What is the benefit for patients suffering from metastatic colorectal cancer (mCRC) after bevacizumab-based regimen (BBR), cetuximab-based regimen (CBR), and panitumumab (P)?

595 Background: Metastatic colorectal cancer (mCRC) management has been clearly improved by targeted therapies such as anti VEGF and /or anti-HER1 drugs. The evaluation of the use of targeted therapies in the real world is strategic to assess health politics. OMIT Bretagne-Pays de la Loire is a network of private and public cancer centers that has been leading cohort studies evaluating Folfiri-bevacizumab treatment, the cost of targeted therapies and the succession of targeted therapies. Methods: The purpose of this study is to evaluate the benefit and safety of three consecutive targeted therapies in patients with KRAS wild-type unresectable mCRC. Sex, age, localization of the primary tumor site, successive chemotherapeutic regimens, toxicities, response rates, progression free survival and overall survival have been studied. Results: 34 patients (22 men, 12 women, median age 63 years [43-82]) have been prospectively recruited between 2003 and 2010. All of them received bevacizumab specially in associati...