Efficacy of Ciclesonide Inhaled Once Daily Versus Other Corticosteroids Used for Treatment of Mild Asthma in Children (4 to 11 Years) (BY9010/CA-101)

Main Inclusion Criteria: * Outpatients * Symptoms consistent with the diagnosis of asthma for at least 12 months * Forced Expiratory Volume in one Second (FEV) at least 80% of predicted * Participants who have a history of reversible airway obstruction * Good health with the exception of asthma Main Exclusion Criteria: * History of life-threatening asthma * A hospitalization for asthma within the last 3 months, or more than two hospitalizations for asthma within the last year * Concomitant severe diseases or diseases which are contraindications for the use of inhaled steroids * Participants suffering from relevant lung diseases causing alternating impairment in lung function (e.g. chronic bronchitis or emphysema) * Prematurely born children (\<36 weeks of gestation) * Smokers * Pregnancy (or intention to become pregnant during the course of the trial), breast feeding or lack of safe contraception by female of child-bearing potential