Efficacy of Ciclesonide Inhaled Once Daily Versus Fluticasone Propionate Inhaled Twice Daily in Children With Asthma (4 to 15 y) (BY9010/M1-205)

Main Inclusion Criteria: * History of persistent bronchial asthma for at least 6 months * FEV1 50-90% of predicted 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 lung function * Respiratory tract infection or asthma exacerbation within the last 30 days prior to entry into the study * History of life-threatening asthma * Premature birth * Current smoking * Smoking history with either equal or more than 10 pack-years * Pregnancy * Intention to become pregnant during the course of the study * Breast feeding * Lack of safe contraception