 - No patients who have had chemotherapy, targeted therapy, or radiotherapy and have not recovered from acute toxicity to their pretreatment baseline or to a grade 1 level within 4 weeks 6 weeks for nitrosoureas or mitomycin C prior to entering the study. For resolution of autoimmune toxicity from prior immune therapy, patients must be off steroids for at least 30 days without relapse of autoimmune toxicity, or it must be at least 30 days from their last dose of infliximab or related immunosuppressive therapy without relapse of autoimmune toxicity. 