This is a 52-week, open-label, multi-centre study designed to evaluate the safety of tralokinumab in a fixed 300 mg dose every 2 weeks, administered subcutaneously in adults and adolescents with indequately controlled asthma on medium to high dose inhaled corticosteroid plus long acting β-2 antagonist. Approximately 26 Japanese subjects will be recruited to receive 22 completed.
