- ELIGIBILITY FOR TREATMENT ON ARM 1: Patients treated with prior immunotherapy including and not limited to vaccines, cytokines, T cell stimulating agents, cytotoxic T lymphocyte antigen 4 (CTLA4) inhibitors and programmed death (PD)-1 check point inhibitors are allowed on therapy provided they did not have any severe grade 4 toxicities due to prior therapy and any toxicities due to prior therapy should have resolved, if resolvable to less than or equal to grade 1