BI 1831169 is a recombinant live-attenuated Vesicular Stomatitis Virus (rVSV), modified to replace the VSV-G glycoprotein with the Lymphocytic Choriomeningitis Virus glycoprotein in order to minimize the potential of neurotoxicity for humans and skin disease in animals.
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.