Effects of Tenofovir Combined with Recombinant Human Interferon α-2b on Negative Conversion Rate, Liver Function, Immune Status, and Drug Safety in Patients with Chronic Hepatitis B: A Systematic Review and Meta-Analysis

Objective. To systematically evaluate the clinical value of tenofovir combined with recombinant human interferon α-2b in the treatment of chronic hepatitis B and to provide evidence-based medicine for its popularization and use. Methods. The randomized controlled trials (RCTs) of tenofovir combined with recombinant human interferon α-2b in the online database of PubMed, EMBASE, ScienceDirect, Cochrane Library, China knowledge Network (CNKI), China VIP database, Wanfang database, and China Biomedical Literature Database (CBM) were searched. The data included in this study were extracted by two independent researchers. After extracting the data of the study, the Cochrane manual 5.1.0 standard was used to evaluate the bias risk of all the literature included in this study. RevMan5.4 statistical software was used to analyze the collected data by meta. Results. Entecavir combined with recombinant human interferon α-2b can inhibit the activity of HBV polymerase and improve the inflammatory response of the liver. Recombinant human interferon α-2b can regulate immune function by inducing T cell differentiation and maturation and enhancing the production of cytokines. The systematic evaluation showed that entecavir combined with recombinant human interferon α-2b had higher serum HBeAg negative conversion rate, higher drug safety compared with entecavir alone, and improved liver function and immune status. Conclusion. Tenofovir combined with recombinant human interferon alpha-2b has a high serum HBeAg negative rate and safety profile for the treatment of chronic hepatitis B. The combination treatment can improve liver function and immune status in patients, but more studies with higher methodological quality and longer duration of intervention are needed for further validation.