This OncLive Insights program features Drs. Sandip Patel and Jonathan Riess in an in-depth discussion on current and emerging strategies for managing HER2-mutated non-small cell lung cancer (NSCLC). The experts review the evolving diagnostic landscape, emphasizing the importance of comprehensive molecular testing, both tissue and plasma, to identify HER2 mutations and HER2 IHC 3+ overexpression. They examine the clinical integration of targeted therapies including trastuzumab deruxtecan (T-DXd), zongertinib, and the recently reported sevabertinib, highlighting their efficacy, safety profiles, and roles across lines of therapy. Key challenges are addressed, such as CNS metastases, sequencing uncertainty, toxicity monitoring, and the need for resistance-based treatment strategies. The discussion concludes with a forward-looking perspective on next-generation HER2 inhibitors, ADC development, CNS-penetrant agents, and opportunities to advance care through clinical trials and real-world evidence.