- Patient is currently receiving or has received systemic corticosteroids ≤ 2 weeks prior to starting study drug, or has not fully recovered from side effects of such treatment. The following uses of corticosteroids are permitted: single doses, topical application (e.g., for rash), inhaled sprays (e.g., for obstructive airway diseases), eye drops or local injections (e.g., intra-articular).