ABSTRACT
PURPOSE: Safety and efficacy of tremelimumab (CP-675,206), a fully human anti-cytotoxic T-lymphocyte-associated antigen 4 (CTLA4) monoclonal antibody, were assessed in patients with treatment-refractory colorectal cancer. PATIENTS AND METHODS: A single-arm, multicenter, phase II trial was conducted in patients with Eastern Cooperative Oncology Group performance status