- A) Participant has used chronic systemic immunosuppressive agents within 30 days prior to entry or is anticipated to need chronic systemic immunosuppressive agents during the study. Short courses of systemic corticosteroids (e.g., prednisone or equivalent up to 2 mg/kg/day for less than or equal to 7 days) are permitted, as long as the use was greater than 30 days prior to entry; B) participant has used both chronic inhaled and intranasal steroids within 30 days prior to entry. Use of either inhaled or intranasal steroids are allowed.