LEXINGTON, Mass., Aug. 8, 2012 (GLOBE NEWSWIRE) -- Agenus Inc. (Nasdaq:AGEN), a biotechnology company working to develop novel immunology-based treatments for cancers and infectious diseases, today announced the publication of key clinical data from a Phase 1 trial of a Prophage Series vaccine (HSPPC-96; vitespen) to treat patients with recurrent glioblastoma multiforme (GBM).