A group of workers’ compensation insurers that alleged Cephalon took advantage of the laws providing for full prescription coverage to those injured on the job had their fraud claims dismissed Monday in federal court in Philadelphia.

U.S. District Judge Mary A. McLaughlin of the Eastern District of Pennsylvania ruled that plaintiffs Travelers Indemnity Co., St. Paul Fire and Marine Insurance Co. and the Standard Fire Insurance Co. showed no causal connection between any alleged off-label marketing by Cephalon and any damages the insurers allegedly faced.