Amgen Lays Out Timeline for KRAS Mutation Studies to Dispel Perceptions of Unethical Rx Development

When Vectibix received approval from the US Food and Drug Administration in 2006, "Amgen already knew the response rate was low," according to an Amgen official. The company began collecting patient tissue samples from mid-2005 to early 2007, knowing it would "need those samples for a biomarker analysis."