang LT, Campbell D, et al. Ivacaftor treatment in patients 6 to <12 months old with a CFTR gating mutation: results of a Phase 3, two-part, single-arm study. Poster and abstract presented at: North American Cystic Fibrosis Conference; October 2018; Denver, CO. 3. Rosenfeld M, Wainwright CE, Higgins M, et al. Ivacaftor treatment of cystic fibrosis in children aged 12 to <24 months and with a CFTR gating mutation (ARRIVAL): a phase 3 single-arm study. Lancet Respir Med. 2018;6(7):545-553. 4. Rosenfeld M, Wainwright CE, Higgins M, et al. Ivacaftor treatment of cystic fibrosis in children aged 12 to <24 months and with a CFTR gating mutation (ARRIVAL): a phase 3 single-arm study. Lancet Respir Med. 2018; 6(7)(suppl):553. 5. Data on file. Vertex Pharmaceuticals Incorporated. Boston, MA. VXR-HQ-88-00198; 2018.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Davies JC, Cunningham S, Harris WT, et al. Safety, pharmacokinetics, and pharmacodynamics of ivacaftor in patients aged 2-5 years with cystic fibrosis and a CFTR gating mutation (KIWI): an open-label, single-arm study. Lancet Respir Med. 2016;4(2):107-115. 3. Data on file. Vertex Pharmaceuticals Incorporated. Boston, MA. VXR-HQ-88-00239; 2018.

References: 1. KALYDECO (ivacaftor) [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Davies JC, Wainwright CE, Canny GJ, et al. Efficacy and safety of ivacaftor in patients aged 6 to 11 years with cystic fibrosis with G551D mutation. Am J Respir Crit Care Med. 2013;187(11):1219–1225.

References: 1. KALYDECO (ivacaftor) [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. De Boeck K, Munck A, Walker S, et al. Efficacy and safety of ivacaftor in patients with cystic fibrosis and a non-G551D gating mutation. J Cyst Fibros. 2014;(6)13:674-680.

References: 1. KALYDECO (ivacaftor) [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Moss RB, Flume PA, Elborn JS, et al. Efficacy and safety of ivacaftor in patients with cystic fibrosis who have an Arg117His-CFTR mutation: a double-blind, randomized controlled trial. Lancet Respir Med. 2015;3(7):524-533.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. US National Library of Medicine. ClinicalTrials.gov. Available at https://clinicaltrials.gov. Accessed April 8, 2019. 3. Ramsey BW, Davies J, McElvaney NG, et al. A CFTR potentiator in patients with cystic fibrosis and the G551D mutation. N Engl J Med. 2011;365(18):1663-1672. 4. Ramsey BW, Davies J, McElvaney NG, et al. A CFTR potentiator in patients with cystic fibrosis and the G551D mutation. N Engl J Med. 2011;365(18)(suppl):1663-1672.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Rowe SM, Daines C, Ringshausen FC, et al. Tezacaftor-ivacaftor in residual-function heterozygotes with cystic fibrosis. N Engl J Med. 2017;377(21)(suppl):2024-2035. 3. Rowe SM, Daines, C Ringshausen FC, et al. Tezacaftor-ivacaftor in residual-function heterozygotes with cystic fibrosis. N Engl J Med. 2017;377(21);2024-2035. 4. Data on file. Vertex Pharmaceuticals Incorporated. Boston, MA. VXR-HQ-88-00197; 2018.

References: 1. Van Goor F, Yu H, Burton B, Hoffman BJ. Effect of ivacaftor on CFTR forms with missense mutations associated with defects in protein processing or function. J Cyst Fibros. 2014;13(1):29-36. 2. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 3. Sosnay P, et al. Defining the disease liability of variants in the cystic fibrosis transmembrane conductance regulator gene. Nat Genet. 2013;45(10):1160-1167. 4. FDA approves ivacaftor for 23 additional CFTR mutations [press release]. Cystic Fibrosis Foundation; May 17, 2017.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019. 2. Rosenfeld M, Wainwright CE, Higgins M, et al. Ivacaftor treatment of cystic fibrosis in children aged 12 to <24 months and with a CFTR gating mutation (ARRIVAL): a phase 3 single-arm study. Lancet Respir Med. 2018;6(7):545-553. 3. Rosenfeld M, Wainwright CE, Higgins M, et al. Ivacaftor treatment of cystic fibrosis in children aged 12 to <24 months and with a CFTR gating mutation (ARRIVAL): a phase 3 single-arm study. Lancet Respir Med. 2018;6(7)(suppl):545-553. 4. Davies JC, Wang LT, Campbell D, et al. Ivacaftor treatment in patients 6 to <12 months old with a CFTR gating mutation: results of a Phase 3, two-part, single-arm study. Poster and abstract presented at: North American Cystic Fibrosis Conference; October 2018; Denver, CO.

Reference: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019.

References: 1. KALYDECO [prescribing information]. Boston, MA: Vertex Pharmaceuticals Incorporated; April 2019.

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