Safety and Efficacy of TACE + Lenvatinib in Treating Advanced Hepatocellular Carcinoma: A Systematic Review and Meta- analysis.

Background and aims: To compare the efficacy and safety of transarterial chemoembolization (TACE) + lenvatinib (TACE+L) versus lenvatinib (L) monotherapy in the treatment of advanced hepatocellular carcinoma by a meta-analysis.

Methods: PubMed, Embase, the Cochrane Library, CNKI, VIP e-Journals Database, and Wanfang Data were systematically searched to collate literature comparing TACE+L with L alone for the treatment of advanced liver cancer. The literature search, quality assessment, and data extraction were performed independently by two reviewers. The Stata 16 software package was used to process and analyze the data. We assessed heterogeneity using both I2 and the p-value, performed a publication bias assessment, and conducted a sensitivity analysis.

Results: Five studies were finally included, including one randomized controlled study and four retrospective studies; these involved a total of 1,167 patients, including 523 patients in the TACE+L combination group and 644 patients in the L monotherapy group. In this meta-analysis, the TACE+L group showed a significantly better objective response rate (ORR) (OR=2.54, 95%CI: 1.34 - 4.80) and disease control rate (DCR) compared to the L monotherapy group (OR=2.68, 95%CI: 1.75 - 4.08). The combined group had significantly improved progression-free survival (PFS) (HR=0.47, 95%CI: 0.40 - 0.56) and overall survival (OS) (HR=0.48, 95%CI: 0.39-0.59). In addition, there was no significant difference found in the overall adverse events of any grade between the two groups (OR=1.13, 95%CI: 0.99 - 1.29).

Conclusions: Compared to L alone, TACE+L treatment resulted in better tumor response, better long-term survival, and was accompanied by controllable adverse events.