WESTMINSTER, Colo.--(BUSINESS WIRE)--Allos Therapeutics, Inc. (Nasdaq: ALTH) announced today that the European Commission (EC) has granted orphan medicinal product designation for pralatrexate for the treatment of Hodgkin lymphoma (HL). The Company is currently investigating pralatrexate in a number of ongoing studies, including a Phase 2 clinical study in patients with relapsed or refractory non-Hodgkin lymphoma or Hodgkin lymphoma. The EC previously granted orphan designations for pralatrexate for the treatment of patients with peripheral T-cell lymphoma (PTCL), cutaneous T-cell lymphoma (CTCL) and non-papillary transitional cell carcinoma (TCC) of the urinary bladder, a form of bladder cancer.