WESTMINSTER, Colo.--(BUSINESS WIRE)--Allos Therapeutics, Inc. (NASDAQ:ALTH) today announced that the U.S. Food and Drug Administration (FDA) has accepted for filing the Company’s New Drug Application (NDA) for pralatrexate for the treatment of patients with relapsed or refractory peripheral T-cell lymphoma (PTCL). The Company also announced that the FDA has granted the NDA priority review status and established a Prescription Drug User Fee Act (PDUFA) date of September 24, 2009 for a decision regarding approval of the NDA. Priority review designation is assigned to drugs that have the potential to provide a significant improvement compared to marketed products or provide a safe and effective therapy where no satisfactory therapy exists.