551 Pegasus Skin, a study of SAR444245 (THOR-707, a pegylated recombinant non-alpha IL2) with cemiplimab for the treatment of participants with advanced unresectable or metastatic... by Paolo A Ascierto, Giovanni Abbadessa, Brigitte Demers, PARK John, Adyb Baakili, Rao Saleem, Alice Gosselin