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Crizotinib vs platinum-based chemotherapy as first-line treatment for advanced non-small cell lung cancer with different ROS1 fusion variants.
Cancer Medicine ( IF 2.9 ) Pub Date : 2020-03-13 , DOI: 10.1002/cam4.2984 Haiyan Xu 1 , Quan Zhang 2 , Li Liang 3 , Junling Li 4 , Zhefeng Liu 5 , Weihua Li 6 , Lu Yang 4 , Guangjian Yang 4 , Fei Xu 4 , Jianming Ying 6 , Shucai Zhang 2 , Yan Wang 4
Cancer Medicine ( IF 2.9 ) Pub Date : 2020-03-13 , DOI: 10.1002/cam4.2984 Haiyan Xu 1 , Quan Zhang 2 , Li Liang 3 , Junling Li 4 , Zhefeng Liu 5 , Weihua Li 6 , Lu Yang 4 , Guangjian Yang 4 , Fei Xu 4 , Jianming Ying 6 , Shucai Zhang 2 , Yan Wang 4
Affiliation
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BACKGROUND
ROS1 gene fusion represents a specific subtype of non-small cell lung cancer (NSCLC). Crizotinib is recommended for ROS1-positive NSCLC due to its favorable outcome in published clinical trials. However, due to the low incidence of ROS1-positive NSCLC, there is limited information on real-world clinical outcomes in patients treated with either crizotinib or platinum-based doublet chemotherapy.
METHODS
Outcomes were recorded in 102 patients with stage Ⅲb or Ⅳ NSCLC who were treated at four Chinese hospitals between April, 2010 and June, 2019.
RESULTS
Of the 102 patients followed, 71.6% were females, 81.4% were non-smokers, and 98.0% had adenocarcinoma. First-line treatment with crizotinib achieved a significantly longer median progression-free survival (PFS) compared with platinum-based chemotherapy (14.9 months vs 8.5 months, respectively; P < .001). Next-generation sequencing (NGS) identified 61 patients who had ROS1 fusion variants, including CD74 (n = 33) and non-CD74 (n = 28) variants. In patients harboring CD74 fusion variants, the median PFS with first-line crizotinib treatment was significantly longer than in those harboring non-CD74 fusion variants (20.1 months vs 12.0 months, respectively; P = .046). However, in patients treated with platinum-based chemotherapy, there was no significant difference in PFS between the CD74 and non-CD74 variant groups (8.6 months vs 4.3 months, respectively; P = .115). Overall survival (OS) was not reached.
CONCLUSIONS
First-line therapy with crizotinib is more beneficial than platinum-based chemotherapy in patients with advanced NSCLC with different ROS1 fusion variants. Patients harboring CD74 fusion variants appear to respond better to crizotinib.
更新日期：2020-03-13
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