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.
The study involves a replication-incompetent adeno-associated virus, AAV9, lacking all AAV viral genes and encoding for the human Progranulin (GRN) gene
Genes of the human Parainfluenza virus fusion (F) and hemagglutinin-neuraminidase (HN) proteins; gene of the human Respiratory syncitial virus fusion protein (RSV F).