A Study to Test the Effectiveness of Virulizin® Given in Combination With Standard Chemotherapy for Pancreatic Cancer

Virulizin is an immunotherapy drug preparation that is thought to stimulate the patient's immune system, which in turn may slow the growth of tumors. It is presented in vials as a sterile preparation for IM injection. The purpose of the trial is to investigate if Virulizin in combination with gemcitabine provides better efficacy than gemcitabine alone (with placebo) against pancreatic cancer.Virulizin® efficacy will continue to be assessed if chemotherapy is changed to 5-Fluorouracil.