1. Characteristics and outcomes of ALK+ non-small cell lung cancer patients in Korea.
- Author
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Lim SH, Yoh KA, Lee JS, Ahn MJ, Kim YJ, Kim SH, Zhang J, Patel D, Swallow E, Kageleiry A, Galebach P, Lee D, Stein K, Degun R, and Park K
- Subjects
- Aged, Anaplastic Lymphoma Kinase, Carcinoma, Non-Small-Cell Lung enzymology, Carcinoma, Non-Small-Cell Lung pathology, Female, Humans, Lung Neoplasms enzymology, Lung Neoplasms pathology, Middle Aged, Receptor Protein-Tyrosine Kinases antagonists & inhibitors, Republic of Korea, Retrospective Studies, Treatment Outcome, Carcinoma, Non-Small-Cell Lung therapy, Lung Neoplasms therapy, Protein Kinase Inhibitors therapeutic use, Receptor Protein-Tyrosine Kinases metabolism
- Abstract
Aim: This study aimed to describe characteristics, treatment patterns and survival among Korean patients diagnosed with locally advanced or metastatic anaplastic lymphoma kinase (ALK)+ non-small cell lung cancer (NSCLC)., Methods: A retrospective patient chart review was conducted in major cancer centers in Korea in 2014-2015. Participating physicians reviewed patient charts and reported characteristics, treatment patterns, clinician-defined progression-free survival (PFS) and overall survival (OS) of ALK+ locally advanced or metastatic NSCLC patients. PFS and OS were estimated using Kaplan-Meier analysis., Results: Physicians reported on 55 ALK+ NSCLC patients. Median age at locally advanced or metastatic NSCLC diagnosis was 60 years. Most patients (82%) received initial chemotherapy; 13% received an ALK inhibitor in the first line; 62% received an ALK inhibitor by the end of follow-up. Of the 30 patients who received crizotinib, 83% discontinued and 13% died during crizotinib therapy. Median PFS on crizotinib was 6.7 months. Of those who discontinued, 32% switched to chemotherapy, 16% switched to a different ALK inhibitor and 52% received no further therapy. After discontinuing crizotinib, median OS was 6.0 months overall, and 3.4 months among patients who did not receive a second-generation ALK inhibitor., Conclusion: In this study of locally advanced or metastatic ALK+ NSCLC patients in Korea, roughly one-third did not receive an ALK inhibitor. Among patients who discontinued crizotinib, over half received no further antineoplastic therapy and OS was poor, particularly among patients without second-generation ALK inhibitor use. These findings suggest a need for greater access to effective treatments following crizotinib discontinuation for ALK+ NSCLC patients in Korea., (© 2017 John Wiley & Sons Australia, Ltd.)
- Published
- 2017
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