MAGEA3 and melanoma: Most importantly, the use of a melanoma-associated antigen 3 (MAGE-A3)-expressing Maraba virus as an oncolytic booster vaccine has entered four phase 1 and 2 human clinical trials to treat patients with advanced and/or metastatic MAGE-A3-expressing solid tumours, including melanomas, and in combination with a programmed cell death-1 receptor-specific antibody (i.e.