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Gene therapy for unresectable hepatocellular carcinoma using recombinant human adenovirus type 5

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The objective of this study was to assess the clinical efficacy of genetically engineered recombinant human adenovirus type 5 (rhAd5) plus transcatheter arterial chemoembolization in patients with unresectable hepatocellular carcinoma (HCC). Data from two groups of patients with unresectable HCC were retrospectively reviewed. One group included 149 patients treated with rhAd5 injection, and the other included 150 control patients without gene therapy. Differences in short-term treatment effectiveness and adverse events were recorded and compared between the two groups. Our results indicated that for patients with higher tumor staging in the treatment group, the overall response rate and the disease control rate were higher than those in the control group, but not statistically significant (P > 0.05). The total progression free survival (PFS) and overall survival (OS) were significantly longer in the treatment group than the control group (240 vs. 196 days, P < 0.05; and 1,526 vs. 1,236 days, P = 0.000; respectively). The overall incidence rate of treatment-related adverse effects was similar (P > 0.05). No serious complications were observed. In conclusion, this study suggests that rhAd5 is a safe, effective gene therapy that prolongs the PFS and OS time of patients with unresectable HCC.

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We express our thanks to the research staff at the collaborating centers for their outstanding work and dedication.

Conflict of interest

All authors have reviewed the final version of the manuscript and approve it for publication. This manuscript has not been published in whole or in part nor is it being considered for publication before by myself, any co-author or by others. The authors have no conflicts of interest to declare.

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Correspondence to Peihong Wu.

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Jun Dong and Wang Li have contributed equally to this work.

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Dong, J., Li, W., Dong, A. et al. Gene therapy for unresectable hepatocellular carcinoma using recombinant human adenovirus type 5. Med Oncol 31, 95 (2014).

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