It is estimated that 90% of the cancer related deaths are due to metastases, the spread of cancer to other organs and tissues. Metastases are extremely difficult to treat due to their number, size and location. Oncolytic viruses, viruses modified to specifically kill tumor cells, are promising for the treatment of local tumors, but fail to reach distant metastatic sites. ExoVectory can package oncolytic virus genomes in exosomes, tiny lipid vesicle secreted by cells that can travel to all corners of your body. Our product allows for systemic administration of oncolytic virus therapy, multiple rounds of treatment without viral clearance, wide spread delivery, opening up the use of oncolytic virus therapy for metastatic cancers.