NORTH BRUNSWICK, N.J.--(BUSINESS WIRE)--Advaxis, Inc., (OTCBB: ADXS), the live, attenuated Listeria monocytogenes (Listeria) immunotherapy company and the University of Pennsylvania School of Veterinary Medicine have signed a veterinary clinical research study contract to treat osteosarcoma in companion dogs using Advaxis’ technology. The studies will be led by Assistant Professor Dr. Nicola Mason.