Drug : Participants should take lazertinib 240 mg (80 mg, 3 tablets) once a day at the same time as possible, regardless of meals. For chemotherapy, administer Pemetrexed 500mg/m2 on the 1st day every

Phase II Trial of Lazertinib and Pemetrexed/Carboplatin Combination in Patients with Epidermal Growth Factor Receptor Sensitizing Mutation Positive, Metastatic Non-Small Cell Lung Cancer with Asymptomatic or Mild Symptomatic Brain Metastases After Failure of Osimertinib

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