- Receipt of corticosteroids within 7 days prior to the first dose of the study treatment, unless the patient has been taking a continuous dose of no more than 15 mg/day of prednisone for at least 1 month prior to the first dose of the study treatment. Low-dose steroid use for the control of nausea and vomiting will be allowed. Topical steroid use is permitted. Inhaled steroids are permitted;