恩替卡韦治疗慢性乙型肝炎患者血清HBV cccDNA和HBV pgRNA水平变化*

目的 探讨血清 HBV 共价闭合环状 DNA(HBV cccDNA)和HBV前基因组 RNA(HBV pgRNA)水平预测血清HBeAg阳性慢性乙型肝炎(CHB)患者接受恩替卡韦治疗后疗效的临床价值。方法 2018年1月～2020年1月我院收治的HBeAg阳性CHB患者89例,均口服恩替卡韦分散片治疗48 w。使用COOBAS TAQMAN和COBAS Amliprep系统和采用荧光定量PCR法检测血清HBV cccDNA和HBV pgRNA水平,采用化学发光法定量检测血清HBsAg和HBeAg水平。应用受试者工作特征曲线(ROC)分析血清各指标预测恩替卡韦治疗的CHB患者疗效的价值。结果 89例HBeAg阳性CHB患者经恩替卡韦治疗48 w后,获得病毒学应答85例(95.5%),生化学应答80例(89.9%),血清学应答9例(10.1%);获得完全应答75例(84.3%);完全应答组血清ALT、HBsAg、HBeAg、HBV DNA, HBV cccDNA和HBV pgRNA水平分别为(228.3±34.9)U/L、(2.5±0.4)lg IU/mL、(18.6±1.9)S/CO、(6.1±0.6)lg IU/mL、(2.2±0.2)cps/mL和(4.5±0.6)cps/mL,与非完全应答组【分别为(69.5±17.1)U/L、(3.7±0.7)lg IU/mL、(163.2±16.3)S/CO、(6.8±0.7)lg IU/mL、(3.9±0.4)cps/mL和(7.0±0.7)cps/mL】比,差异显著(P＜0.05);应用血清HBV cccDNA与HBV pgRNA水平联合预测CHB患者接受恩替卡韦治疗疗效的ROC曲线下面积为0.892,其敏感性为81.6%,特异性为89.5%。结论 在抗病毒治疗前,检测HBeAg阳性慢性乙型肝炎患者血清HBV cccDNA和HBV pgRNA水平预测疗效有一定的应用价值,值得进一步研究。     

Active antiviral therapy for chronic hepatitis B and hepatocellular carcinoma

The ultimate goal of treatment for chronic hepatitis B (CHB) is to prevent hepatocellular carcinoma (HCC). During the last decade, great strides have been made in the treatment of hepatitis B virus (HBV) infections. Six highly effective anti-HBV agents are currently available and more agents are on the horizon. Prospective and retrospective studies of large numbers of CHB patients with advanced liver disease, including cirrhosis, have demonstrated that the treatment with lamivudine not only delays the disease progression but also reduces the incidence of HCC. In a large prospective study of 3,653 HBV carriers in Taiwan, 164 persons developed HCC in a 12-year follow-up period; an extensive analysis of their condition led to the conclusion that the most important risk factor for HCC is an increased serum level of HBV DNA >10,000 copies/mL regardless of the HBeAg status, alanine aminotransferase levels or presence of cirrhosis. The incidence of HCC correlated with serum HBV DNA level at entry in a dose-response relationship. These pivotal studies re-emphasize the need for an active anti-HBV therapy for CHB patients with viral replication as the ultimate prevention and/or delay for the development of HCC.     

恩替卡韦抗病毒对TACE治疗的HBV DNA阴性乙型肝炎相关性肝癌的影响

目的 探讨应用恩替卡韦预防治疗接受肝动脉化疗栓塞术（TACE）的乙型肝炎病毒（HBV）DNA阴性的乙型肝炎相关性肝细胞癌（HCC）患者对病毒激活的影响。方法 将45例HBV DNA阴性乙型肝炎相关性HCC患者随机分为观察组23例和对照组22例。两组患者均在常规护肝治疗基础上接受TACE治疗,观察组于TACE治疗前1周开始应用恩替卡韦分散片抗病毒治疗,对照组未行抗病毒治疗。采用荧光定量PCR法检测血清HBV DNA,采用微粒发光法检测血清HBV标志物,使用全自动生化分析仪检测血生化指标。观察并比较两组TACE后血清HBV DNA转阳和肝衰竭发生率及生存率情况。结果 在治疗24 w,观察组血清HBV DNA水平仍为<2 lg IU/mL,明显低于对照组的（4.10±2.86） lg IU/mL（P<0.01）,观察组HBV DNA转阳率为8.7%,明显低于对照组的36.4%（P<0.05）;观察组肝衰竭发生率为0.0%,对照组为22.7%,但两组差异无统计学意义（P>0.05）;在治疗12 w,观察组血清ALT为（56.75±20.74） IU/L,明显低于对照组的（125.78±42.75） IU/L,PTA为（48.65±8.26）%,明显高于对照组的（42.74±7.42）%（P<0.05）;在24 w,观察组血清ALT水平和Child-Pugh评分分别为（50.73±18.45）IU/L和（6.26±1.46）分,明显低于对照组的（97.48±30.56） IU/L和（7.84±1.65） 分,PTA为（52.45±9.10）%,明显高于对照组的（39.56±6.78）%（均P<0.01）;两组近期临床疗效差异无统计学意义(P>0.05);观察组2 a生存率为69.6%,明显高于对照组的36.4%（P<0.05）。结论 对接受TACE治疗的HBV DNA阴性的乙型肝炎相关性HCC患者,给予恩替卡韦抗病毒预防性治疗可以抑制HBV再激活,改善肝功能。     

Hepatocellular carcinoma in chronic hepatitis B patients under antiviral therapy

Patients with chronic hepatitis B are at increased risk of hepatocellular carcinoma(HCC),while the inhibition of viral replication can represent a reasonable target for HCC prevention.Interferon-αtherapy results in decreased HCC risk,which is more evident in patients with high baseline HCC risk.The majority of chronic hepatitis B patients are treated with a nucleos(t)ide analogue(NA)for several reasons including the nonsustained response after interferon-α.The effect of the first licensed and low genetic barrier NA,lamivudine,on HCC incidence,has been repeatedly evaluated.Lamivudine,compared to no treatment,reduces the HCC incidence,which may increase again in cases with lamivudine resistance.Emerging data with the currently first-line NAs,entecavir and tenofovir,suggest that they also reduce the HCC incidence.The treatment benefit in reduction of the HCC incidence is always greater in patients with high baseline HCC risk,particularly cirrhotics,and without virological remission under entecavir/tenofovir.However,the HCC risk is not eliminated even in the vast majority of patients who remain in virological remission under entecavir/tenofovir.Therefore,patients at increased baseline HCC risk should continue to undergo HCC surveillance even if they have achieved complete long-term inhibition of viral replication and improvements in liver histology.     

Risk prediction models for hepatocellular carcinoma in chronic hepatitis B patients on antiviral therapy: A meta-analysis

Background and aimsThe risk prediction of hepatocellular carcinoma (HCC) in patients with chronic hepatitis B (CHB) is a challenge especially in the era of antiviral therapy. The aim of this meta-analysis was to comprehensively evaluate the performance of existing HCC prediction scores in HCC prediction on antivirals.MethodsWe searched PubMed, Web of Science and Cochrane Library for relevant prospective studies from the inception to August 24, 2021. The areas under the receiver operating characteristics (AUROCs) and their relevant 95% confidence intervals (CIs) of the risk prediction models were calculated.ResultsNine eligible articles with 21561 patients (HCC developed in 947patients, 4.39%; mean follow-up duration: 5 years) and 14 predictive risk scores were included. The pooled AUROC of all included scores for 3-year and 5-year prediction of HCC was 0.72 (95%CI 0.68-0.76) and 0.80 (95%CI 0.76-0.83), with the corresponding sensitivity of 0.84 (95% CI 0.71-0.92) and 0.91(95% CI 0.86-0.95) and specificity of 0.46 (95% CI 0.30-0.63) and 0.48 (95% CI 0.37-0.59), respectively. All the 14 prediction models, as a whole, performed well in different populations, whether they include factor cirrhotic status or not; while those integrated viral load were less accurate (sensitivity 0.78, specificity of 0.57).ConclusionsIn patients with CHB on antivirals, the scores included in our meta-analysis have been proven to be useful for mid-long term HCC prediction. Viral load seems not useful, whereas cirrhosis and its objective surrogates remain the predominant components. These models are expected to translate clinical benefits if used in complementarity with regular HCC surveillance.     

Liver cirrhosis stages and the incidence of hepatocellular carcinoma in chronic hepatitis B patients receiving antiviral therapy

Objectives: Long-term antiviral therapy decreases the risk of hepatocellular carcinoma (HCC) in patients with chronic hepatitis B (CHB), however, it cannot eliminate the risk. We investigated the incidence of HCC at different stages of liver cirrhosis (LC) and identified clinical predictors for HCC development during antiviral therapy.

Methods: The data from 356 treatment-naïve patients aged 40 to 69 years without a history of HCC who had received entecavir for ≥6 months were collected retrospectively. The incidence of HCC was evaluated in patients with CHB only, with LC without varices (stage 1), with varices (stage 2), and with ascites (stage 3).

Results: The median follow-up period was 3.6 years. In total, 45 patients (12.6%) developed HCC. The annual incidence rates of HCC in patients with CHB only or LC in stages 1, 2, and 3 were 0.4%, 2.6%, 9.8%, and 6.7%, respectively. In multivariate analyzes, LC at stage 2 (hazard ratio [HR] 17.16, 95% confidence interval [C.I.] 3.93–75.01, p?<?.001), alcohol consumption (HR 3.84, 95% C.I. 1.99–7.39, p?<?.001), and older age (HR 1.06, 95% C.I. 1.01–1.11, p?=?.010) were significantly associated with HCC development. The risk decreased in those who stopped drinking after 2 years of abstinence (p?=?.0314).

Conclusions: LC with significant portal hypertension (varices or ascites), alcohol consumption, and older age at the time of starting antiviral therapy are independent predictors for future HCC development.     

抗病毒治疗对H BV DNA阳性肝癌患者术后临床转归的影响

目的：探讨抗病毒治疗对 HBV DNA阳性肝癌患者术后临床转归的影响。方法2008年至2013年我院共收治50例接受肝癌根治切除手术治疗的HBV DNA阳性肝癌患者,将这些患者分为观察组和对照组,每组25例。对照组患者单纯手术治疗,观察组患者手术切除联合拉米夫定抗病毒治疗。结果术后6个月观察组患者的AST、ALT、TBil水平均较对照组显著降低,Alb 水平较对照组增高（P＜0．05）;术后3个月和6个月观察组患者的 HBV DNA、Child-Pugh评分均较对照组显著降低（P＜0．05）;观察组患者的存活中位数明显较对照组大,1～2年、2～3年、3年以上无瘤生存率均较对照组显著升高（P＜0．05）。结论抗病毒治疗能够有效改善手术治疗的 HBV DNA阳性肝癌患者的预后。     

Effect of antiviral treatment on the risk of hepatocellular carcinoma in patients with chronic hepatitis B

Chronic hepatitis B (CHB) is a major risk factor for hepatocellular carcinoma (HCC). The prevention of HCC is of paramount importance in patients with CHB, particularly in those with cirrhosis. Antiviral treatment can potentially reduce the risk for HCC since it suppresses viral replication, induces HBeAg seroconversion and improves liver histology. However, most evidence supporting a protective effect of antiviral treatment originates from non-randomized or retrospective studies and is limited to conventional interferon and lamivudine. There is a paucity of data on the effects of pegylated interferon and "newer" oral agents (telbivudine, tenofovir, entecavir) on HCC risk. However, it should be emphasized that the existing randomized control studies in patients with CHB were relatively short-term and not designed to assess the effects of antiviral treatment on HCC risk. Since viral load directly correlates with HCC risk, it is reasonable to hypothesize that the reduction in viral load with antiviral treatment will also lower the risk of HCC. This benefit might become more readily apparent with the newer agents used in the management of CHB which are more effective and have a more favorable resistance profile.     

慢性乙型肝炎特殊患者抗病毒治疗专家共识

<正>近年来,慢性乙型肝炎(chronic hepatitis B,CHB)患者抗病毒治疗不断进展,一般患者的治疗逐渐趋于规范,而特殊人群患者由于循证医学证据相对不足、相关指南无统一的推荐意见等原因成为临床治疗的难点。     

Delayed viral suppression during antiviral therapy is associated with increased hepatocellular carcinoma rates in HBeAg‐positive high viral load chronic hepatitis B

The treatment option in chronic hepatitis B (CHB) patients with persistent low‐level viremia despite entecavir or tenofovir monotherapy is unclear. This study investigated the development of hepatocellular carcinoma (HCC) or cirrhosis in hepatitis B e antigen (HBeAg)‐positive high viral load CHB patients, according to the time needed to achieve complete viral suppression. A total of 325 HBeAg‐positive CHB patients with high viral load who were recently started on antiviral therapy with entecavir or tenofovir were included. The enrolled patients were divided into 2 groups with 4 separate criteria based on the time needed to achieve complete viral suppression: within 1, 2, 3 or 4 years of therapy initiation. The outcomes were development of HCC and cirrhosis. The cumulative incidence of HCC was significantly higher in patients failing complete viral suppression within 1 year (hazard ratio (HR), 4.54; 95% confidence interval (CI), 1.03‐19.93; P = .045) or 2 years (HR, 3.38; 95% CI, 1.24‐9.23; P = .018), than patients who achieved complete viral suppression within 1 or 2 years, respectively. Cumulative incidence of cirrhosis was also significantly higher in patients failing suppression within 1 year (HR, 1.95; 95% CI, 1.04‐3.66; P = .037) or 2 years (HR, 2.44; 95% CI, 1.41‐4.22; P = .001). When the time for achieving viral suppression exceeded 2 years, the cumulative incidence of HCC or cirrhosis was not different regardless of viral suppression. Complete hepatitis B virus suppression within 2 years of antiviral therapy initiation is associated with risk reduction in HCC or cirrhosis development.     

Modified PAGE-B score predicts the risk of hepatocellular carcinoma in Asians with chronic hepatitis B on antiviral therapy

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HBV DNA阳性慢性重型乙型肝炎的抗病毒疗效分析

目的：探讨核苷类抗病毒药治疗对HBV DNA阳性慢性重型乙型肝炎患者短期生存率的影响及不同药物的疗效差异。方法：将入院时432例HBV DNA阳性的慢性重型乙型肝炎患者分为两组：230例为抗病毒组（根据服用不同抗病毒药又分为3组）,202例为对照组。比较两组患者治疗12周的生存率及总胆红素（TBil）、凝血酶原活动度（PTA）、HBV DNA转阴率的差异,同时比较不同抗病毒药物治疗12周的生存率差异和生化指标及HBV DNA阴转的差异。结果：①治疗12周生存率抗病毒组为70.70%,对照组为58.50%,两组比较差异有显著性意义（P〈0.05）。②治疗12周HBV DNA阴转率,抗病毒组为69.06%（96/139）,对照组为32.29%（31/96）,两组比较差异有显著性意义（P〈0.01）。③不同抗病毒药物中12周生存率,恩替卡韦组为73.30%,拉米夫定组70.50%,替比夫定组67.70%,3种药物比较差异无显著性意义（P〉0.05）。④治疗12周时患者TBil、PTA、HBV DNA转阴率拉米夫定组分别为（83.63±99.47）μmol/L、（58.57±16.69）%、65.08%,替比夫定组分别为（102.33±113.58）μmol/L、（55.61±15.98）%、69.23%,恩替卡韦组分别为（70.66±108.86）μmol/L、（57.46±17.12）%、74.00%。3组比较差异均无显著性意义（P〉0.05）。结论：抗病毒治疗可以改善慢性重型乙型肝炎的预后及肝功能,常用的3种核苷类药物疗效的差异无统计学意义。     

HBsAg及HBV DNA定量水平在慢性乙型肝炎、肝硬化和肝癌患者中的变化

目的 了解HBsAg定量水平在慢性乙型肝炎、乙型肝炎肝硬化、HBsAg阳性的原发性肝癌患者中的变化及其在3组患者中与HBV DNA的相关性. 方法 采集47例慢性乙型肝炎患者(乙型肝炎组),72例乙型肝炎肝硬化患者(肝硬化组)及54例肝癌患者(肝癌组)的血清标本,用雅培化学发光法进行HBsAg定量测定,荧光PCR定量法检测HBV DNA量水平.多组分析采用Kruskal-Wallis检验,两组间比较采用Mann-WhitneyU检验,相关性分析采用Spearman检验.结果 HBsAg定量值在乙型肝炎、肝硬化、肝癌组患者中的中位数分别为2361.10、1001.64、594.35IU/ml,3组间呈逐渐下降趋势,x2= 24.394,P＜0.05,差异有统计学意义;乙型肝炎组与肝硬化组比较,Z= -3.754,P＜0.05,差异有统计学意义;乙型肝炎组与肝癌组比较,Z=-4.630,P＜0.05,差异有统计学意义;而肝硬化组与肝癌组比较,差异无统计学意义.HBeAg阳性患者,HBsAg定量值在乙型肝炎组、肝硬化组、肝癌组患者的中位数分别为3259.83、1077.30、789.72 IU/ml,3组间呈下降趋势,x2= 15.643,P＜0.01,差异有统计学意义.对于HBeAg阴性患者,HBsAg定量值在乙型肝炎组、肝硬化组、肝癌组患者的中位数分别为1669.00、1001.64、582.05 IU/ml,3组间呈下降趋势,x2 =6.423,P＜0.05,差异有统计学意义.HBV DNA定量值在乙型肝炎组、肝硬化组、肝癌组患者的中位数分别为5.3579、 4.2207、1.0000 log10拷贝/ml,4分位数间距分别为(4.3579 ～6.8745)、(0.0000 ～ 5.7393)、(0.0000 ～ 4.6651)log10拷贝/ml,3组HBV DNA定量值比较,x2=31.412,P＜0.05,差异有统计学意义; HBsAg与HBV DNA在乙型肝炎组(r= 0.297,P＜0.05)、肝硬化组(r= 0.346,P＜0.05)、肝癌组(r=0.452,P＜0.05)均呈正相关.结论 HBsAg定量值在慢性乙型肝炎、肝硬化、肝癌患者中逐渐降低,且与HBV DNA水平正相关.