The eliminate hepatitis C (EC) experience study: baseline characteristics of a cohort of people who inject drugs in Melbourne, Australia.

OBJECTIVES: Direct-acting antivirals provide an opportunity to eliminate hepatitis C virus (HCV) as a public health threat in Australia, yet barriers to care remain. In this study, we use baseline data from a longitudinal cohort of people who inject drugs to understand differences in participant characteristics and explore experiences of stigma, health service utilisation and health literacy between three care cascade groups. DESIGN: Cross-sectional. SETTING: Community and private primary healthcare services in Melbourne, Australia. PARTICIPANTS: Participants completed baseline surveys between 19 September 2018 and 15 December 2020. We recruited 288 participants; the median age was 42 years (IQR: 37-49 years) and 198 (69%) were male. At baseline, 103 (36%) self-reported being 'not engaged in testing', 127 (44%) had HCV RNA positivity but were 'not engaged in treatment' and 58 (20%) were 'engaged in HCV treatment'. OUTCOME MEASURES: Descriptive statistics were used to present the baseline demographics, health service utilisation and experiences of stigma data. We explored differences in these scales between participant demographics using χ2 test or fisher's exact tests, and differences between health literacy scores using one-way analysis of variance tests. RESULTS: A majority were in regular contact with multiple health services, and most had previously been identified as at-risk of HCV. In the 12 months preceding baseline, 70% reported any experiences of stigma related to injecting drug use. Assessment of health literacy data identified gaps for those 'not engaged in testing' and 'not engaged in treatment' across two relevant domains: 'ability to appraise health information' and 'ability to actively engage with healthcare providers'. CONCLUSION: In eliminate hepatitis C experience, lower HCV testing and treatment may be explained by experiences of stigmatisation or gaps in health literacy. Enhanced interventions targeting people who inject drugs to promote HCV care are needed.

The impact of point-of-care hepatitis C testing in needle and syringe exchange programs on linkage to care and treatment uptake among people who inject drugs: An Australian pilot study.

Point-of-care (POC) diagnostics overcome barriers to conventional hepatitis C (HCV) testing in people who inject drugs. This study assessed impact on hepatitis C treatment uptake of POC HCV testing in needle and syringe exchange programs (NSPs). Rapid EC was a single-arm interventional pilot study of HCV POC testing conducted in three inner-city community clinics with NSPs. Twelve months after the POC testing, a retrospective medical record and Pharmaceutical Benefits Scheme audit was performed to determine the number of HCV RNA-positive participants who were prescribed HCV treatment. 70 HCV RNA-positive Rapid EC study participants were included. 44 (63%) were prescribed DAAs; 26 (59%) completed treatment and 15 (34%) had SVR testing, all of whom were cured. Age ≥ 40 years (aOR 3.45, 95% CI 1.10-11.05, p = .03) and secondary school education (aOR 5.8, 95% CI 1.54-21.80, p = .009) had higher likelihood of being prescribed DAAs, whereas homelessness was inversely associated with prescription of DAAs (aOR 0.30, 95% CI 0.09-1.04, p = .057). Median time to receive a DAA script from date of diagnosis was seven days (IQR 0 to 14 days), and time to filling the DAA prescription was 2 days (IQR 0-12 days). In conclusion, provision of POC testing through NSPs was effective for linking new clients to HCV treatment and reduced the time to treatment. Further studies are needed to define the most cost-effective use of POC testing in models of care for people who inject drugs to increase HCV treatment uptake.

Exploring hepatitis C virus testing and treatment engagement over time in Melbourne, Australia: a study protocol for a longitudinal cohort study (EC-Experience Cohort study).

INTRODUCTION: The advent of direct acting antiviral therapy for hepatitis C virus (HCV) means the elimination of HCV is possible but requires sustained effort to achieve. Between 2016 and 2019, 44% of those living with HCV were treated in Australia. However, treatment uptake has declined significantly. In Australia, people who inject drugs (PWID) are the population most at risk of HCV acquisition. Eliminating HCV in Australia will require nuanced understanding of the barriers to HCV treatment experienced by PWID and tailored interventions to address these barriers. The EC-Experience Cohort study aims to explore the barriers and enablers reported by PWID to engagement in HCV care. METHODS AND ANALYSIS: The EC-Experience Cohort study is a prospective cohort of PWID, established in Melbourne, Australia in 2018. Participants are assigned into three study groups: (1) those not currently engaged in HCV testing; (2) those diagnosed with HCV but not currently engaged in treatment and (3) those completed treatment. Participants complete a total of four interviews every 6 months across an 18-month study period. Predictors of experience of key outcome events along the HCV care cascade will be explored over time. ETHICS AND DISSEMINATION: Ethical approval for the EC-Experience Cohort study was obtained by the Alfred Hospital Ethics Committee in Melbourne, Australia (Project Number: HREC/16/Alfred/164). All eligible participants are assessed for capacity to consent and partake in a thorough informed consent process. Results from the EC-Experience Cohort study will be disseminated via national and international scientific and public health conferences and peer-reviewed journal publications. Data from the EC-Experience Cohort study will improve the current understanding of the barriers to HCV care for PWID and guide the tailoring of service provision for specific subgroups. Understanding the barriers and how to increase engagement in care of PWID is critical to achieve HCV elimination goals.

A modelling analysis of financial incentives for hepatitis C testing and treatment uptake delivered through a community-based testing campaign.

Financial incentives may reduce opportunity costs associated with people who become lost to follow-up in hepatitis C treatment programs. We estimated the impact that different financial incentive amounts would need to have on retention in care to maintain the same unit cost per (1) RNA-positive person completing testing (defined as awareness of RNA status) and (2) RNA diagnosed person initiating treatment. Costing data were obtained from a 2019 community-based testing campaign focused on engaging people who inject drugs. For different financial incentive amounts, we modelled the corresponding improvements in retention in care that would be needed to maintain the same overall (1) unit cost per testing completion and (2) unit cost per treatment initiation. In the testing campaign, the unit cost per RNA-positive person completing testing was A$3215 and the unit cost per RNA diagnosed person initiating treatment was A$1055. Modelling found that an incentive of A$500 per RNA-positive person completing testing would result in more people completing testing for the same unit cost if the percentage of attendees receiving their test results increased from 63% to 74%. An incentive of A$200 per RNA diagnosed person initiating treatment would result in more people initiating treatment for the same unit cost if the percentage initiating treatment increased from 67% to 83%. Monetary incentives for completing testing and initiating treatment may be an effective way to increase retention in care without increasing the overall unit cost of completing testing/initiating treatment.

Barriers to hepatitis C treatment among secondary needle and syringe program clients and opportunities to intervene.

BACKGROUND: At least 160,000 Australians are living with hepatitis C (HCV), many of whom are people who inject drugs and access needle and syringe programs (NSP). Secondary NSPs provide injecting equipment via health services that are not dedicated to the provision of services to people who inject drugs; these sites could be a suitable space to increase engagement of people who inject drugs in HCV treatment. Drawing on data from a pilot study exploring the potential of upscaling linkage to HCV care in secondary NSPs, the aim of this research was to explore barriers and enablers to HCV treatment for clients who use these services. METHODS: We interviewed 34 people who inject drugs (who self-reported HCV positivity) from six secondary NSPs in urban and regional Victoria, Australia in 2018. Fifty per cent were male, with ages ranging from 33 to 58. Twenty-two (65%) had never received HCV treatment and none had experience with direct-acting antiviral (DAA) treatment. Interviews were transcribed and analysed thematically. Field notes from a program evaluation with feedback from secondary NSP staff was also used as a secondary data source. RESULTS: Five themes encompassing a set of contrasting barriers and enablers to accessing HCV care through secondary NSPs were uncovered. Themes included 'misinformation' vs. 'multiple trusted information sources; 'lack of symptoms and motivation' vs. 'benefits of cure'; 'competing priorities' vs. 'willingness and readiness to be cured'; 'unsupportive relationships with staff' vs. 'supportive relationships with staff'; and 'inaccessibility and stigma in health services' vs. 'enhanced support'. Secondary program evaluation data also highlighted that secondary NSP staff were under-resourced and had limited capacity to implement HCV care linkage and information. CONCLUSION: We identified contrasting barriers and opportunities for accessing DAAs among a sample of secondary NSP clients and staff. Interventions that consider individual, provider and health system level factors are needed if secondary NSP services are to become a suitable setting to initiate conversations with clients around HCV treatment and provide linkages to care.

Point-of-care hepatitis C testing from needle and syringe programs: An Australian feasibility study.

BACKGROUND: Achieving hepatitis C elimination requires novel approaches to engage people at highest risk of infection into care pathways. Point-of-care-tests may help to overcome some of the barriers preventing people who inject drugs (PWID) accessing testing and progressing to treatment for hepatitis C virus (HCV). We assessed the feasibility and acceptability of HCV point-of-care testing at needle and syringe exchange programs (NSPs) co-located in three community health clinics in Melbourne, Australia. METHODS: NSP clients were offered an oral fluid point-of-care test for HCV antibody by NSP staff. Positive HCV antibody tests were followed by a point-of-care test for HCV RNA alongside standard-of-care laboratory testing for hepatitis C treatment work-up. Participants were offered same-day point-of-care results on site, via phone or text message, or upon return to the service. Participants were scheduled for follow-up review with the study nurse for assessment and linkage to treatment. RESULTS: A total of 174 participants completed HCV antibody point-of-care test; 150 (86%) had a reactive result. Of these, 140 (93%) underwent a HCV RNA point-of-care test and 76 (54%) tested positive; few participants (5%) waited on site for results delivery, but the majority of RNA positive (63%) attended a follow-up visit for treatment work-up (median time to follow-up visit = 11 days; IQR = 7-20 days). The majority of participants reported a preference for point-of-care tests (66%) and supported NSP staff involvement in testing (90%). CONCLUSION: Provision of HCV point-of-care tests, follow-up and linkage to treatment services through NSPs was feasible and acceptable to PWID. Despite few participants waiting to receive same-day results, there was effective linkage to care, suggesting value in further evaluation of this approach.