Journal
WORLD JOURNAL OF GASTROENTEROLOGY
Volume 13, Issue 44, Pages 5877-5887Publisher
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.3748/wjg.v13.i44.5877
Keywords
epidermal growth factor receptor inhibitors; cetuximab; panitumumab; erlotinib; gefitinib; metastatic; colorectal cancer; tyrosine kinase inhibitors; monoclonal antibodies
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Colorectal cancer constitutes one of the most common malignancies and the second leading cause of death from cancer in the western world representing one million new cases and half a million deaths annually worldwide. The treatment of patients with metastatic colon cancer comprises different regimens of chemotherapeutic compounds (fluoropyrimidines, irinotecan and oxaliplatin) and new targeted therapies. Interestingly, most recent trials that attempt to expose patients to all five-drug classes (fluoropyrimidines, irinotecan, oxaliplatin, bevacizumab and cetuximab) achieve an overall survival well over 2 years. In this review we will focus on the main epidermal growth factor receptor inhibitors demonstrating clinical benefit for colorectal cancer mainly cetuximab, panitumumab, erlotinib and gefitinib. We will also describe briefly the molecular steps that lie beneath them and the different clinical or molecular mechanisms that are reported for resistance and response. (C) 2007 WJG. All rights reserved.
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