In September 2017, the Malaysian government exercised its right to exploit Gilead's patented drug, Sofosbuvir, used for the treatment of Hepatitis C without Gilead's authorisation. The Malaysian government proceeded with the exercise of its rights despite Gilead's announcement of the extension of its voluntary licensing scheme for the supply of licensed generic Sofosbuvir to Malaysia. This is the second time that Malaysia has exercised its government rights to exploit a patented invention without the authorisation of the rights holder. The first time was in 2003, when the government exercised its rights for the supply of affordable HIV/AIDS drugs patented by GlaxoSmithKline and Bristol-Myers Squibb after failed lengthy price negotiations with the patent owners.