Abstract
Tremelimumab (CP 675206; CP-675; CP-675,206; CP-675206; Ticilimumab) is a fully human IgG2 anitbody, which is directed against human cytotoxic T lymphocyte-associated antigen 4 (CTLA4). It is being developed by Pfizer for the treatment of various cancers. It is currently in worldwide phase III development for malignant melanoma, phase II development for colorectal cancer, gastrointestinal cancer, gynecological cancer, and non-small cell lung cancer in the US and other countries, and is also being investigated for prostate, breast, and pancreatic cancer in various countries. This review discusses the key development milestones and therapeutic trials of this drug.