By: Kyle Doherty
Key Takeaways Frontline intensification in TP53-comutated EGFR L858R disease gains support from TOP, FLAURA2, and MARIPOSA, showing meaningful PFS benefit versus osimertinib, with OS signals still immature. Case-based consensus favored combination systemic therapy for symptomatic bilateral brain metastases, with regimen selection split between osimertinib–platinum/pemetrexed and amivantamab–lazertinib. Post-progression sequencing after FLAURA2-like therapy includes platinum–pemetrexed rechallenge (when pemetrexed-free interval is prolonged), dato-DXd, or amivantamab plus chemotherapy, influenced by CNS stability. ADC enthusiasm remains divided given toxicity resembling or exceeding chemotherapy and uncertain target relevance post-EGFR, while overlapping deruxtecan payloads can restrict subsequent ADC trial access. Practical unmet needs include minimizing “time toxicity,” improving routine repeat biopsy at progression to capture actionable resistance (e.g., BRAF fusions), and establishing predictive biomarkers to guide regimen choice and ADC sequencing. SHOW MORE












