ctDNA-driven Adaptive Proton Craniospinal Irradiation in Non-Small Cell Lung Cancer With Leptomeningeal Metastasis After Resistance to Third-Generation TKIs in the Consolidation Phase

​ Conditions: Leptomeningeal Metastasis From Lung Cancer Interventions: Radiation: proton craniospinal irradiation; Drug: Intrathecal pemetrexed Sponsors: Shuanghu Yuan Recruiting Conditions: Leptomeningeal Metastasis From Lung Cancer Interventions: Radiation: proton...