VSV-GP128 is a recombinant live-attenuated Vesicular Stomatitis Virus (VSV), modified to minimize the potential of neurotoxicity for humans and skin disease in animals, and engineered to contain cancer antigens, which help it induce an immune response against colorectal tumour cells.
The study involves a replication-incompetent adeno-associated virus, AAV9, lacking all AAV viral genes and encoding for the human Progranulin (GRN) gene