What is Xolair (omalizumab) used for in adults with severe chronic rhinosinusitis with nasal polyps inadequately controlled by intranasal corticosteroids?

Xolair (omalizumab) is used as add-on therapy with intranasal corticosteroids to treat severe chronic rhinosinusitis with nasal polyps in adults aged 18 years and above whose disease is inadequately controlled by intranasal corticosteroids.