Sanofi is making a big bet on blood disorders with the $11.6bn acquisition of Bioverativ Inc. The acquisition, announced Jan. 22, will position Sanofi as a leader in hemophilia, but the competition in the category is fierce and the prospect of gene therapy sits just on the horizon, raising questions about the steep premium Sanofi has paid.
In addition to two marketed drugs that are on track to generate more than $1bn in combined revenues in 2017,...








