LBA72 Unraveling the mechanism of action and resistance to trastuzumab deruxtecan (T-DXd): Biomarker analyses from patients from DAISY trial

M.F. Mosele, Amélie Lusque, Véronique Dièras, Élise Deluche, Agnès Ducoulombier, Barbara Pistilli, T. Bachelot, F. Viret, C. Lévy, Y.C. Pradat, Dien Tran, Nathalie Droin, Michihiko Kobayashi, T. Kakewaga, Marc Deloger, Bastien Job, Marta Jimenez, M. Lacroix-Triki, Fabrice André