The present study marks an important milestone towards a potential application of P16_37-63 as therapeutic agent in the management of patients with advanced HPV- and p16INK4a -positive cervical, vulvar, vaginal, penile, anal or head and neck cancer. Long-term goal of this approach is to develop novel tools for the palliative and/or adjuvant therapy of patients with advanced advanced HPV- and p16INK4a -positive tumors.