The purpose of this study is to evaluate the efficacy and tolerability of beclometasone/formoterol single inhaler in a twice daily regimen in patients with moderate to severe persistent asthma. Patients are randomised to receive either beclometasone/formoterol single inhaler (total daily dose: BDP/FF 400/24 mcg) or beclometasone CFC + formoterol DPI (total daily dose: BDP 1000 mcg + FF 24 mcg) or beclometasone CFC (total daily dose: BDP 1000 mcg) during 24 weeks of treatment.
Efficacy and tolerability of the fixed combination beclometasone/formoterol in patients with moderate to severe persistent asthma.