
Seven Indian pharmaceutical companies are developing generic versions of Merck's cancer drug Keytruda, with availability expected within two years after patent expiration in June 2028. Each 200mg dose currently costs over Rs 3 lakh. Biosimilars could reduce prices by up to 70%. Companies including Sun, Hetero, and Intas are conducting trials. The government launched Bio Pharma SHAKTI, a Rs 10,000-crore scheme supporting biosimilar development for cancer and autoimmune drugs.