Hepatitis C virus infection in Spain: Challenges in the track to elimination

The Efficiency of Increased HCV Testing and Treatment Strategies in Spain to Achieve Elimination Goals

BACKGROUND

In 2015, Spain launched a national eradication strategy for hepatitis C virus (HCV), resulting in the highest treatment rate in Europe and substantial reductions in HCV prevalence. However, to achieve the goal of HCV elimination, it is necessary to scale-up the diagnosis, treatment, and management of HCV infection.

OBJECTIVE

Our aim was to assess the prevalence, incidence, and cost effectiveness of scaling-up compared with status quo scenarios.

METHODS

A compartmental dynamic transmission model was developed comprising of a cascade of care and a liver progression module. Cost and quality-of-life inputs were sourced from the literature. Key outcomes were the prevalence and incidence of HCV and the incremental cost per quality-adjusted life-year (QALY) and per life-year (LY). Outcomes for a hypothetical elimination strategy were compared with the status quo.

RESULTS

The base-case analysis found that scaling-up testing and treatment reduced both the prevalence and incidence of HCV over time, resulting in incremental costs per QALY and LY of €13,291 and €12,285 respectively, compared with the status quo. The main drivers of the cost-effectiveness results included cost of diagnosis, cost of treatment, proportion of people who are unaware, percentage of population who inject drugs, and calibration parameters related to HCV infection prevalence.

CONCLUSIONS

This analysis demonstrated that scaling-up testing and treatment with direct-acting antivirals may be an efficient strategy for reducing the incidence and prevalence of HCV and may help achieve HCV elimination goals in Spain.

Prevalence of Hepatitis C Virus Infection, Genotypes and Subtypes in Migrants from Pakistan in Barcelona, Spain

Background

Hepatitis C virus (HCV) is a major cause of chronic liver infection with 71 million people infected worldwide. Pakistan has the second highest prevalence of HCV infection and more than half (52%) of Pakistani living in Spain reside in Barcelona. The aim of this study was to analyse the seroprevalence and viraemic rate and determine the genotypes and subtypes of HCV among Pakistanis living in the southern metropolitan area of Barcelona.

Methods

We included all Pakistani patients seeking primary healthcare in the southern metropolitan area of Barcelona from August 2011 to July 2014. Serum samples were screened for HCV antibodies. HCV viral load was determined by reverse transcription polymerase chain reaction and genotypes and subtypes were performed using Versant HCV Genotype and/or deep-sequencing. Screening for hepatitis B virus (HBV) was also carried out.

Results

Among 5877 Pakistani patients, 565 (9.61%) were screened for anti-HCV antibodies, with 68 (12.04%) being positive. The viral load was determined in 65, with 31 presenting active infection and the viraemic rate was 47.69% (95% confidence interval 36.02-59.62). HCV genotyping and subtyping were performed in 24 individuals. Most infections corresponded to HCV genotype 3 (91.67%), and high resolution HCV subtyping was performed in 18 samples, 16 of which presented subtype 3a. One subject presented HBV coinfection with undetectable HBV DNA. During the study period, we identified a possible case of HCV vertical transmission followed by spontaneous viraemia clearance in a chronically infected mother with a C/T IL28B genetic polymorphism.

Conclusion

These results suggest that general HCV screening protocols in patients from high prevalence countries, such as Pakistan, would be helpful to identify and treat active HCV infections. This could avoid further transmission and contribute to building targeted health policies for micro-elimination of HCV infection in specific communities.

Elimination of hepatitis C. Positioning document of the Spanish Association for the Study of the Liver (AEEH)

The Spanish Association for the Study of the Liver (AEEH) is convinced that the elimination of hepatitis C virus (HCV) in Spain is possible as long as we are able to use the resources and tools necessary for it. This document reflects the position of the AEEH regarding the elimination of HCV, establishing a wide range of recommendations that can be grouped into five categories: 1) Screening of HCV according to age, of the existence of classic acquisition risk factors of infection, active search of previously diagnosed patients and development of microelimination strategies in vulnerable populations; 2) Simplification of HCV diagnosis (one-step diagnosis and diagnosis at the point of patient care); 3) Simplification of patient treatment and improvement of care circuits; 4) Health policy measures, and, finally, 5) Establishment of HCV elimination indicators.

Elimination of hepatitis C. Positioning document of the Spanish Association for the Study of the Liver (AEEH)

The Spanish Association for the Study of the Liver (AEEH) is convinced that the elimination of hepatitisC virus (HCV) in Spain is possible as long as we are able to use the resources and tools necessary for it. This document reflects the position of the AEEH regarding the elimination of HCV, establishing a wide range of recommendations that can be grouped into five categories: 1)Screening of HCV according to age, of the existence of classic acquisition risk factors of infection, active search of previously diagnosed patients and development of micro-elimination strategies in vulnerable populations; 2)Simplification of HCV diagnosis (one-step diagnosis and diagnosis at the point of patient care); 3)Simplification of patient treatment and improvement of care circuits; 4)Health policy measures, and, finally, 5)Establishment of HCV elimination indicators.