Meta-analysis: oral anti-viral agents in adults with decompensated hepatitis B virus cirrhosis

Switching to tenofovir alafenamide in patients with virologically suppressed chronic hepatitis B and renal or hepatic impairment: final week 96 results from an open-label, multicentre, phase 2 study

BACKGROUND

Phase 3 studies in patients with chronic hepatitis B have shown tenofovir alafenamide to have non-inferior efficacy to tenofovir disoproxil fumarate, with improved renal and bone safety. We conducted this study to evaluate the safety and efficacy of switching to tenofovir alafenamide in participants with chronic hepatitis B and renal or hepatic impairment.

METHODS

This open-label, multicentre, phase 2 study was done in eight countries or territories at 30 sites. We recruited adults (≥18 years) with chronic hepatitis B who were virally suppressed on nucleoside or nucleotide analogues and had renal impairment (part A: moderate or severe in cohort 1 [estimated glomerular filtration rate by the Cockcroft-Gault formula (eGFRCG) 15-59 mL/min] or end-stage renal disease [eGFRCG <15 mL/min] on haemodialysis in cohort 2) or hepatic impairment including decompensation (part B: Child-Turcotte-Pugh score 7-12). Participants switched to 25 mg of tenofovir alafenamide given orally once daily for 96 weeks. The primary endpoint was the proportion of participants with viral suppression (HBV DNA <20 IU/mL) at week 24 by missing-equals-failure analysis. Efficacy (full analysis set) and safety (safety analysis set) analyses included all enrolled participants who received at least one dose of the study drug. Week 96 safety was assessed, including renal and bone parameters. This trial is registered at ClinicalTrials.gov, NCT03180619, and is completed.

FINDINGS

124 participants (93 in part A [78 in cohort 1 and 15 in cohort 2] and 31 in part B) were enrolled between Aug 11, 2017, and Oct 17, 2018, and included in the full and safety analysis sets. 106 (85%) participants completed the study. There were 69 (74%) men and 24 (26%) women in part A and 21 (68%) men and ten (32%) women in part B. At week 24, 91 (97·8%, 95% CI 92·4 to 99·7) of 93 individuals in part A (76 [97·4%, 91·0 to 99·7] of 78 in cohort 1 and 15 [100·0%, 78·2 to 100·0] of 15 in cohort 2) and 31 (100·0%, 88·8 to 100·0) in part B had HBV DNA of less than 20 IU/mL. By week 96, the most common adverse event was upper respiratory tract infection, which occurred in 14 (15%) participants in part A and in six (19%) participants in part B. Serious adverse events occurred in 20 (22%) part A participants and in ten (32%) part B participants; none were related to treatment. No treatment-related deaths occurred. At week 96, median change in estimated glomerular filtration rate (Cockcroft-Gault method) was 1·0 mL/min (IQR -2·8 to 4·5) in cohort 1 and -2·4 mL/min (-11·4 to 10·7) in part B. Mean changes in spine and hip bone mineral density were 1·02% (SD 4·44) and 0·20% (3·25) in part A and -0·25% (3·91) and 0·28% (3·25) in part B.

INTERPRETATION

Tenofovir alafenamide might offer continued antiviral efficacy and a favourable safety profile for patients with renal or hepatic impairment and chronic hepatitis B switching from tenofovir disoproxil fumarate or other antivirals.

FUNDING

Gilead Sciences.

Risk of HCC decreases in HBV-related patients with cirrhosis acquired recompensation: A retrospective study based on Baveno VII criteria

BACKGROUND

Antiviral therapy improves the clinical outcomes of patients with HBV-related cirrhosis. In this study, we aimed to evaluate the incidence rate of HCC in patients with HBV-related recompensated, compensated, or decompensated cirrhosis based on the latest Baveno VII criteria.

METHODS

In this two-center retrospective study, HBV-related patients with cirrhosis were enrolled and treated with first-line nucleos(t)ide analogues therapy for at least 12 months. Participants were classified into 3 groups: (1) compensated group, (2) decompensated group, or (3) recompensated group according to Baveno VII criteria. Multivariate regression models and propensity score matching were used to identify the predictors of HCC.

RESULTS

Of the 404 patients recruited, during a median follow-up of 44.5 months (interquartile range 26.8, 57.0 months), 233 (57.7%), 100 (24.8%), and 71(17.6%) patients had compensated, recompensated, and decompensated cirrhosis. In total, 38 developed HCC. The cumulative incidence of HCC development at 2, 4, and 6 years was 1.3%, 5.4%, and 20.0% in the compensated group, 1.2%, 5.2%, and 24.5% in the recompensated group, and 2.1%, 23.6%, and 41.8% in the decompensated group, respectively. In the multivariate Cox regression model, compared with the recompensated group, the decompensated group had a significant increased risk for the development of HCC (aHR 2.55; 95% CI: 1.240-5.240; p = 0.027), while the compensated group had similar HCC risk for the development of HCC (aHR 1.41; 95% CI: 0.540-3.730; p = 0.835). Propensity score-matching analysis between the recompensated and compensated groups (84 pairs) and propensity score-matching analysis between the recompensated and decompensated groups (62 pairs) showed similar results.

CONCLUSIONS

Achieving recompensation reduced the risk of HCC in patients with HBV-related decompensated cirrhosis, while the risk remained comparable to that of compensated cirrhosis.

Two-year free of complications during antiviral therapy predicts stable re-compensation in immediate-treatment HBV-related decompensated cirrhosis

BACKGROUND AND AIMS

Disease progression could be altered or even reversed in decompensated patients with HBV-related cirrhosis once they initiate antiviral therapy. However, little is known about the stable re-compensation in these patients.

METHODS

In this retrospective study, HBV-related liver cirrhosis patients were consecutively enrolled at the first decompensated event of ascites or variceal hemorrhage (VH), and divided into immediate-treatment, on-treatment and delayed/no treatment groups. Patients were followed up to at least presence of second decompensation event or to June 2021. Re-compensation was defined as patients who did not occur second (further) decompensation during follow-up.

RESULTS

A total of 130 HBV-related decompensated cirrhotic patients were included with a median follow-up of 61.0 (41.6, 72.0) months. The cumulative incidence of re-compensation at year 6 was 39.0, 9.8 and 6.6 in immediate-treatment, on-treatment and delayed/no treatment group (p = 0.001). Among 87 patients in immediate-treatment group, thirty-seven (37/87, 42.5%) were recognized as stable re-compensation. Seventy percent (35/50) of second decompensated events occurred in the first 2 years. In patients free of 2-year decompensated complications, about 71.2% (37/52) maintained stable re-compensation. The cumulative incidence of death (and/or transplantation) and HCC in patients free of 2-year decompensated complications or not was 2.9 vs. 27.3% (HR 9.4, 95% CI 2.2-40.0, p = 0.002) and 12.6 vs. 37.7% (HR 4.5, 95% CI 1.5-13.3, p = 0.006), respectively.

CONCLUSIONS

In decompensated patients with HBV-related cirrhosis, about 40% in immediate-treatment group maintained stable re-compensation during 6 years of antiviral therapy. Two-year free of complications could predict stable re-compensation.

Ascites re-compensation in HBV-related first decompensated cirrhosis after anti-viral therapy

Effective antiviral therapy can significantly improve the long-term prognosis of HBV-related decompensated patients, and re-compensation may be achieved in part of the patients. To explore the re-compensation of ascites after HBV suppression and the risk factors, the clinical outcomes of 196 consecutive patients with HBV-related first decompensated cirrhosis of ascites treated with nucleos(t)ide analogue (NUC) were analyzed retrospectively. Among these patients, the median serum HBV DNA level was 5.0 (IQR, 3.0-6.0) log₁₀ IU/mL before treatment. Most patients were given NUC with high barrier to resistance including ETV (152), TDF (1) and TAF (1). Initial combination of LAM plus ADV and LdT plus ADV was used in 41 patients and 1 patients, respectively. After NUC treatment, the percentage of patients with ascites regression was 77.6%, 81.4%, 70.5%, 93.8%, 80.8% at 12, 24, 36, 48, 60 months, respectively (P<0.001). The distribution of ascites severity showed that the patients' ascites improved, with the proportion of no ascites and mild ascites gradually increased. The proportion of re-compensation of ascites defined as negative HBV DNA, improved liver function and ascites regression (off diuretics) was 59.7%, 70.0%, 52.3%, 59.4%, 46.2% at 12, 24, 36, 48, 60 months (P<0.001). The rate of ascites regression was higher in viral response (VR) cohort when compared with that in non-VR cohort. Univariate and multivariable analysis showed that level of serum ALT (OR:0.988, 95%CI, p=0.029) and load of serum HBV DNA (OR:0.78895%CI, p=0.044) at baseline were risk factors of re-compensation of ascites. This study demonstrated that antiviral therapy could reverse decompensation of ascites in HBV-related first decompensated cirrhosis and the level of ALT and HBV DNA were risk factors of ascites re-compensation.

Systematic review and meta-analysis: impact of anti-viral therapy on portal hypertensive complications in HBV patients with advanced chronic liver disease

BACKGROUND

The efficacy of nucleos(t)ide analogs (NAs) in non-cirrhotic chronic hepatitis B (CHB) patients is well-established. However, their impact on complications of portal hypertension in advanced chronic liver disease (ACLD) is less well characterized.

METHODS

MEDLINE/PubMed, EMBASE, Web of Science, Cochrane Central Register of Controlled Trials, and abstracts of major international hepatology meetings were searched for publications from Jan 1, 1995 to Nov 30, 2021. Randomized control trials and observational studies reporting the efficacy of NAs in ACLD patients were eligible. Pooled risk ratios (RRs) for outcomes of interest were calculated with a random-effect or fixed-effect model, as appropriate.

RESULTS

Thirty-nine studies including 14,212 ACLD patients were included. NA treatment was associated with reduced risks of overall hepatic decompensation events (RR, 0.51; 95% confidence interval [CI]: 0.37-0.71), such as variceal bleeding (RR, 0.44; 95% CI: 0.26-0.74) and ascites (RR, 0.10; 95% CI: 0.01-1.59), on a trend-wise level. Moreover, the risks of hepatocellular carcinoma (HCC) (RR, 0.48; 95% CI: 0.30-0.75) and liver transplantation/death (RR, 0.36; 95% CI: 0.25-0.53) were also reduced by NA treatment and the first-line NAs were superior to non-first-line NAs in improving these outcomes (RR, 0.85; 95% CI: 0.75-0.97 and RR, 0.85; 95% CI: 0.73-0.99, respectively).

CONCLUSION

NA therapy lowers the risk of portal hypertension-related complications, including variceal bleeding, HCC, and liver transplantation/death.

The novel role of ER protein TXNDC5 in the pathogenesis of organ fibrosis: mechanistic insights and therapeutic implications

Fibrosis-related disorders account for an enormous burden of disease-associated morbidity and mortality worldwide. Fibrosis is defined by excessive extracellular matrix deposition at fibrotic foci in the organ tissue following injury, resulting in abnormal architecture, impaired function and ultimately, organ failure. To date, there lacks effective pharmacological therapy to target fibrosis per se, highlighting the urgent need to identify novel drug targets against organ fibrosis. Recently, we have discovered the critical role of a fibroblasts-enriched endoplasmic reticulum protein disulfide isomerase (PDI), thioredoxin domain containing 5 (TXNDC5), in cardiac, pulmonary, renal and liver fibrosis, showing TXNDC5 is required for the activation of fibrogenic transforming growth factor-β signaling cascades depending on its catalytic activity as a PDI. Moreover, deletion of TXNDC5 in fibroblasts ameliorates organ fibrosis and preserves organ function by inhibiting myofibroblasts activation, proliferation and extracellular matrix production. In this review, we detailed the molecular and cellular mechanisms by which TXNDC5 promotes fibrogenesis in various tissue types and summarized potential therapeutic strategies targeting TXNDC5 to treat organ fibrosis.

Concurrent large spontaneous portosystemic shunt embolization for the prevention of overt hepatic encephalopathy after TIPS: A randomized controlled trial

BACKGROUND AND AIMS

Large spontaneous portosystemic shunt (SPSS) is associated with increased risk of HE in patients undergoing transjugular intrahepatic portosystemic shunt (TIPS). This study aimed to evaluate whether prophylactic embolization of large SPSS at the time of TIPS creation could reduce the incidence of post-TIPS HE in patients with cirrhosis and variceal bleeding.

APPROACH AND RESULTS

From June 2014 to August 2017, 56 patients with cirrhosis and large SPSS planning to undergo TIPS for the prevention of variceal bleeding were randomly assigned (1:1) to receive TIPS alone (TIPS group, n = 29) or TIPS plus simultaneous SPSS embolization (TIPS+E group, n = 27). The primary endpoint was overt HE. TIPS placement and SPSS embolization was successful in all patients. During a median follow-up of 24 months, the primary endpoint was met in 15 patients (51.7%) in the TIPS group and six patients (22.2%) in the TIPS+E group (p = 0.045). The 2-year cumulative incidence of overt HE was significantly lower in the TIPS+E group compared with the TIPS group (21.2% vs. 48.3%; HR, 0.38; 95% CI, 0.15-0.97; p = 0.043). The 2-year incidence of recurrent bleeding (TIPS+E vs. TIPS, 15.4% vs. 25.1%; p = 0.522), shunt dysfunction (12.3% vs. 18.6%, p = 0.593), death (15.0% vs. 6.9%, p = 0.352), and other adverse events was not significantly different between the two groups.

CONCLUSIONS

In patients with cirrhosis treated with TIPS for variceal bleeding, concurrent large SPSS embolization reduced the risk for overt HE without increasing other complications. Concurrent large SPSS embolization should therefore be considered for prophylaxis of post-TIPS HE.

Safety and Effectiveness of Tenofovir Alafenamide in Usual Clinical Practice Confirms Results of Clinical Trials: TARGET-HBV

BACKGROUND

Nucleos(t)ide analogues, with a proven record of safety and efficacy, have been the therapy of choice for over a decade for the treatment of chronic hepatitis B. The approval of tenofovir alafenamide (TAF) in 2016 provided an additional treatment option.

AIMS

The aim of this study was to evaluate the characteristics and clinical outcomes of patients treated with TAF in usual clinical practice.

METHODS

Retrospective data from electronic health records was obtained from those enrolled in TARGET-HBV, a longitudinal observational cohort study of patients with chronic hepatitis B managed according to local practice standards at community and academic medical centers throughout the U.S.

RESULTS

Of 500 patients enrolled, most were male (66%) and of Asian race (66%) with median age of 55 years. Cirrhosis was evident in 15%. Most patients (82%) had switched to TAF after treatment with other antivirals. The perceived safety profile of TAF was cited as the primary reason for changing therapy (32%). TAF was well tolerated and only 4 patients discontinued therapy due to adverse event during a median duration of TAF dosing of 74 weeks. Among those with paired laboratory data 12-18 months after switching to TAF, biochemical response and HBV DNA suppression was maintained. Most patients had normal renal function which was essentially unchanged throughout follow-up.

CONCLUSIONS

TAF is frequently utilized in routine clinical practice due to the perception of its improved safety profile. The current study supports the growing body of evidence regarding the safety and effectiveness of TAF. Trial Registration ClinicalTrials.gov identifier: NCT03692897, https://clinicaltrials.gov/ct2/show/NCT03692897 .

Review article: current and emerging therapies for the management of cirrhosis and its complications

BACKGROUND

Cirrhosis is increasingly common and morbid. Optimal utilisation of therapeutic strategies to prevent and control the complications of cirrhosis are central to improving clinical and patient-reported outcomes.

METHODS

We conducted a narrative review of the literature focusing on the most recent advances.

RESULTS

We review the aetiology-focused therapies that can prevent cirrhosis and its complications. These include anti-viral therapies, psychopharmacological therapy for alcohol-use disorder, and the current landscape of clinical trials for non-alcoholic steatohepatitis. We review the current standard of care and latest developments in the management of hepatic encephalopathy (HE), ascites and hepatorenal syndrome. We evaluate the promise and drawbacks of chemopreventative therapies that have been examined in trials and observational studies which may reduce the risk of hepatocellular carcinoma and cirrhosis complications. Finally, we examine the therapies which address the non-pain symptoms of cirrhosis including pruritis, muscle cramps, sexual dysfunction and fatigue.

CONCLUSION

The improvement of clinical and patient-reported outcomes for patients with cirrhosis is possible by applying evidence-based pharmacotherapeutic approaches to the prevention and treatment of cirrhosis complications.

Follow-Up of 108 Patients with Chronic Hepatitis B Virus Infection Treated with Polyethylene Glycol-Conjugated Derivatives of Interferon-Alpha and Monitoring of Off-Treatment Virological Relapse

BACKGROUND This single center study, which enrolled 108 patients with chronic hepatitis B virus infection treated with pegylated interferon-alpha (PEG-IFN-alpha), aimed to follow up and monitor off-treatment responses, including virological relapse, and analyze predictors of long-term efficacy of the PEG-IFN-alpha regimen. MATERIAL AND METHODS In total, 108 hepatitis B e antigen (HBeAg)-positive patients with chronic hepatitis B who had completed the PEG-IFN-alpha regimen and achieved virological suppression were enrolled. The patients were followed up for 5 years to monitor off-treatment responses. Twenty-eight relevant factors, including the history of antiviral therapy and HBeAg seroconversion, were analyzed using the Cox proportional hazards regression model. RESULTS The cumulative rates of virological suppression were 75.70%, 68.68%, 65.25%, 63.91%, and 63.91% at 1, 2, 3, 4, and 5 years of the follow-up period, respectively. Compared with the rates of virological suppression, the cumulative rates of clinical suppression were 88.41%, 79.83%, 78.59%, 75.65%, and 75.65%, respectively, for the 5 years. Alanine aminotransferase (ALT) normalization at 24 weeks after off-therapy (relative risk [RR]=3.430, P=0.013) was a potential predictor for sustained virological suppression, and the history of anti-viral therapy (RR=0.164, P=0.004), quantitative value of hepatitis B virus surface antigen (HBsAg) at 48 weeks of anti-viral therapy (RR=2.697, P=0.039), and ALT normalization at 24 weeks after off-therapy (RR=5.467, P=0.004) were potential predictors for sustained clinical suppression. CONCLUSIONS Our results suggested that increased HBsAg levels at 48 weeks and normalization of ALT at 24 weeks after off-therapy might be predictive factors for long-term treatment efficacy.[color=red] [/color].

Asociación Mexicana de Hepatología A.C. Clinical guideline on hepatitis B

Hepatitis B virus (HBV) infection continues to be a worldwide public health problem. In Mexico, at least three million adults are estimated to have acquired hepatitis B (total hepatitis B core antibody [anti-HBc]-positive), and of those, 300,000 active carriers (hepatitis B surface antigen [HBsAg]-positive) could require treatment. Because HBV is preventable through vaccination, its universal application should be emphasized. HBV infection is a major risk factor for developing hepatocellular carcinoma. Semi-annual liver ultrasound and serum alpha-fetoprotein testing favor early detection of that cancer and should be carried out in all patients with chronic HBV infection, regardless of the presence of advanced fibrosis or cirrhosis. Currently, nucleoside/nucleotide analogues that have a high barrier to resistance are the first-line therapies.

Asociación Mexicana de Hepatología A.C. Clinical guideline on hepatitis B

Hepatitis B virus (HBV) infection continues to be a worldwide public health problem. In Mexico, at least three million adults are estimated to have acquired hepatitis B (total hepatitis B core antibody [anti-HBc]-positive), and of those, 300,000 active carriers (hepatitis B surface antigen [HBsAg]-positive) could require treatment. Because HBV is preventable through vaccination, its universal application should be emphasized. HBV infection is a major risk factor for developing hepatocellular carcinoma. Semi-annual liver ultrasound and serum alpha-fetoprotein testing favor early detection of that cancer and should be carried out in all patients with chronic HBV infection, regardless of the presence of advanced fibrosis or cirrhosis. Currently, nucleoside/nucleotide analogues that have a high barrier to resistance are the first-line therapies.

Recompensation factors for patients with decompensated cirrhosis: a multicentre retrospective case-control study

OBJECTIVES

We aimed to evaluate recompensation factors among patients with decompensated cirrhosis.

DESIGN

A multicentre retrospective case-control study was conducted. Data were collected from and compared between groups of patients with recompensated and acute decompensated cirrhosis. Univariable and multivariable logistic regressions were used to select indicators associated with recompensation among patients with decompensated cirrhosis with different complications. A decision tree with 10-fold cross-validation was used to develop the model to identify patients with recompensation. We followed the transparent reporting of a multivariable prediction model for individual prognosis or diagnosis (TRIPOD) guideline for development and reporting of the new model.

SETTING

The study was conducted in six tertiary public hospitals in Chongqing, China.

PARTICIPANTS

This study included 3953 patients with decompensated cirrhosis.

RESULTS

In the total sample of included patients, there were 553 patients with recompensation and 3400 patients with acute decompensation, including 1158 patients with gastrointestinal bleeding, 1715 patients with a bacterial infection, 104 patients with hepatic encephalopathy and 423 patients with ascites. The most relevant indicator of recompensation selected by the decision tree model was albumin, with a threshold of 40 g/L. Total protein, haemoglobin, basophil percentage, alanine aminotransferase, neutrophil-to-lymphocyte ratio and diabetes were also selected to subsequently distinguish patients. The terminal nodes with a probability of recompensation was 0.89. The overall accuracy rate of the model was 0.92 (0.91-0.93), and it exhibited high specificity (86.9%) and sensitivity (92.6%).

CONCLUSIONS

The occurrence of recompensated cirrhosis could be identified by albumin, total protein, haemoglobin, basophil percentage, alanine aminotransferase, neutrophil-to-lymphocyte ratio and diabetes. These simple variables may help clinicians develop a treatment plan to encourage patients with decompensated cirrhosis to recompensate.

The Role of Mycophenolate Mofetil for the Induction of Remission in ANCA-Associated Vasculitis: A Meta-Analysis

Objectives: The successful introduction of mycophenolate mofetil (MMF) as a treatment for renal allograft reduced the incidence of acute rejection. The inspiring effects obtained by the MMF have led to an evaluation of its therapeutic potency on ANCA-associated vasculitis (AAV). However, there is little evidence of the MMF's efficacy on the AAV. The meta-analysis is carried out to evaluate the efficacy of MMF as a remission induction therapy in AAV.

Methods: Up to June 30th, 2020, PubMed, Cochrane Library, and Embase have been searched comprehensively. According to heterogeneity, the pooled remission rates are synthesized by either fixed-effect or random-effect models.

Results: The eight included studies comprising 230 patients who were treated with MMF as induction therapy are included in our analysis. The pooled overall remission rate is 74% (95% CI: 0.68–0.80). The remission rate, the infection rate and the rate of leukopenia of four randomized controlled trials aimed at comparing the effects of MMF with cyclophosphamide (CYC) during induction therapy for AAV have no statistical significance (P > 0.05).

Conclusion: MMF may be an alternative to CYC for remission induction therapy in AAV with MPO-ANCA, mild to moderate renal involvement and non-life-threatening state. Whether to observe the effect of MMF in AAV or to compare the difference between MMF and CYC in the future studies, risk stratification and subgrouping of AAV patients should be first carried out to correctly identify the AAV subgroup suitable for MMF.

Consensus Guidelines: Best Practices for Detection, Assessment and Management of Suspected Acute Drug-Induced Liver Injury During Clinical Trials in Adults with Chronic Viral Hepatitis and Adults with Cirrhosis Secondary to Hepatitis B, C and Nonalcoholic Steatohepatitis

With the widespread development of new drugs to treat chronic liver diseases (CLDs), including viral hepatitis and nonalcoholic steatohepatitis (NASH), more patients are entering trials with abnormal baseline liver tests and with advanced liver injury, including cirrhosis. The current regulatory guidelines addressing the monitoring, diagnosis, and management of suspected drug-induced liver injury (DILI) during clinical trials primarily address individuals entering with normal baseline liver tests. Using the same laboratory criteria cited as signals of potential DILI in studies involving patients with no underlying liver disease and normal baseline liver tests may result in premature and unnecessary cessation of a study drug in a clinical trial population whose abnormal and fluctuating liver tests are actually due to their underlying CLD. This position paper focuses on defining best practices for the detection, monitoring, diagnosis, and management of suspected acute DILI during clinical trials in patients with CLD, including hepatitis C virus (HCV) and hepatitis B virus (HBV), both with and without cirrhosis and NASH with cirrhosis. This is one of several position papers developed by the IQ DILI Initiative, comprising members from 16 pharmaceutical companies in collaboration with DILI experts from academia and regulatory agencies. It is based on an extensive literature review and discussions between industry members and experts from outside industry to achieve consensus regarding the recommendations. Key conclusions and recommendations include (1) the importance of establishing laboratory criteria that signal potential DILI events and that fit the disease indication being studied in the clinical trial based on knowledge of the natural history of test fluctuations in that disease; (2) establishing a pretreatment value that is based on more than one screening determination, and revising that baseline during the trial if a new nadir is achieved during treatment; (3) basing rules for increased monitoring and for stopping drug for potential DILI on multiples of baseline liver test values and/or a threshold value rather than multiples of the upper limit of normal (ULN) for that test; (4) making use of more sensitive tests of liver function, including direct bilirubin (DB) or combined parameters such as aspartate transaminase:alanine transaminase (AST:ALT) ratio or model for end-stage liver disease (MELD) to signal potential DILI, especially in studies of patients with cirrhosis; and (5) being aware of potential confounders related to complications of the disease being studied that may masquerade as DILI events.

Monitoring and comorbidities in patients with chronic hepatitis B currently treated with nucleos(t)ide analogs

Background

Long-term monotherapy with nucleos(t)ide analogs (NAs) represents the treatment option for the majority of patients with chronic hepatitis B (CHB), an aging population with a greater likelihood of comorbidities. We assessed the prevalence of concurrent non-hepatic diseases and the safety monitoring in a large cohort of CHB patients receiving NAs and their potential impact on disease outcomes.

Methods

We included 500 consecutive CHB patients from 5 major tertiary Greek centers, under long-term therapy with an NA. Epidemiological/clinical characteristics and data on concomitant disease, drug use and investigations ordered were collected.

Results

The mean age was 58 years and 66% were male. Most patients were receiving tenofovir disoproxil fumarate (TDF, 60%) or entecavir (ETV, 37%) monotherapy. Decompensated cirrhosis at baseline was present in 10%, while hepatocellular carcinoma (HCC) under therapy developed in 21 patients. The median duration of total NA therapy was 56 and of latest therapy 42 months. The most common (prevalence >10%) comorbidities were hypertension (28%), non-HCC cancer(s) (12%), and diabetes (11%). Patients with a longer duration of latest therapy (≥4 vs. <4 years) were older (mean age: 58 vs. 56 years, P=0.004), had more frequent history of prior use of NA(s) (53% vs. 35%, P<0.001), and less frequent liver decompensation (5% vs. 13%, P=0.008) and non-HCC cancers (8% vs. 15%, P=0.020). HCC developed more frequently in patients with than in those without diabetes (11% vs. 3%, P=0.022).

Conclusion

Greek CHB patients currently treated with NAs, almost exclusively ETV or TDF, are often older than 60 years, have several comorbidities, and thus require careful management.

Recompensation of Decompensated Hepatitis B Cirrhosis: Current Status and Challenges

Liver-function decompensation or hepatocellular carcinoma (HCC) gradually appears after chronic hepatitis B progresses to cirrhosis. Effective antiviral treatment can significantly improve the long-term prognosis of decompensated patients, and some patients present recompensation of decompensated hepatitis B cirrhosis. At present, there are limited research data on the recompensation of decompensated hepatitis B cirrhosis. There is still controversy regarding the evaluation time, evaluation indicators, influencing factors, and long-term prognosis of recompensation.

Bayesian Network Meta-Analysis for Assessing Adverse Effects of Anti-hepatitis B Drugs

BACKGROUND AND OBJECTIVE

Oral nucleoside/nucleotide analogues (NAs) have been advocated for chronic hepatitis B (CHB) treatment with good efficacy. However, less attention has been put on their adverse events. Therefore, a Bayesian network meta-analysis (NMA) was performed to evaluate the relative safety of five NAs (lamivudine, adefovir dipivoxil, entecavir, telbivudine, and tenofovir disoproxil fumarate) in CHB treatment among adults.

METHODS

Eligible randomized clinical trials (RCTs) and prospective cohort studies were systematically and thoroughly searched until May 1, 2019. Poisson-prior-based Bayesian NMA was performed to synthesize both direct and indirect evidence with reporting hazard ratios (HRs) and 95% credible intervals (CrIs) for serious adverse events (SAEs) and hepatic/renal impairments.

RESULTS

Thirty-three RCTs and 11 prospective cohort studies were identified. As to SAEs, no statistically significant difference was found of any comparison among five NAs. In terms of hepatotoxicity, lamivudine was safer than telbivudine (HR 0.45; 95% CrI 0.21, 0.85), and entecavir increased the risk by 102% (entecavir vs lamivudine: HR 2.02; 95% CrI 1.19, 3.27).

CONCLUSIONS

The findings from this large NMA could influence clinical practice, and the methodological framework of this study could provide evidence-based support to analyze sparse safety data in the field.

Chemopreventive Effect of Phytosomal Curcumin on Hepatitis B Virus-Related Hepatocellular Carcinoma in A Transgenic Mouse Model

Chronic hepatitis B virus (HBV) infection is a major risk factor for the development of hepatocellular carcinoma (HCC), a leading cause of cancer mortality worldwide. Hepatitis B X protein (HBx) and pre-S2 mutant have been proposed as the two most important HBV oncoproteins that play key roles in HCC pathogenesis. Curcumin is a botanical constituent displaying potent anti-inflammatory and anti-cancer properties without toxic side effects. Phytosomal formulation of curcumin has been shown to exhibit enhanced bioavailability, improved pharmacokinetics, and excellent efficacy against many human diseases. However, effectiveness of phytosomal curcumin for HCC treatment remains to be clarified. In this study, we evaluated chemopreventive effect of phytosomal curcumin on HBV-related HCC by using a transgenic mouse model specifically expressing both HBx and pre-S2 mutant in liver. Compared with unformulated curcumin, phytosomal curcumin exhibited significantly greater effects on suppression of HCC formation, improvement of liver histopathology, decrease of lipid accumulation and leukocyte infiltration, and reduction of total tumor volume in transgenic mice. Moreover, phytosomal curcumin exerted considerably stronger effects on activation of anti-inflammatory PPARγ as well as inhibition of pro-inflammatory NF-κB than unformulated curcumin. Furthermore, phytosomal curcumin showed a comparable effect on suppression of oncogenic mTOR activation to unformulated curcumin. Our data demonstrated that phytosomal curcumin has promise for HCC chemoprevention in patients with chronic HBV infection.

TIPSS for variceal bleeding in patients with idiopathic non-cirrhotic portal hypertension: comparison with patients who have cirrhosis

BACKGROUND

In patients with idiopathic non-cirrhotic portal hypertension (INCPH), the usual recommended strategy for management of variceal bleeding is the same as that in cirrhosis. However, this policy has been challenged by the different natural history between INCPH and cirrhosis.

AIM

To compare outcomes after transjugular intrahepatic portosystemic shunt (TIPSS) between INCPH and cirrhotic patients admitted for variceal bleeding.

METHODS

Between March 2001 and September 2015, 76 consecutive patients with biopsy-proven INCPH undergoing TIPSS for variceal bleeding in a tertiary-care centre were included. 76 patients with cirrhotic portal hypertension receiving TIPSS for variceal bleeding, and matched for age, sex, Child-Pugh class, stent type and index year of TIPSS creation served as controls.

RESULTS

Patients with INCPH, compared to those with cirrhosis, had significantly lower mortality (11% vs 36% at 5 years, adjusted HR, 0.37; 95% CI 0.15-0.87, P = 0.022), overt hepatic encephalopathy (16% vs 33% at 5 years, adjusted HR, 0.35; 95% CI 0.16-0.75, P = 0.007) and hepatic impairment, despite similar rates of further bleeding (33% vs 32% at 5 years, adjusted HR, 0.72; 95% CI 0.36-1.44, P = 0.358), and shunt dysfunction (35% vs 36% at 5 years, adjusted HR, 0.84; 95% CI 0.41-1.72, P = 0.627). These findings were consistent across different relevant subgroups.

CONCLUSIONS

Patients with INCPH treated with TIPSS for variceal bleeding had similar progression of portal hypertension (further bleeding and shunt dysfunction) but fewer complications of liver disease (overt hepatic encephalopathy and hepatic insufficiency) and lower mortality rate compared with cirrhotic patients with comparable liver function.

Management of Hepatitis B Virus Infection: 2018 Guidelines from the Canadian Association for the Study of Liver Disease and Association of Medical Microbiology and Infectious Disease Canada

Hepatitis B virus (HBV) infection is an important public health problem in Canada. In keeping with evolving evidence and understanding of HBV pathogenesis, the Canadian Association for the Study of Liver Disease periodically publishes HBV management guidelines. The goals of the 2018 guidelines are to (1) highlight the public health impact of HBV infection in Canada and the need to improve diagnosis and linkage to care, (2) recommend current best-practice guidelines for treatment of HBV, (3) summarize the key HBV laboratory diagnostic tests, and (4) review evidence on HBV management in special patient populations and include more detail on management of HBV in pediatric populations. An overview of novel HBV tests and therapies for HBV in development is provided to highlight the recent advances in HBV clinical research. The aim and scope of these guidelines are to serve as an up-to-date, comprehensive resource for Canadian health care providers in the management of HBV infection.

Effects of Virologic Response to Treatment on Short- and Long-term Outcomes of Patients With Chronic Hepatitis B Virus Infection and Decompensated Cirrhosis

BACKGROUND & AIMS

Little is known about the effects of antiviral therapy on short- and long-term survival of patients with hepatitis B virus (HBV)-related decompensated cirrhosis. We aimed to determine whether a maintained virologic response (MVR, defined as persistent undetectable HBV DNA during therapy) associates with short-term (6 mo) and long-term (6-120 mo) survival of patients with decompensated cirrhosis.

METHODS

We performed a 10-year observation analysis using data from the Epidemiology and Natural History of Liver Cirrhosis study of patients with decompensated liver cirrhosis in Korea. Of the entire cohort (1595 patients enrolled at onset of decompensation since 2005), our analysis comprised 295 patients who immediately began treatment with entecavir (n = 179) or lamivudine (n = 116) after decompensation. We collected laboratory test results, data on hepatocellular carcinoma (HCC) development, and Child-Turcotte-Pugh and model for end-stage liver disease (MELD) scores. The mean follow-up time was 62.3 ± 36.5 months. The primary end point was time of liver transplant-free survival.

RESULTS

The median survival time was 7.7 years; 60.1% of patients survived for 5 years and 45.7% survived for 10 years without liver transplantation. An MVR was observed in 116 patients (39.3%); these patients had significantly longer times of transplant-free survival than patients without MVR. Survival times associated with the occurrence of HCC; survival of patients without HCC was excellent if they survived the first 6 months after initiation of antiviral therapy, whereas the survival rates of patients with HCC decreased persistently over time. A baseline MELD score above 20 and multiple complications were associated with short-term mortality. MVR was the factor most strongly associated with long-term transplant-free survival. Significantly higher proportions of patients who received entecavir survived 10 years compared with patients who received lamivudine, but no difference was observed among patients with MVRs. Patients with MVRs had significant improvement in hepatic function over time, but nonsignificant reductions in risk of HCC or HCC-related mortality.

CONCLUSIONS

In a 10-year observation study of patients in Korea with HBV-related decompensated cirrhosis, we found baseline MELD score and MVR to entecavir or lamivudine to associate with short- and long-term transplant-free survival. The benefits of an MVR are maintained for up to 10 years even after decompensation, but patients are still at risk for HCC.

Long term outcome of antiviral therapy in patients with hepatitis B associated decompensated cirrhosis

AIM

To investigate survival rate and incidence of hepatocellular carcinoma (HCC) in patients with decompensated cirrhosis in the antiviral era.

METHODS

We used the Korean Health Insurance Review and Assessment. Korea’s health insurance system is a public single-payer system. The study population consisted of 286871 patients who were prescribed hepatitis B antiviral therapy for the first time between 2007 and 2014 in accordance with the insurance guidelines. Overall, 48365 antiviral treatment-naïve patients treated between 2008 and 2009 were included, and each had a follow-up period ≥ 5 years. Data were analyzed for the 1^st decompensated chronic hepatitis B (CHB) and treatment-naïve patients (n = 7166).

RESULTS

The mean patient age was 43.5 years. The annual mortality rates were 2.4%-19.1%, and 5-year cumulative mortality rate was 32.6% in 1^st decompensated CHB treatment-naïve subjects. But the annual mortality rates sharply decreased to 3.4% (2.4%-4.9%, 2-5 year) after one year of antiviral treatment. Incidence of HCC at first year was 14.3%, the annual incidence of HCC decreased to 2.5% (1.8%-3.7%, 2-5 year) after one year. 5-year cumulative incidence of HCC was 24.1%. Recurrence rate of decompensated event was 46.9% at first year, but the annual incidence of second decompensation events in decompensated CHB treatment-naïve patients was 3.4% (2.1%-5.4%, 2-5 year) after one year antiviral treatment. 5-year cumulative recurrence rate of decompensated events was 60.6%. Meanwhile, 5-year cumulative mortality rate was 3.1%, and 5-year cumulative incidence of HCC was 11.5% in compensated CHB treatment-naïve patients.

CONCLUSION

Long term outcome of decompensated cirrhosis treated with antiviral agent improved much, and incidence of hepatocellular carcinoma and mortality sharply decreased after one year treatment.

How can we improve the performance of Model for End-Stage Liver Disease sodium score in patients with hepatitis B virus-related decompensated liver cirrhosis commencing antiviral treatment?

BACKGROUND AND AIM

We aimed to develop a more efficient prognostic model to predict 1-year mortality in patients with hepatitis B virus-related decompensated cirrhosis beginning antiviral treatment.

METHODS

Using Cox regression analysis, survival analyses were performed on 554 patients with decompensated cirrhosis who were followed up from the start of nucleos(t)ide analogue antiviral treatment.

RESULTS

At baseline, ascites and hepatic encephalopathy were found in 78.0% and 18.1% of patients, respectively. Eighty-six events (77 deaths and 9 emergency liver transplants) occurred within the first year of treatment. Severity of ascites, presence of hepatic encephalopathy, and the Model for End-Stage Liver Disease (MELD)-sodium (MELDNa) score were independent risk factors for 1-year mortality. The new prognostic model (the revised MELDNa) constructed by adding ascites and encephalopathy to the MELDNa score significantly improved the area under the receiver operating characteristics curve for predicting 1-year events at baseline compared with the Child-Turcotte-Pugh system, MELD and MELDNa models, and Fontana index (0.905 vs 0.867, 0.843, 0.871, and 0.815, respectively; P < 0.05). Furthermore, repetitive application of revised MELDNa at 0, 1, 2, 3, and 6 months of treatment could predict 81.4% (70/86) of 1-year events, which was significantly (P < 0.05) higher than the sensitivity of the Child-Turcotte-Pugh system (68.6%), MELD (70.9%) and MELDNa (68.6%) scores, and Fontana index (64.0%), achieving similar specificities of ~96%.

CONCLUSIONS

Ascites and encephalopathy should be considered together with the MELDNa score when predicting short-term mortality and planning liver transplant in patients with decompensated hepatitis B virus-related cirrhosis starting antiviral treatment.

Management of chronic hepatitis B before and after liver transplantation

Chronic hepatitis B infection is a global public health problem associated with significant morbidity and mortality. Persistent infection may evolve to liver cirrhosis and hepatocellular carcinoma, and hepatitis B-related liver disease is a common indication for liver transplantation. Patients with advanced liver disease should be treated with antiviral therapy which may result in clinical improvement. The management of patients after liver transplant then focuses on preventing hepatitis B recurrence in the graft. With the introduction of prophylactic treatment, patient and graft survival has improved significantly. In this review, we will discuss the management of patients with hepatitis B-related cirrhosis, both compensated and decompensated. We also review the management of hepatitis B after liver transplantation.

Resistance of ground glass hepatocytes to oral antivirals in chronic hepatitis B patients and implication for the development of hepatocellular carcinoma

Ground glass hepatocytes (GGHs) have been shown to predict the development of hepatocellular carcinoma (HCC). Type I GGH and type II GGH harbor hepatitis B virus (HBV) pre-S1 and pre-S2 deletion mutants, respectively. Whether anti-HBV therapy can inhibit the expression of GGHs and potentially reduce HCC development is explored in this study. Two sets of liver specimens were included: the first contained 31 paired biopsy specimens obtained from chronic HBV patients receiving oral nucleos(t)ide analogue (NA) treatment; the second contained 186 resected liver tissues obtained from HBV-related HCC patients receiving surgery: 82 received NA before surgery and 104 did not. Compared with the baseline biopsy specimens, type I (P=0.527) and type II GGH (P=0.077) were not significantly decreased after 48 weeks of NA treatment in the first set of patients. In the second set, despite suppression of viral load (P<0.001) and periportal necrosis (P=0.006) in treated patients, GGH (P=0.594), cccDNA (P=0.172) and serum pre-S mutants (p=0.401) were not significantly suppressed. A significant decrease of type I (P=0.049) and type II GGH (P=0.029) could only be observed in patients after long duration of treatment (median duration: 4.3 years). In the treated patients, the persisted type II GGH remained an independent variable associated with decreased local recurrence-free survival of HCC (P=0.019) as in non-treated patients (P=0.001). In conclusion, the persistence of GGHs could explain the residual risk of HCC development under anti-HBV treatment. Therefore, intrahepatic GGHs and pre-S mutant are potential additional targets for HCC prevention in patients already receiving anti-HBV treatment.

Viral Oncology: Molecular Biology and Pathogenesis

Oncoviruses are implicated in approximately 12% of all human cancers. A large number of the world's population harbors at least one of these oncoviruses, but only a small proportion of these individuals go on to develop cancer. The interplay between host and viral factors is a complex process that works together to create a microenvironment conducive to oncogenesis. In this review, the molecular biology and oncogenic pathways of established human oncoviruses will be discussed. Currently, there are seven recognized human oncoviruses, which include Epstein-Barr Virus (EBV), Human Papillomavirus (HPV), Hepatitis B and C viruses (HBV and HCV), Human T-cell lymphotropic virus-1 (HTLV-1), Human Herpesvirus-8 (HHV-8), and Merkel Cell Polyomavirus (MCPyV). Available and emerging therapies for these oncoviruses will be mentioned.

EASL 2017 Clinical Practice Guidelines on the management of hepatitis B virus infection

Hepatitis B virus (HBV) infection remains a global public health problem with changing epidemiology due to several factors including vaccination policies and migration. This Clinical Practice Guideline presents updated recommendations for the optimal management of HBV infection. Chronic HBV infection can be classified into five phases: (I) HBeAg-positive chronic infection, (II) HBeAg-positive chronic hepatitis, (III) HBeAg-negative chronic infection, (IV) HBeAg-negative chronic hepatitis and (V) HBsAg-negative phase. All patients with chronic HBV infection are at increased risk of progression to cirrhosis and hepatocellular carcinoma (HCC), depending on host and viral factors. The main goal of therapy is to improve survival and quality of life by preventing disease progression, and consequently HCC development. The induction of long-term suppression of HBV replication represents the main endpoint of current treatment strategies, while HBsAg loss is an optimal endpoint. The typical indication for treatment requires HBV DNA >2,000IU/ml, elevated ALT and/or at least moderate histological lesions, while all cirrhotic patients with detectable HBV DNA should be treated. Additional indications include the prevention of mother to child transmission in pregnant women with high viremia and prevention of HBV reactivation in patients requiring immunosuppression or chemotherapy. The long-term administration of a potent nucleos(t)ide analogue with high barrier to resistance, i.e., entecavir, tenofovir disoproxil or tenofovir alafenamide, represents the treatment of choice. Pegylated interferon-alfa treatment can also be considered in mild to moderate chronic hepatitis B patients. Combination therapies are not generally recommended. All patients should be monitored for risk of disease progression and HCC. Treated patients should be monitored for therapy response and adherence. HCC remains the major concern for treated chronic hepatitis B patients. Several subgroups of patients with HBV infection require specific focus. Future treatment strategies to achieve 'cure' of disease and new biomarkers are discussed.

Pre-S2 Mutant-Induced Mammalian Target of Rapamycin Signal Pathways as Potential Therapeutic Targets for Hepatitis B Virus-Associated Hepatocellular Carcinoma

Chronic hepatitis B virus (HBV) infection is a major risk factor for hepatocellular carcinoma (HCC). Pre-S2 mutant represents an HBV oncoprotein that is accumulated in the endoplasmic reticulum (ER) and manifests as type II ground glass hepatocytes (GGHs). Pre-S2 mutant can induce ER stress and initiate multiple ER stress-dependent or -independent cellular signal pathways, leading to growth advantage of type II GGH. Importantly, the mammalian target of rapamycin (mTOR) signal pathways are consistently activated throughout the liver tumorigenesis in pre-S2 mutant transgenic mice and in human HCC tissues, leading to hepatocyte proliferation, metabolic disorders, and HCC tumorigenesis. In this review, we summarize the pre-S2 mutant-induced mTOR signal pathways and its implications in HBV-related HCC tumorigenesis. Clinically, the presence of pre-S2 mutant exhibits a high resistance to antiviral treatment and carries a high risk of HCC development in patients with chronic HBV infection. Targeting at pre-S2 mutant-induced mTOR signal pathways may thus provide potential strategies for the prevention or therapy of HBV-associated HCC.

The Management of Hepatitis B in Liver Transplant Recipients

Liver transplant (LT) is now an established indication for patients with chronic hepatitis B, mainly because of the development and use of hepatitis B immunoglobulin (HBIG) and oral antivirals for prophylaxis. The combination of low-dose HBIG and antivirals has been considered the standard prophylaxis regimen to prevent post-LT recurrence of hepatitis B. The important remaining issues are related to the long-term cost of HBIG and the risk of escape hepatitis B virus (HBV) mutants. Strategies for prevention of HBV after LT are constantly improving. With the availability of new nucleoside/nucleotide analogues, new post-LT strategies also should emerge.

Entecavir for Patients with Hepatitis B Decompensated Cirrhosis in China: a meta-analysis

Evidence about the clinical effects of entecavir (ETV) for patients with hepatitis B decompensated cirrhosis remain controversial. Therefore, we perform this meta-analysis to assess the treatment outcomes of ETV in participants with hepatitis B decompensated cirrhosis. Relevant studies were identified by searching databases until the March 2016. A random-effects model was used to estimate summary relative risks (RRs) and 95% confidence intervals (CIs). GRADEprofiler3.6 was used to evaluate the quality of the evidence. A total of 26 studies (involving 2040 patients) were included. The quality of the evidence was classified from very low to high by the GRADED approach for all included RCTs. Meta-analysis showed that patients were more likely to experience HBV-DNA loss (RR:1.85, 95%CIs: 1.41 to 2.43, P < 0.0001 at 48 weeks), have normalized alanine aminotransferase levels (ALT) (P = 0.003 at 24 weeks, P = 0.02 at 48 weeks), and have a low mortality rate at 24 weeks (P = 0.003) when treated with ETV. There was no significant different between ETV and the control groups at the total mortality (P = 0.06) and HBeAg seroconversion (P = 0.14). In conclusion, ETV could be the first line therapy for patients with HBV related decompensated cirrhosis, because ETV could reduce the early mortality and move HBV DNA load down.

Characteristics, Diagnosis and Prognosis of Acute-on-Chronic Liver Failure in Cirrhosis Associated to Hepatitis B

The diagnostic and prognostic criteria of acute-on-chronic liver failure (ACLF) were developed in patients with no Hepatitis B virus (HBV) cirrhosis (CANONIC study). The aims of this study were to evaluate whether the diagnostic (CLIF-C organ failure score; CLIF-C OFs) criteria can be used to classify patients; and the prognostic score (CLIF-C ACLF score) could be used to provide prognostic information in HBV cirrhotic patients with ACLF. 890 HBV associated cirrhotic patients with acute decompensation (AD) were enrolled. Using the CLIF-C OFs, 33.7% (300 patients) were diagnosed as ACLF. ACLF was more common in the younger patients and in those with no previous history of decompensation. The most common organ failures were ‘hepatic’ and ‘coagulation’. As in the CANONIC study, 90-day mortality was extremely low in the non-ACLF patients compared with ACLF patients (4.6% vs 50%, p < 0.0001). ACLF grade and white cell count, were independent predictors of mortality. CLIF-C ACLFs accurately predicted short-term mortality, significantly better than the MELDs and a disease specific score generated for the HBV patients. Current study indicates that ACLF is a clinically and pathophysiology distinct even in HBV patients. Consequently, diagnostic criteria, prognostic scores and probably the management of ACLF should base on similar principles.

Pre- and Post-Transplant Antiviral Therapy (HBV, HCV)

BACKGROUND

Hepatitis B virus (HBV)- and hepatitis C virus (HCV)-associated liver cirrhosis is a major indication for liver transplantation. This concise review gives an overview about current interferon (IFN)-free treatment options before and after liver transplantation in HBV- or HCV-associated liver disease.

METHODS

A PubMed database search using the terms hepatitis B, hepatitis C, cirrhosis, and liver transplantation was performed to identify significant clinical studies as well as national and international guidelines.

RESULTS

Studies investigating IFN-free treatment in patients with decompensated HBV as well as in HCV-associated cirrhosis are scarce. Hepatic recompensation during antiviral therapy seems more frequent in patients with HBV than in those with HCV-associated cirrhosis. Graft hepatitis B or C is characterized by an accelerated and unfavorable course. Graft infection prophylaxis is safe and efficacious in HBV-related liver transplantation. Eradication of HCV prior to liver transplantation prevents HCV graft infection, and IFN-free treatment of established HCV graft infection is safe and associated with high sustained virologic response rates.

CONCLUSION

Patients with HBV-associated cirrhosis should be treated prior to liver transplantation, and receive a continuing graft infection prophylaxis thereafter. Patients with HCV-associated decompensated cirrhosis may be considered as candidates for antiviral therapy prior to liver transplantation or may be treated subsequently.

Monotherapy for hepatitis B infection: a review of treatment options

Chronic hepatitis B (CHB) is a global health problem, causing liver failure, cirrhosis and hepatocellular carcinoma. CHB treatment aims to prevent liver-related complication. The treatment of CHB infection includes monotherapy with either interferons (IFNs) or nucleos(t)ide (NUC) analogs. IFNs have moderate antiviral effects, and their use is limited by side effects. With the availability of NUCs, IFN-intolerant and decompensated cirrhotic patients began to be treated. Lamivudine and telbivudine, nucleoside analogs, have low genetic barrier to resistance. Adefovir, a nucleotide analog, has moderate potency and potential nephrotoxicity. Entecavir and tenofovir, with their high potency, high genetic barrier to resistance and favorable safety profile are the standard of care in CHB treatment. Long-term use of NUCs with maintained viral suppression results in a decrease in liver-related complications.

Prolonged use of tenofovir and entecavir in hepatitis B virus-related cirrhosis

BACKGROUND AND AIMS

Limited data is available from India on outcome and efficacy of tenofovir and entecavir in hepatitis B virus (HBV)-related cirrhosis when used for prolonged time. We report the long-term efficacy and outcome of these antiviral drugs in patients with chronic HBV infection, with compensated or decompensated cirrhosis.

METHODS

We retrospectively analyzed laboratory and clinical data of 400 HBV-related cirrhotic patients without access to liver transplantation, who were treated with tenofovir/entecavir therapy, from January 2007 to January 2014. Two hundred and ten (52.5 %) patients had at least one of the components of decompensation at baseline. Two hundred and twenty (55 %) and 180 (45 %) patients were initiated tenofovir and entecavir, respectively. Follow up period was 45 (12-68) months for tenofovir and 36 (11-60) months for entecavir.

RESULTS

At the end of 1 year, levels of HBV DNA <20 IU/mL were achieved in 91.8 % and 88.8 % of patients, and alanine aminotransferase normalized in 54.5 % and 55.5 % of patients who received tenofovir and entecavir, respectively. At the last visit, Child-Turcotte-Pugh scores improved among 29.5 % of patients who received tenofovir, 25 % of those who received entecavir, and remained stable in 61.9 % and 65 % patients, respectively, in both groups. The 5-year cumulative rate of liver decompensation, hepatocellular carcinoma, and cirrhosis-related complications were 3.1 %, 1.9 %, and 2.1 % with an annual incidence of 0.8 %, 0.3 %, and 0.5 % per person-year, respectively.

CONCLUSION

Tenofovir and entecavir were effective and potent drugs for prolonged treatment of HBV cirrhosis and improved the overall clinical course.

Long-term effect of antiviral therapy on disease course after decompensation in patients with hepatitis B virus-related cirrhosis

The effect of viral suppression on long-term disease outcome after decompensation in patients with hepatitis B virus (HBV)-related cirrhosis has not been established. The aim of this study was to determine the long-term effect of antiviral therapy (AVT) in patients with HBV-related decompensated cirrhosis. This was a multicenter, prospective, inception cohort study of 707 patients who presented with first-onset decompensated complications, including 284 untreated and 423 antiviral-treated patients (58 previously treated, 253 with early treatment, and 112 with delayed treatment). The primary endpoint was 5-year liver transplantation (LT)-free survival. Secondary endpoints included virological response (VR) and serological response and improvement in liver function. Despite baseline high HBV activity and worse liver function, antiviral-treated patients had significantly better transplant-free survival than untreated patients (5-year survival rates of 59.7% vs. 46.0%, respectively), with more apparent benefits from antivirals in Child-Turcotte-Pugh class B/C and high-viremia groups. The rate of VR and hepatitis B e antigen seroconversion at 5 years in antiviral-treated patients was 14.2% and 49.1%, respectively. A significant improvement in liver function was observed in treated versus untreated patients, with 33.9% of treated patients delisted for LT. Patients with early treatment had better clinical outcomes than those with delayed treatment. Survival was dependent on antiviral response, being significantly better in responders than in nonresponders or untreated cases. The initial benefit of AVT was negated over time in nonresponders. Antiviral treatment and maintained VR remained independently predictive of survival. The study results were corroborated by propensity score-matching analysis.

CONCLUSION

AVT significantly modifies the natural history of decompensated cirrhosis, improving liver function and increasing survival. The results underscore the importance of promptly administering potent antiviral drugs to patients under consideration for LT.

Management of patients with hepatitis B in special populations

The development of effective nucleos(t)ide analogs (NAs) against hepatitis B virus (HBV) has improved the outcome of patients with chronic hepatitis B (CHB). This review updates issues related to the management of CHB patients included in special populations. Entecavir (ETV) and tenofovir (TDF) represent the currently recommended first-line NAs in patients with HBV decompensated cirrhosis. The combination of HBV immunoglobulin (usually for a finite duration) and NA is considered the standard of care for prophylaxis against HBV recurrence after liver transplantation. TDF is the best choice for hemodialysis patients and in patients with chronic kidney disease with nucleoside resistance. ETV and telbivudine are the preferred options in naïve renal transplant recipients and with low viremia levels, respectively. All hepatitis B surface antigen (HBsAg)-positive candidates should be treated with NAs before renal transplantation to achieve undetectable HBV DNA at the time of transplantation. Conventional interferon or NAs can also be used in children, on the basis of well-established therapeutic indication. Pregnant women at high risk of perinatal transmission could be treated with lamivudine, telbivudine or TDF in the last trimester of pregnancy. HBsAg-positive patients under immunosuppression should receive NA pre-emptively (regardless of HBV DNA levels) up to 12 mo after its cessation. In HBsAg negative, anti-HBc positive patients under immunosuppression, further studies are needed to form a final conclusion; however, it seems that anti-HBV prophylaxis is justified in such patients with hematological diseases and/or for those receiving rituximab-containing regimens, regardless of their anti-HBs or serum HBV DNA status.

Does hepatitis B virus therapy reduce the risk of hepatocellular carcinoma?

INTRODUCTION

Liver cancer is one of the most common cancers. Hepatocellular carcinoma (HCC) represents > 90% of primary liver cancers and is a major global health problem today. Chronic hepatitis B virus (HBV) infection is associated with more than half of HCCs.

AREAS COVERED

Long-term therapy with nucleos(t)ide analogues (NUCs) improves outcomes in HBV-infected patients by slowing the progression of liver disease. It is associated with improvements in histological and clinical outcomes, improved patient survival, reduced need for liver transplantation and improved liver function in patients with decompensated liver disease. This review highlights the results of previous studies conducted on HCC prevention with long-term NUC therapy. Studies include the use of all available drugs in different clinical scenarios, and the comparison between treated and untreated patients.

EXPERT OPINION

NUCs have been studied extensively in HCC prevention. A comprehensive review of the literature has shown that they can be safely and effectively used for this purpose. Despite some discrepancies between studies, most of the evidence favors using NUC therapy for HCC prevention.

Interleukin 1 inhibition with anakinra in adult-onset Still disease: a meta-analysis of its efficacy and safety

BACKGROUND

Anakinra is the first interleukin-1 inhibitor to be used in clinical practice, and recent evidence showed that interleukin-1 plays a pivotal role in the pathogenesis of adult-onset Still disease (AoSD). However, data concerning efficacy with anakinra use in different clinical trials has not been evaluated, and the overall remission of AoSD with anakinra treatment has not been well defined.

METHODS

We conducted a search on Embase, PubMed, and the Cochrane Library for relevant trials. Statistical analyses were conducted to calculate the overall remission rates, odds ratios (OR), and 95% confidence intervals (CI), by using either random effects or fixed effect models according to the heterogeneity.

RESULTS

Of the 273 articles that were identified, 265 were excluded. Eight studies were eligible for inclusion. The overall remission rate and complete remission rate of anakinra in AoSD patients were 81.66% (95% CI: 69.51%-89.69%) and 66.75% (95% CI: 59.94%-75.3%), respectively. Compared with the controls, the use of anakinra was associated with a significant remission in AoSD, with an OR of 0.16 (95% CI: 0.06-0.44, P=0.0005). There were also significant reductions of the dosage of corticosteroid (mean difference =21.19) (95% CI: 13.2-29.18, P<0.0001) from anakinra onset to the latest follow up time. Clinical and laboratory parameters were all improved, and anakinra was well tolerated in patients with AoSD. No evidence of publication bias was observed.

CONCLUSION

Our study has shown that anakinra is effective in remitting the manifestations of AoSD, with reduction of the dose of corticosteroid in patients with AoSD. Further, anakinra therapy was not associated with increased risk of adverse events, and it was well tolerated in patients with AoSD. Further research is still recommended to investigate these findings.

Chronic liver inflammation and liver cancer

Chronic hepadnavirus infection, alcohol abuse, nonalcoholic fatty liver disease and contact with chemical poisons can lead to chronic liver inflammation. Current studies suggest that chronic inflammation of the liver is an important factor contributing to the occurrence, development and prognosis of liver cancer. Liver cancer is highly malignant and has a poor prognosis and high incidence. For better tumor prevention and treatment, it is important to fully understand the relationship between chronic liver inflammation and liver cancer. In this paper, we review recent progress in understanding the relationship between chronic liver inflammation and liver cancer.

New advances in clinical application of fecal microbiota transplantation

The intestinal microbiota is composed of hundreds of millions of microorganisms and plays an important role in maintaining the body's immune function and resisting invasion of pathogenic microorganisms. Intestinal microecological imbalance can cause a variety of external and parenteral diseases. In recent years, fecal microbiota transplantation has achieved good effects in treating those diseases that are caused by Clostridium difficile infection. The therapy can correct intestinal microenvironment disorders, which makes it possible to use the therapy to treat other related diseases caused by microecological imbalance and improve human health. This paper will review recent advances in fecal microbiota transplantation in terms of its history, methods, application in external and parenteral diseases, and adverse reactions.

Antiviral drug resistance increases hepatocellular carcinoma: A prospective decompensated cirrhosis cohort study

AIM: To study the clinical outcome of antiviral therapy in hepatitis B-related decompensated cirrhotic patients.

METHODS: Three hundred and twelve patients with decompensated hepatitis B cirrhosis were evaluated in a prospective cohort. With two years of follow-up, 198 patients in the group receiving antiviral therapy with nucleos(t)ide analogues and 39 patients in the control group without antiviral treatment were analysed.

RESULTS: Among the antiviral treatment patients, 162 had a complete virological response (CVR), and 36 were drug-resistant (DR). The two-year cumulative incidence of hepatocellular carcinoma (HCC) in the DR patients (30.6%) was significantly higher than that in both the CVR patients (4.3%) and the control group (10.3%) (P < 0.001). Among the DR patients in particular, the incidence of HCC was 55.6% (5/9) in those who failed rescue therapy, which was extremely high. The rtA181T mutation was closely associated with rescue therapy failure (P = 0.006). The Child-Pugh scores of the CVR group were significantly decreased compared with the baseline (8.9 ± 2.3 vs 6.0 ± 1.3, P = 0.043).

CONCLUSION: This study showed that antiviral drug resistance increased the risk of HCC in decompensated hepatitis B-related cirrhotic patients, especially in those who failed rescue therapy.

De novo combined lamivudine and adefovir dipivoxil therapy vs entecavir monotherapy for hepatitis B virus-related decompensated cirrhosis

AIM: To compare efficacy of combined lamivudine (LAM) and adefovir dipivoxil (ADV) therapy with that of entecavir (ETV) monotherapy for hepatitis B virus (HBV)-related decompensated liver cirrhosis.

METHODS: A total of 120 naïve patients with HBV-related decompensated cirrhosis participated in this study. Sixty patients were treated with combined LAM and ADV therapy (LAM + ADV group), while the other 60 were treated with ETV monotherapy (ETV group) for two years. Tests for liver and kidney function, alpha-fetoprotein, HBV serum markers, HBV DNA load, prothrombin time (PT), and ultrasonography or computed tomography scan of the liver were performed every 1 to 3 mo. Repeated measure ANOVA and the χ² test were performed to compare the efficacy, side effects, and the cumulative survival rates at 48 and 96 wk.

RESULTS: Forty-five patients in each group were observed for 96 wk. No significant differences in HBV DNA negative rates and alanine aminotransferase (ALT) normalization rates at weeks 48 (χ² = 2.12 and 2.88) and 96 (χ² = 3.21 and 3.24) between the two groups were observed. Hepatitis B e antigen seroconversion rate in the LAM + ADV group at week 96 was significantly higher in the ETV group (43.5% vs 36.4%, χ² = 4.09, P < 0.05). Viral breakthrough occurred in 2 cases (4.4%) by week 48 and in 3 cases (6.7%) by week 96 in the LAM + ADV group, and no viral mutation was detected. In the ETV group, viral breakthrough occurred in 1 case (2.2%) at the end of week 96. An increase in albumin (F = 18.9 and 17.3), decrease in total bilirubin and in ALT (F = 16.5, 17.1 and 23.7, 24.8), reduced PT (F = 22.7 and 24.5), and improved Child-Turcotte-Pugh and the model for end-stage liver disease scores (F = 18.5, 17.8, and 24.2, 23.8) were observed in both groups. The cumulative rates of mortality and liver transplantation were 16.7% (10/60) and 18.3% (11/60) in the LAM + ADV and ETV groups, respectively.

CONCLUSION: Both LAM + ADV combination therapy and ETV monotherapy can effectively inhibit HBV replication, improve liver function, and decrease mortality.

Efficacy of lamivudine combined with adefovir dipivoxil versus entecavir monotherapy in patients with hepatitis B-associated decompensated cirrhosis: A meta-analysis

Whether the combination of lamivudine (LAM) plus adefovir (ADV) de novo is more effective than entecavir (ETV) monotherapy in patients with HBV-associated decompensated cirrhosis is still controversial. We searched seven randomized controlled trials that included 411 patients in this meta-analysis. There are 205 and 206 patients in these two groups separately. The pooled risk ratio (RR) and mean difference (MD) were used to assess the treatment effects. ETV monotherapy significantly improved Child-Turcotte-Pugh (CTP) scores (MD = 0.33, 95%CI [0.21-0.44], P < .00001), and was associated with lower rates of serum creatinine increase compared LAM + ADV combination therapy (RR = 4.76, 95%CI [1.11-20.33], P = .04) at 48 weeks. The reduction of alanine aminotransferase (ALT) levels, HBV DNA levels, the rate of ALT normalization, undetectable HBV DNA, HBV e antigen (HBeAg) loss, HBeAg seroconversion and mortality were similar between the two groups. ETV is more effective than LAM + ADV in improving CTP scores at 48 weeks. Both of the LAM + ADV and ETV had similar efficacy in improving virological and biochemical parameters at 48 weeks of follow-up. Furthermore, use of these agents in decompensated HBV patients was generally safe and well tolerated at 48 weeks. However, the nephrotoxicity of ADV, and the potential adverse effects of ETV should be considered and monitored during prolonged therapy.