Additional Relevant Details The Phase 3 JANUS 1 trial of ruxolitinib, a JAK1 / JAK2 inhibitor, in second line metastatic pancreatic cancer is now fully recruited, with results expected in 2016. The primary endpoint of JANUS 1 is overall survival. Two Phase 2 trials of ruxolitinib, in colorectal and breast cancer, are now fully recruited, with overall survival data expected from both in 2016.