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Background: Direct‐acting antiviral (DAA) therapies for hepatitis C virus infection (HCV) lead to excellent rates of sustained virological response (SVR). However, loss to follow‐up (LTFU) for SVR testing remains a challenge. We examine factors associated with LTFU in a real‐world setting. Methods: Adults who received DAA therapy for HCV in one of 26 centers across Australia during 2016–2021 were followed up for 2 years. Data sources included the patient medical records and the national Pharmaceutical and Medicare Benefits Schemes. Linkage to Medicare provided utilization data of other health‐care providers and re‐treatment with DAAs. LTFU was defined as no clinic attendance for SVR testing by at least 52 weeks after DAA treatment commencement. Multivariable logistic regression assessed factors associated with LTFU. Results: In 3619 patients included in the study (mean age 52.0 years; SD = 10.5), 33.6% had cirrhosis (69.4% Child–Pugh class B/C), and 19.3% had HCV treatment prior to the DAA era. Five hundred and fifteen patients (14.2%) were LTFU. HCV treatment initiation in 2017 or later (adj‐OR = 2.82, 95% confidence interval [CI] 2.25–3.54), younger age (adj‐OR = 2.63, 95% CI 1.80–3.84), Indigenous identification (adj‐OR = 1.99, 95% CI 1.23–3.21), current injection drug use or opioid replacement therapy (adj‐OR = 1.66, 95% CI 1.25–2.20), depression treatment (adj‐OR = 1.49, 95% CI 1.17–1.90), and male gender (adj‐OR = 1.31, 95% CI 1.04–1.66) were associated with LTFU. Conclusions: These findings stress the importance of strengthening the network of providers caring for patients with HCV. In particular, services targeting vulnerable groups of patients such as First Nations Peoples, youth health, and those with addiction and mental health disorders should be equipped to treat HCV. [ABSTRACT FROM AUTHOR]

Introduction: Hepatocellular carcinoma (HCC) is a leading cause of cancer deaths both globally and in Australia. Surveillance for HCC in at‐risk populations allows diagnosis at an early stage, when potentially curable. However, most Australians diagnosed with HCC die of the cancer or of liver disease. In the changing landscape of HCC management, unique challenges may lead to clinical practice variation. As a result, there is a need to identify best practice management of HCC in an Australian context. This consensus statement has been developed for health professionals involved in the care of adult patients with HCC in Australia. It is applicable to specialists, general medical practitioners, nurses, health coordinators and hospital administrators. Methods and recommendations: This statement has been developed by specialists in hepatology, radiology, surgery, oncology, palliative care, and primary care, including medical practitioners and nurses. The statement addresses four main areas relevant to HCC management: epidemiology and incidence, diagnosis, treatment, and patient management. A modified Delphi process was used to reach consensus on 31 recommendations. Principal recommendations include the adoption of surveillance strategies, use of multidisciplinary meetings, diagnosis, treatment options and patient management. Changes in management as a result of this statement: This consensus statement will simplify HCC patient management and reduce clinical variation. Ultimately, this should result in better outcomes for patients with HCC. [ABSTRACT FROM AUTHOR]

The impact of hepatitis C virus (HCV) cure on survival in patients with HCV‐related hepatocellular carcinoma (HCC) has been examined, although many studies have been subject to survivor treatment selection bias. We assessed the impact of HCV cure before HCC diagnosis on overall survival. Patients with HCV‐related HCC at three referral hospitals in Australia were included retrospectively (January 2008 to December 2019). The risk of death following HCC diagnosis among patients who achieved HCV cure before HCC diagnosis was compared to patients who were viraemic at diagnosis. Among 422 patients with HCV‐related HCC, 101 (24%) achieved HCV cure before HCC diagnosis, 37 with interferon (IFN) and 64 with direct‐acting antiviral (DAA) therapy. Patients with HCV cure were more likely to have no cirrhosis or Child‐Pugh A liver disease (83% vs. 66%, p =.002), surveillance detection (71% vs. 48%, p <.001), HCC stage O or A (64% vs. 45%, p <.001) and receive curative initial HCC management (51% vs. 28%, p <.001), compared with patients who were viraemic at diagnosis. The 5‐year overall survival was 51% in the HCV cure group and 22% in the viraemic group. In adjusted analysis, risk of death was lower in patients with HCV cure before HCC diagnosis compared with patients who were viraemic at diagnosis (adjusted hazard ratio: 0.63; 95% CI: 0.44–0.91; p =.013). Patients with HCV‐related HCC who have achieved HCV cure before HCC diagnosis have improved overall survival compared with patients who were viraemic at diagnosis. [ABSTRACT FROM AUTHOR]

A number of antiviral agents used against Human Immunodeficiency Virus (HIV) infection and hepatitis B virus (HBV) mono or co-infection have been associated with real nephrotoxicity (including tenofovir disoproxil fumarate (TDF), atazanavir, indinavir and lopinavir) or apparent changes in renal function (e.g. cobicistat, ritonavir, rilpivirine and dolutegravir). Patients with HIV are at higher risk of acute and chronic renal dysfunction, so baseline assessment and ongoing monitoring of renal function is an important part of routine management of patients with HIV. Given the paucity of evidence in this area, we sought to establish a consensus view on how routine monitoring could be performed in Australian patients on ART regimens, especially those involving TDF. A group of nephrologists and prescribers (an HIV physician and a hepatologist) were assembled by Gilead to discuss practical and reasonable renal management strategies for patients particularly those on TDF-based combination regimens (in the case of those with HIV-infection) or on TDF-monotherapy (in the case of HBV-mono infection). The group considered which investigations should be performed as part of routine practice, their frequency, and when specialist renal referral is warranted. The algorithm presented suggests testing for serum creatinine along with plasma phosphate and an assessment of urinary protein (rather than albumin) and glucose. Here we advocate baseline tests of renal function at initiation of therapy. If creatinine excretion inhibitors (e.g. cobicistat or rilpivirine) are used as part of the ART regimen, we suggest creatinine is rechecked at 4 weeks and this value used as the new baseline. Repeat testing is suggested at 3-monthly intervals for a year and then at least yearly thereafter if no abnormalities are detected. In patients with abnormal baseline results, renal function assessment should be performed at least 6 monthly. In HBV mono-infected patients advocate that a similar testing protocol may be logical. [ABSTRACT FROM AUTHOR]

Issue addressed: Increasing the uptake of hepatitis C treatment by injecting drug users (IDUs) is a key strategy in addressing the escalating disease burden of chronic hepatitis C virus (HCV) infection in Australia. Little is known about barriers to treatment uptake among culturally diverse groups of IDUs. Indo-Chinese IDUs represent a marginalised group with high rates of incident and prevalent HCV infection. Methods: An ethnographic study was conducted to explore barriers to HCV treatment uptake experienced by Indo-Chinese IDUs and inform the development of policies and practices that promote access to treatment. Following a baseline interview, participants (n=23) received a brief intervention about HCV treatment and an offer of facilitated referral to a tertiary liver clinic. Follow-up interviews were conducted three and six months post intervention, to explore decision-making about treatment-seeking and experiences accessing the clinic. Results: While 'getting rid of' HCV was regarded as highly desirable, only three participants were assessed for treatment. For most participants, seeking treatment was not seen as feasible given social and structural barriers related to their drug use, lack of resources and support. Institutional barriers included the clinic's administrative procedures, limited flexibility and apparent reluctance to consider current IDUs suitable candidates for treatment. Conclusions: Resources and support, flexible, low threshold approaches to assessment and a willingness to provide treatment to current IDUs, would promote equitable access to treatment among these groups. [ABSTRACT FROM AUTHOR]

The article focuses on a study which examined the rate of perinatal hepatitis B virus (HBV) transmission in Australia, along with the maternal virological factors associated with risk of transmission. The study included pregnant women attending Sydney South West Area Health Service antenatal clinics who were hepatitis B surface antigen (HBsAg) positive, and their babies. It discovered that HBV perinatal transmission is prevalent in hepatitis B "e" antigen (HBeAg)-positive mothers with very high viral loads.

Viral hepatitis contributes to significant morbidity and mortality worldwide. While acute infection may be self-limiting, unrecognised chronic infection and under-utilisation of guideline-based approaches to therapy contribute to increasing rates of cirrhosis, hepatocellular carcinoma and death. Our aim was to review the current evidence for screening, diagnosis and treatment in hepatitis A to E. Evidence for this review was sourced from international and Australian guidelines and high-quality clinical trials. MEDLINE was searched using structured key word strategy and retrieved articles were reviewed methodically to inform a brief and up-to-date synopsis of hepatitis A to E. We share some of the recent developments in viral hepatitis, specifically the new therapies for hepatitis C. Direct-acting antiviral therapies are safe, well-tolerated and effective. Subsidies allow access for all Australians with most strains of hepatitis C. We outline evidence underpinning efficacy and safety of treatment for hepatitis B, while clarifying some of the nuances in the setting of pregnancy and immunosuppression. We provide a simplified concept to facilitate understanding of the five phases of hepatitis B; practical for real-world setting. Hepatitis A to E is a broad topic, not all aspects of these viruses can be covered in this short review. We provided suggestions for evidence based guidelines, which are a suitable supplement to this article. [ABSTRACT FROM AUTHOR]

Introduction: Alcohol use is common in patients with chronic hepatitis C virus (HCV) infection. We examined the impact of alcohol use on direct-acting antiviral (DAA) therapy outcome and the clinical course of liver disease and 2-year survival for patients receiving HCV DAA therapy., Methods: Adults (n = 2624) recruited from 26 Australian hospital liver clinics during 2016-2021 were followed up for 2 years. Risky alcohol use was defined by a combination of self-report (≥40 g/day of ethanol), physician-reported history of problematic alcohol use, and anti-craving medication prescription via population-based database linkage. We examined factors associated with advanced liver fibrosis and survival using multivariable logistic and Cox regression., Results: Among 1634 patients (62.3%) with risky alcohol use, 24.6% reported consuming ≥40 g/day of alcohol, 98.3% physician-reported problematic alcohol use; only 4.1% were dispensed naltrexone/acamprosate. One hundred and forty-three patients with cirrhosis reported ≥40 g/day of alcohol, 6 (4.3%) were prescribed naltrexone/acamprosate. Risky alcohol use was associated with advanced fibrosis (adjusted-odds ratio 1.69, 95% confidence interval 1.32-2.17) and patients were over-represented for cirrhosis (45.1% vs. 25.6% in no-risky alcohol use [p < 0.001]) and hepatocellular carcinoma (5.7% vs. 2.5% [p < 0.001]). Sustained viral response (p = 0.319) and 2-year survival (adjusted-hazard ratio 1.98, 95% confidence interval 0.84-4.63) after DAA therapy were not associated with risky alcohol use., Discussion and Conclusions: Risky alcohol use in HCV patients was prevalent, but did not reduce HCV cure. Treatment for alcohol dependence was low. Risky alcohol use may be under-recognised in liver clinics. Better integration of addiction medicine into liver services and increased resourcing and addiction medicine training opportunities for hepatologists may help address this., (© 2024 The Author(s). Drug and Alcohol Review published by John Wiley & Sons Australia, Ltd on behalf of Australasian Professional Society on Alcohol and other Drugs.)

Background: Viral hepatitis, alcohol-related liver disease (ARLD) and nonalcoholic fatty liver disease (NAFLD) are the main risk factors for hepatocellular carcinoma (HCC) in many countries. In Australia, given the access to hepatitis C virus (HCV) direct-acting antiviral (DAA) therapy since 2016, a temporal change in HCC aetiology was hypothesized. This study evaluated the temporal change in the aetiology and characteristics of HCC in New South Wales (NSW)., Methods: Patients diagnosed with HCC, admitted to three public hospitals in NSW between 2008 and 2021, were included in the analyses. We assessed the annual frequency of each HCC aetiology and the distribution of HCC characteristics in participants., Results: Among 1370 patients, the most common HCC etiologies were HCV (n = 483, 35%), ARLD (n = 452, 33%), NAFLD (n = 347, 25%) and hepatitis B virus (n = 301, 22%). The proportion of HCV-related HCC was the highest in 2011-2016 (41%) and significantly declined to 30% in 2017-2021 (odds ratio [OR], 0.53 [95% confidence interval (CI), 0.35-0.79]; P = 0.002). The proportion of HCC diagnosed at an early stage (Barcelona Clinic Liver Cancer stage O/A) increased from 41% in 2008-2009 to 56% in 2020-2021 (OR per annum, 1.05 [95% CI, 1.02-1.08]; P = 0.002), and the proportion of patients receiving potentially curative HCC management increased from 29% in 2008-2009 to 41% in 2020-2021 (OR per annum, 1.06 [95% CI, 1.03-1.10]; P < 0.001)., Conclusion: The contribution of HCV to HCC burden has been decreasing in the DAA era, suggesting the role of HCV elimination in decreasing HCC risk. Increasing frequency of less advanced HCC at diagnosis over time suggests improved HCC surveillance., (© 2023 Royal Australasian College of Physicians.)

Background: First Nations Peoples of Australia are disproportionally affected by hepatitis C (HCV) infection. Through a prospective study we evaluated the outcome of direct-acting antiviral (DAA) therapy among First Nations Peoples with HCV infection., Methods: Adults who initiated DAA therapy at one of 26 hospitals across Australia, 2016-2019 were included in the study. Clinical data were obtained from medical records and the Pharmaceutical and Medicare Benefits Schemes. Outcomes included sustained virologic response (SVR) and loss to follow-up (LTFU). A multivariable analysis assessed factors associated with LTFU., Results: Compared to non-Indigenous Australians (n = 3206), First Nations Peoples (n = 89) were younger (p < 0.001), morel likely to reside in most disadvantaged (p = 0.002) and in regional/remote areas (p < 0.001), and had similar liver disease severity. Medicines for mental health conditions were most commonly dispensed among First Nations Peoples (55.2% vs. 42.8%; p = 0.022). Of 2910 patients with follow-up data, both groups had high SVR rates (95.3% of First Nations Peoples vs. 93.2% of non-Indigenous patients; p = 0.51) and 'good' adherence (90.0% vs. 86.9%, respectively; p = 0.43). However, 28.1% of First Nations Peoples were LTFU vs. 11.2% of non-Indigenous patients (p < 0.001). Among First Nations Peoples, younger age (adj-OR = 0.93, 95% CI 0.87-0.99) and treatment initiation in 2018-2019 vs. 2016 (adj-OR = 5.14, 95% CI 1.23-21.36) predicted LTFU, while higher fibrosis score was associated with better engagement in HCV care (adj-OR = 0.71, 95% CI 0.50-0.99)., Conclusions: Our data showed that First Nations Peoples have an equivalent HCV cure rate, but higher rates of LTFU. Better strategies to increase engagement of First Nations Peoples with HCV care are needed., (© 2022. The Author(s).)

Background & Aims: Antipartum antiviral therapy in the setting of high viral load is recommended to prevent mother-to-child transmission of hepatitis B although recommended viral load cut-offs vary. Quantitative HBsAg has been proposed as an alternative screening strategy to identify high viral load in this setting. Guidelines suggest testing all infants for vaccine response and infection. We set out to re-examine viral load cut-offs; the predictive value of quantitative HBsAg and the need for follow-up infant testing in our cohort., Methods: A retrospective cohort study of 469 HBsAg positive mother-baby pairs from 2 tertiary hospitals in Sydney was performed. Antiviral therapy (lamivudine or tenofovir disoproxil fumarate) was offered to women with viral load ≥6 log 10  IU/mL (high) from 32 weeks gestation. Transmission and vaccine response was analysed according to viral load. The utility of quantitative HBsAg in identifying high viral load was examined., Results: Mother-to-child transmission only occurred in setting of high viral load, in 0.85% (1/117) of those who received antiviral therapy and in 8.66% (2/23) of those who chose not to. Quantitative HBsAg did not accurately identify high-risk mothers HBV DNA ≥6 log 10  IU/mL. Successful infant vaccine response was 98.7% overall, and 99.4% when viral load was <6 log 10  IU/mL., Conclusion: Antiviral therapy initiated at 32 weeks when maternal viral load is ≥6 log 10  IU/mL almost completely abrogates transmission. Quantitative HBsAg does not reliably predict high viral load. When maternal viral load is <6 log 10  IU/mL, high vaccine efficacy and zero transmission suggests testing infants is of little value., (© 2018 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)

Background: Understanding the impact of hepatitis C virus (HCV) infection in patients with end-stage renal disease before and after renal transplantation requires more data. We examined the outcomes of HCV antibody positive (HCVAb+) dialysis and renal transplant patients using the Australian and New Zealand Dialysis and Transplant registry., Methods: Two cohorts of dialysis (n=23,046) and transplant (n=7572) patients were identified. Survival outcomes, causes of mortality, and causes of graft failure were examined., Results: Dialysis Cohort: 362 (1.6%) were HCVAb+ve. The cause of end-stage renal disease in the HCVAb+ve group was more likely to be glomerulonephritis or diabetes. Survival figures were similar at 5 years (48% vs. 47%) and 10 years (22% and 20%) for HCVAb+ve and HCVAb negative (HCVAb-ve) groups; however, the adjusted hazard ratio (aHR) for mortality was increased, 1.25 (95% confidence interval [CI], 1.07-1.46), for the HCVAb+ve cohort. Liver failure was more likely. Renal Transplantation Cohort: 140 (1.8%) were HCVAb+ve. Patient survival among HCVAb+ve and HCVAb-ve groups was 77% vs. 90% and 50% vs. 79% at 5 and 10 years, respectively. The aHR for patient death was 2.38 (95%CI, 1.69-3.37). Higher rates of death due to cardiovascular disease (aHR=2.74), malignancy (aHR=2.52), and hepatic failure (aHR=22.1) were observed. The aHR for graft loss was 1.71 (95%CI, 1.28-2.29) for HCVAb+ve patients; and glomerulonephritis, chronic allograft neuropathy, and death were more frequent causes of graft failure., Conclusion: On dialysis, HCVAb+ve patients had a slightly worse outcome. After renal transplantation, the HCVAb+ve cohort had a markedly worse patient and graft outcome. The impact of viral eradication on these outcomes is unknown.