Project description:Interventions: A group:Before using cetuximab;B group:After progression of disease:no Primary outcome(s): KRAS gene sequence;NRAS gene sequence;BRAF gene sequence;PIK3CA gene sequence;EGFR gene sequence;EGFR gene copy numbers;EGFR expression;Her2 expression;c-Met expression;PTEN expression Study Design: historical control

| 2671639 | ecrin-mdr-crc

TR study of ‘multicenter Phase II study to evaluate efficacy and safety of combination therapy with trastuzumab and pertuzumab in patients with HER2-positive metastatic colorectal cancer&quot

Project description:Primary outcome(s): Cancer-related gene alteration, expression of protein, and expression of RNA

| 2645675 | ecrin-mdr-crc

TR study of ‘A multicenter phase II study of eribulin monotherapy in patients with BRAF V600E mutant metastatic colorectal cancer (BRAVERY study)&quot

Project description:Primary outcome(s): cancer-related gene alteration, gene expression, microsatellite instability, BRAF mutant allele frequency

| 2646701 | ecrin-mdr-crc