Integrated models of care for people who inject drugs and live with hepatitis C virus: A systematic review

Engagement in hepatitis C virus cascade of care and factors associated with testing among people who inject drugs in Iran

BACKGROUND

Understanding the hepatitis C virus (HCV) cascade of care (CoC) and factors associated with engagement is crucial for designing interventions for achieving HCV elimination. However, data on engagement in the HCV CoC among people who inject drugs (PWID) in the Middle East and North Africa remains limited. We examined the HCV CoC and factors associated with testing among Iranian PWID.

METHODS

We recruited PWID in 14 cities using respondent-driven sampling. PWID completed structured interviews capturing measures on socio-demographics, behaviors, and HCV CoC. We examined the self-reported numbers and proportions of individuals who ever tested for HCV, tested positive for HCV antibody, were diagnosed with HCV, initiated HCV treatment, and achieved sustained virologic response (SVR). Multivariable logistic regression models were built to assess factors associated with HCV antibody testing.

RESULTS

Of 2308 PWID, 23.1% had ever received an HCV antibody test, 13.9% received the HCV antibody test in the last year, 3.4% had tested positive for HCV antibodies, and 2.5% had received an HCV diagnosis. Of those diagnosed, 54.4% reported initiating treatment, and 31.6% had achieved SVR. HCV antibody testing was significantly associated with having knowledge about HCV transmission through sharing needle/syringe (adjusted odds ratio [aOR] 8.09; 95% confidence intervals [CI] 5.25, 12.48), living with HIV (aOR 4.15; 1.58, 10.92), no previous history of homelessness (aOR 1.89; 1.31, 2.72), history of arrest/incarceration (aOR 1.83; 1.26, 2.64), history of being diagnosed with any mental health problems (aOR 2.88; 1.79, 4.61), history of non-fatal overdose (aOR 1.51; 1.08, 2.10), receiving needle exchange programs in the last 12 months (aOR 6.20; 3.86, 9.93), opioid agonist treatment in the last six months (aOR 2.10; 1.39, 3.18), and having ever received HBV vaccine (aOR 2.31; 1.59, 3.35).

CONCLUSIONS

We found a considerably low engagement in HCV CoC among PWID in Iran. Enhancing access to testing services for PWID, especially those with limited awareness of HCV transmission and those encountering structural challenges, is essential as the initial step in the HCV CoC. This improvement is vital for strengthening HCV elimination efforts in Iran.

Trends in cause-specific mortality among people with hepatitis C virus in New South Wales, Australia

BACKGROUND

Monitoring of HCV-related morbidity and mortality is crucial to evaluate direct-acting antiviral (DAA) therapy impact and HCV elimination progress. This population-based study examined mortality among individuals with an HCV notification in New South Wales (NSW), Australia, including cause-specific mortality prior to and during the viral hepatitis elimination era (2015-2021).

METHODS

HCV notifications in NSW, Australia (1995-2021) were linked to hospitalisation records and cause-specific mortality records. Over the period 2002-2021, all-cause and cause-specific mortality rates were examined. Cox proportional hazard models were used to assess factors associated with mortality during the viral hepatitis elimination era.

RESULTS

Among people with HCV notifications in 1995-2021, 112,046 were alive during 2002-2021 and contributed to mortality analyses. All-cause mortality per 100,000 population increased from 5.5 in 2002 to 13.4 in 2015 and plateaued at 12.9 in 2021. Liver-related mortality per 100,000 population increased from 2.0 in 2002 to 5.9 in 2015, before declining to 4.6 in 2021. Drug-related mortality per 100,000 population increased from 0.7 in 2002 to 1.8 in 2015, before declining to 1.2 in 2021. Factors associated with increased mortality risk during 2015-2021 included: recent injecting drug use (adjusted Hazard Ratio [aHR] 7.22, 95 % CI 6.84-7.62) and recent alcohol use disorder (aHR 3.17, 95 % CI 2.97-3.37). Recent opioid agonist therapy (aHR 0.47, 95 % CI 0.43-0.51) and recent incarceration (aHR 0.32, 95 % CI 0.23-0.45) were associated with lower mortality risk.

CONCLUSION

During the HCV elimination era, both liver-related and drug-related mortality have declined, suggesting direct and indirect impacts of DAA therapy, respectively. Expanded opioid agonist therapy coverage and enhanced alcohol use disorder management could further reduce mortality.

Facilitating access to direct-acting antivirals in a community-based point-of-diagnosis model for hepatitis C treatment: The role of the pharmacy team in the no one waits (NOW) study

BACKGROUND

Despite simplified hepatitis C virus (HCV) treatment algorithms, insurance-related barriers prevent same-day HCV treatment upon diagnosis in the US. We assessed how direct partnerships with a pharmacy team facilitated HCV treatment initiation among socially marginalized populations in a community setting.

METHODS

The No One Waits (NOW) Study, a single-arm trial conducted between July 1, 2020, and October 31, 2021, in San Francisco, CA, targeted individuals experiencing homelessness, injecting drugs, and eligible for simplified HCV treatment. Upon positive HCV RNA results, participants were enrolled in same-day treatment and given a 2-week sofosbuvir/velpatasvir (SOF/VEL) starter pack. Additional insurance-provided SOF/VEL was requested for 12 weeks of treatment. If insurance-provided medication was unavailable, SOF/VEL was provided using the study supply. We describe the sustained partnership with a specialty pharmacy team that was necessary for the NOW model's success.

RESULTS

Eighty-seven participants started treatment at diagnosis. Most were unsheltered (61 %), actively injecting drugs (80 %), and had incomes below the federal poverty line (97 %). 90 % transitioned to insurance-covered treatment before completion, with pharmacy members assisting participants in navigating insurance authorization, medication transport, and financial assistance.

CONCLUSION

A sustained partnership with a specialty pharmacy team was critical in transitioning participants to insurance-covered treatment quickly and overcoming barriers, while the study-provided 2-week starter pack facilitated same-day treatment at the point of diagnosis.

Differences in hepatitis C virus (HCV) testing and treatment by opioid, stimulant, and polysubstance use among people who use drugs in rural U.S. communities

BACKGROUND

People who use drugs (PWUD) in rural communities increasingly use stimulants, such as methamphetamine and cocaine, with opioids. We examined differences in hepatitis C virus (HCV) testing and treatment history among rural PWUD with opioids, stimulants, and other substance use combinations.

METHODS

PWUD were enrolled from ten rural U.S. communities from 2018 to 2020. Participants self-reporting a positive HCV result were asked about their HCV treatment history and drug use history. Drug use was categorized as opioids alone, stimulants alone, both, or other drug(s) within the past 30 days. Prevalence ratios (PR) were yielded using adjusted multivariable log-binomial regression with generalized linear mixed models.

RESULTS

Of the 2,705 PWUD, most reported both opioid and stimulant use (74%); while stimulant-only (12%), opioid-only (11%), and other drug use (2%) were less common. Most (76%) reported receiving HCV testing. Compared to other drug use, those who reported opioid use alone had a lower prevalence of HCV testing (aPR = 0.80; 95% CI: 0.63, 1.02). Among participants (n = 944) who self-reported an HCV diagnosis in their lifetime, 111 (12%) ever took anti-HCV medication; those who used both opioids and stimulants were less likely to have taken anti-HCV medication compared with other drug(s) (aPR = 0.41; 95% CI: 0.19, 0.91).

CONCLUSIONS

In this pre-COVID study of U.S. rural PWUD, those who reported opioid use alone had a lower prevalence of reported HCV testing. Those diagnosed with HCV and reported both opioid and stimulant use were less likely to report ever taking anti-HCV medication.

Disengagement from Care Among People Co-Infected with HIV and HCV: A Scoping Review

Disengagement from care among people with HIV (PWH) and hepatitis C (HCV) increases the risks of adverse health outcomes and poses significant barriers to achieving global HIV and HCV elimination goals. In accordance with the Joanna Briggs Institute framework, a scoping review was conducted to synthesize and highlight existing gaps in the literature on (dis)engagement in care among PWH and HCV. We searched for original studies on (dis)engagement in care among PWH and HCV in high-income countries using eight electronic databases from inception to May 2023. Our search yielded 4462 non-duplicated records, which were scoped to 27 studies. Definitions of (dis)engagement in care were diverse, with considerable heterogeneity in how retention was operationalized and temporally measured. Studies identified predictors of (dis)engagement to be related to drug and substance use (n = 5 articles), clinical factors (n = 5), social and welfare (n = 4), and demographic characteristics (n = 2). When engagement in care was treated as an exposure, it was associated with HCV treatment initiation (n = 3), achieving sustained virological response (n = 2), and maintaining HIV viral suppression (n = 1). Interventions to improve care engagement among PWH and HCV were limited to five studies using cash incentives (n = 1) and individual case management (n = 4). (Dis)engagement in care is a dynamic process influenced by shifting priorities that may 'tip the balance' towards or away from regularly interacting with healthcare professionals. However, inconsistent definitions render cross-study comparisons and meta-analyses virtually impossible. Further research needs to establish a standardized definition to identify patients at high risk of disengagement and develop interventions that leverage the nested HIV/HCV care cascades to retain and recover patients lost from care.

Expanding single-venue services to better engage young people who inject drugs: insights from India

BACKGROUND

Over the last decade, India has had an alarming rise in injection of opioids across several cities. Although scale-up of public sector services for people who inject drugs (PWID) in India has occurred over decades, accessibility has been diminished by fragmented services across physical locations. To circumvent this barrier, and in alignment with the World Health Organization's guidelines to provide comprehensive care to key populations, Integrated Care Centers (ICCs) were established across 8 Indian cities as a public-private service delivery model for providing free single-venue services to PWID. ICCs have been very successful in expanding service availability and convenience for PWID generally. However, few studies from low- and middle-income countries (LMIC) have evaluated how well young PWID (defined as those ≤ 29 years of age) engage with single-venue service models like ICCs or specific services provided in such models. Young PWID are an important subpopulation in India, as they bear a disproportionate burden of new HIV infections because of greater risk and evidence of lower receipt of HIV testing and harm reduction services compared to older PWID. In this comment, we offer insights specific to young PWID drawn from multiple quantitative and qualitative studies examining the reach and effectiveness of ICCs, which may provide generalizable insights into limitations of services for young PWID more broadly in India and globally.

FINDINGS

Our studies suggest that while ICCs have expanded service availability, particularly in cities with emerging injection drug use epidemics, population-level reach to foster initial engagement among young PWID can be optimized. Additionally, young PWID who do engage with ICCs experience gaps in substance use treatment receipt and retention, and experience barriers to receipt of ICC services that are distinct from those experienced by older PWID. Notably, HIV incidence among ICC clients is concentrated in young PWID. Finally, ICCs were not intended to reach adolescent PWID, and new services are needed for this subpopulation.

CONCLUSIONS

In addition to co-locating services, iterative optimization of models such as ICCs should incorporate youth-specific differentiated interventions and be accompanied by policy changes that are critical to improving the reach and effectiveness of harm reduction and HIV services among young PWID in India.

A narrative systematic review of associations and temporality between use of methamphetamine, ecstasy/MDMA, or cocaine with anxiety or depressive symptoms

OBJECTIVE

Anxiety and depression are prevalent mental health problems in people who use illicit stimulants. Improved understanding of the temporal relationship between methamphetamine, ecstasy/MDMA, or cocaine use with anxiety or depression informs public health interventions and treatment options for those experiencing this co-occurrence. This narrative systematic review sought to examine associations and temporality between the use of methamphetamine, ecstasy/MDMA, or cocaine, with anxiety or depressive symptoms. Method Systematic searches of 4 electronic databases were conducted up to August 2023. Study eligibility included the measurement of anxiety and/or depressive symptoms, and frequency of illicit stimulant use (methamphetamine, cocaine, or ecstasy/MDMA) at two separate time points, with data analysis of the association between these variables. The Joanna Briggs Critical Appraisal Checklist was utilised to assess quality. Data was extracted, and a narrative synthesis incorporating an eight-criteria framework to assess associations was conducted. Results 4432 studies were screened for eligibility; 11 studies (3 RCTs and 8 prospective cohort studies) were included. Evidence for an association between depressive symptoms and methamphetamine use was demonstrated in six studies, with temporal evidence in three studies supporting methamphetamine use preceding depressive symptoms. Three studies reported an association between cocaine use and depressive symptoms. Evidence for associations with any of the illicit stimulants and anxiety symptoms was lacking.

CONCLUSIONS

There was some evidence to support a case for temporality, particularly for methamphetamine use and depressive symptoms. Investing in longitudinal studies is pivotal to understanding the dynamic and reciprocal relationship between illicit stimulant use and anxiety or depressive symptoms. A limitation of the study was the variation in the measurement and analysis of outcomes.

Integration of Hepatitis C and Addiction Treatment in People Who Inject Drugs: The San Patrignano HCV-Free and Drug-Free Experience

Injection drug use represents an important contributor to hepatitis C virus (HCV) transmission, hence therapeutic communities (TCs) are promising points of care for the identification and treatment of HCV-infected persons who inject drugs (PWIDs). We evaluated the effectiveness and efficacy of an HCV micro-elimination program targeting PWIDs in the context of a drug-free TC; we applied the cascade of care (CoC) evaluation by calculating frequencies of infection diagnosis, confirmation, treatment and achievement of a sustained virological response (SVR). We also evaluated the risk of reinfection of PWIDs achieving HCV eradication by collecting follow-up virologic information of previously recovered individuals and eventual relapse in drug use, assuming the latter as a potential source of reinfection. We considered 811 PWIDs (aged 18+ years) residing in San Patrignano TC at the beginning of the observation period (January 2018-March 2022) or admitted thereafter, assessing for HCV and HIV serology and viral load by standard laboratory procedures. Ongoing infections were treated with direct-acting antivirals (DAA), according to the current national guidelines. Out of the 792 individuals tested on admission, 503 (63.5%) were found to be seropositive for antibodies against HCV. A total of 481 of these 503 individuals (95.6%) underwent HCV RNA testing. Out of the 331 participants positive for HCV RNA, 225 were ultimately prescribed a DAA treatment with a sustained viral response (SVR), which was achieved by 222 PWIDs (98.7%). Of the 222 PWIDs, 186 (83.8%) with SVR remained HCV-free on follow-up (with a median follow-up of 2.73 years after SVR ascertainment). The CoC model in our TC proved efficient in implementing HCV micro-elimination, as well as in preventing reinfection and promoting retention in the care of individuals, which aligns with the therapeutic goals of addiction treatment.

Hepatitis C virus micro-elimination in people who inject drugs: Challenges and chance in Taiwan and worldwide

With the introduction of direct-acting antivirals, elimination of hepatitis C virus (HCV) infection is becoming possible. People who inject drugs (PWID) represent a population with a high risk for HCV infection, which has been reported as high as 90% in Taiwanese PWID. To reach the goal of HCV elimination, PWID is a key population deserving special attention. Barriers in HCV care cascade still exist in PWID, and interventions to promote access to HCV diagnosis, link-to-care, treatment, and prevention for PWID are warranted. Although HCV micro-elimination can be achieved in some prisons and opioid substitution therapy (OST) centers by a multidisciplinary team and integrated care in Taiwan, there are still several unmet needs for HCV elimination in PWID. Continuous efforts, such as the participation of OST specialists and the continuum of care for HCV among PWID, are needed to achieve HCV elimination in Taiwan. In addition, the combination of harm reduction services, treatment as prevention and regular posttreatment HCV surveillance is critical to substantially reduce HCV transmission and prevalence in PWID.

Effectiveness of care models for chronic disease management: A scoping review of systematic reviews

OBJECTIVE

To conduct a scoping review of models of care for chronic disease management to identify potentially effective components for management of chronic traumatic brain injury (TBI).

METHODS

Information sources: Systematic searches of three databases (Ovid MEDLINE, Embase, and Cochrane Database of Systematic Reviews) from January 2010 to May 2021.

ELIGIBILITY CRITERIA

Systematic reviews and meta-analyses reporting on the effectiveness of the Chronic Care Model (CCM), collaborative/integrated care, and other chronic disease management models.

DATA

Target diseases, model components used (n = 11), and six outcomes (disease-specific, generic health-related quality of life and functioning, adherence, health knowledge, patient satisfaction, and cost/health care use).

SYNTHESIS

Narrative synthesis, including proportion of reviews documenting outcome benefits.

RESULTS

More than half (55%) of the 186 eligible reviews focused on collaborative/integrated care models, with 25% focusing on CCM and 20% focusing on other chronic disease management models. The most common health conditions were diabetes (n = 22), depression (n = 16), heart disease (n = 12), aging (n = 11), and kidney disease (n = 8). Other single medical conditions were the focus of 22 reviews, multiple medical conditions of 59 reviews, and other or mixed mental health/behavioral conditions of 20 reviews. Some type of quality rating for individual studies was conducted in 126 (68%) of the reviews. Of reviews that assessed particular outcomes, 80% reported disease-specific benefits, and 57% to 72% reported benefits for the other five types of outcomes. Outcomes did not differ by the model category, number or type of components, or target disease.

CONCLUSIONS

Although there is a paucity of evidence for TBI per se, care model components proven effective for other chronic diseases may be adaptable for chronic TBI care.

Hepatitis C Treatment Among Primary Care and Specialty Providers: A Single Center Study, 2015 to 2022

INTRODUCTION

Despite national goals to eliminate Hepatitis C (HCV) and the advancement of curative, well-tolerated direct-acting antiviral (DAAs) regimens, rates of HCV treatment have declined nationally since 2015. Current HCV guidelines encourage treatment of HCV by primary care providers (PCPs). Payors have reduced restrictions to access DAAs nationally and in California however it remains unclear if the removal of these restrictions has impacted the proportion of PCPs prescribing DAAs at a health system level. Our objective was to examine the proportion of DAAs prescribed by PCPs and specialists and to describe the population receiving treatment in a single health system from 2015 to 2022.

METHODS

We examined the proportion of DAAs prescribed by PCPs and specialists and the population receiving treatment through a retrospective analysis of claims data in the University of California, Los Angeles (UCLA) Health System from 2015 to 2022. We described number of prescriptions for HCV medication prescribed by PCPs and specialists by year, medication type, and physician specialty. We also described numbers of prescriptions by patient demographics and comorbidities.

RESULTS

A total of 1515 adult patients received a prescription for HCV medication through the UCLA Health System between 2015 and 2022. The proportion of patients receiving prescriptions for PCPs peaked at 19% in 2016, yet decreased to 5.7% in 2022, an average of 13% across all years. Median age of patients receiving treatment was 60 years old, and 56% of patients receiving HCV treatment had commercial insurance as their primary payer.

CONCLUSIONS

HCV treatment declined from 2015 to 2022 among specialists and PCPs in our health system. Older patients comprised the majority of patients receiving treatment, suggesting a need for novel approaches to reach patients under 40, an age group with significant increases in HCV transmission.

The multiple makings of a supervised consumption service in a hospital setting

BACKGROUND

Whereas supervised consumption services (SCSs) are common in many community settings, they are seldomly found in acute care hospitals. As hospitals present unique circumstances that can shape the impacts of an SCS, careful consideration of local implementation contexts and practices is required. We explored the pre-implementation stage of an SCS, to examine how an SCS is made and made differently in relation to the material-discursive context of the hospital.

METHODS

We conducted 11 focus groups with 83 staff and clinicians at an inner-city hospital in Toronto, Canada. Data analysis followed principles of grounded theory and was informed by an 'evidence making interventions' framework.

RESULTS

While most participants indicated they would support the establishment of an SCS at the hospital, multiple enactments of an SCS emerged. An SCS was enacted: as a means to reduce drug-related risks for all people who use drugs, as an opportunity to intervene on patients' drug use, as a means to centralize drug use, and as a transformative intervention for the hospital. In our findings, harm reduction, abstinence, security, and risk mitigation goals existed closely together, yielding overlaying realities.

CONCLUSION

Our findings revealed various enactments of an SCS, some of which are likely to negatively affect people who use drugs and service access. As more hospitals consider the implementation of an SCS, understanding how an SCS is made in practice will be key to building a service that focuses on the needs of people who use drugs.

Evaluating the prevalence of current hepatitis C infection and treatment among Aboriginal and Torres Strait Islander peoples who inject drugs in Australia: The ETHOS engage study

INTRODUCTION

Evaluating progress towards hepatitis C virus (HCV) elimination among Aboriginal and Torres Strait Islander peoples is critical given the disproportionate burden of infection. We examined factors associated with current HCV infection and self-reported treatment among Aboriginal and Torres Strait Islander (hereafter referred to as Aboriginal peoples) and non-Aboriginal peoples who inject drugs (PWID) in Australia.

METHODS

ETHOS Engage is an observational cohort study of PWID attending drug treatment and needle and syringe programs in Australia. Participants underwent point-of-care HCV RNA testing (Xpert HCV RNA Viral Load Fingerstick) and completed a questionnaire including self-reported history of HCV treatment.

RESULTS

Between May 2018 and June 2021, 2395 participants were enrolled and 555 (23%) identified as Aboriginal (median age 42 years, 58% were men, 63% injected drugs in last month, 76% ever incarcerated). HCV RNA prevalence was 23% among Aboriginal PWID (24% in 2018-2019 and 21% in 2019-2021; p = 0.44), and 21% among non-Aboriginal PWID (24% in 2018-2019 and 16% in 2019-2021; p < 0.001). Self-reported HCV treatment was 65% among Aboriginal PWID (63% in 2018-2019 and 69% in 2019-2021; p = 0.30), and 70% among non-Aboriginal PWID (67% in 2018-2019 and 75% in 2019-2021; p < 0.001). Among Aboriginal PWID, current HCV infection was associated with recently injecting drugs and receiving opioid agonist treatment, and self-reported HCV treatment was negatively associated with younger age, homelessness and recently injecting drugs.

DISCUSSION AND CONCLUSIONS

Equitable access to HCV care and prevention is needed to ensure Australia meets its elimination targets among Aboriginal PWID.

Community-Based Point-of-Diagnosis Hepatitis C Treatment for Marginalized Populations: A Nonrandomized Controlled Trial

Importance

Disparities persist in testing and treatment for hepatitis C virus (HCV), leaving socially marginalized populations less likely to benefit from curative treatment. Linkage services are often insufficient to overcome barriers to navigating the medical system and contextual factors.

Objective

To determine the feasibility, acceptability, and safety of HCV treatment at the point of HCV infection diagnosis disclosure in a nonclinical community setting.

Design, Setting, and Participants

In this single-arm nonrandomized controlled trial conducted between July 1, 2020, and October 31, 2021, street-outreach recruitment targeted people experiencing homelessness and injecting drugs in an urban US community who were eligible for simplified HCV treatment.

Interventions

Study procedures were designed to reflect the community environment and services needed to provide HCV testing, disclosure, and treatment in a nonclinical site. The test-and-treat No One Waits (NOW) model of care provided a 2-week starter pack of 400 mg of sofosbuvir and 100 mg of velpatasvir at time of HCV RNA results disclosure. Participants were transitioned to insurance-provided sofosbuvir-velpatasvir when feasible to complete a 12-week treatment course.

Main Outcomes and Measures

The primary end point was sustained virologic response at posttreatment week 12 or later (SVR12). Acceptability end points were treatment initiation and completion. Safety end points were treatment discontinuation because of a late exclusion criterion and adverse events.

Results

Of the 492 people (median [IQR] age, 48 [37-58] years; 62 [71%] male) who underwent anti-HCV testing, 246 (50%) tested anti-HCV positive, and 111 (23%) tested HCV RNA positive and were eligible for simplified HCV treatment. Eighty-nine of the 111 eligible participants (80%) returned for confirmatory RNA results, and 87 (98%) accepted and initiated HCV treatment. Seventy (80%) were currently injecting drugs, 83 (97%) had an income below the poverty line, and 53 (61%) were currently unsheltered. Most had HCV genotype 1a (45 [52%]) or 3 (20 [23%]). Sixty-nine (79%) completed 12 weeks of sofosbuvir-velpatasvir treatment, 2 stopped treatment because of low adherence, and 16 were lost to follow-up. Of the 66 participants who completed treatment and had a successful blood draw, 61 (92%) had undetectable HCV RNA at treatment completion. Of the 87 treated patients, 58 achieved SVR12, leading to a treatment response of 67% (95% CI, 56%-76%) among the intention-to-treat group and 84% (95% CI, 73%-92%) among the per-protocol group. There were no adverse events, late exclusions, or deaths.

Conclusions and Relevance

In this nonrandomized controlled trial of HCV treatment at the point of diagnosis, the NOW model of care reduced steps between HCV testing and treatment initiation and resulted in high levels of treatment initiation, completion, and cure. The NOW model of care can expand the current HCV test-and-treat toolkit by reaching a broader population of marginalized communities and expediting curative therapy.

Trial Registration

ClinicalTrials.gov Identifier: NCT03987503.

The 2023 Impact of Inflammatory Bowel Disease in Canada: Access to and Models of Care

Rising compounding prevalence of inflammatory bowel disease (IBD) (Kaplan GG, Windsor JW. The four epidemiological stages in the global evolution of inflammatory bowel disease. Nat Rev Gastroenterol Hepatol. 2021;18:56-66.) and pandemic-exacerbated health system resource limitations have resulted in significant variability in access to high-quality, evidence-based, person-centered specialty care for Canadians living with IBD. Individuals with IBD have identified long wait times, gaps in biopsychosocial care, treatment and travel expenses, and geographic and provider variation in IBD specialty care and knowledge as some of the key barriers to access. Care delivered within integrated models of care (IMC) has shown promise related to impact on disease-related outcomes and quality of life. However, access to these models is limited within the Canadian healthcare systems and much remains to be learned about the most appropriate IMC team composition and roles. Although eHealth technologies have been leveraged to overcome some access challenges since COVID-19, more research is needed to understand how best to integrate eHealth modalities (i.e., video or telephone visits) into routine IBD care. Many individuals with IBD are satisfied with these eHealth modalities. However, not all disease assessment and monitoring can be achieved through virtual modalities. The need for access to person-centered, objective disease monitoring strategies, inclusive of point of care intestinal ultrasound, is more pressing than ever given pandemic-exacerbated restrictions in access to endoscopy and cross-sectional imaging. Supporting learning healthcare systems for IBD and research relating to the strategic use of innovative and integrative implementation strategies for evidence-based IBD care interventions are greatly needed. Data derived from this research will be essential to appropriately allocating scarce resources aimed at improving person-centred access to cost-effective IBD care.

Accessing hepatitis C direct acting antivirals among people living with hepatitis C: a qualitative study

BACKGROUND

Hepatitis C is curable with direct-acting antivirals (DAAs). However, treatment uptake remains low among marginalized populations such as people who inject drugs. We sought to understand challenges to treatment uptake with DAAs among people living with hepatitis C and compare treatment experiences between people who do and do not inject prescription and/or unregulated drugs.

METHODS

We conducted a qualitative study using focus groups with 23 adults aged 18 years and over who completed DAA treatment or were about to begin such treatment at the time of the study. Participants were recruited from hepatitis C treatment clinics across Toronto, Ontario. We drew upon stigma theory to interpret participants' accounts.

RESULTS

Following analysis and interpretation, we generated five theoretically-informed themes characterizing the experiences of individuals accessing DAAs: "being 'worthy' of the cure", "spatially enacted stigma", "countering social and structural vulnerability: the importance of peers", "identity disruption and contagion: attaining a 'social cure'" and "challenging stigma with population-based screening". Overall, our findings suggest that structural stigma generated and reproduced through healthcare encounters limits access to DAAs among people who inject drugs. Peer-based programs and population-based screening were proposed by participants as mechanisms for countering stigma within health care settings and 'normalizing' hepatitis C among the general population.

CONCLUSIONS

Despite the availability of curative therapies, access to such treatment for people who inject drugs is limited by stigma enacted in and structured within healthcare encounters. Developing novel, low-threshold delivery programs that remove power differentials and attend to the social and structural determinants of health and reinfection are needed to facilitate further scale up of DAAs and support the goal of eradicating hepatitis C as a public health threat.

Is use of opioid agonist treatment associated with broader primary healthcare use among men with recent injecting drug use histories following release from prison? A prospective cohort study

BACKGROUND

A precipitous decline in health status among people recently released from prison is common. In Victoria, Australia, opioid agonist treatment (OAT) in the community involves frequent contact with primary care, potentially facilitating broader use of primary healthcare services. Among a cohort of men who injected drugs regularly pre-imprisonment, we estimated differences in rates of primary healthcare use and medication dispensation between people who did and did not receive OAT post-release.

METHODS

Data came from the Prison and Transition Health Cohort Study. Three-month post-release follow-up interviews were linked with primary care and medication dispensation records. Generalised linear models were fit with one exposure (OAT: none/partial/complete) for 13 outcomes relating to primary healthcare use, pathology testing, and medication dispensation, adjusted for other covariates. Coefficients were reported as adjusted incidence rate ratios (AIRR).

RESULTS

Analyses included 255 participants. Compared to no OAT use, both partial and complete OAT use were associated with increased rates of standard (AIRR: 3.02, 95%CI: 1.88-4.86; AIRR: 3.66, 95%CI: 2.57-5.23), extended (AIRR: 2.56, 95%CI: 1.41-4.67; AIRR: 2.55, 95%CI: 1.60-4.07) and mental health-related (AIRR: 2.71, 95%CI: 1.42-5.20; AIRR: 2.27, 95%CI: 1.33-3.87) general practitioner (GP) consultations, total medication (AIRR: 1.88, 95%CI: 1.19-2.98; AIRR: 2.40, 95%CI: 1.71-3.37), benzodiazepine (AIRR: 4.99, 95%CI: 2.81-8.85; AIRR: 8.30, 95%CI: 5.28-13.04) and gabapentinoid (AIRR: 6.78, 95%CI: 3.34-13.77; AIRR: 4.34, 95%CI: 2.37-7.94) dispensations, respectively. Partial OAT use was also associated with increased after-hours GP consultations (AIRR: 4.61, 95%CI: 2.24-9.48) and complete OAT use? with increased pathology utilisation (e.g. haematological, chemical, microbiological or immunological tissue/sample testing; AIRR: 2.30, 95%CI: 1.52-3.48).

CONCLUSION

We observed higher rates of primary healthcare use and medication dispensation among people who reported partial and complete OAT use post-release. Findings suggest that access to OAT post-release may have a collateral benefit in supporting broader health service utilisation, underscoring the importance of retention in OAT after release from prison.

Eliminating hepatitis C in Australia: a novel model of hepatitis C testing and treatment for people who inject drugs at a medically supervised injecting facility

OBJECTIVE

To evaluate the feasibility of testing and treating people who inject drugs at a supervised injecting facility for hepatitis C virus (HCV) infection.

DESIGN

Retrospective cohort study.

SETTING, PARTICIPANTS

People who inject drugs who attended the Melbourne supervised injecting facility, 30 June 2018 - 30 June 2020.

MAIN OUTCOME MEASURES

Proportion of people tested for hepatitis C; proportions of people positive for anti-HCV antibody and HCV RNA, and of eligible people prescribed direct-acting antiviral (DAA) treatment; sustained virological response twelve weeks or more after treatment completion.

RESULTS

Of 4649 people who attended the supervised injecting facility during 2018-20, 321 were tested for hepatitis C (7%); 279 were anti-HCV antibody-positive (87%), of whom 143 (51%) were also HCV RNA-positive. Sixty-four of 321 had previously been treated for hepatitis C (20%), 21 had clinically identified cirrhosis (7%), eight had hepatitis B infections (2%), and four had human immunodeficiency virus infections (1%). In multivariate analyses, people tested for hepatitis C were more likely than untested clients to report psychiatric illness (adjusted odds ratio [aOR], 9.65; 95% confidence interval [CI], 7.26-12.8), not have a fixed address (aOR, 1.59; 95% CI, 1.18-2.14), and to report significant alcohol use (aOR, 1.57; 95% CI, 1.06-2.32). The median number of injecting facility visits was larger for those tested for hepatitis C (101; interquartile range [IQR], 31-236) than for those not tested (20; IQR, 3-90). DAA treatment was prescribed for 126 of 143 HCV RNA-positive clients (88%); 41 of 54 with complete follow-up data were cured (76%).

CONCLUSIONS

People who attend supervised injecting facilities can be tested and treated for hepatitis C on site. Models that provide streamlined, convenient hepatitis C care promote engagement with treatment in a group in which the prevalence of hepatitis C is high.

Need for integration of hepatitis C (HCV) services in community-based settings for people who inject drugs: results from a global values and preferences survey

BACKGROUND

To inform the development of updated World Health Organization (WHO) guidelines on simplified service delivery for HCV infection, a global survey was undertaken among people affected or infected by HCV. The objective of this analysis is to identify specific needs and preferences among people who inject drugs.

METHODS

A multi-country, anonymous, self-administered online survey conducted in 2021 was developed by Coalition PLUS and the World Hepatitis Alliance in partnership with the WHO. Preferences for test and treat locations and simplifying HCV care were collected among people affected or infected by HCV. Chi-square tests were used to compare respondents who identified with current or former injection drug users through identification with key population to other respondents who did not identify with this key population.

RESULTS

Among 202 respondents, 62 (30.7%) identified with current/former injection drug users. Compared to other respondents, they were: older [median (IQR): 48 (36-57) vs. 39 (31-51) years, p = 0.003]; more likely to have been tested for HCV (90.2% vs. 64.3%, p = 0.001); more likely to prefer testing in a community-based centre (CBC) (55.4% vs. 33.3%, p = 0.005); or in a support centres for people who use drugs (SCPUD)(50.0% vs. 9.8%, p < 0.001). The most important considerations regarding testing locations among people identified with current/former injection drug users (compared to the other respondents) were: non-judgemental atmosphere (p < 0.001), anonymity (p = 0.018) and community worker (CW) presence (p < 0.001). People identified with current/former injection drug users were more likely to prefer to receive HCV treatment in a CBC (63.0% vs. 44.8%, p = 0.028) or in a SCPUD (46.3% vs. 9.5%, p < 0.001), compared to the other respondents. The most important considerations regarding treatment locations among people identified with current/former injection drug users were the non-stigmatising/non-judgemental approach at the site (p < 0.001) and the presence of community-friendly medical personnel or CW (p = 0.016 and 0.002), compared to the other respondents.

CONCLUSION

The preferences of people identified with current/former injection drug users indicated specific needs concerning HCV services. Integration of HCV services in community-based risk reduction centres may be an important element in the development of adapted services to increase uptake and retention in HCV care among this population.

Integrated supervised consumption services and hepatitis C testing and treatment among people who inject drugs in Toronto, Canada: A cross-sectional analysis

Despite the availability of publicly funded hepatitis C (HCV) treatment in Canada, treatment gaps persist, particularly among people who inject drugs. We estimate correlates of HCV care cascade engagement (testing, diagnosis, and treatment) among people who inject drugs in Toronto, Canada and examine the effect of accessing differing supervised consumption service (SCS) models on self-reported HCV testing and treatment. This is a cross-sectional baseline analysis of 701 people who inject drugs surveyed in the Toronto, Ontario integrated Supervised Injection Services (OiSIS-Toronto) study between November 2018 and March 2020. We examine correlates of self-reported HCV care cascade outcomes including SCS model, demographic, socio-structural, drug use, and harm reduction characteristics. Overall, 647 participants (92%) reported ever receiving HCV testing, of whom 336 (52%) had been diagnosed with HCV. Among participants who reported ever being diagnosed with HCV, 281 (84%) reported chronic HCV, of whom 130 (46%) reported HCV treatment uptake and 151 (54%) remained untreated. Compared to those with no SCS use, participants who had ever injected at an integrated SCS model with co-located HCV care had greater prevalence of both ever receiving HCV testing (adjusted prevalence ratio [aPR]: 1.12, 95% confidence interval [CI]: 1.02-1.24) and ever receiving HCV treatment (aPR: 1.67, 95% CI: 1.04-2.69). Over half of participants diagnosed with chronic HCV reported remaining untreated. Our findings suggest that integrated SCS models with co-located HCV care represent key strategies for linkage to HCV care, but that more is needed to support scale-up.

The 11th Canadian Symposium on Hepatitis C Virus: 'Getting back on track towards hepatitis C elimination'

Hepatitis C virus (HCV) affects approximately 204,000 Canadians. Safe and effective direct-acting antiviral therapies have contributed to decreased rates of chronic HCV infection and increased treatment uptake in Canada, but major challenges for HCV elimination remain. The 11th Canadian Symposium on Hepatitis C Virus took place in Ottawa, Ontario on May 13, 2022 as a hybrid conference themed 'Getting back on track towards hepatitis C elimination.' It brought together research scientists, clinicians, community health workers, patient advocates, community members, and public health officials to discuss priorities for HCV elimination in the wake of the COVID-19 pandemic, which had devastating effects on HCV care in Canada, particularly on priority populations. Plenary sessions showcased topical research from prominent international and national researchers, complemented by select abstract presentations. This event was hosted by the Canadian Network on Hepatitis C (CanHepC), with support from the Public Health Agency of Canada and the Canadian Institutes of Health Research and in partnership with the Canadian Liver Meeting. CanHepC has an established record in HCV research and in advocacy activities to address improved diagnosis and treatment, and immediate and long-term needs of those affected by HCV infection. The Symposium addressed the remaining challenges and barriers to HCV elimination in priority populations and principles for meaningful engagement of Indigenous communities and individuals with living and lived experience in HCV research. It emphasized the need for disaggregated data and simplified pathways for creating and monitoring interventions for equitably achieving elimination targets.

Hepatitis C virus prevalence, determinants, and cascade of care among people who inject drugs in Iran

BACKGROUND

People who inject drugs (PWID) continue to experience the highest burden of hepatitis C virus (HCV). We aimed to characterize HCV antibody prevalence, determinants of infection, and the cascade of engagement in HCV care among PWID in Iran.

METHODS

Participants were recruited in 11 cities of Iran using respondent-driven sampling. PWID underwent a structured interview capturing measures on socio-demographics, behaviors, and the HCV cascade of care. HCV and HIV were tested using antibody rapid tests. Multivariable logistic regression models identified characteristics associated with HCV seropositivity.

RESULTS

HCV antibody prevalence was 26.0% among 2684 PWID enrolled. Of 699 participants who were HCV antibody positive, 88 (12.6%) were aware of past infections. HCV antibody prevalence was associated with older age (adjusted odds ratio [aOR] 2.09; 95% CI 1.18, 3.71), lower education (aOR 1.31; 95% CI 1.02, 1.69), >10 years of injecting (aOR 6.03; 95% CI 4.10, 8.85), methamphetamine injection (aOR 1.46; 95% CI 1.07, 1.99), daily injection drug use (aOR 1.26; 95% CI 1.01, 1.58), needle/syringe sharing (aOR 2.04; 95% CI 1.24, 3.34), recent incarceration (aOR 1.74; 95% CI 1.30, 2.32), and HIV seropositivity (aOR 7.93; 95% CI 4.12, 15.24). Additionally, 12.0% had ever tested for HCV, 4.0% had previously tested reactive for HCV antibody, and 3.7% had received an HCV diagnosis. Of diagnosed cases, 44.4% were linked to care, 15.2% initiated treatment, and 3.0% achieved sustained virologic response.

CONCLUSION

Our data show a high prevalence of HCV antibody and low engagement in HCV care, underscoring an unmet need for HCV prevention, screening, and treatment among PWID in Iran. HCV prevention and treatment programs tailored for PWID are needed to enhance harm reduction efforts and access to HCV care in Iran.

Effectiveness of direct-acting antiviral therapy among Aboriginal and Torres Strait Islander peoples with HCV infection in Australia: A national real-world cohort (REACH-C)

Aboriginal and Torres Strait Islander peoples experience a disproportionate burden of hepatitis C virus (HCV) infection. This study assessed the effectiveness of direct-acting antiviral (DAA) therapy among Aboriginal peoples in the three years following universal access in Australia. REACH-C, a national multicentre prospective cohort study, evaluated HCV treatment outcomes from sequential DAA initiations across 33 health services between March 2016 and June 2019. DAA effectiveness was assessed by sustained virological response (SVR) in the total (full analysis set) and effectiveness (modified analysis set excluding those lost to follow-up) populations. Overall, 915 (10%) Aboriginal and 8095 (90%) non-Indigenous people commenced DAA therapy, of whom 30% and 16% reported current injecting drug use and 73% and 42% were treated in primary care, respectively. SVR in the total and effectiveness populations was 74% and 94% among Aboriginal people and 82% and 94% among non-Indigenous people, with loss to follow-up contributing to lower SVR in the total population analysis (22% Aboriginal, 13% non-Indigenous). Among Aboriginal people, returning for follow-up was positively associated with older age (aOR 1.20; 95% CI 1.04, 1.39) and SVR was negatively associated with cirrhosis (aOR 0.39; 95% CI 0.19, 0.80) and prior DAA treatment (aOR 0.14; 95% CI 0.04, 0.49). Factors reflecting higher vulnerability or inequity were not associated with returning for testing or SVR. DAA therapy was highly effective among Aboriginal peoples with HCV treated through primary and tertiary services. Tailored community-led interventions are necessary to optimize follow-up and engagement. Sustained DAA uptake and equitable access to care, treatment and prevention are required for HCV elimination.

Pilot Outreach Program in Remedis-The Promising Step toward HCV Elimination among People Who Inject Drugs

The global effort to eliminate HCV infection requires new approaches to accessing and testing the affected population in a setting with as low of a threshold as possible. The focus should be on socially marginalized people who inject drugs (PWIDs) and who are not willing or able to visit standard medical services. With this vision, we established an outreach service-a testing point in an ambulance in the park in front of the Main Railway Station of the capital city of Prague-to provide bloodborne disease testing and treatment. The service was available every week on Wednesday afternoon. Over the initial two years of our experience, 168 unique people were tested. Of them, 82 (49%) were diagnosed with chronic HCV infection and were eligible for treatment with antivirals. Of these, 24 (29%) initiated antiviral treatment over the study period, and 17 (71%) of these individuals achieved a documented sustained virological response. Offering medical services in PWIDs' neighborhoods helps overcome barriers and increase the chances that they will become patients and begin HCV treatment. The described outcomes appear promising for reaching the vision of linkage to the care of such a hard-to-reach population and can serve as a feasible model of care for further expansion.

A qualitative investigation of the barriers and facilitators to Hepatitis C virus (HCV) screening among individuals experiencing homelessness in Houston, Texas

BACKGROUND

Individuals experiencing homelessness may be at a higher risk for hepatitis C infection because many are vulnerable to risk factors related to HCV. Screening is the very first step in the HCV care continuum, but it remains unclear how to improve HCV screening among this hard-to-reach population. Thus, the present study investigated the barriers and facilitators to HCV screening from the perspective of individuals experiencing homelessness within a non-residential social service setting.

METHODS

Individuals experiencing homelessness (aged 18+) were approached while they were seeking services at two community-based organizations in Houston, Texas, during August 2020. Participants (N = 31) completed an interviewer-administered demographic survey and a semi-structured interview about their experiences with healthcare, homelessness, and HCV screening. Following transcript coding and content analysis, a thematic analysis was conducted to identify HCV screening barriers and facilitators discussed by participants.

RESULTS

Participants were predominantly male (n = 25, 80.6%), and almost 40% of participants had no form of medical insurance. Participants identified the following as barriers to HCV screening: mistrust of the healthcare system and professionals and lack of knowledge of HCV prevention, harm reduction, and complications. Participants identified the following as facilitators to HCV screening: providing incentives and increasing access and convenience to HCV screening.

CONCLUSION

Community-based HCV screening programs may wish to account for the lived experiences of individuals experiencing homelessness in order to minimize barriers to screening. Client-centered strategies that reduce wait times and incentivize participation should be considered to eliminate barriers and increase convenience for this high-risk population.

A cross-sectional study of hepatitis C prevalence and correlates among persons who inject drugs in rural and non-rural communities

Persons who inject drugs (PWID) have been experiencing a higher burden of new hepatitis C (HCV) due to the opioid epidemic. The greatest increases in injection have been in rural communities. However, less is known about the prevalence of HCV or its risk factors in rural compared to non-rural communities. This study compared HCV infection history, current infection, and associated behavioural and sociodemographic correlates among PWID recruited from rural and non-rural communities from Upstate New York (NY). This cross-sectional study recruited 309 PWID, using respondent-driven sampling. Blood samples were collected through finger stick for HCV antibody and RNA tests. A survey was also self-administered for HCV infection history, sociodemographics and behavioural correlates to compare by setting rurality. HCV seropositivity was significantly higher among PWID from rural than non-rural communities (71.0% vs. 46.8%), as was current infection (41.4% vs. 25.9%). High levels of past year syringe (44.4%) and equipment (62.2%) sharing were reported. Factors associated with infection history include syringe service program utilization, non-Hispanic white race, sharing needles and methamphetamine injection, which was higher in rural vs. non-rural communities (38.5% vs. 15.5%). HCV burden among PWID appears higher in rural than non-rural communities and may be increasing possibly due to greater levels of methamphetamine injection. On-going systematic surveillance of HCV prevalence and correlates is crucial to respond to the changing opioid epidemic landscape. Additionally, improving access to harm reduction services, especially with special focus on stimulants, may be important to reduce HCV prevalence among PWID in rural settings.

A qualitative investigation of organizational challenges and facilitators to screening individuals experiencing homelessness for hepatitis C virus (HCV) in Houston, Texas

Background

Individuals experiencing homelessness may be at a disproportionately high risk for hepatitis C (HCV) because they may be more likely to engage in HCV risk behaviors. Community organizations that provide services to these vulnerable individuals can effectively screen, diagnose, and navigate them into HCV care. However, screening people experiencing homelessness for HCV at such organizations is limited by various challenges that remain understudied, including budgetary considerations and strategies to improve teamwork and communication. Accordingly, this study investigated the organizational challenges and facilitators to HCV screening of individuals experiencing homelessness as reported by homeless services providers.

Methods

Staff (N = 21) at two community organizations in Houston, Texas, completed an interviewer-administered survey and a semi-structured interview in August 2020 to assess the challenges and facilitators to screening people experiencing homelessness for HCV. Interviews were coded, and a thematic analysis was conducted to identify challenges as well as facilitators to HCV screening among individuals experiencing homelessness.

Results

Almost half of participants were employed in social services (42.86%; n = 9), while the remainder were employed in management/administration and health services. Barriers to HCV screening included funding, logistics, and resource-related challenges; and limited communication and collaboration around HCV screening. Facilitators to HCV screening included providing HCV education and training for all staff; and incentivizing, formalizing, and funding HCV screening.

Conclusions

Community organizations can help minimize barriers to HCV screening among individuals experiencing homelessness by providing staff with training specific to HCV, client education around HCV and the screening process, and providing clients with incentives for participation, as well as by maximizing community and clinic partnerships to provide linkage to care and services to this high-risk population.

Investigating the sociodemographic and behavioural factors associated with hepatitis C virus testing amongst people who inject drugs in England, Wales and Northern Ireland: A quantitative cross-sectional analysis

BACKGROUND

Hepatitis C virus (HCV) transmission in the UK is driven by injecting drug use. We explore HCV testing uptake amongst people who inject drugs (PWID) in England, Wales and Northern Ireland, and identify factors associated with i) ever having an HCV test amongst people who have ever injected drugs, and ii) recently having an HCV test (within the current or previous year) amongst people who currently inject drugs (reported injecting drugs within the last year).

METHODS

We analysed data from the 2019 'Unlinked Anonymous Monitoring Survey' of PWID, using logistic regression.

RESULTS

Of 3,127 PWID, 2,065 reported injecting drugs within the last year. Most (86.7%) PWID had a lifetime history of HCV testing. In multivariable analysis, higher odds of ever testing were associated with: female sex (aOR=1.54; 95%CI 1.11-2.14), injecting duration ≥3 years (aOR=2.94; 95%CI 2.13-4.05), ever receiving used needles/syringes (aOR=1.74; 95%CI 1.29-2.36), ever being on opioid agonist treatment (aOR=2.91; 95%CI 2.01-4.21), ever being imprisoned (aOR=1.86; 95%CI 1.40-2.48) and ever being homeless (aOR=1.54; 95%CI 1.14-2.07). Amongst PWID who had injected drugs within the last year, 49.9% had recently undertaken an HCV test. After adjustment, factors associated with higher odds of undertaking a recent HCV test included: injecting crack in the last year (aOR=1.29; 95%CI 1.03-1.61), experiencing a non-fatal overdose in the last year (aOR=1.39; 95%CI 1.05-1.85), ever being on opioid agonist treatment (aOR=1.48; 95%CI 0.97-2.25), receiving HCV information in the last year (aOR=1.99; 95%CI 1.49-2.65) and using a healthcare service in the last year (aOR=1.80; 95%CI 1.21-2.67).

CONCLUSION

Results suggest that PWID who have experienced homelessness and incarceration - amongst the most vulnerable and marginalised in the PWID population - are engaging with HCV testing, but overall there remain missed testing opportunities. Recent initiates to injecting have highest HCV infection risk but lower odds of testing, and peer-education may help target this group.

Can Telemedicine Optimize the HCV Care Cascade in People Who Use Drugs? Features of an Innovative Decentralization Model and Comparison with Other Micro-Elimination Strategies

People who use drugs (PWUDs) are a crucial population in the global fight against viral hepatitis. The difficulties in linkage to care, the low adherence to therapy, the frequent loss to follow-up and the high risk of re-infection make the eradication process of the hepatitis C virus (HCV) really hard in this viral reservoir. Several management and treatment models have been tested with the aim of optimizing the HCV care cascade in PWUDs. Models of decentralization of the care process and integration of services seem to provide the highest success rates. Giving this, telemedicine could favor the decentralization of diagnostic-therapeutic management, key for the implementation of linkage to care, reduction of waiting times, optimization of adherence and results and reduction of the costs. The purpose of this literature review is to examine the role and possible impact of telemedicine in optimizing the HCV care cascade, comparing the different care models that have shown to improve the linkage to care and therapeutic adherence in this special population.

Interventions to increase linkage to care and adherence to treatment for hepatitis C among people who inject drugs: A systematic review and practical considerations from an expert panel consultation

BACKGROUND

Following advances in treatment for hepatitis C (HCV), optimizing linkage to care and adherence to treatment of people who inject drugs became of pivotal importance. An ECDC/EMCDDA stakeholders survey in 2018 indicated that two components of the cascade of care, linkage to care and adherence to treatment, were priority areas for inclusion in the updated guidance, planned for publication in 2022. This systematic review was commissioned with the aim to evaluate the effectiveness of interventions on HCV linkage to care and adherence to treatment among people who inject drugs.

METHODS

The full study protocol is available at PROSPERO (2020 CRD42020191116). We searched five databases to identify studies published between 2011 and 2020. Studies were included if they had a comparative study design and reported on the primary outcomes for linkage to care (visits, treatment initiation) and/or adherence to treatment (treatment adherence, treatment completion, SVR12) among people who inject drugs/people receiving opioid substitution therapy. Following the risk of bias (EPHPP) and quality of evidence assessment (GRADE), evidence to decision tables were produced and shared for critical review with an expert panel convened by ECDC and EMCDDA. The expert panel provided further considerations on the benefit, acceptability, and transferability of interventions.

RESULTS

Fourteen studies (using DAA therapy as well as DAA plus interferon-based therapy) met eligibility criteria and were included in the analysis. Integrated care with case management, peer support, psychological interventions, contingency management, and cooperation between health care providers improved engagement in and adherence to HCV care in most studies. However, the quality of evidence was predominantly low to moderate.

CONCLUSIONS

Available evidence suggests that integrated, people-centered approaches may improve engagement throughout the continuum of HCV care among people who inject drugs. For progressing HCV elimination efforts, interventions should be implemented in colocation with harm reduction and counselling activities and in combination with additional services, including opioid substitution treatment, directly observed therapy, peer support and/or contingency management.

An on-site community-based model for hepatitis C screening, diagnosis, and treatment among people who inject drugs in Kerman, Iran: The Rostam study

BACKGROUND

People who inject drugs (PWID) are at high risk for hepatitis C virus (HCV) infection and its complications in many countries, including Iran. This pilot study aimed to evaluate the effect of a community-based HCV model of care on HCV testing and treatment initiation among PWID in Kerman, Iran.

METHODS

This study is part of the Rostam study and is a non-randomized trial evaluating the effect of on-site HCV- antibody rapid testing, venipuncture for HCV RNA testing, and treatment eligibility assessment on HCV testing and treatment initiation among PWID. Recruitment, interviews, and HCV screening, diagnosis, and treatment were all conducted at a community-based drop-in center (DIC) serving PWID clients.

RESULTS

A total of 171 PWID (median age of 39 years and 89.5% male) were recruited between July 2018 and May 2019. Of 62 individuals who were HCV antibody positive, 47 (75.8%) were HCV RNA positive. Of RNA-positive individuals, 36 (76.6%) returned for treatment eligibility assessment. Of all the 36 participants eligible for treatment, 34 (94.4%) initiated HCV antiviral therapy. A sustained virologic response at 12 weeks post-treatment was 76.5% (26/34) in the intention-to-treat (ITT group) analysis and 100% (23/23) in the per-protocol (PP group) analysis.

CONCLUSION

Our integrated on-site community-based HCV care model within a DIC setting suggested that HCV care including HCV testing and treatment uptake can be successfully delivered outside of hospitals or specialized clinics; a model which is more likely to reach PWID and can provide significant progress towards HCV elimination among this population.

Chronic liver disease in homeless individuals and performance of non-invasive liver fibrosis and injury markers: VALID study

BACKGROUND/AIMS

Community-based assessment and management of chronic liver disease (CLD) in people who are homeless (PWAH) remain poorly described. We aimed to determine prevalence/predictors of CLD in PWAH and assess the performance of non-invasive liver fibrosis and injury markers.

METHODS

The Vulnerable Adult LIver Disease (VALID) study provided a "one-stop" liver service based at homeless hostels. Our primary outcome was the prevalence of clinically significant hepatic fibrosis (CSHF; liver stiffness measurement (LSM) ≥8 kPa).

RESULTS

Total individuals recruited were 127, mean ± SD age 47 ± 9.4 years, 50% (95% CI 41%-59%) and 39% (95% CI 31%-48%) having alcohol dependence and a positive HCV RNA respectively. CSHF was detected in 26% (95% CI 17%-35%), independent predictors being total alcohol unit/week (OR 1.01, 95% CI 1.00-1.02, P = .002) and HCV RNA positivity (OR 2.93, 95% CI 1.12-7.66, P = .029). There was moderate agreement between LSM and Enhanced Liver Fibrosis (ELF) score (kappa 0.536, P < .001) for CSHF as assessed by LSM ≥8 kPa. Those with CSHF had significantly higher levels of IFN-γ (P = .002), IL-6 (P = .001), MMP-2 (P = .006), ccCK-18 (P < .001) and ELF biomarkers (P < .001), compared to those without CSHF. Service uptake was ≥95%. Direct acting antiviral (DAA) treatment completion was 93% (95% CI 77%-99%), sustained virological response (SVR) being 83% (95% CI 64%-94%).

CONCLUSION

There is a significant liver disease burden from HCV and alcohol in PWAH. Non-invasive liver fibrosis and injury markers can help in identifying such individuals in the community. Despite a challenging cohort, excellent service uptake and high DAA-based SVRs can be achieved.

'Not just one box that you tick off' - Deconstructing the hepatitis C care cascade in the interferon-free direct acting antiviral era from the client perspective

BACKGROUND

To achieve hepatitis C viral (HCV) elimination targets set by the World Health Organisation, pillars of the HCV care cascade are often referenced to track progress. The aim of this qualitative study was to explore the limitations of the care cascade framework through the real-world accounts of 'HCV journeys' among people who inject drugs (PWID), with particular attention to the intersection of PWID agency and structural determinants in the healthcare system.

METHODS

An in-depth analysis was conducted on five case studies to better understand participant experiences 'behind the cascade pillars'. The five case studies were drawn from the ETHOS Engage cohort as exemplars of the real-world complexities of people's HCV cascade journeys. Inclusion criteria for the qualitative study were participant has voluntarily signed the informed consent form, aged ≥18 years, HCV antibody positive by self-report, clients of selected sites participating in the ETHOS Engage cohort, and sufficiently proficient in English to participate in an interview. Thirty-four semi-structured interviews were conducted with participants who had received or had not received HCV treatment to identify barriers and facilitators to HCV care.

RESULTS

Participants 'housed' at the 'HCV RNA diagnosed pillar' (n = 2; Will; Julie) reported withholding their HCV serostatus in certain healthcare settings for fear that disclosure would lead to discriminatory decision-making from their treating physician. among participants who had completed treatment (n = 3; Corey; John; Nora) two reported still being unsure of their HCV status >6 months post-treatment. Ongoing feelings of frustration and shame were expressed in this 'post-cure care pillar' due to a perceived lack of quality care from clinic services and continued uneasiness when discussing drug use and reinfection while receiving opioid agonist treatment (OAT). Both case 'categories' described often tenuous therapeutic relationships with their physicians and recommended task-shifting to nurses and trusted case workers for ongoing care.

CONCLUSION

The care cascade provides a linear, two dimensional snapshot of clinical targets. Our findings illuminate structural barriers not visible behind its 'static' pillars, presenting insights into experiences among PWID otherwise dismissed as 'disengaged' or 'lost to follow-up'.

Barriers and facilitators to hepatitis C screening and treatment for people with lived experience of homelessness: A mixed-methods systematic review

BACKGROUND

People experiencing homelessness have an increased risk of hepatitis C virus (HCV) infection, with rates higher than the general population. However, their access to HCV diagnosis is limited and treatment uptake is low.

OBJECTIVES

To identify and describe the barriers and facilitators for HCV screening and treatment for adults with lived experience of homelessness in highly developed countries.

METHODS

Bibliographic databases (Embase, MEDLINE, CINAHL and SocINDEX) and grey literature (Google, EThOS, the Health Foundation, Social Care Online, the World Health Organisation, Shelter, Crisis and Pathway) were searched. Two reviewers independently screened and appraised all studies. The Critical Appraisal Skills Programme tool and the Joanna Briggs Institute checklist were used. The analysis involved a three-stage process: coding, theme generation and theme mapping under Penchansky and Thomas's modified access model.

RESULTS

Twelve papers/reports were included in the review. Several interacting factors influence access of people with lived experience of homelessness to HCV testing and treatment. Some mirror those identified for the general population. The precarious conditions associated with the lived experience of homelessness along with the rigidity of hospital settings and lack of awareness emerged as dominant barriers. Flexibility, outreach, effective communication, tailoring and integration of services were found to be important facilitators. Evidence from Black, Asian and minority ethnic groups is limited.

CONCLUSIONS

People experiencing homelessness face multiple barriers in accessing and completing HCV treatment, relating to both their lived experience and characteristics of health systems. Although some barriers are readily amenable to change, others are more difficult to modify. The facilitators identified could inform future targeted measures to improve HCV diagnosis and treatment for people experiencing homelessness. Research is warranted into successful models to promote screening, diagnosis and treatment.

PATIENT OR PUBLIC CONTRIBUTION

Our team includes a peer advocate, a hepatology nurse and a community volunteer, all with significant experience in promoting and engaging in HCV care and outreach for people experiencing homelessness. They contributed to the protocol, interpretation and reporting of the review findings.

Acceptability of, and barriers and facilitators to, a pilot physical health service for people who inject drugs: A qualitative study with service users and providers

BACKGROUND

People who inject drugs may experience difficulty accessing or maintaining involvement with traditional healthcare services. This is associated with increased health inequalities and bio-psychosocial difficulties. Embedding physical healthcare services within community-based drug services may provide a practical and feasible approach to increase access and delivery of healthcare. This study explored the acceptability of, and barriers and facilitators to, embedding a pilot physical healthcare service within a community-based drug service in the United Kingdom (Bristol, England).

METHODS

Semi-structured interviews were conducted with service users (people who inject drugs) (n = 13), and a focus group was conducted with service providers (n = 11: nine harm reduction workers, two nurses, one service manager). Topic guides included questions to explore barriers and facilitators to using and delivering the service (based on the COM-B Model), and acceptability of the service (using the Theoretical Framework of Acceptability). Transcripts were analysed using a combined deductive framework and inductive thematic analysis approach.

RESULTS

The service was viewed as highly acceptable. Service users and providers were confident they could access and provide the service respectively, and perceived it to be effective. Barriers included competing priorities of service users (e.g. drug use) and the wider service (e.g. equipment), and the potential impact of the service being removed in future was viewed as a barrier to overall healthcare access. Both service users and providers viewed embedding the physical health service within an existing community-based drug service as facilitating accessible and holistic care which reduced stigma and discrimination.

CONCLUSIONS

The current study demonstrated embedding a physical health service within an existing community-drug based and alcohol service was acceptable and beneficial. Future studies are required to demonstrate cost-effectiveness and ensure long-term sustainability, and to determine transferability of findings to other settings, organisations and countries.

Client resistance to hepatitis C treatment initiation in opioid agonist treatment clinics in Sydney, Australia: A qualitative study

INTRODUCTION

Opioid agonist treatment (OAT) clinics play a key role in achieving elimination of hepatitis C virus (HCV) globally. Previous research has identified barriers to HCV treatment uptake in OAT clinics; however, most studies were conducted prior to the introduction of direct-acting antiviral treatments (DAA). It remains unclear whether progress has been made in responding to barriers and what challenges persist in this setting.

METHODS

Semi-structured in-depth interviews were conducted with staff (n = 20) and clients (n = 15) in two OAT clinics in Sydney, Australia. Interviews were transcribed verbatim and analysed using constant comparative methods.

RESULTS

Despite progress in integrating hepatitis C care in the clinics, competing priorities, concerns about side-effects, distrust of staff, health problems and difficulties accessing testing and medication persisted as key reasons why clients had not initiated treatment. Most clients preferred to postpone treatment and focus on other priorities and some highlighted lack of medical evidence for urgent treatment. Pressure on services to achieve elimination targets within set time frames was a primary driver of repeated offers of treatment by staff and the framing of clients' preferences for postponing treatment, as a barrier.

DISCUSSION AND CONCLUSION

Current timelines for HCV elimination targets may have galvanised services into action but may have also created tensions at the coalface due to disparities between staff and clients' priorities. The involvement of peer workers and mechanisms to ensure continued follow up with clients about DAA treatments is required. Public health timelines for HCV elimination need to be informed by affected communities' priorities.

Hepatitis C virus cascade of care among people who inject drugs in Australia: Factors associated with testing and treatment in a universal healthcare system

BACKGROUND

Understanding factors associated with engagement across the hepatitis C virus (HCV) cascade of care (CoC) among people who inject drugs (PWID) is critical for developing targeted interventions to enhance engagement and further HCV elimination efforts. We describe the CoC among Australian PWID, and identify factors associated with engagement at each stage.

METHODS

As part of the 2018 and 2019 Illicit Drug Reporting System, Australians who regularly inject drugs reported lifetime HCV antibody and RNA testing, treatment uptake and completion. Multivariable logistic regression identified characteristics associated with outcomes.

RESULTS

Of 1499 participants, 87% reported antibody testing. Of those, 70% reported RNA testing, of whom 60% reported being RNA positive. Among those, 76% reported initiating treatment, 78% of whom completed. Incarceration history (adjusted odds ratio 1.90; 95% confidence interval 1.28-2.82), current opioid agonist treatment (OAT) (1.99; 1.14-3.47), and recent alcohol and other drug (AOD) counselling (2.22; 1.27-3.88) were associated with antibody testing. Incarceration history (1.42; 1.07-1.87), and current OAT (2.07; 1.51-2.86) were associated with RNA testing. Current OAT (1.92; 1.22-3.03) and recent AOD counselling (1.91; 1.16-3.13) were associated with treatment uptake. Methamphetamine as drug injected most often in the last month was associated with reduced odds of antibody (0.41; 0.25-0.66) and RNA testing (0.54; 0.40-0.74), compared to heroin.

CONCLUSION

CoC engagement amongst Australian PWID is encouraging, with AOD service engagement associated with testing and treatment. Further efforts to reach those not service engaged, particularly those not receiving OAT or who predominantly inject methamphetamine, are needed to achieve HCV elimination targets.

Patient Centeredness in Hepatitis C Direct-Acting Antiviral Treatment Delivery to People Who Inject Drugs: A Scoping Review

BACKGROUND AND OBJECTIVE

Patient-centered care (PCC) is crucial for value-based care. We aimed to assess PCC dimensions addressed in hepatitis C virus direct-acting antiviral treatment delivery to people who inject drugs.

METHODS

We conducted a scoping review to identify the studies that described hepatitis C virus treatment delivery to people who inject drugs in the direct-acting antiviral treatment era. We analyzed the included studies against eight PCC dimensions: (1) access to care; (2) coordination and integration of care; (3) continuity and translation; (4) physical comfort; (5) information, education, and communication; (6) emotional support; (7) involvement of family and friends; and (8) respect for individual patient preferences, perceived needs, and values. Additionally, we assessed the use of patient-centered terminology and the recognition of PCC importance and its relevance to treatment outcomes.

RESULTS

None of the identified 36 studies addressed all PCC dimensions (highest seven, lowest two). Our findings revealed that PCC dimensions are prioritized differently and addressed using different approaches and strategies. Studies that used PCC terminology referred to personalized activities, which does not imply comprehensive PCC. About one-third of the studies acknowledged the importance of patient centeredness and two-thirds recognized its relevance to treatment outcomes.

CONCLUSIONS

Our findings suggest more engagement of people who inject drugs and comprehensive involvement of their families and friends in hepatitis C virus treatment journey, decisions, and outcomes. The recognition of PCC importance and its relevance to treatment outcomes in the analyzed studies emphasizes the need for more patient-centered hepatitis C virus treatment for people who inject drugs.

Direct-acting antiviral treatment uptake and sustained virological response outcomes are not affected by alcohol use: A CANUHC analysis

BACKGROUND

Alcohol use and hepatitis C virus (HCV) are two leading causes of liver disease. Alcohol use is prevalent among the HCV-infected population and accelerates the progression of HCV-related liver disease. Despite barriers to care faced by HCV-infected patients who use alcohol, few studies have analyzed uptake of direct-acting antiviral (DAA) treatment.

OBJECTIVE

We compared rates of treatment uptake and sustained virological response (SVR) between patients with and without alcohol use.

METHODS

Prospective data were obtained from the Canadian Network Undertaking against Hepatitis C (CANUHC) cohort. Consenting patients assessed for DAA treatment between January 2016 and December 2019 were included. Demographic and clinical characteristics were compared between patients with and without alcohol use by means of t-tests, χ2 tests, and Fisher's Exact Tests. Univariate and multivariate analyses were used to determine predictors of SVR and treatment initiation.

RESULTS

Current alcohol use was reported for 217 of 725 (30%) patients. The proportion of patients initiating DAA treatment did not vary by alcohol use status (82% versus 83%; p = 0.99). SVR rate was similar between patients with alcohol use and patients without alcohol use (92% versus 94%; p = 0.45). Univariate and multivariate analysis found no association between alcohol use and SVR or treatment initiation.

CONCLUSION

Patients engaged in HCV treatment have highly favourable treatment uptake and outcomes regardless of alcohol use. Public health interventions should be directed toward facilitating access to care for all patients irrespective of alcohol use. Research into high-level alcohol use and DAA outcomes is needed.

Role of community drug and alcohol services in physical healthcare for people who use illicit opioids: a qualitative study of clinical staff in the UK

OBJECTIVES

To understand how clinicians working in addiction services perceive their responsibilities for physical healthcare of clients who use opioids, and how physical healthcare could be improved for this group.

DESIGN

Qualitative study comprising semistructured interviews.

PARTICIPANTS

16 clinicians, including nurses and nurse practitioners, nurse consultants, addiction psychiatrists, specialist general practitioners and psychiatry specialty registrars.

SETTING

Community-based drug and alcohol treatment services in the UK, with services including outpatient opioid agonist therapy.

RESULTS

We identified three overarching themes. First, clients have unmet physical health needs that are often first identified in community drug and alcohol services. Participants reported attempts to improve their clients' access to healthcare by liaising directly with health services and undertaking other forms of health advocacy, but report limited success, with many referrals ending in non-attendance. Second, most participants saw their role as supporting access to mainstream health services rather than providing physical healthcare directly, though sometimes reported frustration at being unable to provide certain treatments such as antibiotics for a respiratory infection. A minority of participants felt that people who use illicit opioids would be best served by an integrated 'one-stop-shop' model, but felt this model is currently unlikely to receive funding. Third, participants felt isolated from other health services, in part due to commissioning arrangements in which funding is provided through local government rather than the National Health Service.

CONCLUSIONS

Clinicians participating in this study serve a patient group with unmet physical health needs, but lack the resources to respond effectively to these needs.

Progress Towards Elimination of Hepatitis C Infection Among People Who Inject Drugs in Australia: The ETHOS Engage Study

BACKGROUND

Evaluating progress towards hepatitis C virus (HCV) elimination is critical. This study estimated prevalence of current HCV infection and HCV treatment uptake among people who inject drugs (PWID) in Australia.

METHODS

The Enhancing Treatment of Hepatitis C in Opioid Substitution Settings Engage is an observational study of PWID attending drug treatment clinics and needle and syringe programs (NSPs). Participants completed a questionnaire including self-reported treatment history and underwent point-of-care HCV RNA testing (Xpert HCV Viral Load Fingerstick; Cepheid).

RESULTS

Between May 2018 and September 2019, 1443 participants were enrolled (64% injected drugs in the last month, 74% receiving opioid agonist therapy [OAT]). HCV infection status was uninfected (28%), spontaneous clearance (16%), treatment-induced clearance (32%), and current infection (24%). Current HCV was more likely among people who were homeless (adjusted odds ratio, 1.47; 95% confidence interval, 1.00-2.16), incarcerated in the previous year (2.04; 1.38-3.02), and those injecting drugs daily or more (2.26; 1.43-2.42). Among those with previous chronic or current HCV, 66% (n = 520/788) reported HCV treatment. In adjusted analysis, HCV treatment was lower among females (.68; .48-.95), participants who were homeless (.59; .38-.96), and those injecting daily or more (.51; .31-.89). People aged ≥45 years (1.46; 1.06-2.01) and people receiving OAT (2.62; 1.52-4.51) were more likely to report HCV treatment.

CONCLUSIONS

Unrestricted direct-acting antiviral therapy access in Australia has yielded high treatment uptake among PWID attending drug treatment and NSPs, with a marked decline in HCV prevalence. To achieve elimination, PWID with greater marginalization may require additional support and tailored strategies to enhance treatment.

Association Between Opioid Agonist Therapy and Testing, Treatment Uptake, and Treatment Outcomes for Hepatitis C Infection Among People Who Inject Drugs: A Systematic Review and Meta-analysis

BACKGROUND

People who inject drugs (PWID) experience barriers to accessing testing and treatment for hepatitis C virus (HCV) infection. Opioid agonist therapy (OAT) may provide an opportunity to improve access to HCV care. This systematic review assessed the association of OAT and HCV testing, treatment, and treatment outcomes among PWID.

METHODS

Bibliographic databases and conference presentations were searched for studies that assessed the association between OAT and HCV testing, treatment, and treatment outcomes (direct-acting antiviral [DAA] therapy only) among PWID (in the past year). Meta-analysis was used to pool estimates.

RESULTS

Of 9877 articles identified, 22 studies conducted in Australia, Europe, North America, and Thailand were eligible and included. Risk of bias was serious in 21 studies and moderate in 1 study. Current/recent OAT was associated with an increased odds of recent HCV antibody testing (4 studies; odds ratio (OR), 1.80; 95% confidence interval [CI], 1.36-2.39), HCV RNA testing among those who were HCV antibody-positive (2 studies; OR, 1.83; 95% CI, 1.27-2.62), and DAA treatment uptake among those who were HCV RNA-positive (7 studies; OR, 1.53; 95% CI, 1.07-2.20). There was insufficient evidence of an association between OAT and treatment completion (9 studies) or sustained virologic response following DAA therapy (9 studies).

CONCLUSIONS

OAT can increase linkage to HCV care, including uptake of HCV testing and treatment among PWID. This supports the scale-up of OAT as part of strategies to enhance HCV treatment to further HCV elimination efforts.

Care Facilitation Advances Movement Along the Hepatitis C Care Continuum for Persons With Human Immunodeficiency Virus, Hepatitis C, and Substance Use: A Randomized Clinical Trial (CTN-0064)

Background

Direct-acting antivirals can cure hepatitis C virus (HCV). Persons with HCV/HIV and living with substance use are disadvantaged in benefiting from advances in HCV treatment.

Methods

In this randomized controlled trial, participants with HCV/HIV were randomized between February 2016 and January 2017 to either care facilitation or control. Twelve-month follow-up assessments were completed in January 2018.

Care facilitation group participants received motivation and strengths-based case management addressing retrieval of HCV viral load results, engagement in HCV/HIV care, and medication adherence. Control group participants received referral to HCV evaluation and an offer of assistance in making care appointments. Primary outcome was number of steps achieved along a series of 8 clinical steps (eg, receiving HCV results, initiating treatment, sustained virologic response [SVR]) of the HCV/HIV care continuum over 12 months postrandomization.

Results

Three hundred eighty-one individuals were screened and 113 randomized. Median age was 51 years; 58.4% of participants were male and 72.6% were Black/African American. Median HIV-1 viral load was 27 209 copies/mL, with 69% having a detectable viral load. Mean number of steps completed was statistically significantly higher in the intervention group vs controls (2.44 vs 1.68 steps; χ ² [1] = 7.36, P = .0067). Men in the intervention group completed a statistically significantly higher number of steps than controls. Eleven participants achieved SVR with no difference by treatment group.

Conclusions

The care facilitation intervention increased progress along the HCV/HIV care continuum, as observed for men and not women. Study findings also highlight continued challenges to achieve individual-patient SVR and population-level HCV elimination.

Clinical Trials Registration

NCT02641158.

Adherence to pregnancy hepatitis B care guidelines in women and infants in the United States and evaluation of two interventions to improve care: A multicentre hospital-based study

There has been an increase in hepatitis B (HBV) detection during pregnancy in the United States and an emphasis on measures to decrease mother-to-child transmission of HBV. We performed a multicentre retrospective study (2015-2018) evaluating care among all women with HBV during pregnancy. We determined rates and predictors of adherence to key maternal care measures including: (1) referral to HBV specialty care, (2) assessment of HBV DNA, and (3) initiation of antiviral therapy, and (4) rates of HBIG and HBV vaccine completion in infants. We evaluated two interventions to improve HBV care: (1) clinical decision support with best practice alert and (2) co-location of HBV care in obstetrics department. We identified 372 women with HBV during pregnancy. Patients had a median age of 33 (IQR 29, 36), were mostly of Asian (49%) or Black (36%) race, HBeAg-negative (83%) with HBV DNA ≤2000 IU/mL (65%) and maximum ALT ≤25 (66%). Regarding care measures, 62% were referred to an HBV specialist, 85% had HBV DNA checked during pregnancy and 68% with HBV DNA ≥200,000 were initiated on antiviral therapy. Co-located obstetric-liver diseases clinics appeared to improve adherence to maternal care measures. All infants received HBIG and the first HBV vaccine dose, 106 (81%) received the second, 94 (74%) received the 3rd dose, but fewer at the recommended time intervals. We identified clear gaps in adherence to HBV care measures for both mothers and infants. Co-location of HBV care in the obstetrics department shows promise in improving adherence to maternal care measures.

The Changing Epidemiology of Hepatitis C Virus Infection in the United States During the Years 2010 to 2018

Hepatitis C virus (HCV) infection remains an important cause of morbidity and mortality throughout the world, leading to serious health problems among those who are chronically infected. Since 1992, the Centers for Disease Control and Prevention has been collecting data on the incidence of HCV infection in the United States. In 2018, more than 50 000 individuals were estimated to have acute HCV infection.The most recently reported data on the prevalence of infection indicate that approximately 2.4 million people are living with hepatitis C in the United States. Transmission of HCV occurs predominantly through sharing contaminated equipment for injecting drugs.Two major events have had a significant impact on the incidence and prevalence of hepatitis C in the past few decades: the US opioid crisis and the discovery of curative treatments for HCV infection. To better understand the impact of these events, we examine reported trends in the incidence and prevalence of infection.

Psychosocial Factors and the Care Cascade for Hepatitis C Treatment Colocated at a Syringe Service Program

BACKGROUND

Direct-acting antiviral (DAA) therapy for hepatitis C virus (HCV) is highly effective. However, people who inject drugs face significant barriers to DAA access.

METHODS

We describe a program that colocates HCV management within a syringe service program in New York City. We performed a retrospective chart review of all patients with confirmed HCV viremia.

RESULTS

From 2015 to 2018, 102 patients with viremia completed intake. Fifty-eight patients started DAAs. Nine patients discontinued treatment or were lost to follow-up before completion; 1 is continuing DAA treatment. Of 48 patients who completed therapy, sustained virologic response (SVR) was achieved in 43 (89.6%). Age and established mental health treatment at intake were associated with SVR. Regular cocaine use was negatively associated with SVR in univariate analysis, but this association was not significant after adjustment for age. Of 30 patients completing DAA therapy with active illicit opioid use at intake, 14 (46.4%) engaged in opioid use disorder (OUD) treatment during therapy, and 9 remained in OUD treatment after completion of DAA treatment.

CONCLUSIONS

Loss to follow-up is a challenge for people who inject drugs, but among those who completed treatment, SVR was achieved at a high rate. Mental health treatment may facilitate HCV cure. Conversely, HCV therapy may facilitate engagement in OUD treatment and other services.

Coordinated assistance plan for the elimination of hepatitis C virus at the centro de ayuda integral al drogodependiente (CAID (Comprehensive Care Centre for Drug Addicts))

INTRODUCTION

The drug-injecting population has a high prevalence of hepatitis C virus (HCV) and high risk of transmission. It is a priority to establish an agile diagnostic and treatment plan.

OBJECTIVES

1) Assess the effectiveness of a new coordinated care plan of referral from the Comprehensive Care Centre for Drug Addicts (CAID) to specialised care and 2) Determine the prevalence of HCV, clinical characteristics, effectiveness and safety of treatment in this population.

METHODS

1,300 serologies requested by the CAID between 1998 and 2018 were retrospectively analysed, the seroprevalence of HCV was calculated and the efficiency of the traditional CAID-specialised care referral system was evaluated. A care plan was designed and coordinated among specialists involved in diagnosis and treatment. Since October 2018, 11 patients have been included in the new plan and the performance of both referral systems was compared.

RESULTS

With the traditional system, 48.2% (83/172) of the patients were lost. 14.5% (172/1,300) presented positive HCV serology, compared to the general population OR = 19; 95% CI 14.3-25. The prevalence of active infection was 80.3% (90/112). The prevalence of active infection was 80.3% (90/112). Of the 11 patients referred by the new plan, 76.9% (8/11) had active infection and 100% (8/8) were treated with Direct Antiviral Agents successfully.

CONCLUSIONS

The new coordinated CAID-specialised care plan presents high effectiveness in comparison with the traditional referral system. The seroprevalence and prevalence of active infection in the CAID population is very high. Treatments with Direct Antiviral Agents are effective and safe.

Reasons for Not Seeking Hepatitis C Treatment among People Who Inject Drugs

Despite increases in treatment uptake for hepatitis C viral infection (HCV) in Australia since the introduction of direct acting antiviral (DAA) therapy, a large proportion of HCV-infected people who inject drugs (PWID) have not sought treatment. Purpose/Objectives: To examine predictors of treatment uptake and reasons for not seeking treatment among PWID. Methods: PWID (n = 404) recruited through five needle and syringe programs in South East Queensland were interviewed about HCV testing, status and treatment, recent injecting drug use, mental health and reasons for not taking up treatment. Predictors of treatment uptake were examined using unadjusted and adjusted logistic regression analyses. Proportions were calculated for participants reporting each reason for not taking up treatment. Results: We recruited 404 PWID. Of those tested for HCV (94%), 55% were HCV antibody positive and 31% with active infection. Approximately 36% of eligible participants had begun or completed DAA treatment. In adjusted analyses, injecting drugs three or more times per day was associated with not taking up HCV treatment (p = 0.005). Common reasons for not seeking treatment ("applied a lot") included experiencing no HCV-related symptoms (25%), HCV treatment not being a priority (23%), fear of treatment side effects (18%), and no knowledge of DAA treatments (15%). Conclusions/Importance: HCV education efforts for PWID should target misperceptions and lack of awareness of DAA therapy, and highlight the likely benefits of treatment even when asymptomatic. The use of peer workers and increased investment in integrated treatment facilities will likely aid treatment uptake.

Innovative procedures for micro-elimination of HCV infection in persons who use drugs

People who use drugs are a key population in global HCV control. We evaluated the efficacy of an innovative model to eliminate HCV infection in a high-risk population of PWUD in a service for substance use disorder (SUD). Between January 2018 and December 2018, we conducted a prospective, interventional, before and after study, based on audits performed by Infectious Diseases physicians in a SUD facility in Piedimonte Matese, in southern Italy, to improve the knowledge about HCV infection; a shared protocol for screening and linkage to care of patients was implemented. The pre-intervention period was defined as January-December 2017 and the post-intervention period as January-December 2018. The subjects followed up at SUD facility in the pre-intervention and post-intervention periods were 318 and 275, respectively. Compared with the pre-intervention period, the number of anti-HCV-positive subjects tested for HCV RNA was higher in the post-intervention period (91% vs 27%, P < .0001), as was the number who started directly acting antivirals (DAAs). Of the 18 HCV RNA-positive subjects in the pre-intervention period, only 3 (16.6%) started DAA, a percentage decisively lower than that observed after the start of the programme, 63 (84%) of 75 subjects (P < .0001), and all obtained SVR. The data were similar for people who inject drugs (PWID) and non-PWID sub-populations. The use of our innovative model with close interaction between the Infectious Disease Unit and the SUD facility determined a significant increase in HCV RNA testing, linkage to care and the start of DAA in the PWUD population.