ABC has pulled executive drama Big Shots off the air with immediate effect.

Three episodes of the show will go unaired, having been replaced on the network's schedule by repeats of Private Practice.

The show, which starred Michael Vartan, Dylan McDermott, Joshua Malina and Christopher Titus as competitive but friendly chief executives, dropped below the 6m viewer mark in its most recent outing despite a prime position after Grey's Anatomy on Thursday nights.