Definition

An off-the-shelf (OTS) individualized vaccine comprised of a modified Vaccinia virus Ankara (MVA) viral vector encoding tumor-specific neoantigens (TSNAs), with potential immunostimulatory and antineoplastic activities. Following administration of the individualized MVA-based vaccine TG4050, the neoantigens are expressed and presented to the immune system, which induces the activation of a specific cytotoxic T-lymphocyte (CTL) immune response against tumor cells expressing the patient-specific neoantigens.