Early anti-pseudomonal acquisition in young patients with cystic fibrosis: rationale and design of the EPIC clinical trial and observational study'.
ABSTRACT The primary cause of morbidity and mortality in patients with cystic fibrosis (CF) is progressive obstructive pulmonary disease due to chronic endobronchial infection, particularly with Pseudomonas aeruginosa (Pa). Risk factors for and clinical impact of early Pa infection in young CF patients are less well understood.
The present studies are designed to evaluate risk factors and outcomes associated with early Pa acquisition, and the benefits and harms of four anti-pseudomonal treatment regimens in young CF patients initiated after the first Pa positive respiratory culture.
The Early Pseudomonas Infection Control (EPIC) program consists of two studies, a randomized multicenter trial in CF patients ages 1-12 years at first isolation of Pa from a respiratory culture, and a longitudinal cohort study enrolling Pa-negative patients. Using a factorial design, trial participants are assigned for 18 months to either anti-pseudomonal treatment on a scheduled quarterly basis (cycled therapy) or based on recovery of Pa from quarterly respiratory cultures (culture-based therapy). The study drugs include inhaled tobramycin (300 mg BID) for 28 days, combined with either oral ciprofloxacin (15-20 mg/kg BID) or oral placebo for 14 days. The primary endpoints of the trial are the time to pulmonary exacerbation requiring IV antibiotics or hospitalization for respiratory symptoms, and the proportion of patients with new Pa-positive respiratory cultures during the study. The broad goals of the observational study are to describe the risk factors and outcomes associated with early acquisition of Pa. 306 patients were randomized in the clinical trial and 1787 were enrolled in the cohort study.
These companion studies will provide valuable epidemiological and microbiological information on early CF lung disease and Pa acquisition, and safety and clinical efficacy data on anti-pseudomonal treatment strategies for early Pa infections in the airways of young children with CF.
Article: Validation of a disease-specific measure of health-related quality of life for children with cystic fibrosis.[show abstract] [hide abstract]
ABSTRACT: The purpose of the current study was to evaluate the psychometric properties of the Cystic Fibrosis Questionnaire (CFQ)-Child version, a disease-specific health-related quality of life (HRQOL) measure for children with cystic fibrosis (CF). The CFQ was administered to 84 children with CF, ranging in age from 7 to 13 years, and their parents. Multitrait analyses indicated that a majority of items on the CFQ-Child correlated more highly with their hypothesized scale than a competing scale. Internal consistency coefficients were acceptable for all scales (Cronbach's alpha =.60-.76), with the exception of treatment burden (Cronbach's alpha =.44). Results also suggested strong convergence between child and parent-proxy reports on several scales of the CFQ. Results demonstrated that the CFQ-Child is a reliable and valid measure of HRQOL for children with CF.Journal of Pediatric Psychology 01/2004; 28(8):535-45. · 2.91 Impact Factor