The FDA has approved Ontruzant, the third version of Roche’s cancer drug Herceptin, and the second US biosimilar approval for Samsung Bioepis. The product will be marketed by Merck & Co. Europe approved Ontruzant in November 2017 as a biosimilar to Roche’s Herceptin (trastuzumab), and 14 months on the US Food and Drug Administration (FDA) has given the oncology biologic the regulatory thumbs up. Ontruzant becomes the seventeenth biosimilar to be approved in the US, and the first of 2019.…