Osimertinib Combined with Systemic Chemotherapy for EGFR Mutant, T790M-Negative, Non-Small Cell Lung Cancer Patients Who Develop Leptomeningeal Metastases with Extracranial Progression to Prior EGFR TKI.

Abstract excerpt

Leptomeningeal metastasis (LM) is a rare but fatal clinical condition with a short survival time. The incidence of LM from epidermal growth factor receptor mutant (EGFRm) non-small cell lung cancer (NSCLC) has increased due to the limited efficacy of first- or second-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) in the central nervous system (CNS). Osimertinib is a...

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