Updated Cabozantinib Data Includes 6 Patient Deaths
June 8th 2011Cabozantinib (XL184), a novel tyrosine kinase inhibitor, caused the deaths of 6 patients in a phase II clinical trial, according to data presented at ASCO's annual meeting. The fatalities had not been reported with the cabozantinib data at the May 18 pre-ASCO press briefing. Shares of the drug's manufacturer, Exelixis, fell 20% as investors reacted to the news.