SAN MATEO, Calif., Jan. 27, 2011 (GLOBE NEWSWIRE) -- Pain Therapeutics, Inc. (Nasdaq:PTIE) today announced that the U.S. Food and Drug Administration (FDA) has accepted a New Drug Application (NDA) resubmission for REMOXY® (controlled-release oxycodone) and has classified it as a Class 2 resubmission.