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Bone-drug tests lift Amgen’s shares

A staffer at Newton Wellesley Hospital helps conduct a bone density scan on a patient. A staffer at Newton Wellesley Hospital helps conduct a bone density scan on a patient. (Bill Polo/Globe Staff/File 2007)
July 9, 2009
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Amgen Inc. of Thousand Oaks, Calif., had the best gain in the Standard & Poor’s 500. The world’s largest biotechnology company (with facilities in Cambridge and West Greenwich, R.I.) said its lead experimental product, a bone-strengthening drug called denosumab, did a better job in a clinical trial than Novartis AG’s Zometa to delay fractures in breast cancer patients whose illness had spread to the bones.