Lower HCV treatment uptake in women who have received opioid agonist therapy before and during the DAA era: The ANRS FANTASIO project

Gender-based factors associated with hepatitis C testing in people who inject drugs: results from the French COSINUS cohort

OBJECTIVE

We identified factors associated with hepatitis C virus (HCV) testing in the previous 6 months in people who inject drugs (PWID) according to gender.

DESIGN

COSINUS (Cohorte pour l'évaluation des facteurs Structurels et Individuels de l'USage de drogues) is a multisite longitudinal cohort study conducted between June 2016 and May 2019.

SETTING

Harm reduction facilities in two French cities (Marseille and Bordeaux).

PARTICIPANTS

Eligibility criteria were as follows: 18 years of age or older, French speaking, regular use of illegal drugs or of prescribed medication, having injected at least once in the previous month and being able to provide informed consent to participate. We selected data for 298 participants (624 observations).

PRIMARY OUTCOME

Self-reporting HCV testing in the previous 6 months. Gender was defined as self-identifying as a woman, man or transgender person.

RESULTS

Seventy-nine per cent (n=235) of the sample were men, and 63% (n=189) reported HCV testing in the previous 6 months. Our results suggest that men recently incarcerated (OR (95% CI): 3.26 (1.31, 8.12), p=0.011), those regularly attending harm reduction facilities (OR (95% CI): 2.49 (1.47, 4.22), p=0.001), and those with lifetime attempted suicide (OR (95% CI): 2.07 (1.08, 3.95), p=0.028) were more likely to have been tested for HCV in the previous 6 months, whereas older men were less likely (OR (95% CI): 0.46 (0.24, 0.89), p=0.022). Women who had slept in the street (OR (95% CI): 3.95 (1.12, 13.89), p=0.032) were more likely to have been tested for HCV in the previous 6 months, whereas those employed (OR (95% CI): 0.31 (0.12, 0.83), p=0.019) and those with lifetime attempted suicide (OR (95% CI): 0.39 (0.16, 0.97), p=0.044) were less likely.

CONCLUSION

Our results highlight the importance of improving current harm reduction facilities for PWID by adapting them to women's needs and paying special attention to women's mental health. Furthermore, in the context of primary care, improving provider training and reducing injection-related stigma may improve HCV testing uptake in older men and employed women.

Factors associated with hepatitis C treatment uptake among females of childbearing age in New South Wales, Australia: A population-based study

INTRODUCTION

Females of childbearing age with hepatitis C virus (HCV) face increased marginalisation with intersecting, sex-specific barriers to direct acting antiviral (DAA) therapy. We assessed the factors associated with uptake of DAA therapy among females of childbearing age, including those with evidence of recent drug dependence.

METHODS

HCV notifications in New South Wales, Australia (1995-2017) were linked to opioid agonist therapy (OAT), hospitalisations, incarcerations, perinatal, HIV notifications, deaths and prescription databases. Recent drug dependence was defined as hospitalisation due to injectable drugs or receipt of OAT occurring in the DAA era (2016-2018). Logistic regression was used to analyse factors associated with DAA uptake among females of childbearing age (18-44), including those with recent drug dependence.

RESULTS

Among 57,467 people with evidence of chronic HCV in the DAA era (2016-2018), 20,161 (35%) were female, including 33% (n = 6563/20,161) of childbearing age (18-44). Among all females of childbearing age (n = 6563) and those with evidence of recent drug dependence (n = 2278/6563, 35%), DAA uptake was lower among those who had given birth in the DAA era (vs. no birth record, all females of childbearing age; aOR: 0.74, 95% CI 0.61, 0.89; those with recent drug dependence; aOR 0.69, 95% CI 0.51, 0.93) and Aboriginal and Torres Strait Islander peoples (all females of childbearing age; aOR 0.81, 95% CI 0.71, 0.93; those with recent drug dependence aOR 0.75, 95% CI 0.62, 0.90).

CONCLUSION

Females of childbearing age should be considered a key population for DAA therapy. Enhancing antenatal and postnatal HCV care may be critical in the pursuit towards elimination.

Applying a stigma and time framework to facilitate equitable access to hepatitis C care among women who inject drugs: The ETHOS Engage Study

BACKGROUND

Women who inject drugs are significantly less likely to initiate hepatitis C virus (HCV) treatment than men. Concerted efforts are needed to minimise gender-based inequalities in care. The study aim was to use a stigma and time framework to investigate how women who inject drugs experienced HCV care in healthcare settings.

METHODS

Semi-structured, in-depth interviews were conducted with 34 participants from the ETHOS Engage Cohort (n = 1,443) in Australia. Inclusion criteria were aged ≥18 years, history of injection drug use, and persons who injected in the prior six months or were currently receiving opioid agonist treatment. Drawing on the original qualitative dataset (n = 34), we conducted a secondary analysis focused on women participants' experiences of receiving HCV related care (n = 21/34). Utilising thematic analysis, we applied Earnshaw's theoretical framework, which incorporates time into stigma and health research via three "timescales" - historical context, human development, and status course.

RESULTS

Among the 21 women interviewed (mean age 42 years, 5 are Aboriginal, 11 received HCV treatment), the majority were currently receiving opioid agonist treatment and over half injected drugs in the past month. For historical context, most participants were diagnosed with HCV during the interferon era (1990s-2014). Participants had to navigate a sociomedical landscape not only largely bereft of adequate HCV medical knowledge, appropriate support, and adequate treatments, but were also generally assessed as "unsuitable" for treatment based on their perceived personhood as people who inject drugs. For human development, many participants reported encountering overlapping stigmatizing experiences (layered stigma) while receiving their HCV diagnosis in prenatal care and early postpartum. Under status course, participants acutely recognised the intersection of HCV infection, injection drug use, and gender, and reported concerns about being judged more harshly from healthcare providers as a result.

CONCLUSION

A stigma and time framework illuminated multiple overlapping stigmatizing experiences for women who inject drugs in HCV care and in turn, can help to inform tools and interventions to counter their impact.

Factors associated with hepatitis C testing, treatment, and current hepatitis C infection among men and women who inject drugs: The ETHOS engage study

BACKGROUND

Evaluating gender-specific trends in hepatitis C virus (HCV) treatment uptake among men and women who inject drugs is crucial for ensuring equitable progress towards HCV elimination. This study aimed to quantify differences in testing, treatment, and current HCV infection between men and women who inject drugs.

METHOD

ETHOS Engage is an observational cohort study of people who inject drugs attending drug treatment clinics and needle and syringe programs in Australia recruited from May 2018-September 2019 (wave 1) and November 2019-April 2021 (wave 2). Participants completed a questionnaire including self-reported HCV testing and treatment history and underwent point-of-care HCV RNA testing (Xpert® HCV Viral Load Fingerstick). Logistic regression was used to compare the factors associated with self-reported HCV testing and treatment and current HCV infection for men and women who inject drugs.

RESULTS

Among 2,395 participants enrolled in ETHOS Engage, 66% (n = 1,591) were men, 33% (n = 786) women, and <1% (n = 18) did not identify as a man or woman. HCV testing history and current infection were similar among men and women. Among men or women ever eligible for HCV treatment (ever chronic HCV) (n = 1,242), women were less likely to report a history of HCV treatment compared to men (227/352, 64% vs. 631/890, 71%; p = 0.03). Among women, those aged <45 were less likely to report HCV testing (aOR: 0.57, 95%CI: 0.36, 0.90), treatment (aOR: 0.47, 95%CI: 0.29, 0.77), and more likely to have HCV infection (aOR: 1.48, 95%CI: 1.00, 2.20) CONCLUSION: Among women, those of childbearing age (<45) were less likely to report testing and treatment and were more likely to have current HCV infection. Women <45 years old should be a priority population for HCV care. Services that interface with these women should be optimised to enhance HCV testing and treatment.

Hepatitis C virus cure from direct-acting antivirals and mortality: Are people with and without a history of injection drug use in the same boat? (ANRS CO22 Hepather cohort)

INTRODUCTION

The risk of mortality in people with a history of injection drug use (PHID) is high, as is the prevalence of hepatitis C virus (HCV) infection. Although direct-acting antivirals (DAA) are effective in this population in terms of sustained virological response, it is not known whether PHID benefit as much as people with no history of injection drug use from DAA-related HCV cure in terms of reduced all-cause mortality.

METHODS

Using Cox proportional hazards models based on the ANRS CO22 Hepather cohort data (n = 9735), we identified factors associated with all-cause mortality among HCV-infected people. We tested for interaction effects between drug injection status, HCV cure and other explanatory variables.

RESULTS

DAA-related HCV cure was associated with a 66% (adjusted hazard ratio [95% confidence interval]: 0.34 [0.29-0.39]) lower risk of all-cause mortality, irrespective of drug injection status. Detrimental effects of unhealthy alcohol use on mortality were identified in PHID only.

DISCUSSION AND CONCLUSIONS

DAA-related HCV cure led to comparable benefits in terms of reduced mortality in PHID and people with no history of injection drug use. Policies and strategies to enhance DAA uptake among PHID are needed to lower mortality in this population. Clinical trial registration details: ClinicalTrials.gov: NCT01953458.

All-cause mortality before and after DAA availability among people living with HIV and HCV: An international comparison between 2010 and 2019

BACKGROUND

Among people living with HIV and hepatitis C virus (HCV), people who inject drugs (PWID) have historically experienced higher mortality rates. Direct-acting antivirals (DAA), which have led to a 90 % HCV cure rate independently of HIV co-infection, have improved mortality rates. However, DAA era mortality trends among PWID with HIV/HCV remain unknown. Using data from the International Collaboration on Hepatitis C Elimination in HIV Cohorts (InCHEHC), we compared pre/post-DAA availability mortality changes in three groups: PWID, men who have sex with men (MSM), and all other participants.

METHODS

We included InCHEHC participants with HIV/HCV followed between 2010 and 2019 in Canada, France, the Netherlands, Spain, and Switzerland. All-cause mortality hazard was compared in the three groups, using Cox proportional hazards regression models adjusted for sex, age, advanced fibrosis/cirrhosis, and pre/post DAA availability.

RESULTS

Of the 11,029 participants, 76 % were men, 46 % were PWID, baseline median age was 46 years (interquartile range [IQR] = 40;51), and median CD4 T-cell count was 490 cells/mm3 (IQR = 327;689). Over the study period (median follow-up = 7.2 years (IQR = 3.7;10.0)), 6143 (56 %) participants received HCV treatment, 4880 (44 %) were cured, and 1322 participants died (mortality rate = 1.81/100 person-years (PY) [95 % confidence interval (CI)=1.72-1.91]). Overall, PWID had higher mortality rates than MSM (2.5/100 PY [95 % CI = 2.3-2.6] vs. 0.8/100 PY [95 % CI = 0.7-0.9], respectively). Unlike women with other transmission modes, those who injected drugs had a higher mortality hazard than men who did not inject drugs and men who were not MSM (adjusted Hazard-Ratio (aHR) [95 % CI] = 1.3[1.0-1.6]). Post-DAA availability, mortality decreased among MSM in the Netherlands, Spain, and Switzerland and increased among PWID in Canada (aHR [95 % CI] = 1.73 [1.15-2.61]).

CONCLUSION

Post-DAA availability, all-cause mortality did not decrease in PWID. Determinants of cause-specific deaths (drug-related, HIV-related, or HCV-related) need to be identified to explain persistently high mortality among PWID in the DAA era.

Impaired health-related quality of life in the HCV cure era: who is concerned? (ANRS CO22 HEPATHER French cohort)

PURPOSE

Hepatitis C virus (HCV) cure after treatment with direct-acting antivirals (DAAs) can improve health-related quality of life (HRQoL). However, specific groups with chronic HCV may still exhibit worse post-cure HRQoL because of persisting severe liver fibrosis or social vulnerability factors (e.g. unhealthy alcohol use, living in poverty). We assessed the effect of such factors on longitudinal measures of HRQoL in chronic HCV patients.

METHODS

ANRS CO22 HEPATHER is a prospective cohort of chronic HCV patients receiving DAAs, which included notably patients with social vulnerability factors, a population usually under-represented in clinical trials. Multivariable mixed-effects linear regression models helped identify factors associated with longitudinal measures of HRQoL (PROQOL-HCV scores).

RESULTS

At enrolment, 52.4% of the 2740 participants were men, median age was 56 years [interquartile range 50-64], and 21.5% had severe liver fibrosis (FIB-4 > 3.25). Twenty-eight per cent reported current or past unhealthy alcohol use [> 2(3) alcohol units per day for women (men)], and 28.1% were living in poverty (standard of living under 1015€/month per household consumption unit). At first PROQOL-HCV completion, 54.0% of patients were HCV-cured. After multivariable adjustment, people with current or past unhealthy alcohol use, individuals living in poverty, those with severe liver fibrosis, and women had worse HRQoL in the dimensions explored. Conversely, HCV cure was associated with better HRQoL.

CONCLUSIONS

Specific socially vulnerable groups of patients with chronic HCV infection still experience impaired HRQoL, independently of HCV cure. Patient-centred interventions, including social support and referral for comorbidities, should be prioritized for them. Trial registration with ClinicalTrials.gov NCT01953458.

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.

Hepatitis C treatment uptake among people who inject drugs in Oslo, Norway: A registry-based study

BACKGROUND

Improving HCV treatment uptake among people who inject drugs (PWID) is crucial to achieving the WHO elimination targets. The aims were to evaluate HCV treatment uptake and HCV RNA prevalence in a large cohort of PWID in Norway.

METHODS

Registry-based observational study where all users of the City of Oslo's low-threshold social and health services for PWID between 2010-2016 (n = 5330) were linked to HCV notifications (1990-2019) and dispensions of HCV treatment, opioid agonist treatment (OAT) and benzodiazepines (2004-2019). Cases were weighted to account for spontaneous HCV clearance. Treatment rates were calculated using person-time of observation, and factors associated with treatment uptake were analysed using logistic regression. HCV RNA prevalence was estimated among individuals alive by the end of 2019.

RESULTS

Among 2436 participants with chronic HCV infection (mean age 46.8 years, 30.7% female, 73.3% OAT), 1118 (45.9%) had received HCV treatment between 2010-2019 (88.7% DAA-based). Treatment rates increased from 1.4/100 PY (95% CI 1.1-1.8) in the pre-DAA period (2010-2013) to 3.5/100 PY (95% CI 3.0-4.0) in the early DAA period (2014-2016; fibrosis restrictions) and 18.4/100 PY (95% CI 17.2-19.7) in the late DAA period (2017-2019; no restrictions). Treatment rates for 2018 and 2019 exceeded a previously modelled elimination threshold of 50/1000 PWID. Treatment uptake was less likely among women (aOR 0.74; 95% CI 0.62-0.89) and those aged 40-49 years (aOR 0.74; 95% CI 0.56-0.97), and more likely among participants with current OAT (aOR 1.21; 95% CI 1.01-1.45). The estimated HCV RNA prevalence by the end of 2019 was 23.6% (95% CI 22.3-24.9).

CONCLUSION

Although HCV treatment uptake among PWID increased, strategies to improve treatment among women and individuals not engaged in OAT should be addressed.

HCV treatment initiation in the era of universal direct acting antiviral coverage - Improvements in access and persistent barriers

BACKGROUND

Barriers to HCV treatment initiation persisted after the introduction of direct-acting antivirals (DAAs) in Canada among people who inject drugs (PWID); whether DAA universal coverage lifted these barriers remain unknown. We assessed the evolution of HCV treatment initiation and associated factors among PWID in Montreal, Canada, comparing eras of IFN-based regimens (2011-2013), of DAA restricted access (2014-02/2018), and universal coverage (03/2018-03/2020).

METHODS

We included chronically HCV-infected participants followed in a community-based PWID cohort in Montreal, Canada between 2011 and 03/2020 and collected data at 3-month intervals. Time-updated Cox regressions were conducted to examine 9 variables of interest associated with treatment initiation overall and for each of the three eras.

RESULTS

Of 276 participants, 126 initiated treatment during follow-up. Yearly initiation increased from 3% in 2011 to 19% in 2016, and 54% in 2018. PWID aged >40 (vs. ≤40) were twice as likely to initiate treatment in 2014-02/2018 (HR: 2.02 95%CI: [1.24-3.28]) but not in other periods (2011-2013: 0.55 [0.25-1.22]; 03/2018-03/2020: 1.14 [0.59-2.22])). Odds of initiation were lower for men than women in all periods, with women three times more likely to be treated under universal coverage (0.30 [0.11-0.77] vs 2011-2013: 0.67 [0.25-1.78] and 2014-02/2018: 0.75 [0.42-1.35]). Recent incarceration was negatively associated with initiation throughout all periods (2011-2013: 0.57 [0.13-2.43]; 2014-03/2018: 0.39 [0.17-0.91]; 03/2018-03/2020: 0.25 [0.07-0.83]). Barriers associated with high injection frequency appear to have diminished since DAA introduction (2014-02/2018: 0.71 [0.42-1.20]; 03/2018-03/2020: 1.05 [0.52-2.11] vs. 2011-2013: 0.26 [0.08-0.88]). Contact with a primary care physician and engagement in opioid agonist therapy were positively associated with treatment initiation, though estimates were attenuated under universal coverage relative to previous eras.

CONCLUSION

Treatment initiation rates have increased since the introduction of universal DAA coverage, though barriers such as incarceration persist.

Adherence to opioid agonist therapy predicts uptake of direct-acting antivirals in people who use drugs: results from the French national healthcare database (the ANRS FANTASIO study)

Background

Opioid agonist therapy (OAT) is associated with reduced injection, reduced HCV transmission, and more opportunities to initiate hepatitis C virus (HCV) treatment in people who use drugs (PWUD). We aimed to study the extent to which adherence to OAT was predictive of increased uptake of direct-acting antivirals (DAA) in PWUD with chronic HCV infection.

Methods

Using the French national healthcare system database, we targeted PWUD (i.e. with a history of OAT) who had chronic HCV infection and were eligible for DAA during 2014–2016. Adherence to OAT was computed as a time-varying variable expressing the proportion of days covered by OAT receipt, over any six-month interval before DAA receipt. We used a Cox proportional hazards model to estimate the association between adherence to OAT and the rate of DAA uptake after adjustment for age, sex, alcohol use disorder, socioeconomic status, and liver disease severity.

Results

Among the 22,615 persons included in the ANRS FANTASIO study, 3438 (15.2%) initiated DAA during the study period. After multivariable adjustment, adherence to OAT was associated with a higher rate of DAA initiation. However, this association was not linear, and only individuals on OAT for 20% or more of the time in the previous six-month period had a higher rate of DAA initiation (adjusted hazard ratio [95% confidence interval]: 1.28 [1.18–1.38]). Other variables associated with DAA initiation were male sex, older age, cirrhosis or liver cancer, and higher socioeconomic status.

Conclusions

Adherence to OAT is a major predictor of DAA initiation in PWUD living with chronic HCV infection in France. Our results also suggest that even moderate adherence to OAT can facilitate DAA uptake. Adequate HCV training for OAT prescribers together with interventions to ensure adherence to OAT will help improve DAA initiation rates and reach HCV elimination goals.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12954-022-00702-9.

Treatment of hepatitis C virus infection in people with opioid use disorder: a real-world study of elbasvir/grazoprevir in a US Department of Veterans Affairs population

Background: Hepatitis C virus (HCV) infections in the United States have increased in recent years, with the most rapid rise among people who inject drugs (PWIDs). Historically, there have been concerns regarding treatment adherence among PWIDs with HCV infection, leading to undertreatment of this population and increased HCV transmission. Elbasvir (EBR)/grazoprevir (GZR) has demonstrated high rates of virologic cure (sustained virologic response [SVR]) in clinical trials enrolling PWIDs with HCV infection. Objective: To evaluate the real-world effectiveness of EBR/GZR in HCV genotype (GT) 1-infected patients with a diagnosis of opioid use disorder. Methods: A retrospective analysis of electronic medical records from the US Department of Veterans Affairs Corporate Data Warehouse. Adults with chronic HCV GT1 infection, ≥1 prescription for EBR/GZR, and ≥1 clinic visit were included. All patients had ≥1 ICD-9/10 code of opioid use disorder. SVR was the primary outcome. Results: 419 patients were included; 97.1% had a history of any illicit drug use and 40.8% were receiving medication for opioid use disorder (MOUD). SVR was achieved by 96.9% (406/419) of all patients, 97.0% (350/361) of those receiving EBR/GZR for 12 weeks, and 95.3% (163/171) of those receiving MOUD. SVR in patients receiving psychiatric medications ranged from 96.1% (221/230) in those taking antidepressant medications to 98.5% (128/130) in those taking mood stabilizers. Conclusion: In this real-world setting, high rates of virologic cure were achieved in patients with HCV GT1 infection on MOUD receiving EBR/GZR for 12 weeks, including patients with multiple comorbidities and high rate of psychiatric medication use.

Setting foot in private spaces: extending the hepatitis C cascade of care to automatic needle/syringe dispensing machines, a mixed methods study

Background

Global commitment to achieving hepatitis C virus (HCV) elimination has enhanced efforts in improving access to direct-acting antiviral (DAA) treatments for people who inject drugs (PWID). Scale-up of efforts to engage hard-to-reach groups of PWID in HCV testing and treatment is crucial to success. Automatic needle/syringe dispensing machines (ADMs) have been used internationally to distribute sterile injecting equipment. ADMs are a unique harm reduction service, affording maximum anonymity to service users. This paper explores the feasibility and acceptability of extending the HCV cascade of care to sites where ADMs are located.

Methods

The ADM users into Treatment (ADMiT) study was undertaken in a metropolitan region in Sydney, Australia. This mixed methods study involved analysis of closed-circuit television footage, ethnographic methods (fieldwork observation and in-depth interviews) and structured surveys. Researchers and peers conducted fieldwork and data collection over 10 weeks at one ADM site, including offering access to HCV testing and treatment.

Results

Findings from 10 weeks of fieldwork observations, 70 survey participants and 15 interviews highlighted that there is scope for engaging with this population at the time they use the ADM, and enhanced linkage to HCV testing and treatment may be warranted. Most survey participants reported prior HCV testing, 61% in the last 12 months and 38% had received HCV treatment. However, fieldwork revealed that most people observed using the ADM were not willing to engage with the researchers. Field work data and interviews suggested that extending the HCV cascade of care to ADMs may encroach on what is a private space for many PWID, utilized specifically to avoid engagement.

Discussion

Enhanced linkage to HCV testing and treatment for people who use ADMs may be warranted. However, data suggested that extending the HCV cascade of care to ADMs may encroach on what is a private space for many PWID, utilized specifically to avoid engagement. The current study raises important public health questions about the need to ensure interventions reflect the needs of affected communities, including their right to remain anonymous.

A gender lens is needed in hepatitis C elimination research

The World Health Organisation has established a goal of eliminating the hepatitis C virus (HCV) as a public health threat by 2030. Considerable effort is being directed towards research to support and enhance HCV treatment uptake among people who inject drugs, but there is a distinct lack of attention given to gender in this work. We argue that a gender lens is needed to make visible the limitations of current HCV elimination research, and support the development of innovative, inclusive approaches to HCV treatment. Partnerships between researchers and people who inject drugs are essential in this work, particularly in the development and evaluation of programs by and for women who inject drugs. Failure to acknowledge the gendered dimensions of HCV elimination risks entrenching gender disparities in access to treatment and cure.

Hepatitis C virus: A critical approach to who really needs treatment

Introduction of effective drugs in the treatment of hepatitis C virus (HCV) infection has prompted the World Health Organization to declare a global eradication target by 2030. Propositions have been made to screen the general population and treat all HCV carriers irrespective of the disease status. A year ago the new severe acute respiratory syndrome coronavirus 2 virus appeared causing a worldwide pandemic of coronavirus disease 2019 disease. Huge financial resources were redirected, and the pandemic became the first priority in every country. In this review, we examined the feasibility of the World Health Organization elimination program and the actual natural course of HCV infection. We also identified and analyzed certain comorbidity factors that may aggravate the progress of HCV and some marginalized subpopulations with characteristics favoring HCV dissemination. Alcohol consumption, HIV coinfection and the presence of components of metabolic syndrome including obesity, hyperuricemia and overt diabetes were comorbidities mostly responsible for increased liver-related morbidity and mortality of HCV. We also examined the significance of special subpopulations like people who inject drugs and males having sex with males. Finally, we proposed a different micro-elimination screening and treatment program that can be implemented in all countries irrespective of income. We suggest that screening and treatment of HCV carriers should be limited only in these particular groups.

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.

A hepatitis C elimination model in healthcare for the homeless organization: A novel reflexive laboratory algorithm and equity assessment

BACKGROUND

Reaching World Health Organization hepatitis C (HCV) elimination targets requires diagnosis and treatment of people who use drugs (PWUD) with direct acting antivirals (DAAs). PWUD experience challenges engaging in HCV treatment, including needing multiple provider and laboratory appointments. Women, minoritized racial communities, and homeless individuals are less likely to complete treatment.

METHODS

We implemented a streamlined opt-out HCV screening and linkage-to-care program in two healthcare for the homeless clinics and a medically supported withdrawal center. Front-line staff initiated a single-order reflex laboratory bundle combining screening, confirmation, and pre-treatment laboratory evaluation from a single blood draw. Multinomial logistic regression models identified characteristics influencing movement through each stage of the HCV treatment cascade. Multiple logistic regression models identified patient characteristics associated with HCV care cascade progression and Cox proportional hazards models assessed time to initiation of DAAs.

RESULTS

Of 11,035 clients engaged in services between May 2017 and March 2020, 3,607 (32.7%) were screened. Of those screened, 1,020 (28.3%) were HCV PCR positive. Of those with detectable RNA, 712 (69.8%) initiated treatment and 670 (94.1%) completed treatment. Of those initiating treatment, 407 (57.2%) achieved SVR12. There were eight treatment failures and six reinfections. In the unadjusted model, the bundle intervention was associated with increased care cascade progression, and in the survival analysis, decreased time to initiation; these differences were attenuated in the adjusted model. Women were less likely to complete treatment and SVR12 labs than men. Homelessness increased likelihood of screening and diagnosis but was negatively associated with completing SVR12 labs. Presence of opioid and stimulant use disorder diagnoses predicted increased care cascade progression.

CONCLUSIONS

The laboratory bundle and referral pathways improved treatment initiation, time to initiation, and movement across the cascade. Despite overall population improvements, women and homeless individuals experienced important gaps across the HCV care cascade.

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.

Age and gender-specific hepatitis C continuum of care and predictors of direct acting antiviral treatment among persons who inject drugs in Seattle, Washington

BACKGROUND

Direct acting antivirals (DAAs) have revolutionized management of hepatitis C virus (HCV), but treatment uptake remains low among persons who inject drugs (PWID). We report the continuum of care for HCV and describe predictors of treatment with DAAs among PWID in Seattle.

METHODS

We analyzed data from the 2018 Seattle area National HIV Behavioral Surveillance (NHBS) survey of PWID. Persons ≥18 years of age who injected drugs in the past year and completed the core NHBS survey, a local survey supplement, and rapid HCV antibody testing were included. Among those who screened HCV antibody positive, we calculated proportions and 95 % confidence intervals for self-reported steps along the HCV care continuum. Multivariable logistic regression was used to calculate the adjusted odds (AOR) of having received DAA therapy.

RESULTS

The sample included 533 PWID, 376 (71 %) of whom tested positive for antibodies to HCV. Among those who were HCV antibody positive, 94 % reported any prior HCV test, 81 % reported a prior confirmatory test, and 68 % reported a prior HCV diagnosis. Of those diagnosed, 26 % had undergone treatment and 18 % had been cured. In a multivariate model, being one year older (AOR 1.05 per year, 1.01-1.08) was predictive of DAA treatment, while homelessness (AOR 0.39, 0.19-0.80) and female gender (AOR 0.36, 0.16-0.78) were associated with a lower odds of DAA therapy.

CONCLUSIONS

Despite widespread HCV testing among PWID in Seattle, treatment uptake remains low in the DAA era. In particular, treatment of women, younger adults and persons living homeless is lagging behind.

Life after hepatitis C cure in HIV-infected people who inject drugs and men who have sex with men treated with direct-acting antivirals in France: Health perceptions and experiences from qualitative and quantitative findings (ANRS CO13 HEPAVIH)

There remains a substantial gap in our understandings of the life experiences of patients following HCV cure among HIV-HCV-co-infected people who inject drugs (PWID) and men who have sex with men (MSM), two key populations targeted for HCV elimination. We described the experiences and perspectives of HIV-positive PWID and MSM, HCV-cured following treatment with direct-acting antivirals (DAA). We used an exploratory sequential mixed approach using both qualitative data (semi-structured interviews with 27 PWID and 20 MSM) and quantitative data (self-administered questionnaires with 89 PWID) via the prospective ANRS CO13 HEPAVIH cohort. PWID reported improvements in physical health-related quality of life (HRQL) and self-reported symptoms following treatment, but no significant change in mental HRQL. During interviews, several MSM, more recently diagnosed with HCV, expressed less concern regarding HCV than HIV infection and interpreted improvements in their overall well-being after HCV cure to be more related to a closer connection with healthcare providers than with viral elimination. By contrast, PWID, particularly those previously exposed to interferon-based treatments, described major improvements in their physical HRQL. Both MSM and PWID reported improvements in cognitive or psychological wellbeing, and a majority of them reported some degree of concern over potential HCV reinfection. To conclude, though health benefits of HCV cure concern both groups, HIV-infected PWID and MSM may have different representations and experiences following DAA treatment, related to their history with HCV. They are thus likely to benefit from holistic, post-treatment follow-up care that is responsive to their evolving health and social contexts.

Hepatitis C treatment uptake among people who inject drugs in the oral direct-acting antiviral era

BACKGROUND

Increased uptake of hepatitis C virus (HCV) treatment among people who inject drugs (PWID) will be critical to achieve HCV elimination goals. There are limited data on HCV treatment uptake among PWID recruited from community-based settings in the HCV direct-acting antiviral (DAA) era.

METHODS

We analysed data from PWID with HCV newly recruited into the Baltimore, Maryland-based AIDS Linked to the IntraVenous Experience (ALIVE) cohort between 2015 and 2018. We characterized the HCV care continuum and evaluated factors associated with HCV treatment uptake.

RESULTS

Of the 418 PWID with HCV, the median age was 49 years and most (88%) reported recent injection drug use (IDU). Overall, 23% had ever been evaluated by a provider for HCV treatment, 17% ever initiated DAA treatment and 13% were cured of HCV infection. Treatment uptake approximately doubled between 2015 and 2018 (13% to 26%, P = .01). In multivariable analyses, HIV infection (adjusted Odds Ratio [aOR] 2.5 [95% Confidence Interval (CI) 1.3, 4.8]), current employment (aOR 4.1 [CI 1.2, 14.4]), having a primary care provider (aOR 4.3 [CI 1.2, 14.9) and longer duration of IDU (aOR 1.3 [CI 1.1, 1.6]) were positively associated with HCV treatment. PWID with a lower annual income (≤$5000) were less likely to have initiated HCV treatment (aOR 0.5 [CI 0.3, 0.98]).

CONCLUSIONS

Although HCV treatment uptake among PWID in this community-based setting in the DAA era remains suboptimal, it is encouraging that treatment uptake has increased in recent years. Innovative strategies are needed to reach all PWID infected with HCV.

An evaluation of knowledge and concerns in women of child-bearing potential living with chronic hepatitis C infection

Background: There is little research focused on women living with the hepatitis C virus (HCV). We evaluated the knowledge, opinions, and concerns of women living with HCV of child-bearing potential. We specifically focused on pregnancy-related and child rearing issues. Methods: Fifteen women aged 29 to 45 seen at The Ottawa Hospital Viral Hepatitis Program between July 2017 and June 2018 consented and completed a questionnaire. Eighty percent were born in Canada. The average duration of infection was 7.2 years. Results: The majority (67%–93%) of respondents reported health concerns, fear of stigma, and shame related to their HCV diagnoses. Most (80%) feared transmitting HCV to their partner. Women are more willing to seek a partner and/or have children if they are cured of HCV. HCV-specific knowledge—as it pertains to transmission risk and direct-acting antiviral (DAA) safety during pregnancy and child rearing—was suboptimal and did not correlate with education level. All participants expressed a high degree of desire to receive DAA therapy. Conclusions: Better strategies to increase HCV-specific knowledge in women of child-bearing potential are required. Efforts to increase screening and treatment access in this population are warranted.

Hepatitis C Elimination in People With HIV Is Contingent on Closing Gaps in the HIV Continuum

BACKGROUND

Bolstered by the high efficacy of hepatitis C virus (HCV) treatment, the World Health Organization has called for HCV elimination by 2030. People with HIV (PWH) have been identified as a population in which elimination should be prioritized.

METHODS

We examined progress in HCV elimination through the HCV care continuum among patients infected with HIV/HCV receiving HIV care at Johns Hopkins Hospital in Baltimore, Maryland, United States. Patients with HIV care visits in at least 2 consecutive years were followed through December 15, 2018, for referral to HCV care, treatment initiation, and cure.

RESULTS

Among 593 HIV/HCV-coinfected individuals, 547 (92%) were referred for HCV care, 517 (87%) were evaluated for HCV treatment, 457 (77%) were prescribed HCV treatment, 426 (72%) initiated treatment, and 370 (62%) achieved HCV cure. In multivariable analysis, advanced liver disease (hazard ratio [HR], 1.48; 95% confidence interval [CI], 1.17-1.88) remained significantly positively associated with HCV treatment initiation. Conversely, being insured by state Medicaid (HR, 0.75; 95% CI, 0.61-0.92), having an HIV RNA >400 copies/mL (HR, 0.29; 95% CI, 0.18-0.49), and having missed 1%-24% (HR, 0.72; 95% CI, 0.54-0.97), 25%-49% (HR, 0.66; 95% CI, 0.49-0.89), and ≥50% of HIV care visits (HR, 0.39; 95% CI, 0.25-0.60) were significantly negatively associated with HCV treatment initiation.

CONCLUSIONS

HCV infection can be eliminated in PWH. However, HCV elimination requires unrestricted access to HCV treatment and improved methods of retaining people in medical care.

Elimination of hepatitis C virus infection among people who use drugs: Ensuring equitable access to prevention, treatment, and care for all

There have been major strides towards the World Health Organization goal to eliminate hepatitis C virus (HCV) infection as a global public health threat. The availability of simple, well-tolerated direct-acting antiviral therapies for HCV infection that can achieve a cure in >95% of people has provided an important tool to help achieve the global elimination targets. Encouragingly, therapy is highly effective among people receiving opioid agonist therapy and people who have recently injected drugs. Moving forward, major challenges include ensuring that new infections are prevented from occurring and that people who are living with HCV are tested, linked to care, treated, receive appropriate follow-up, and have equitable access to care. This editorial highlights key themes and articles in a special issue focusing on the elimination of HCV among people who inject drugs. An overarching consideration flowing from this work is how to ensure equitable access to HCV treatment and care for all. This special issue maps the field in relation to: HCV prevention; the cascade of HCV care; strategies to enhance testing, linkage to care, and treatment uptake; and HCV treatment and reinfection. In addition, papers draw attention to the 'risk environments' and socio-ecological determinants of HCV acquisition, barriers to HCV care, the importance of messaging around the side-effects of new direct-acting antiviral therapies, the positive transformative potential of treatment and cure, and the key role of community-based drug user organizations in the HCV response. While this special issue highlights some successful efforts towards HCV elimination among people who inject drugs, it also highlights the relative lack of attention to settings in which resources enabling elimination are scarce, and where elimination hopes and potentials are less clear, such as in many low and middle income countries. Strengthening capacity in areas of the world where resources are more limited will be a critical step towards ensuring equity for all so that global HCV elimination among PWID can be achieved.