ecrin-mdr-crcClinical2010Neoplastic Cells, CirculatingColorectal CancerColorectal NeoplasmsMetastasisNeoplastic Cells, CirculatingColorectal CancerColorectal NeoplasmsMetastasisObservationalhttps://newmdr.ecrin.org/Study/2092151Hong Kong6Identifying an early indicator of drug efficacyECRIN MDRCompletedfalsePET-CT and Circulating Tumor Cells in Colorectal CancerThe purpose of this study is to identify an early indicator of drug efficacy in patients with advanced colorectal cancer - a prospective evaluation of circulating tumor cells, positron-emission tomography scan and RECIST criteria.2010-06-152092151NCT01163305