BUZZ-AstraZeneca, Shire: drug competition fears knock shares
** AstraZeneca (Swiss: AZN.SW - news) & Shire top UK blue-chip fallers, both down >2 pct, with analysts pointing to concerns over competitive positions of their respective drugs
** Astra hit by worries for sales of diabetes drug Onglyza after Merck (Other OTC: MKGAF - news) 's rival product Januvia shows clean bill of health in heart safety trial, with no increase in hospitalization for heart failure
** Earlier this month, US advisers said Onglyza & Takeda's Nesina had acceptable cardiovascular risk profiles but should carry information labels warning about heart failure risks
** US FDA decision to speed up review of Sanofi (NasdaqGM: GCVRZ - news) 's drug application for a new Fabry disease treatment is cited by one analyst as a possible negative for Shire (Xetra: S7E.DE - news) , given it would be a competitor for the co
** Astra shares hit 2.5-wk lows, while Shire falls to 1-wk lows; GlaxoSmithKline (Other OTC: GLAXF - news) also under pressure, with sentiment in the sector also impacted by weakness from US peers
** Healthcare shares were some of US market's worst performers Monday after negative drug development news, reports criticizing high drug prices & a merger setback (RM (LSE: RM.L - news) : tricia.wright1.thomsonreuters.com@reuters.net; RM: ben.hirschler.thomsonreuters.com@reuters.net)