The abstract of the pooled meta-analysis is not definitive (JCO 35, 2017: suppl; abstr LBA1), and of the phase III trials (SCOT, TOSCA, Alliance/SWOG 80702, PRODIGE, ACHIEVE, HORG) several are not directly relevant to the US population due to the more standard use of FOLFOX > XELOX in the adjuvant setting.