WILMINGTON, Del.--(BUSINESS WIRE)--AstraZeneca (NYSE:AZN) today announced the publication of data demonstrating that SYMBICORT Inhalation Aerosol 320/9 µg twice daily had a safety profile similar to budesonide pressurized metered-dose inhaler (pMDI)* 320 µg twice daily in a 52-week study in African-American patients with moderate-to-severe persistent asthma. The most common adverse events, regardless of study drug relationship, were headache, nasopharyngitis, sinusitis, and viral upper respiratory tract infection. No unexpected patterns of abnormalities were observed in laboratory, electrocardiographic, or Holter monitoring assessments. These data have been published in the May 1st online edition of The Journal of Allergy & Clinical Immunology (JACI).