(December 9, 2015, 11:56 AM EST) -- PHILADELPHIA — Efforts by a putative end-payer antitrust and consumer protection class to revive their claims against two drug manufacturers were rejected Dec. 8 by a Pennsylvania federal judge (In re: Niaspan Antitrust Litigation [All Actions], MDL No. 2460, No. 13-md-2460; E.D. Pa.; 2015 U.S. Dist. LEXIS 164021)....