Iron Man co-writers Art Marcum and Matt Holloway are set to write the big-screen adaptation of Robert Ludlum's The Sigma Protocol for Universal.

According to The Hollywood Reporter, The Sigma Protocol centers on an American economist who becomes the target of professional assassins. When a U.S. intelligence agent investigating his case finds herself discredited, the two end up on the run and uncover a multinational conspiracy manipulating the global economy and world events.

The book was one of the last books written by Ludlum, who is the creator of the studio's ultra-successful Bourne franchise.

The project was set up at the studio several years ago, and at one point had Jonathan Jakubowicz (Secuestro Express) on board to write and direct.

No production date has been set.