Abstract
Anlotinib is one of the tyrosine kinase inhibitors that exhibits promising anti-tumor effect in several cancers. However, the efficacy and safety of anlotinib in pre-treated small cell lung cancer (SCLC) is not well determined. Herein, we performed this meta-analysis to summarize the effectiveness and safety of anlotinib in the treatment of pre-treated SCLC. The databases, such as PubMed and Embase, were searched to identify eligible studies. Clinical studies reporting the efficacy and safety of anlotinib in the treatment of patients with pre-treated SCLC were included. The main endpoints were overall survival (OS), progression-free survival (PFS), overall response rate (ORR), disease control rate (DCR), and adverse events. The Review Manager 5.4 and STATA 14 statistical software were used to perform the meta-analysis. A total of 13 studies were included, involving 779 patients with SCLC. The ORR and DCR for the anlotinib group were 0.21 (95%CI: 0.12- 0.31; p < 0.01) and 0.76 (95%CI: 0.69- 0.83; p < 0.01), respectively. The summarized PFS and OS for the anlotinib group were 3.46 (95%CI: 2.68-4.24), and 6.86 (95%CI: 5.79-7.93) months, respectively. Compared with control group, the PFS in the anlotinib group was significantly longer standard mean difference(SMD)=0.76, 95%CI: 0.11, 1.41; p = 0.02). In terms of safety, the most common grade 3 or higher adverse events in the anlotinib group were hypertension (9%; 95%CI: 6%-13%), hand-foot syndrome (6%; 95%CI: 2%-9%), and fatigue (4%; 95%CI: 2%-7%). Anlotinib may be associated with favorable efficacy outcomes in pre-treated SCLC patients with acceptable safety.
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