2 Information about trastuzumab emtansine
2.3 Trastuzumab emtansine costs £1,641.01 per 100‑mg vial and £2,625.62 per 160‑mg vial (powder for solution for infusion; excluding VAT; British national formulary online, accessed March 2020). The company has a commercial arrangement. This makes trastuzumab emtansine available to the NHS with a discount. The size of the discount is commercial in confidence. It is the company's responsibility to let relevant NHS organisations know details of the discount.