A multicentre, observational study on demographic and disease characteristics of patients seeking care for chronic hepatitis C in Belgium in 2016

BACKGROUND AND STUDY AIMS

Direct-acting antivirals provide interferon-free treatments for chronic hepatitis C (CHC) virus infection. In Belgium, in 2016, access to these agents was limited to patients with advanced liver fibrosis stages F3 and F4. This study is the first to describe Belgium's patient population ineligible for interferon-free treatment.

PATIENTS AND METHODS

This was an observational, cross-sectional, multicentre study that enrolled adult patients with CHC ineligible for interferon-free treatment. Patient data recorded at a single visit included demographic data, disease characteristics, comorbidities, co-medications, treatment status, and laboratory data.

RESULTS

Three hundred and three patients from 16 centres in Belgium were included in the statistical analysis. On average, patients were aged 53.5 years and 50.2% were women ; 94.1% had health insurance and 99.0% resided in Belgium. The current hepatitis C virus (HCV) infection was the first infection for 96.0% of patients and the mean time since infection was 20.0 years. Liver fibrosis stage was F0 for 23.7%, F0/F1 or F1 for 38.3%, F1/F2 or F2 for 25.8%, F3 for 7.1%, and F4 for 5.1% of patients ; 28.4% of patients were CHC treatment-experienced. The main reason for ineligibility for interferon-free treatment was lack of reimbursement (84.8%). Other reasons included no treatment urgency or medical decision to wait (27.1%), waiting for future treatment option (8.3%), and no social insurance coverage (3.6%).

CONCLUSIONS

This study provides recent data on the CHC patient population and disease characteristics in Belgium that could help medical communities and government agencies manage CHC disease burden.

Nodular Regenerative Hyperplasia in HIV-positive patients : a case series and review of the literature

Nodular regenerative hyperplasia (NRH) is a well-described condition that leads to non-cirrhotic portal hypertension and is histologically characterised by a nodular transformation of the liver without fibrosis. It seems to be a consequence of obliterative portal venopathy of small hepatic veins. Its precise aetiology remains to be clearly determined. NRH was reported to occur in HIV-positive patients ten years ago. In this article, three consecutive clinical cases of HIV-related NRH were identified in a high volume reference centre of HIV positive patients and are presented. Clinical, diagnostic aspects and strategies for management of this under-diagnosed medical condition in the HIV population are also developed.

Achieving WHO recommendations for Hepatitis C Virus Elimination in Belgium

BACKGROUD

The World Health Organization (WHO) released updated guidelines for the screening, care and treatment of patients with chronic hepatitis C virus (HCV) infection.

METHODS

A previously described HCV disease burden model was used to develop a "WHO scenario" to achieve the WHO recommendations of a 90% reduction in incidence and 65% reduction in liver-related deaths. After determining the steps necessary to achieve this goal, the impact of realistic constraints was modeled.

RESULTS

In 2015, there were 66.200 viremic infections, with 43% diagnosed and 1.350 treated. In order to reduce new infections, treatment must be extended to ≥ F0 patients, including people who inject drugs and other individuals at risk of transmitting HCV. -Additionally, diagnosis and treatment of 3.030 and 4.060 patients, respectively, would be required. The largest attenuation of the WHO scenario would occur if no new cases were diagnosed after 2018 (300% more viremic infections by 2030). Limiting treatment to ≥ F2 patients or treating fewer patients (3.000) would result in 220% or 140% more viremic cases, respectively, compared with the WHO scenario.

CONCLUSION

Achieving the WHO guidelines in Belgium requires a coordinated effort to scale up treatment and prevention efforts and to allow treatment access to patients of all fibrosis stages. A scale-up of treatment, however, requires patients to be both diagnosed and linked to care, suggesting a need for increased awareness and expanded screening efforts. Finally, prevention of new HCV infections requires a comprehensive understanding of the population at risk of transmitting HCV.

Mitigating the burden of hepatitis C virus among people who inject drugs in Belgium

BACKGROUD AND AIMS

In 2010, there were an estimated 10 100 PWID in Belgium and 43% (34%-57%) were HCV infected. Understanding HCV transmission dynamics in high-risk populations and assessing the potential impact of improved HCV treatment strategies requires robust epidemiological data and mathematical modeling.

METHODS

CV transmission was modeled using cohorts to track HCV incidence and prevalence among active PWID in the general PWID population, OST and NSP. Model assumptions were derived from published literature and expert consensus. The relative impact of increasing the number of PWID treated with new oral DAAs was considered.

RESULTS

If the current transmission paradigm continues, there will be 2645 HCV-infected PWID in 2030. Annually treating 30 (1% of 2015 population) or 120 (4% of 2015 population) HCV-infected PWID with oral DAAs will result in 5% and 25% reductions, respectively, in HCV-infected PWID by 2030. Treating 370 PWID annually (12.5% of 2015 population) will result in a > 90% reduction by 2030.

CONCLUSION

Treating a small number of PWID can result in substantial reduction in HCV prevalence in this population ; however, high levels of treatment are necessary to reduce the viral pool and thus the risk of secondary infections. This analysis supports implementation of a screening and treatment strategy among PWID when combined with an expansion of harm reduction programs.

Characteristics, treatment, and virologic responses of chronic hepatitis C patients treated with peginterferon alfa-2a and ribavirin in belgium: a sub-analysis of the PROPHESYS study

BACKGROUND AND STUDY AIMS

PROPHESYS was a prospective, international cohort study of monoinfected, treatment-naive chronic hepatitis C patients treated with a combination of peginterferon alfa-2a or alfa-2b and ribavirin.It included worldwide 7,163 patients from 19 countries (including 384 patients from Belgium alone) and demonstrated that sustained virologic response rates in the real world were similar to those achieved in well-controlled clinical trials. The objective of this sub-analysis was to present an overview of the baseline characteristics, anti-hepatitis C drug treatment, and virologic responses of the patients treated in Belgium, infected with HCV genotype 1, 2, 3, or 4, and administered pegin-terferon alfa-2a. Moreover, the impact of ribavirin dosage on the response to treatment was studied.

PATIENTS AND METHODS

356 patients were included in this sub-analysis. All variables were summarized using descriptive statistics.

RESULTS

Compared to the published data of the whole study population (1), the Belgian data presented some significant differences in terms of genotype distribution and response to treatment (e.g. lower prevalence of HCV genotype 1 infection, lower virologic response rates in HCV genotype 2 patients). Deviations from existing recommendations were identified (e.g. higher dose of ribavirin in HCV genotype 2 or 3 patients). Patients who received less than 80% of the target dose of ribavirin experienced a significantly weaker response to treatment.

CONCLUSION

This sub-analysis provided an interesting profile of the Belgian experience in the treatment of chronic hepatitis C.

Barriers to liver transplantation in HIV infected patients

OBJECTIVES

Liver disease is one of the most frequent causes of non AIDS related deaths in HIV patients and transplantation has become a therapeutic option. In spite of this progress, no liver transplantation has ever been recorded for the patients of the Brussels Saint-Pierre HIV Cohort. The aim of this study is to identify the barriers to liver transplantation in HIV patients that arise in our practice.

METHODS

All patients enrolled in the Brussels Saint-Pierre HIV Cohort presenting a theoretical indication for liver transplantation, as recommended by the AASLD, between 01/01/2002 and 01/07/2010 were considered. The reasons for not retaining these patients as candidates for liver transplantation were classified as HIV or non-HIV related.

RESULTS

Nineteen patients were identified. All patients presented an HBV and/or HCV co-infection. Indication for liver transplantation was based on first severe complication of cirrhosis for 15 patients, hepatocellular carcinoma fulfilling the Milan criteria for 2 and chronic liver failure for 2 others. Three patients could have been transplantation candidates but only one was enlisted and died prior to transplantation whilst alternative treatments were chosen for the remaining two. Among the non candidates, 5 couldn't be enlisted for HIV-related reasons, 3 for non HIV related reasons and 8 on multifactorial grounds; non adherence to treatment, alcohol abuse, psychiatric disease and hepatotoxicities playing key roles. Eleven patients died, all within 12 months of their first major complication of cirrhosis.

CONCLUSIONS

The undeniable medical progress that liver transplantation represents for HIV-infected individuals is, in practise, limited; only a minority of patients with an indication of liver transplant will fulfill the necessary criteria for enlistment. General awareness of this issue and early referral are essential to optimize pre-transplant management and increase the number of HIV patients developing ESLD that will be able to benefit from this cure.

[Hepatitis B: screening and treatment]

Hepatitis B virus infection is more prevalent than human immunodeficiency virus (HIV) infection and hepatitis C virus infection. Chronic hepatitis B (CHB) is a serious disease that can lead to severe complications as cirrhosis and hepatocellular carcinoma. The vast majority of people with chronic HBV infection are asymptomatic and as many as 2 in 3 people do not know they are infected. This is an indication of under screening by healthcare professionals. However, early treatment and intervention can prevent progression of liver disease. HBV infection is a vaccine-preventable disease. Until recently, there were few treatment options for patients with CHB, but now there are a number of antiviral agents available that are both effective against hepatitis B virus (HBV) and tolerable for the patient. This review paper attempts to provide some answers regarding the prevention, diagnosis and treatment of hepatitis B.

Clinical trial: a randomized trial of pegylated-interferon-alpha-2a plus ribavirin with or without amantadine in treatment-naïve or relapsing chronic hepatitis C patients

BACKGROUND

The combination therapy of pegylated-interferon-alpha2a plus ribavirin is considered as the standard of care for patients with chronic hepatitis C. A sustained viral response is obtained in 40-50% of naïve patients with genotype 1 and in around 80% of naïve patients with genotype 2 or 3.

AIM

To assess whether amantadine, added to the conventional combination therapy, could improve the treatment efficacy.

METHODS

In all, 630 patients (intent-to-treat population) with chronic hepatitis C were randomized into two groups: 316 patients (treatment group) received pegylated-interferon-alpha2a (180 microg once weekly) plus ribavirin (1000-1200 mg/daily) with amantadine (200 mg/daily); 314 patients (control group) received pegylated-interferon-alpha2a (180 microg once weekly) plus ribavirin (1000-1200 mg/daily) without amantadine. The duration of the treatment was 48 weeks for genotypes 1, 4, 5 and 6, and 24 weeks for genotypes 2 and 3.

RESULTS

There was no statistically significant difference between treatments groups for any of the variables tested for. Subgroups of patients likely to take advantage of the addition of amantadine were not identified.

CONCLUSIONS

This large study definitely excludes the role of amantadine in addition of conventional combination therapy in the treatment of chronic hepatitis C patients.

Issues in managing patients with chronic hepatitis C in public hospitals

Public hospitals in Belgium are taking care of a disfavoured people such as drug addicts, alcoholics, patients with low income and people referred by refugee centres. Many of these patients are at risk of hepatitis C. The medical and paramedical staff is facing numerous problems in taking care of these patients. Requests of hepatologists from public hospitals are a more effective psychosocial management, an increase of the framing in these hospitals, and a more rapid process of reimbursement of medication for treatment of hepatitis C, allowing to treat the patients according to international standards.

Long-term terlipressin administration improves renal function in cirrhotic patients with type 1 hepatorenal syndrome: a pilot study

BACKGROUND

Hepatorenal syndrome (HRS) is a severe complication of liver cirrhosis. Recently, ornipressin, a potent splanchnic vasoconstrictor, was reported to improve renal function in patients with HRS. However, this treatment is associated with a high incidence of vascular complications. Terlipressin is thought to be as effective as ornipressin with less systemic complications.

AIMS

To evaluate the effectiveness and safety of terlipressin administration in cirrhotic patients with type 1 HRS.

PATIENTS

Twelve consecutive patients fulfilling HRS criteria of the International Ascites Club were included in the study. Median plasma creatinine and sodium, urine volume and sodium before treatment were 3.4 mg% (2.5-4.0); 127 mEq/l (124-130), 500 ml/24 h (100-1031) and 7 mEq/24 h (1-17).

METHODS

Terlipressin was administered i.v. 2 mg bid in 8 patients and tid in 4 others for at least one week and up to 2 months.

RESULTS

After one week of treatment median plasma creatinine decreased to 1.8 mg% (1.3-2.1) together with an increase in urine volume, sodium excretion, creatinine and free-water clearance. Three patients underwent successful liver transplantation with a near normal renal function after 34, 36 and 111 days. The 9 other patients died during follow-up (4 from sepsis, 2 from digestive bleeding and 3 from liver failure). No ischaemic complications were encountered during the treatment.

CONCLUSIONS

Long-term terlipressin administration is safe and effective to control type 1 HRS. However, it does not cure the underlying disease and therefore, may only be considered as a bridge to a definitive treatment as liver transplantation.