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- W2940963452 abstract "Abstract Background The cystic fibrosis transmembrane conductance regulator (CFTR) modulators ivacaftor and lumacaftor/ivacaftor improve the status of existing infections in patients with cystic fibrosis (CF). It is unknown how well these drugs protect patients against incident infections. We hypothesized that CFTR modulator treatment would decrease new infections with Pseudomonas aeruginosa or Staphylococcus aureus. Methods We retrospectively studied a single‐center cohort of patients with CF during two time periods (2008‐2011, Era 1) and (2012‐2015, Era 2) based on the January 2012 approval of ivacaftor. Using Kaplan–Meier analysis, we compared the time to any new infection with P. aeruginosa , methicillin‐resistant S. aureus (MRSA), or methicillin‐sensitive S. aureus (MSSA) that was absent during a 2‐year baseline. We stratified the analysis based on whether patients received ivacaftor or lumacaftor/ivacaftor during Era 2. We used the log‐rank test and considered P < 0.05 statistically significant. Results For patients receiving ivacaftor or lumacaftor/ivacaftor in Era 2, there was a statistically significant delay in the time to new bacterial acquisition in Era 2 vs. Era 1 ( P = 0.008). For patients who did not receive CFTR modulators, there was a trend toward slower acquisition of new bacterial infections in Era 2 compared to Era 1, but this was not statistically significant ( P = 0.10). Conclusions Patients receiving ivacaftor or lumacaftor/ivacaftor for CF had significantly delayed acquisition of P. aeruginosa and S. aureus after these drugs were released. This method for analyzing incident infections may be useful for future studies of CFTR modulators and bacterial acquisition in CF registry cohorts." @default.
- W2940963452 created "2019-05-03" @default.
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- W2940963452 date "2019-04-22" @default.
- W2940963452 modified "2023-10-16" @default.
- W2940963452 title "Pathogen acquisition in patients with cystic fibrosis receiving ivacaftor or lumacaftor/ivacaftor" @default.
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- W2940963452 doi "https://doi.org/10.1002/ppul.24341" @default.
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