Efficacy of Ciclesonide vs Fixed Combination of Fluticasone Propionate/Salmeterol vs Placebo in Patients With Mild Persistent Asthma (12 to 75 y) (BY9010/M1-132)

Main Inclusion Criteria: * Clinical diagnosis of mild persistent asthma * Pre-treatment with SABAs only * FEV1 ≥80% predicted * Good health with the exception of asthma Main Exclusion Criteria: * Concomitant severe diseases or diseases which are contraindications for the use of inhaled steroids * COPD (chronic bronchitis or emphysema) and/or other relevant lung diseases causing alternating impairment in pulmonary function * Pregnancy * Intention to become pregnant during the course of the study * Breast feeding * Lack of safe contraception * Current smokers ≥10 pack-years and ex-smokers with ≥10 pack-years