A Study of Ciclesonide Nasal Spray in Patients 18 Years and Older With Seasonal Allergic Rhinitis (BY9010/M1-413)

Main Inclusion Criteria: * Written informed consent * General good health * History of SAR to short ragweed pollen for 2 years immediately preceding the study * Demonstrated sensitivity to short ragweed known to induce SAR through a standard skin prick test Main Exclusion Criteria: * Clinically significant physical finding of nasal anatomical deformities causing greater than 50% obstruction, including but not limited to nasal polyps, septal defects, respiratory tract malformations, nasal trauma or surgery * Known hypersensitivity to any corticosteroid * History of a respiratory infection or disorder including but not limited to bronchitis, pneumonia, chronic sinusitis, influenza or SARS (severe acute respiratory syndrome) within 14 days preceding the Screening Visit * History of alcohol or drug abuse within 2 years preceding the Screening Visit * Active asthma requiring treatment of inhaled or systemic corticosteroids and/or routine use of beta-agonists or any controller drugs * Use of antibiotic therapy for acute conditions within 14 days preceding the Screening Visit * Exposure to systemic corticosteroids for any indication, chronic or intermittent within 60 days preceding the Screening Visit