A randomized, open label, parallel-group, international, multicenter study evaluating persistency of response to omalizumab during 32 weeks treatment given as add on to optimized asthma therapy in adults and adolescent patients with severe persistent allergic asthma, who remain inadequately controlled despite GINA (2004) step 4 therapy
Laufzeit: 01.01.2006 - 31.12.2008