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Background  This study was designed to assess the clinical efficacy and toxicity of apatinib (YN968D1) as third or subsequent‐line treatment for stage III/IV non‐small cell lung cancer (NSCLC).    Methods  A total of 100 patients with advanced NSCLC who were treated with apatinib at a daily dose of 250/425/500 mg at Shandong Cancer Hospital from January 2016 to June 2018 were enrolled in our study. The objective response, disease control, and median progression‐free survival rates were reviewed and evaluated. Univariate and multivariate analyses were performed to determine the prognostic factors. The main adverse events were evaluated per the Common Terminology Criteria for Adverse Events version 4.0.    Results  All patients were assessable for response. No complete responses were observed, 11 patients achieved a partial response, and 56 showed stable disease. The objective response rate was 11.0%, the disease control rate was 67.0%, and the median progression‐free survival was 2.93 months (95% confidence interval 2.07–3.87). In Cox regression analysis, the Eastern Cooperative Oncology Group performance status score (hazard ratio 1.799;  P  < 0.05) and smoking history (hazard ratio 1.958;  P  < 0.05) were predictive indicators for apatinib treatment efficacy. Treatment‐related adverse events were tolerated, predictable, reversible, and controllable.    Conclusion  Apatinib was found to be both effective and safe in advanced NSCLC patients without a genetic driver mutation who experienced progression after two or more lines of chemotherapy treatment.

thoracic cancer

Clinical investigation of the efficacy and toxicity of apatinib (YN968D1) in stage III/IV non‐small cell lung cancer after second‐line chemotherapy treatment: A retrospective study