Ivacaftor
Also known as: Kalydeco
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In short
Ivacaftor is a cystic fibrosis transmembrane conductance regulator potentiator that is used to treat cystic fibrosis. In the European Union, ivacaftor tablets are indicated as monotherapy for patients aged 6 years and older weighing 25 kg or more with an R117H CFTR mutation or specific gating mutations, or in combination regimens with tezacaftor/ivacaftor or ivacaftor/tezacaftor/elexacaftor for patients aged 6 years and older with specific mutations. European Union approval also includes ivacaftor granules as monotherapy for infants aged at least 1 month, toddlers, and children weighing 3 kg to less than 25 kg with an R117H CFTR mutation or specific gating mutations. In the United States, ivacaftor is indicated for the treatment of cystic fibrosis in patients aged 1 month and older who have at least one mutation in the CFTR gene that is responsive to ivacaftor potentiation based on clinical or in vitro assay data.
From: Data provided by the U.S. Food and Drug Administration. · Source: European Medicines Agency (EMA) — EPAR. © European Medicines Agency. · Source: European Medicines Agency (EMA), Kalydeco — EPAR, 04/08/2025. © European Medicines Agency.
AI-generated summary of the sources cited on this page, checked automatically against them. Not reviewed by a clinician; not medical advice.
Codes
- RxNorm
- 1243041 ivacaftor
- EMA
- EMEA/H/C/002494
Official indications
Quoted unchanged from official product information, in English. Listed alphabetically by product, not ranked.
EMA (EU) Kalydeco
Kalydeco tablets are indicated: - As monotherapy for the treatment of adults, adolescents, and children aged 6 years and older and weighing 25 kg or more with cystic fibrosis (CF) who have an R117H CFTR mutation or one of the following gating (Class III) mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene: G551D, G1244E, G1349D, G178R, G551S, S1251N, S1255P, S549N or S549R. - In a combination regimen with tezacaftor/ivacaftor tablets for the treatment of adults, adolescents, and children aged 6 years and older with cystic fibrosis (CF) who are homozygous for the F508del mutation or who are heterozygous for the F508del mutation and have one of the following mutations in the CFTR gene: P67L, R117C, L206W, R352Q, A455E, D579G, 711+3A→G, S945L, S977F, R1070W, D1152H, 2789+5G→A, 3272 26A→G, and 3849+10kbC→T. - In a combination regimen with ivacaftor/tezacaftor/elexacaftor tablets for the treatment of adults, adolescents, and children aged 6 years and older with cystic fibrosis (CF) who have at least one non-Class I mutation in the CFTR gene. Kalydeco granules are indicated: - As monotherapy for the treatment of infants aged at least 1 month, toddlers and children weighing 3 kg to less than 25 kg with cystic fibrosis (CF) who have an R117H CFTR mutation or one of the following gating (Class III) mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene: G551D, G1244E, G1349D, G178R, G551S, S1251N, S1255P, S549N or S549R. - In a combination regimen with ivacaftor/tezacaftor/elexacaftor for the treatment of cystic fibrosis (CF) in paediatric patients aged 2 to less than 6 years who have at least one non-Class I mutation in the CFTR gene.
Source: European Medicines Agency (EMA), Kalydeco — EPAR, 04/08/2025. © European Medicines Agency.
Document date: 04/08/2025 · Official document →
FDA (USA) Kalydeco
1 INDICATIONS AND USAGE KALYDECO is indicated for the treatment of cystic fibrosis (CF) in patients aged 1 month and older who have at least one mutation in the CFTR gene that is responsive to ivacaftor potentiation based on clinical and/or in vitro assay data [see Clinical Pharmacology (12.1) and Clinical Studies (14) ] . 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. KALYDECO is a cystic fibrosis transmembrane conductance regulator (CFTR) potentiator indicated for the treatment of cystic fibrosis (CF) in patients aged 1 month and older who have at least one mutation in the CFTR gene that is responsive to ivacaftor based on clinical and/or in vitro assay data. ( 12.1 , 14 ) 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. ( 1 )
Data provided by the U.S. Food and Drug Administration.
Document date: 20260323 · Official document →
Related terms in the cited sources
Has an official indication for
- Cystic Fibrosis Condition
In alphabetical order.
Other treatments A–Z
What people report
Not enough data yet. Anonymous counts appear here only for groups of at least 20 people who agreed to share them.
External resources
Questions
What is Ivacaftor approved for in the European Union?
Kalydeco tablets are indicated: - As monotherapy for the treatment of adults, adolescents, and children aged 6 years and older and weighing 25 kg or more with cystic fibrosis (CF) who have an R117H CFTR mutation or one of the following gating (Class III) mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene: G551D, G1244E, G1349D, G178R, G551S, S1251N, S1255P, S549N or S549R. - In a combination regimen with tezacaftor/ivacaftor tablets for the treatment of adults, adolescents, and children aged 6 years and older with cystic fibrosis (CF) who are homozygous for the F508del mutation or who are heterozygous for the F508del mutation and have one of the following mutations in the CFTR gene: P67L, R117C, L206W, R352Q, A455E, D579G, 711+3A→G, S945L, S977F, R1070W, D1152H, 2789+5G→A, 3272 26A→G, and 3849+10kbC→T. - In a combination regimen with ivacaftor/tezacaftor/elexacaftor tablets for the treatment of adults, adolescents, and children aged 6 years and older with cystic fibrosis (CF) who have at least one non-Class I mutation in the CFTR gene. Kalydeco granules are indicated: - As monotherapy for the treatment of infants aged at least 1 month, toddlers and children weighing 3 kg to less than 25 kg with cystic fibrosis (CF) who have an R117H CFTR mutation or one of the following gating (Class III) mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene: G551D, G1244E, G1349D, G178R, G551S, S1251N, S1255P, S549N or S549R. - In a combination regimen with ivacaftor/tezacaftor/elexacaftor for the treatment of cystic fibrosis (CF) in paediatric patients aged 2 to less than 6 years who have at least one non-Class I mutation in the CFTR gene. (Source: European Medicines Agency (EMA), Kalydeco — EPAR, 04/08/2025. © European Medicines Agency.)
Sources and attribution
- Source: European Medicines Agency (EMA) — EPAR. © European Medicines Agency.
- Names other than the official source titles: Anpheros translations and plain-language names, made with AI assistance and checked automatically; the source names are in English.
- Data provided by the U.S. Food and Drug Administration.
- This product uses publicly available data from the U.S. National Library of Medicine (NLM), National Institutes of Health, Department of Health and Human Services; NLM is not responsible for the product and does not endorse or recommend this or any other product.
- Source: European Medicines Agency (EMA), Kalydeco — EPAR, 04/08/2025. © European Medicines Agency.
Anpheros Search catalog 2026.10.5, published 17 October 2026. About the data →
About this page. This page brings together public information from official sources, each cited where it is used. It is not medical advice, it is not a diagnosis, and it does not tell you which treatment to take.
Treatments. Indications are quoted unchanged from official product information (European Medicines Agency, U.S. Food and Drug Administration). They describe what a medicine is approved for, not whether it is right for you. Approved uses can differ between countries. Always read the package leaflet and follow your doctor's or pharmacist's advice.
What people report. Figures marked "reported by Anpheros users" are anonymous counts from at least 20 people who agreed to share them. They show what people report, not what works, and they are not clinical evidence.
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