期刊
LUNG CANCER
卷 80, 期 1, 页码 102-105出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.lungcan.2012.12.024
关键词
Lung cancer; Leptomeningeal metastases; Erlotinib; EGFR; Pulsatile dosing; TKI
A considerable number of patients with epidermal growth factor receptor (EGFR)-mutated non-small-cell lung cancer (NSCLC) develop leptomeningeal metastases. Leptomeningeal metastases are associated with deterioration of clinical symptoms and poor survival. Traditionally, treatment of metastases in the central nervous system consists of radiotherapy and less frequently, surgery. The role of systemic therapy is limited due to the blood-brain barrier inhibiting pharmacological doses to be reached in the central nervous system. Several case reports have described high-dose, pulsatile tyrosine kinase inhibitors as an effective treatment of leptomeningeal metastases, based on the hypothesis that higher concentrations in the cerebrospinal fluid can be reached by higher systemic concentrations. Here, we describe two patients with EGFR-mutated non-small cell lung cancer, with both clinical and radiological response to this high-dose, pulsatile regimen. Interestingly, one patient showed a remarkable response of intrathoracic response as well. (C) 2013 Elsevier Ireland Ltd. All rights reserved.
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