NEW YORK--(BUSINESS WIRE)--Medidata (NASDAQ:MDSO), the leading global provider of cloud-based solutions for clinical research in life sciences, today announced that Rouven Bergmann is joining the company as Chief Financial Officer effective Monday, May 18, 2015. Bergmann’s financial and operational experience managing a multibillion-dollar software business extends the breadth and depth of Medidata’s leadership team. Medidata also reaffirmed today that there is no change to its 2015 financial g