The company also selectively outlicenses limited use of its technology to other companies. Companies licensing ImmunoGen's technology include Amgen, Bayer HealthCare, Biotest, Genentech/Roche, Eli Lilly, Novartis, Sanofi, and Takeda. Roche's Kadcyla (ado-trastuzumab emtansine) utilizes ImmunoGen's ADC technology. It has been approved and launched in a number of countries, including the US, where it is marketed by Genentech, a member of the Roche Group. In October 2015, the company disclosed that Kadcyla had failed to meet its primary endpoint in the Phase II/III GATSBY trial investigating the second line treatment of HER2-positive advanced gastric cancer.
