Study to Evaluate Efficacy and Safety of Tezepelumab in Reducing Oral Corticosteroid Use in Adult Patients With Severe Asthma

This is a multicentre, single-arm, phase 3b study designed to evaluate efficacy and safety of reducing daily oral corticosteroid use after initiation of 210 mg dose of Tezepelumab administered subcutaneously in patients with severe asthma receiving high-dose inhaled corticosteroid plus long-acting β2 agonist and oral corticosteroids with or without additional asthma controller medications.