Trastuzumab Deruxtecan in Patients With HER2-Mutant Metastatic Non–Small-Cell Lung Cancer: Primary Results From the Randomized, Phase II DESTINY-Lung02 Trial
Preliminary results of DESTINY-Lung02 show strong efficacy with trastuzumab deruxtecan (T-DXd). Overall response rate (ORR) was about 50%, with duration of response of 16.8 months. This is now FDA-approved and is an available therapy for patients with ERBB2 mutations after 1st line platinum-based chemo +/- immunotherapy. This is preferred over traditional trastuzumab or afatinib. Interestingly, some responses were seen in the ERBB2-negative patients who had over-expression by IHC. Please continue to sequence your patients and enroll in targeted therapy trials.