Journal
JOURNAL OF CYSTIC FIBROSIS
Volume 20, Issue 1, Pages 36-38Publisher
ELSEVIER
DOI: 10.1016/j.jcf.2020.08.006
Keywords
Cystic fibrosis; Exacerbations; Symptoms; Clinical trials
Categories
Funding
- Cystic Fibrosis Foundation [SANDERS14A0, HELTSH13A1, GOSS13A0, FLUME13A1, CLANCY09Y0, ORENST14Y0, NICKR0, DAINES14Y0]
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This study evaluates the changes in CRISS during intravenous antimicrobial exacerbation treatments and finds that CRISS reduction is associated with higher baseline CRISS and younger age of subjects. CRISS may serve as an effective endpoint for PEx interventional trials.
Introduction: : Symptom improvement was assessed as changes in the Chronic Respiratory Infection Symptom Score (CRISS) during intravenous antimicrobial exacerbation treatments among subjects from study NCT02109822. Methods: : Median daily CRISS reduction (i.e., improvement) and covariates associated with CRISS reduction by Day 14 were assessed by logistic regression. Results: : Among 173 subjects, median baseline CRISS was 49 [IQR 41, 56]; 93.6% had a CRISS reduction of >= 11 (minimal clinically important difference); median time to -11 reduction was 2 days [95% CI 2, 3]. The greatest median CRISS difference from baseline, on Day 17, was -26 [-29, -23]. Odds of -26 CRISS change by Day 14 were greater in subjects with higher baseline CRISS (P=.006) and younger ages (P=.041). Conclusions: : CRISS response has good dynamic range and may be a useful efficacy endpoint for PEx interventional trials. The optimal use of CRISS change as an endpoint remains uncharacterized. (C) 2020 European Cystic Fibrosis Society. Published by Elsevier B.V. All rights reserved.
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