CONCEPT: A 1-Year Comparison Of A Stable Dose Of SERETIDE® Inhaler With An Adjustable Maintenance Dose Of SYMBICORT® Inhaler. SERETIDE® Inhaler is a Trademark of GSK Group of Companies. SYMBICORT® Inhaler is a Trademark of Astra Zeneca.

A randomised, double-blind, double-dummy, 52-week, parallel group study of a standard dosing regimen with salmeterol/fluticasone propionate combination 50/250mcg bid (via the DISKUS/ACCUHALER inhaler) versus a symptom-driven variable dosing regimen with formoterol/budesonide combination 6/200mcg (via a breath-actuated dry powder reservoir inhaler)in adults asthmatics