Three European companies douse hopes for new drugs [How's that for a cheery headline?] By Ben Hirschler and Elena Berton LONDON/PARIS (Reuters) - Three of Europe's biggest drugmakers -- AstraZeneca (LSE:AZN.L - News), Novartis (VTX:NOVN.VX - News) and Sanofi (:SASY.PA) -- reported product setbacks on Tuesday, underlining the difficulties of developing new medicines to make up for those going off patent. http://finance.yahoo.com/news/Three-European-companies-rb-2264591705.html AZN -- cancer (olaparib), depression -- poor results NVS -- Rasilez -- blood pressure - placebo better ASY.PA -- oral multiple sclerosis (MS) drug Aubagio -- no better than Rebif