First-in-human trial in HLA-A*02 positive patients (pts) with advanced cancers expressing MAGE-A4 antigen....18 pts (10 male, 8 female) were treated with ADP-A2M4CD8... Of the 15 evaluable pts, 13 had evidence of disease control and there were RECIST responses in several solid tumor types....Emerging efficacy data remain encouraging with the majority of pts experiencing disease control and RECIST responses in several solid tumor types.