1514P Anti-tumor effects of the novel KIT mutant inhibitor M4205 in gastrointestinal stromal tumor (GIST) xenograft models. - De Sutter, L.; Wozniak, A.; Verreet, J.; Vanleeuw, U.; De Cock, L.; Linde, N.; Drechsler, C.; Esdar, C.; Sciot, R.; Schoeffski, P. (Annals of Oncology, 2022)