19. Treatment with systemic corticosteroids or other systemic immunosuppressive medications (including but not limited to prednisone, dexamethasone, cyclophosphamide, azathioprine, methotrexate, thalidomide, and anti-tumor necrosis factor [TNF] agents), or anticipated requirement for systemic immunosuppressive medications during the trial. Patients who have received acute, low dose, systemic immunosuppressant medications (e.g., dexamethasone prior to the anthracycline-based chemotherapy for nausea) may be enrolled in the study. The use of inhaled corticosteroids and mineralocorticoids (e.g., fludrocortisone) is allowed