ecrin-mdr-crcClinical2017metastatic colorectal cancerMetastatic Colorectal CancerInterventionalhttps://newmdr.ecrin.org/Study/2644127Japan5ECRIN MDRRecruitingfalseRegorafinib escalation for colorectal cancerInterventions: Regorafinib: 80mg/body/day, given orally for 7 days. After confirmation of acceptability, daily dosage is escalated to 120mg/body/day and given for 7 days. After confirmation of acceptability again, daily dosage is escalated to 160mg/body/day. Primary outcome(s): progression free survival Study Design: Single arm Non-randomized2017-05-152644127JPRN-UMIN000028933