ecrin-mdr-crcClinical2017Unresectable advanced or reccurrent gastrointestinal malignanciesUnresectable Advanced Or Reccurrent Gastrointestinal MalignanciesObservationalhttps://newmdr.ecrin.org/Study/2644502Japan10ECRIN MDRRecruitingfalseResearch on Liquid Biopsy in Patients with Gastrointestinal and Abdominal Malignancies, Including Colorectal CancerPrimary outcome(s): Prevalence of genomic alterations in 74 cancer-associated genes detected by Guardant3602017-10-152644502JPRN-UMIN000029315