Risk of hepatocellular carcinoma in chronic hepatitis B: Assessment and modification with current antiviral therapy
George V. Papatheodoridis correspondenceemail
,Henry Lik-Yuen Chan,Bettina E. Hansen,Harry L.A. Janssen,Pietro Lampertico
Open Access Article has an altmetric score of 1
DOI: http://dx.doi.org/10.1016/j.jhep.2015.01.002
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Publication History
Published Online: January 13, 2015Accepted: January 4, 2015Received in revised form: December 22, 2014Received: November 3, 2014
Summary
In the treatment of chronic hepatitis B (CHB), the ultimate goal is preventing hepatitis B virus (HBV)-associated liver disease, including hepatocellular carcinoma (HCC). Recently published studies show that in CHB patients treated with the currently recommended first-line nucleos(t)ide analogs (NAs) entecavir or tenofovir, annual HCC incidences range from 0.01% to 1.4% in non-cirrhotic patients, and from 0.9% to 5.4% in those with cirrhosis. In Asian studies including matched untreated controls, current NA therapy consistently resulted in a significantly lower HCC incidence in patients with cirrhosis, amounting to an overall HCC risk reduction of ∼30%; in non-cirrhotic patients, HCC risk reduction was overall ∼80%, but this was only observed in some studies. For patients of Caucasian origin, no appropriate comparative studies are available to date to evaluate the impact of NA treatment on HCC. Achievement of a virologic response under current NA therapy was associated with a lower HCC risk in Asian, but not Caucasian studies. Studies comparing entecavir or tenofovir with older NAs generally found no difference in HCC risk reduction between agents, except for one study which used no rescue therapy in patients developing lamivudine resistance. Overall, these data indicate that with the current, potent NAs, HCC risk can be reduced but not eliminated, probably due to risk factors that are not amenable to change by antiviral therapy, or events that may have taken place before treatment initiation. Validated pre- and on-therapy HCC risk calculators that inform the best practice for HCC surveillance and facilitate patient counseling would be of great practical value.
Abbreviations:
CHB (chronic hepatitis B), HCC (hepatocellular carcinoma), HBV (hepatitis B virus), BCP (basal core promoter), NA (nucleos(t)ide analog), HR (hazard ratio), PS (propensity score), REACH-B (Risk Estimation for Hepatocellular Carcinoma in Chronic Hepatitis B), REVEAL (Risk Evaluation of Viral Load Elevation and Associated Liver Disease), CU-HCC (Chinese University – Hepatocellular Carcinoma score), GAG-HCC (Guide with Age, Gender, HBV DNA, Core promoter mutations and Cirrhosis), ALT (alanine aminotransferase), ADV (adefovir), comb (combination therapy), comp (compensated), ETV (entecavir), LdT (telbivudine), LVD (lamivudine), NA (not assessed), TDF (tenofovir), tx (treatment), cirr (cirrhosis), decomp (decompensated), exp. (experienced), NR (not reported), RR (risk reduction), VR (virologic response), A (Asian), C (Caucasian), yr (year) 作者: StephenW 时间: 2015-3-17 07:49
Gut. 2014 Dec;63(12):1943-50. doi: 10.1136/gutjnl-2013-306409. Epub 2014 Mar 10.
Patients with chronic hepatitis B treated with oral antiviral therapy retain a higher risk for HCC compared with patients with inactive stage disease.
Abstract
BACKGROUND: It is generally stated that oral antiviral therapy in patients with chronic hepatitis B (CHB) decreases the risk of developing hepatocellular carcinoma (HCC). Although oral nucleos(t)ide analogues (NUCs) may induce a state similar to inactive stage CHB, the long-term risk for HCC in patients treated with NUCs compared with inactive CHB is unclear.
METHODS: A total of 1378 patients who were treatment naïve and started NUC therapy and 1014 patients with inactive stage CHB who were HBeAg-negative and continuously had hepatitis B DNA <2000 IU/mL during follow-up were enrolled. The NUC group was divided into two groups by continuous viral suppression: NUC complete responder (CR) group and NUC incomplete responder (IR) group. Cumulative HCC incidence rates were compared between the groups.
RESULTS: The risk of developing HCC was significantly higher in the NUC CR group compared with the inactive CHB group, regardless of the presence of baseline liver cirrhosis (p<0.001). Risk factors associated with the development of HCC were treatment groups (p<0.001), age (p<0.001), sex (p<0.001) and the presence of liver cirrhosis at baseline (p=0.005). Of the NUC group, the cumulative incidence of HCC in the NUC IR group was significantly higher compared with the NUC CR group (p=0.028).
CONCLUSIONS: The use of potent oral antiviral therapy can effectively suppress HBV replication in patients with CHB. However, the risk of HCC development in patients treated with oral antiviral agent is still significantly higher than patients with inactive stage CHB.
In conclusion, our large nationwide study indicates that the HCC risk remains increased in entecavir-treated HBeAg-negative CHB patients with cirrhosis, particularly of older age, at least for the first 5 years. The HCC risk does not seem to be significantly reduced with entecavir compared with antiviral therapy starting with lamivudine.
总之,我们的大型全国性研究表明,肝癌的风险仍然在恩替卡韦治疗HBeAg阴性慢性乙型肝炎肝硬化患者增多,尤其是年龄较大,至少在第一个5年。肝癌的风险似乎不恩替卡韦被显著降低与抗病毒治疗开始拉米夫定比较
"remains increased" 仍然保持较高的风险.
Overall, these data indicate that with the current, potent NAs, HCC risk can be reduced but not eliminated, probably due to risk factors that are not amenable to change by antiviral therapy, or events that may have taken place before treatment initiation.作者: 战天斗hbv 时间: 2015-3-17 21:16