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			 AZD9291, which the company expects to file for U.S. approval in the 
			second quarter of 2015, is one of a number of cancer medicines 
			AstraZeneca is hoping will rebuild its sales following patent losses 
			on older drugs. 
			 
			An analysis presented at the European Lung Cancer Conference in 
			Geneva demonstrated a median progression-free survival for patients 
			on the drug of 13.5 months. 
			 
			AZD9291, like a rival product in development at Clovis Oncology, 
			targets a genetic mutation that helps tumors evade current lung 
			cancer pills, including AstraZeneca's own established product Iressa. 
			 
			During its defense against a $118 billion takeover attempt by Pfizer 
			last year, AstraZeneca said it believed AZD9291 could sell as much 
			as $3 billion a year. 
			 
			(Reporting by Ben Hirschler. Editing by Jane Merriman) 
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