Amgen Mum On Repatha Sales; Outcomes Data Needed To Sway US Payers

Amgen Inc.'s 2015 revenue of $21.66bn, up 8% from the prior year, met analyst consensus expectations, but one of the biggest questions of all was left unanswered: How many millions of dollars in sales of the PCSK9 inhibitor Repatha (evolocumab) has the company generated so far?