AZN reports early data for anti-PD-1/CTLA4 combination of MEDI4736 + Tremelimumab: http://in.reuters.com/article/2014/09/27/us-health-cancer-astrazeneca-idINKCN0HM0AD20140927 Tremelimumab, the anti-CTLA4 drug in the combination, was licensed from PFE in 2011(#msg-67624944).