Drugmaker Sanofi to lease massive Cambridge Crossing site

French drug giant Sanofi has confirmed long-rumored plans to lease 900,000 square feet across two buildings at Cambridge Crossing, further cementing the East Cambridge development site as a biotech hub.

Cambridge Crossing will “serve as a consolidated space” for Sanofi, which has several facilities scattered throughout the region, and will house about 2,700 employees, the company said in a statement. Sanofi, currently the largest life sciences employer in Massachusetts, will house research and…