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Aztreonam for inhalation solution (AZLI) in patients with cystic fibrosis, mild lung impairment, and P. aeruginosa.

Author(s): Wainwright CE, Quittner AL, Geller DE, Nakamura C, Wooldridge JL, Gibson RL, Lewis S, Montgomery AB

Affiliation(s): Queensland Children's Respiratory Centre, Royal Children's Hospital, Herston Rd. Herston, Queensland 4029, Australia. Claire_wainwright@health.qld.gov.au

Publication date & source: 2011-07, J Cyst Fibros., 10(4):234-42. Epub 2011 Mar 26.

Publication type: Multicenter Study; Randomized Controlled Trial; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't

BACKGROUND: Previous aztreonam for inhalation solution (AZLI) studies included patients with cystic fibrosis, Pseudomonas aeruginosa (PA) airway infection, and forced expiratory volume in 1s (FEV(1)) 25% to 75% predicted. This double-blind, multicenter, randomized, placebo-controlled trial enrolled patients (>/=6 years) with FEV(1)>75% predicted. METHODS: AZLI 75 mg (n=76) or placebo (n=81) was administered 3-times daily for 28days with a 14-day follow-up. RESULTS: Day 28 treatment effects were 1.8points for CFQ-R-Respiratory Symptoms Scale (95%CI: -2.8, 6.4; p=0.443; primary endpoint); -1.2 for log(10) sputum PA colony-forming units (p=0.016; favoring AZLI), and 2.7% for relative FEV(1)% predicted (p=0.021; favoring AZLI). Treatment effects favoring AZLI were larger for patients with baseline FEV(1) <90% predicted compared to >/=90% predicted. AZLI was well-tolerated. CONCLUSIONS: Effects on respiratory symptoms were modest; however, FEV(1) improvements and bacterial density reductions support a possible role for AZLI in these relatively healthy patients. Copyright (c) 2011 European Cystic Fibrosis Society. Published by Elsevier B.V. All rights reserved.

Page last updated: 2011-12-09

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