Diagnosis of moderate to severe persistent asthma; evidence of positive skin test or in vitro reactivity to an aeroallergan Exclusions.
Exclusions: Severe hypersensitivity to Xolair therapy; acute asthma exacerbation within 2 weeks of screening; acute flare of significant systemic disease within 2 months; use of an experimental drug within 30 days prior to study screening.
Age:
12 years of age and older
Health status:
Moderate to severe asthma
Number of visits required:
Approximately 12 visits
Length of study involvement:
5 years
Tests to be performed:
Blood sample for IgE level, physical exam, spirometry for lung function