Anirudh Prahallad, Andreas Weiss, Hans Voshol, Grainne Kerr, Kathleen Sprouffske, Tina Yuan, David Ruddy, Morgane Meistertzheim, Malika Kazic-Legueux, Tina Kottarathil, Michelle Piquet, Yichen Cao, Laetitia Martinuzzi-Duboc, Alexandra Buhles, Flavia Adler, Salvatore Mannino, Luca Tordella, Laurent Sansregret, Sauveur-Michel Maira, Diana Graus Porta, Carmine Fedele, Saskia M Brachmann
UNLABELLED: Although KRASG12C inhibitors show clinical activity in patients with KRAS G12C mutated non-small cell lung cancer (NSCLC) and other solid tumor malignancies, response is limited by multiple mechanisms of resistance. The KRASG12C inhibitor JDQ443 shows enhanced preclinical antitumor activity combined with the SHP2 inhibitor TNO155, and the combination is currently under clinical evaluation. To identify rational combination strategies that could help overcome or prevent some types of resistance, we evaluated the duration of tumor responses to JDQ443 ± TNO155, alone or combined with the PI3Kα inhibitor alpelisib and/or the cyclin-dependent kinase 4/6 inhibitor ribociclib, in xenograft models derived from a KRASG12C-mutant NSCLC line and investigated the genetic mechanisms associated with loss of response to combined KRASG12C/SHP2 inhibition...
December 15, 2023: Cancer Research