Fei Qi1, Xingsheng Hu1, Yutao Liu1, Zhijie Wang1, Jianchun Duan1, Jie Wang1, Mei Dong1. 1. Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China.
Abstract
OBJECTIVE: To evaluate the efficacy and safety profile of first-line bevacizumab (Bev)-containing pemetrexed-platinum chemotherapy in a real-world Chinese cohort with advanced non-squamous non-small cell lung cancer (NS-NSCLC). METHODS: A total of 415 eligible patients with NS-NSCLC who received first-line pemetrexed-platinum chemotherapy at National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College between February 2010 and September 2017 were reviewed retrospectively: 309 Bev(-) and 106 Bev(+) cases. Bev was administered at 7.5 mg/kg every 3 weeks in the Bev(+) group. To reduce the risk of a selection bias, a propensity score-matching (PSM) was conducted and 105 pairs of Bev(-) and Bev(+) cases were identified. RESULTS: The median duration of follow-up was 15.8 months. The median progression-free survival (PFS) was prolonged significantly in the Bev(+) group than in the Bev(-) group in overall (9.8vs. 7.8 months, P=0.006) and PSM pairs (9.8 vs. 6.6 months, P<0.001). Moreover, patients receiving maintenance therapy with pemetrexed plus Bev had longer PFS than those interrupted after induction chemotherapy, or those receiving mono-maintenance with pemetrexed (12.3vs. 4.8 vs. 8.6 months; P<0.001). Multivariate analyses revealed Bev to be one of the favorable prognostic factors for PFS, along with the predictor of maintenance therapy. CONCLUSIONS: First-line induction and maintenance therapy with Bev (7.5 mg/kg every 3 weeks) combined with pemetrexed-platinum chemotherapy was efficacious and superior to non-Bev chemotherapy in Chinese patients with advanced NS-NSCLC.
OBJECTIVE: To evaluate the efficacy and safety profile of first-line bevacizumab (Bev)-containing pemetrexed-platinum chemotherapy in a real-world Chinese cohort with advanced non-squamous non-small cell lung cancer (NS-NSCLC). METHODS: A total of 415 eligible patients with NS-NSCLC who received first-line pemetrexed-platinum chemotherapy at National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College between February 2010 and September 2017 were reviewed retrospectively: 309 Bev(-) and 106 Bev(+) cases. Bev was administered at 7.5 mg/kg every 3 weeks in the Bev(+) group. To reduce the risk of a selection bias, a propensity score-matching (PSM) was conducted and 105 pairs of Bev(-) and Bev(+) cases were identified. RESULTS: The median duration of follow-up was 15.8 months. The median progression-free survival (PFS) was prolonged significantly in the Bev(+) group than in the Bev(-) group in overall (9.8vs. 7.8 months, P=0.006) and PSM pairs (9.8 vs. 6.6 months, P<0.001). Moreover, patients receiving maintenance therapy with pemetrexed plus Bev had longer PFS than those interrupted after induction chemotherapy, or those receiving mono-maintenance with pemetrexed (12.3vs. 4.8 vs. 8.6 months; P<0.001). Multivariate analyses revealed Bev to be one of the favorable prognostic factors for PFS, along with the predictor of maintenance therapy. CONCLUSIONS: First-line induction and maintenance therapy with Bev (7.5 mg/kg every 3 weeks) combined with pemetrexed-platinum chemotherapy was efficacious and superior to non-Bev chemotherapy in Chinese patients with advanced NS-NSCLC.
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