770 ADU-1604, a novel CTLA-4 blocking antibody modulates pharmacodynamic markers in PD1 relapse/refractory melanoma patients - Caroline Robert; Ivan Marquez-Rodas; Michele Maio; Vanna Chiarion-Sileni; Piotr Rutkowski; Hans Van Eenennaam; Julien Villaudy; Jessica Kundapur; Ana Maria Arance; Alexander Eggermont; Guillemo De Velasco Oria de Rueda; Laura Lassouw-Polman (Journal for ImmunoTherapy of Cancer, 2023)