News Corp executive James Murdoch, under pressure from a phone-hacking scandal at the News of the World tabloid, is to quit the board of drug maker GlaxoSmithKline to spend more time on his media roles. “James Murdoch has decided to stand down from the board with effect from this year’s AGM (in May),” GSK Chairman Christopher Gent said in a statement, as Britain’s biggest pharmaceutical company announced a raft of other changes to its board that would take place at a later date. GSK said Crispin Davis, Robert Wilson and Larry Culp would also be replaced on the board in 2013.