Biotechnology Ahead of the annual American Society of Clinical Oncology (ASCO) meeting which takes place in Chicago June 1-5, Amgen (Nasdaq: AMGN), the world's largest independent biotech company reported results from an exploratory biomarker analysis on a previously reported Phase II study showing that rilotumumab + chemotherapy improved median overall survival in metastatic gastric or gastroesophageal cancer patients (OS from 5.7 months to 11.1 months; HR=1.84, 95% CI; 0.78 - 4.34), whose tumors exhibited high MET protein expression. 17 May 2012