Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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! # Ola via Alexandros G.Sfakianakis on Inoreader

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Τρίτη 27 Νοεμβρίου 2018

Ivacaftor improves rhinologic, psychologic, and sleep‐related quality of life in G551D cystic fibrosis patients

Background

Ivacaftor is a cystic fibrosis transmembrane conductance regulator (CFTR) potentiator that improves pulmonary function in cystic fibrosis (CF) patients with at least 1 copy of the G551D CFTR mutation. The purpose of this study is to evaluate the impact of ivacaftor on chronic rhinosinusitis (CRS) symptoms in this population.

Methods

The G551D Observational (GOAL) study was a multicenter prospective cohort study enrolling CF patients ≥6 years with at least 1 G551D mutation. Subjects were provided 20‐item Sino‐Nasal Outcome Test (SNOT‐20) questionnaires prior to ivacaftor therapy and at 1, 3, and 6 months afterward. The impact on rhinologic (R), psychological (P), sleep (S), and ear/facial (E) quality of life (QOL) domains was evaluated separately.

Results

Of 153 subjects, 129 (84%) completed all questionnaires. Typical baseline symptom burden was low (75% with scores <1) and degree of improvement (ie, reduced scores) was greater with higher baseline scores. SNOT‐20 decreased, reflecting improvement, at all follow‐up intervals (1 month: [mean change ± standard deviation] –0.25 ± 0.53, p < 0.01; 3 months; –0.29 ± 0.58, p < 0.01; 6 months: –0.21 ± 0.58, p = 0.02), but less than the prespecified minimal clinically important difference (0.8). Significant improvement was observed at 1, 3, and 6 months in the R domain (1 month: –0.24, p < 0.01; 3 months: –0.34, p < 0.01; 6 months: –0.25, p < 0.01) and P domain (1 month: –0.25, p < 0.01; 3 months: –0.32, p < 0.01; 6 months: –0.26, p < 0.01), and 1 and 3 months in the S domain (1 months: –0.35, p < 0.01; 3 months: –0.32, p < 0.01; 6 months: –0.18, p = 0.07). There was no improvement in the E domain at any time point.

Conclusion

Ivacaftor improves QOL in the R, P, and S domains in G551D CF patients, although QOL instruments validated for CRS may not translate well to CF CRS patients because symptom burden was surprisingly low.



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