P-292A phase II study of dose-escalation of regorafenib for patients with previously treated metastatic colorectal cancer – DEREGULATE study - Trial in progress. (20th June 2018) - Kawaguchi, K; Nishitai, R; Manaka, D; Ota, T; Nishikawa, Y; Kudo, R; An, H; Hamasu, S; Konishi, S