798 Safety, tolerability, and immunogenicity of mRNA-4157 in combination with pembrolizumab in subjects with unresectable solid tumors (KEYNOTE-603): an update by Aaron Scott, Manish Patel, Julie Bauman, Jeffrey Clarke, Howard Burris, Justin Gainor, Martin Gutierrez, Daniel Cho, Ricklie Julian, Pamela Cohen, Joshua Frederick, Celine Robert-Tissot, Honghong Zhou, Kinjal Mody, Karen Keating, Robert Meehan

1530 T-cell responses to individualized neoantigen therapy (INT) mRNA-4157 (V940) as monotherapy or in combination with pembrolizumab by Wei Zheng, Jing Sun, Jeffrey Weber, Manish R Patel, Brandon Coder, Igor Feldman, Justin F Gainor, Jessica L Geiger, Martin Gutierrez, Joshua Frederick, Celine Robert-Tissot, Robert Meehan, Jack Pollard, Lakshmi Srinivasan, Michelle Brown, Kedar Kirtane, Julie E Bauman, Praveen Aanur, Jeffrey M Clarke, Ricklie A Julian, Aaron J Scott, Moomal Tasneem, Lauren Gerbereux, Andressa Laino, Peijie Hou, Vasudha Sehgal, Hikmat N Daghestani, Howard A Burris