In re Actiq Sales and Marketing Practices Litigation. Counsel for Cephalon Inc., a subsidiary of Teva Pharmaceutical Industries Ltd., retained Cornerstone Research to analyze class certification and damages issues relating to the alleged off-label marketing of Actiq, a painkiller approved for the management of breakthrough cancer pain. A purported class of third-party payers (TPPs) claimed that Cephalon unjustly enriched itself by marketing Actiq for non-approved indications in order to increase prescription sales, and that they were damaged by Cephalon's actions.

what were the key claims made by the purported class of third-party payers (TPPs) against Cephalon??