PHILADELPHIA, June 21, 2011 (GLOBE NEWSWIRE) -- Hemispherx Biopharma, Inc. (NYSE Amex:HEB) (the "Company" or "Hemispherx") today announced that it has entered into a Material Transfer and Research Agreement with the University of Pennsylvania School of Medicine to provide Ampligen® [rintatolimod; poly(I)·poly(C12,U)], an experimental therapeutic, for testing as a vaccine adjuvant in a human clinical study in ovarian cancer.
