30. Zatloukal P HD, Park K, Kang J, Butts C, Bradford S, et al. Randomized phase II clinical trial comparing tremelimumab (CP- 675,206) with best supportive care following first line platinum -based the rapy in patients with advanced non -small cell lung cancer. J Clin Oncol 27:15s, 2009 (suppl; abstr 8071).