ePS6.10 A real-world study evaluating the impact of elexacaftor/tezacaftor/ivacaftor treatment on medication adherence in cystic fibrosis

Sutton, S.; Hayden, J.; Howlett, M.; Davies, J.; Fleming, A.; Elnazir, B.; Williamson, M.; McKone, E.; Cox, D.; Linnane, B.; Quittner, A.; McNally, P.; Lester, K.

doi:10.1016/s1569-1993(22)00336-8

Journal of Cystic Fibrosis

2022

DOI: 10.1016/s1569-1993(22)00336-8

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ePS6.10 A real-world study evaluating the impact of elexacaftor/tezacaftor/ivacaftor treatment on medication adherence in cystic fibrosis

S. Sutton¹,

J. Hayden²,

M. Howlett³

et al.

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2024

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Medication adherence to CFTR modulators in patients with cystic fibrosis: a systematic review

Hansen,

Breukelman,

van den Bemt

et al. 2024

Eur Respir Rev

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BackgroundIn the last decade, a fundamental shift in the treatment of cystic fibrosis (CF) took place due to the introduction of CF transmembrane conductance regulator (CFTR) modulators. Adequate medication adherence is a prerequisite for their effectiveness, but little is known about adherence to CFTR modulators. We aimed to assess the extent of medication adherence to CFTR modulators in patients with CF and assess which characteristics are associated with adherence.MethodsA systematic review following PRISMA guidelines was performed. Studies needed to report adherence to CFTR modulators. Main outcomes were: 1) level of medication adherence and 2) associations of demographic and/or clinical characteristics with adherence.ResultsIn total, 4082 articles were screened and 21 full-text papers were assessed for eligibility. Ultimately, seven studies were included. Most studies were retrospective and focused on adherence to ivacaftor or lumacaftor–ivacaftor with only one focusing on elexacaftor–tezacaftor–ivacaftor. The majority used pharmacy refill data with adherence determined with the proportion of days covered (PDC) or the medication possession ratio (MPR). One study additionally used electronic monitoring and patient self-reported adherence. Adherence was 0.62–0.99 based on pharmacy data (PDC or MPR), 61%viaelectronic monitoring and 100%viaself-report. Age <18 years appeared to be associated with good adherence, as was a higher lung function.ConclusionsDespite the wide variety of adherence methods used, adherence to CFTR modulators is suboptimal, based on objective measures such as pharmacy refill data or electronic monitoring. CFTR modulator adherence measurement and definitions requires more standardisation with a preference for objective and granular methods.

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Medication adherence to CFTR modulators in patients with cystic fibrosis: a systematic review

Hansen,

Breukelman,

van den Bemt

et al. 2024

Eur Respir Rev

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show abstract

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ePS6.10 A real-world study evaluating the impact of elexacaftor/tezacaftor/ivacaftor treatment on medication adherence in cystic fibrosis

Cited by 1 publication

References 0 publications

Medication adherence to CFTR modulators in patients with cystic fibrosis: a systematic review

Medication adherence to CFTR modulators in patients with cystic fibrosis: a systematic review

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