“…12 Until recently, 3 regimens dominated firstline treatment of CRC: FU, available since the 1960s, which has been routinely administered with FU/LV since the early 1990s or with irinotecan (IFL or Folfiri) since 2000. 8,13,14 In the past decade, the U.S. Food and Drug Administration approved several new drugs, such as capecitabine, oxaliplatin, bevacuzimab, cetuximab, and panitumumab, which have been widely used in the treatment of CRC patients. 8 This study found that biologics, including bevacuzimab, cetuximab, and panitumumab, were more likely added into regimens in the third + lines as compared with earlier lines.…”