Device, system, method of coating an expandable member is provided. The method comprises providing an expandable member with a plurality of folds defined therein, the expandable member having a folded configuration and a fully expanded configuration at a rated nominal pressure. The expandable member is inflated to an initial pressure of from 10% to about 300% of nominal pressure. A therapeutic agent is disposed on at least a portion of the expandable member. The expandable member is partially deflated to an intermediate pressure by withdrawing an amount of inflation medium from the expandable member, and by applying an external force to the expandable member.