1372 TriTCE Co-Stim: a novel trispecific T cell engager platform, with integrated CD28 costimulation, engineered to widen the therapeutic window for treatment of poorly infiltrated... by Maya Poffenberger, Nichole Escalante, Diego Perez Escanda, Nina Weisser, Thomas Spreter von Kreudenstein, Lisa Newhook, Purva Bhojane, Peter Repenning, Desmond Lau, Polly Shao, Alec Robinson, Kesha Patel, Alexandra Livernois, Chayne L Piscitelli, Nicole Afacan

1396 TriTCE CPI: a novel trispecifc T cell engager platform with integrated PD-1/PD-L1 checkpoint inhibition engineered for the treatment of immunosuppressed tumors by Matteo Zago, Yun Peng, Meghan M Verstraete, Maya Poffenberger, Veronica Luu, Brenda Ma, Nichole Escalante, Janessa Li, Diego Perez Escanda, Siran Cao, Edward Meier, Sifa Arrafi, Anna Von Rossum, Genevieve Desjardins, Nina Weisser, Thomas Spreter von Kreudenstein