- 1. Pregnant or nursing women or subjects expecting to conceive children within the projected duration of the study, starting with the screening visit through 120 days after the last dose of study treatment.Diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg [> 10 mg] daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days before the first dose of study treatment. Use of inhaled or topical steroids or systemic corticosteroids < 10 mg is permitted.