Update 1: Onyx Shares Fall on Cancer Drug Filing
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Shares of Onyx Pharmaceuticals Inc. plunged after it and partner Bayer Pharmaceuticals Corp. said Monday they will use data from an ongoing late-stage clinical trial to seek marketing approval of their kidney
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Despite announcing the biggest news in its short history, OSI Pharmaceuticals stock fell nearly 10 percent Friday, as some investors grew nervous about whether its newly approved cancer drug would be the bonanza they expected.
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Shares of large US and European drug makers fell on Thursday after a prominent cardiologist questioned the safety of new arthritis drugs and the performance of US regulators in monitoring drug safety.
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SuperGen Inc. SUPG.O on Monday said  it has withdrawn an application to market its pancreatic cancer  drug in the United States, casting a cloud on the drug's future  in the world's biggest market and sending the company's shares  down as much as 16 percent.
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Shares of Pfizer (PFE:NYSE - news - research) dropped Thursday after a Canadian newspaper reported that the arthritis drug Celebrex is &quot;suspected of contributing to at least 14 deaths.
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Shares of Merck &amp; Co. (MRK.N: Quote, Profile, Research) fell on Thursday after a US study suggested that patients taking its Vioxx arthritis drug had a 50 percent greater risk
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Shares of Merck &amp; Co. plunged more than 7 percent Monday after a media report said that documents show the pharmaceutical giant hid or denied evidence for years that its blockbuster arthritis drug Vioxx cause heart problems.
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Shares of AtheroGenics Inc. (AGIX.O: Quote, Profile, Research) tumbled 24 percent before the opening bell on Wednesday after the drug maker said a mid-stage clinical trial of its
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Drug stocks across the board fell amid renewed safety concerns over a class of blockbuster drugs used to treat arthritis. Preprint articles published on the New England Journal of Medicine&#39;s Web site Wednesday
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Leading shares closed the session under pressure, hit by weakness in heavyweight pharmas after AstraZeneca admitted a key cancer drug had failed tests and poor trading in New York, dealers said.
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Credit Suisse First Boston said that an announcement from Onyx Pharmaceuticals (nasdaq: ONXX - news - people ) is &quot;good news&quot; for Genentech (nyse: DNA - news - people ) and its Avastin treatment.
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Shares in Schering dropped on Friday  after the German drugmaker said U.S. regulators needed more  information to approve its key Bonefos drug for use in  preventing bone tumors in breast cancer patients.
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NEW YORK - Shares of pharmaceutical company Pfizer Inc. fell sharply in early trading after the firm reported an increased risk of heart disease for patients taking its Celebrex painkiller and arthritis drug.
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Bayer HealthCare stopped a late-stage trial of Nexavar in patients with non-small cell lung cancer after a monitoring committee concluded the study would not improve overall survival.
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Shares in Pfizer Inc, the world's  biggest drugmaker, fell more than 10 percent in early trade in  Europe on Monday, after news it had scrapped its most important  experimental drug.
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NEW YORK  - Drugs giant Pfizer Inc.&#39;s stock fell on a report that new prescriptions for its blockbuster pain medication Celebrex slumped 56 percent last week.
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Shares in GlaxoSmithKline fall after it issues a profit warning on the back of falling demand for a key drug.