RT Journal Article SR Electronic A1 Rizzo, Toni T1 New Analysis of CRYSTAL Results Supports Patient Selection According to RAS Mutation Status to Maximize Benefit from CET Therapy JF MD Conference Express YR 2014 FD SAGE Publications VO 14 IS 22 SP 9 OP 10 DO 10.1177/155989771422004 UL http://mdc.sagepub.com/content/14/22/9.abstract AB The randomized Phase 3 Cetuximab Combined With Irinotecan in First-Line Therapy for Metastatic Colorectal Cancer trial [CRYSTAL; Van Cutsem E et al. N Engl J Med 2009] investigated the efficacy and safety of cetuximab combined with a simplified regimen of leucovorin–5-flourouracil—irinotecan (FOLFIRI) for the initial treatment of metastatic colorectal cancer.