A minimal monitoring approach for the treatment of hepatitis C virus infection (ACTG A5360 [MINMON]): a phase 4, open-label, single-arm trial

Comparison of a hepatitis C core antigen assay to nucleic acid amplification testing for detection of hepatitis C viremia in a US population

The prevalence of hepatitis C virus (HCV) infection in the United States has increased over the past decade despite the development of effective direct-acting antiviral treatments. To meet the World Health Organization's (WHO) goal of eliminating HCV infection by 2030, transmission events must be reduced. Currently, infection screening relies on detection of HCV antibodies, with nucleic acid amplification testing (NAAT) used to confirm HCV viremia and monitor changes in viral load. However, the seroconversion window for detection of HCV antibodies is long, averaging 6 weeks, with delayed seroconversion common in co-infected and immunosuppressed populations. Testing for HCV core antigen, which is present approximately 5 weeks before HCV antibodies, holds promise for earlier detection of HCV infection. It may also hold promise as a cheaper, more accessible, and more rapid alternative to NAAT for infection confirmation. Here, we evaluated the agreement between a research-use HCV Core Antigen Assay and NAAT among US patients receiving clinically indicated NAAT. Among 412 specimens, the overall concordance was 97.1%, with a positive percent agreement of 95.5%. Discrepancies primarily occurred among patients with chronic HCV and low viral loads; 11/12 discrepancies showed viral loads <4,000 IU/mL. Among patients being screened for HCV infection (i.e., excluding those undergoing NAAT for serial monitoring of a previously diagnosed infection), the positive percent agreement was 97.0%. Among patients undergoing serial testing, changes in HCV Core Antigen Assay signal-to-cut-off values were generally correlated with changes in the viral load. Results suggest that the research-use HCV Core Antigen Assay studied here may reliably detect and/or confirm HCV infection.

IMPORTANCE

A research-use HCV Core Antigen Assay showed high concordance with nucleic acid amplification testing for the detection of current hepatitis C infection. The assay may enable more rapid and lower-cost detection and/or confirmation of hepatitis C infection.

Distribution and inflammatory potential of hepatitis C virus genotypes in the United States, 2011-2020

HCV is marked by genetic diversity that impacts disease progression and outcome. Using the NHANES data from 266 HCV-infected adults (2011-2020), this study infers that genotype 1a is the most prevalent (60.2%). Genotype 3 was associated with higher transaminase levels, though not statistically significant. These findings suggest a more aggressive phenotype for genotype 3. Despite pan-genotypic treatment guidelines, this underscores the importance of continued HCV genotype surveillance and consideration for genotype-specific treatment and monitoring strategies.

Cutting-edge pharmacotherapy for hepatitis C virus infection: a comprehensive review

INTRODUCTION

Pharmacotherapy against hepatitis C virus (HCV) infection has tremendously improved since the advent of interferon (IFN)-free direct-acting antivirals (DAAs). Additionally, fixed-dose pangenotypic DAAs, which are safe, potent, easy for use, and can cover a wide spectrum of patients, have been recommended by professional guidelines for DAA-naïve and DAA-experienced patients with HCV.

AREAS COVERED

We review the pharmacokinetics, pharmacodynamics, and potential drug-drug interactions (DDIs) of fixed-dose pangenotypic DAA regimens, including glecaprevir/pibrentasvir (GLE/PIB), sofosbuvir/velpatasvir (SOF/VEL), and sofosbuvir/velpatasvir/voxilaprevir (SOF/VEL/VOX). Additionally, we summarize the efficacy and safety of these regimens in clinical trials as well as real-world studies for treating different populations. Lastly, we discuss unmet medical needs in managing HCV in the era of fixed-dose pangenotypic DAAs.

EXPERT OPINION

Protease inhibitors (PIs), including GLE and VOX, are prone to have more frequent DDIs, compared to the non-structural (NS) 5A and 5B inhibitors. These regimens are generally well tolerated and can be applied to different populations, except for the contraindicated use of PI-containing DAA regimens in decompensated cirrhosis. Using the first-line GLE/PIB and SOF/VEL can eradicate HCV in more than 95% of DAA-naïve patients across different populations. The viral cure usually exceeds 95% when using the rescue SOF/VEL/VOX regimen for prior DAA failures.

Impact of a Pharmacist-Led HCV Treatment Program at a Federally Qualified Health Center

Pharmacists are key players who can help to eliminate the hepatitis C virus (HCV) epidemic in the United States. This pilot retrospective study evaluated the impact of a pharmacist-led HCV treatment program in a federally qualified health center (FQHC) primary care clinic setting. The primary outcome was to assess sustained virologic response (SVR) rates 12 weeks after patients were initiated and completed their oral direct acting antiviral (DAA) treatment regimens.

METHODS

This pilot retrospective study included historical analyses of patients who received DAA treatment in the pharmacist-led HCV treatment program in a FQHC clinic between 1 January 2019 and 31 January 2021. SVR was the primary outcome measure for treatment response.

RESULTS

Sixty-seven patients with HCV mono- and HIV co-infection were referred, and 59 patients were initiated on DAA regimens after treatment. Fifty of those who were started on DAA regimens completed their treatment, and 38 achieved SVR (modified intention to treat [mITT] SVR rate of 76%).

CONCLUSION

Our study's findings demonstrated SVR rates that were comparable with other pharmacist-directed HCV treatment services in the United States despite the impact of the COVID-19 pandemic. Our study included a higher proportion of individuals with HCV/HIV co-infection and of Hispanic ethnicity.

Test characteristics for combining non-invasive liver fibrosis staging modalities in individuals with Hepatitis C virus

Non-invasive methods have largely replaced biopsy to identify advanced fibrosis in hepatitis C virus (HCV). Guidelines vary regarding testing strategy to balance accuracy, costs and loss to follow-up. Although individual test characteristics are well-described, data comparing the accuracy of using two tests together are limited. We calculated combined test characteristics to determine the utility of combined strategies. This study synthesizes empirical data from fibrosis staging trials and the literature to estimate test characteristics for Fibrosis-4 (FIB4), APRI or a commercial serum panel (FibroSure®), followed by transient elastography (TE) or FibroSure®. We simulated two testing strategies: (1) second test only for those with intermediate first test results (staged approach), and (2) second test for all. We summarized empiric data with multinomial distributions and used this to estimate test characteristics of each strategy on a simulated population of 10,000 individuals with 4.2% cirrhosis prevalence. Negative predictive value (NPV) for cirrhosis from a single test ranged from 98.2% (95% CB 97.6-98.8%) for FIB-4 to 99.4% (95% CB 99.0-99.8%) for TE. Using a staged approach with TE second, sensitivity for cirrhosis rose to 93.3-96.9%, NPV to 99.7-99.8%, while PPV dropped to <32%. Using TE as a second test for all minimally changed estimated test characteristics compared with the staged approach. Combining two non-invasive fibrosis tests barely improves NPV and decreases or does not change PPV compared with a single test, challenging the utility of serial testing modalities. These calculated combined test characteristics can inform best methods to identify advanced fibrosis in various populations.

Leveraging opportunities for treatment/user simplicity (LOTUS): Navigating the current treatment landscape for achieving hepatitis C virus elimination among persons who inject drugs

All-oral, direct-acting antivirals can cure hepatitis C virus (HCV) in almost all infected individuals; yet, many individuals with chronic HCV are not treated, and the incidence of acute HCV is increasing in some countries, including the United States. Strains on healthcare resources during the COVID-19 pandemic negatively impacted the progress toward the World Health Organization goal to eliminate HCV by 2030, especially among persons who inject drugs (PWID). Here, we present a holistic conceptual framework termed LOTUS (Leveraging Opportunities for Treatment/User Simplicity), designed to integrate the current HCV practice landscape and invigorate HCV treatment programs in the setting of endemic COVID-19: (A) treatment as prevention (especially among PWID), (B) recognition that HCV cure may be achieved with variable adherence with evidence supporting some forgiveness for missed doses, (C) treatment of all persons with active HCV infection (viremic), regardless of acuity, (D) minimal monitoring (MinMon) during treatment, and (E) rapid test and treat (TnT). The objective of this article is to review the current literature supporting each LOTUS petal; identify remaining gaps in knowledge or data; define the remaining barriers facing healthcare providers; and review evidence-based strategies for overcoming key barriers.

Hepatitis C virus eradication in people living with human immunodeficiency virus: Where are we now?

Hepatitis C virus (HCV)/human immunodeficiency virus (HIV) co-infection still involves 2.3 million patients worldwide of the estimated 37.7 million living with HIV, according to World Health Organization. People living with HIV (PLWH) are six times greater affected by HCV, compared to HIV negative ones; the greater prevalence is encountered among people who inject drugs and men who have sex with men: the risk of HCV transmission through sexual contact in this setting can be increased by HIV infection. These patients experience a high rate of chronic hepatitis, which if left untreated progresses to end-stage liver disease and hepatocellular carcinoma (HCC) HIV infection increases the risk of mother to child vertical transmission of HCV. No vaccination against both infections is still available. There is an interplay between HIV and HCV infections. Treatment of HCV is nowadays based on direct acting antivirals (DAAs), HCV treatment plays a key role in limiting the progression of liver disease and reducing the risk of HCC development in mono- and coinfected individuals, especially when used at an early stage of fibrosis, reducing liver disease mortality and morbidity. Since the sustained virological response at week 12 rates were observed in PLWH after HCV eradication, the AASLD has revised its simplified HCV treatment algorithm to also include individuals living with HIV. HCV eradication can determine dyslipidemia, since HCV promotes changes in serum lipid profiles and may influence lipid metabolism. In addition to these apparent detrimental effects on the lipid profile, the efficacy of DAA in HCV/HIV patients needs to be considered in light of its effects on glucose metabolism mediated by improvements in liver function. The aim of the present editorial is to describe the advancement in HCV treatment among PLWH.

The Urgent Need to Implement Point-of-Care RNA Testing for Hepatitis C Virus to Support Elimination

Hepatitis C virus (HCV) elimination is an important global public health goal. However, the United States is not on track to meet the World Health Organization's 2030 targets for HCV elimination. Recently, the White House proposed an HCV elimination plan that includes point-of-care (POC) HCV RNA testing, which is currently in use in many countries but is not approved in the United States. POC HCV RNA testing is crucial for implementing community-based testing and for enabling test-and-treat programs, assessing cure, and monitoring for reinfection. Here, we review the status of POC HCV RNA testing in the United States, discuss factors that are needed for successful implementation, and issue specific public health and policy recommendations that would allow for the use of POC HCV RNA testing to support HCV elimination.

United States Provider Experiences with Telemedicine for Hepatitis C Treatment: A Nationwide Survey

Background

Hepatitis C virus (HCV) elimination requires treatment access expansion, especially for underserved populations. Telehealth has the potential to improve HCV treatment access, although data are limited on its incorporation into standard clinical practice.

Methods

We conducted a cross-sectional, e-mail survey of 598 US HCV treatment providers who had valid email addresses and 1) were located in urban areas and had written ≥20 prescriptions for HCV treatment to US Medicare beneficiaries in 2019-20 or 2) were located in non-urban areas and wrote any HCV prescriptions in 2019-20. Through email, we notified providers of a self-administered electronic 28-item survey of clinical strategies and attitudes about telemedicine for HCV.

Results

We received 86 responses (14% response rate), of which 75 used telemedicine for HCV in 2022. Of those 75, 24% were gastroenterologists/hepatologists, 23% general medicine, 17% infectious diseases, and 32% non-physicians. Most (82%) referred patients to commercial laboratories, and 85% had medications delivered directly to patients. Overwhelmingly, respondents (92%) felt that telehealth increases healthcare access, and 76% reported that it promotes or is neutral for treatment completion. Factors believed to be "extremely" or "very" important for telehealth use included patient access to technology (86%); patients' internet access (74%); laboratory access (76%); reimbursement for video visits (74%) and audio-only visits (66%). Non-physician licensing and liability statutes were rated "extremely" or "very" important by 43% and 44%, respectively.

Conclusions

Providers felt that telehealth increases HCV treatment access. Major limitations were technological requirements, reimbursement, and access to ancillary services. These findings support the importance of digital equity and literacy to achieve HCV elimination goals.

Tools Needed to Support Same-Day Diagnosis and Treatment of Current Hepatitis C Virus Infection

The current multiday diagnosis and treatment paradigm for hepatitis C virus (HCV) infection results in far fewer patients receiving treatment with direct-acting antiviral agents than those with diagnosed HCV infection. To achieve HCV elimination, a paradigm shift in access to HCV treatment is needed from multiday testing and treatment algorithms to same-day diagnosis and treatment. This shift will require new tools, such as point-of-care (POC) antigen tests or nucleic acid tests for HCV and hepatitis B virus (HBV) and nucleic acid tests for human immunodeficiency virus (HIV) that do not require venous blood. This shift will also require better use of existing resources, including expanded access to HCV treatment and available POC tests, novel monitoring approaches, and removal of barriers to approval. A same-day diagnosis and treatment paradigm will substantially contribute to HCV elimination by improving HCV treatment rates and expanding access to treatment in settings where patients have brief encounters with healthcare.

Feasibility, safety, efficacy and potential scaling-up of sofosbuvir-based HCV treatment in Central and West Africa: (TAC ANRS 12311 trial)

Access to Hepatis C treatment in Sub-Saharan Africa is a clinical, public health and ethical concern. The multi-country open-label trial TAC ANRS 12311 allowed assessing the feasibility, safety, efficacy of a specific care model of HCV treatment and retreatment in patients with hepatitis C in Sub Saharan Africa. Between November 2015 and March 2017, with follow-up until mid 2019, treatment-naïve patients with HCV without decompensated cirrhosis or liver cancer were recruited to receive 12 week-treatment with either sofosbuvir + ribavirin (HCV genotype 2) or sofosbuvir + ledipasvir (genotype 1 or 4) and retreatment with sofosbuvir + velpatasvir + voxilaprevir in case of virological failure. The primary outcome was sustained virological response at 12 weeks after end of treatment (SVR12). Secondary outcomes included treatment adherence, safety and SVR12 in patients who were retreated due to non-response to first-line treatment. The model of care relied on both viral load assessment and educational sessions to increase patient awareness, adherence and health literacy. The study recruited 120 participants, 36 HIV-co-infected, and 14 cirrhotic. Only one patient discontinued treatment because of return to home country. Neither death nor severe adverse event occurred. SVR12 was reached in 107 patients (89%): (90%) in genotype 1 or 2, and 88% in GT-4. All retreated patients (n = 13) reached SVR12. HCV treatment is highly acceptable, safe and effective under this model of care. Implementation research is now needed to scale up point-of-care HCV testing and SVR assessment, along with community involvement in patient education, to achieve HCV elimination in Sub-Saharan Africa.

Adherence in Hepatitis C Virus Treatment: What We Know

Although therapy with direct-acting antiviral (DAA) agents achieves high hepatitis C virus (HCV) cure rates and is forgiving of missed doses, certain patient populations, such as people who inject drugs (PWID), are often denied therapy because of a perceived high risk of nonadherence. However, a relationship between adherence to DAAs for various patient populations and efficacy has not been well defined. The lack of a standardized method for evaluating adherence complicates making comparisons between studies, making it difficult to develop and implement novel measures that may improve adherent behavior. Traditional methods for assessing adherence may overestimate medication adherence, while newer, technology-based methods may assist with accurately assessing and maintaining patient adherence to therapy. Data demonstrate that special populations of patients with HCV, such as PWID, can be successfully treated, with relatively high rates of sustained virologic response (SVR) despite less-than-optimal adherence. While rates of adherence, and subsequently SVR, can be improved, antiviral therapy should not be withheld because of fear of nonadherence. This article addresses medication adherence and forgiveness of DAA regimens, such as sofosbuvir/velpatasvir and glecaprevir/pibrentasvir, in different patient populations with HCV. Considerations in evaluating adherence in HCV therapy and available methods for assessing adherence are detailed.

Preferences and feasibility of long-acting technologies for treatment of hepatitis C virus in low- and middle-income countries: A survey of providers and policymakers

Long-acting technologies (LATs) for hepatitis C virus (HCV) are under development as a strategy to improve linkage to care, treatment adherence and outcomes. We conducted a survey of HCV treatment prescribers and HCV policymakers in low- and middle-income countries (LMICs) regarding acceptability and feasibility of HCV LATs. We included one-time intramuscular injection, subdermal implant and transdermal patch as potential LAT options. We surveyed participants regarding optimal health system and patient characteristics, concerns, potential barriers, overall feasibility and preferences for HCV LAT as compared to daily oral medication. Overall, 122 providers and 50 policymakers from 42 LMICs completed the survey. Among providers, 93% (113/122) expressed willingness to prescribe LAT and 72% (88/120) of providers preferred LAT if provided at comparable efficacy, safety and cost as current oral treatments. Of providers preferring HCV LAT to daily oral medication, 67% (59/88) preferred injection, 24% (21/88) preferred patch and 9% (8/88) preferred implant. Only 20% (24/122) would prescribe LAT if it were more costly than oral treatment. In regression analysis, no provider characteristics were associated with preference for LAT over oral treatment. Policymakers reported high likelihood that LAT would be included in treatment guidelines (42/50; 84%) and national drug formularies (39/50; 78%) if efficacy, safety and cost were similar to oral treatment. HCV LATs could advance progress to HCV elimination in LMICs by diversifying treatment options to improve treatment coverage and outcomes. Provider preferences from LMICs are a critical consideration in the development of HCV LATs to ensure its early and equitable availability in LMICs.

Postpartum Treatment for Chronic Hepatitis C Virus Among People With Opioid Use Disorder: A Prospective Pilot Clinical Trial

OBJECTIVE

The objective of this study was to evaluate the feasibility and acceptability of postpartum hepatitis C virus (HCV) treatment integrated within a substance use treatment program for pregnant and postpartum people with opioid use disorder (OUD).

METHODS

We conducted a prospective pilot clinical trial of sofosbuvir/velpatasvir (SOF/VEL) treatment among postpartum people with OUD and HCV. Feasibility outcomes included rates of HCV treatment utilization and completion, medication adherence, and sustained virologic response 12 weeks after treatment completion (SVR12). Acceptability was measured through self-reported adverse effects and medication adherence.

RESULTS

From January 2018 to August 2021, 164 pregnant people received care for OUD at the study site. Among those, 64 (39.0%) were HCV antibody positive and 45 (27.4%) had active HCV infection. Among 45 eligible patients, 32 (71.1%) enrolled and 21 (46.7%) initiated HCV treatment. Of 21 participants who initiated treatment, 16 (76.2%) completed the SOF/VEL treatment, and 11 (52.4%) completed the SVR12. All participants who completed treatment were cured. Common reasons for dropout during the HCV clinical care cascade were OUD treatment discontinuation, illicit substance use recurrence, and lost to follow-up. Participants reported high satisfaction with HCV treatment, including minimal adverse effects, and no HCV treatment concerns.

CONCLUSIONS

Nearly half of pregnant people with HCV initiated postpartum treatment within an integrated care model of HCV treatment within a substance use treatment program. Postpartum SOF/VEL was efficacious, tolerable, and acceptable. Despite this, postpartum HCV treatment among people with OUD remains challenging, and many barriers remain.

GRAND PLAN: Safety and Efficacy of Glecaprevir/Pibrentasvir for the Treatment of Hepatitis C Virus Infection Among People Initially Disengaged From Health Care Who Use Drugs-A Systematic Multidisciplinary Approach

Background

GRAND PLAN is a prospective, open-label, phase 4 study. Based at a single center and with a single arm, GRAND PLAN evaluated the safety and efficacy of an 8-week course of glecaprevir/pibrentasvir (G/P) among active drug users with hepatitis C virus (HCV) infection in a population enriched for factors that may reduce treatment uptake and success, such as disengagement from health care and unstable housing.

Methods

Participants were ≥19 years old and actively using drugs and were confirmed viremic, noncirrhotic, and HCV treatment naive. All participants provided informed consent before any study procedures. They received G/P for 8 weeks within a multidisciplinary model of care, with daily, weekly, or monthly dispensing of medications to optimize adherence.

Results

We identified 117 eligible patients with a median age of 46 years (range, 22-75): 27% were female, 21.4% were Indigenous, 48.7% were unstably housed, and 95.7% were active drug users (94.9% fentanyl). One patient did not start treatment, and 4 underwent <1 week of treatment, leaving 112 completed treatments with 94.6% picking up medications weekly. HCV RNA was undetectable at the end of treatment in all 112 patients. One died of unknown causes shortly after treatment. A cure was demonstrated in 108 of 111 (97.3%) cases at the SVR12 time point (sustained virologic response at ≥12 weeks); the other 3 experienced virologic relapse. Considering the entire cohort, the intent-to-treat success rate was 92.3% (108/117). HCV reinfection was documented at SVR24 in 5 cases, 2 of which were successfully retreated.

Conclusions

GRAND PLAN demonstrates that administration of an 8-week course of G/P to inner-city residents with HCV infection leads to a cure >95%. With a short course of treatment, G/P is an attractive option for this population in helping us achieve the World Health Organization's HCV objectives by 2030.

Excellent hepatitis C virus cure rates despite increasing complexity of people who use drugs: Integrated-Test-stage Treat study final outcomes

Achieving hepatitic C virus (HCV) elimination requires linking people who use drugs (PWUD) into care. We report final direct-acting antivirals (DAAs)-based outcomes from the Integrated-Test-stage -Treat (ITTREAT) study. Project ITTREAT (2013-2021), based at an addiction centre, was a 'one-stop' service with innovative linkage to care strategies. Primary outcome was sustained virological response (SVR12) (intention to treat ITT) including whether individuals were recruited in first (period 1) versus last four (period 2 included the COVID-19 pandemic) years of the study. Number recruited were n = 765, mean age 40.9 ± 10.1 years, 78% males, history of current/past injecting drug use (IDU) and alcohol use being 77% and 90%, respectively. Prevalence of a positive HCV PCR was 84% with 19% having cirrhosis. Comparing those recruited in period 2 versus period 1, there was increasing prevalence of IDU, 90% versus 72% (p < .001); homelessness, 67% versus 50% (p < .001); psychiatric diagnosis, 84% versus 50% (p < .001); overdose history 71% versus 31% (p < .001), receiving opioid agonist treatment (OAT) 75% versus 52% (p < .001) and comorbidity 44% versus 25% (p < .001). Of those treated with DAAs (n = 272), ITT SVR rates were 86% (95% CI: 81%-90%), being similar in period 2 versus period 1. Predictors of non-SVR were receiving OAT (OR 0.33, 95% CI: 0.12-0.87, p = .025) and ≥80% adherence (OR 0.01, 95% CI: 0.003-0.041, p < .001). Reinfection rates period 2 versus period 1 (per 100 person-years) were 1.84 versus 1.70, respectively. In the treated cohort, mortality was 15%, being mostly drug-related. Despite increasing complexity of PWUD, high SVR12 rates are achievable with use of OAT and good adherence.

Screening for hepatitis C as part of an opioid stewardship quality improvement initiative: Identifying infected patients and analyzing linkage to care

Screening patients with opioid use disorder (OUD) for HCV can potentially decrease morbidity and mortality if HCV-infected individuals are linked to care. We describe a quality improvement initiative focused on patients with OUD, incorporating an electronic health record decision-support tool for HCV screening across multiple health care venues, and examining the linkage to HCV care. Of 5829 patients with OUD, 4631 were tested for HCV (79.4%), (compared to a baseline of 8%) and 1614 (27.7%) tested positive. Two hundred and thirty patients had died at the study onset. Patients tested in the acute care and emergency department settings were more likely to test positive than those in the ambulatory setting (OR = 2.21 and 2.49, p < 0.001). Before patient outreach, 279 (18.2%) HCV-positive patients were linked to care. After patient outreach, 326 (23.0%) total patients were linked to care. Secondary end points included mortality and the number of patients who were HCV-positive who achieved a cure. The mortality rate in patients who were HCV-positive (12.2%) was higher than that in patients who were HCV-negative (7.4%) (OR = 1.72, p < 0.001) or untested patients (6.2%) (OR = 2.10, p<0.001). Of the 326 with successful linkage to care, 113 (34.7%) had a documented cure. An additional 55 (16.9%) patients had a possible cure, defined as direct acting antiviral ordered but no follow-up documented, known treatment in the absence of documented sustained viral response lab draw, or documentation of cure noted in outside medical records but unavailable laboratory results. A strategy utilizing electronic health record decision-support tools for testing patients with OUD for HCV was highly effective; however, linking patients with HCV to care was less successful.

Inpatient Hepatitis C Treatment Coordination and Initiation for Patients Who Inject Drugs

BACKGROUND

With hepatitis C (HCV) incidence rising due to injection drug use, people who inject drugs (PWID) are a priority population for direct-acting antivirals (DAA). However, significant barriers exist. At our institution, hospitalized PWID were screened for HCV but not effectively linked to care.

AIM

To improve retention in HCV care among hospitalized PWID.

SETTING

Quaternary academic center in the Southeast US from August 2021 through August 2022.

PARTICIPANTS

Hospitalized PWID with HCV.

PROGRAM DESCRIPTION

E-consultation-prompted care coordination and HCV treatment with outpatient telehealth.

PROGRAM EVALUATION

Care cascades were constructed to assess retention and HCV treatment, with the primary outcome defined as DAA completion or sustained virologic response after week 4. Of 28 patients, 11 started DAAs inpatient, 8 initiated outpatient, and 9 were lost to follow-up or transferred care. Overall, 82% were linked to care and 52% completed treatment. For inpatient initiators, 73% achieved the outcome. Of non-inpatient initiators, 71% were linked to care, 53% started treatment, and 36% achieved the outcome.

DISCUSSION

Inpatient HCV treatment coordination, including DAA initiation, and telehealth follow-up, was feasible and highly effective for hospitalized PWID. Future steps should address barriers to inpatient DAA treatment and expand this model to other similar patient populations.

Cascade of Care for Hepatitis C Virus Infection Among Young Adults Who Inject Drugs in a Rural County in New Mexico

OBJECTIVE

Treatment for hepatitis C virus (HCV) infection is highly effective; however, people who inject drugs (PWID), the population most affected by HCV, may encounter barriers to treatment. We examined the cascade of care for HCV infection among young adult PWID in northern New Mexico, to help identify gaps and opportunities for HCV treatment intervention.

METHODS

Young adults (aged 18-29 y) who self-reported injection drug use in the past 90 days were tested for HCV antibodies (anti-HCV) and HCV RNA. We asked participants with detectable RNA to participate in an HCV education session, prior to a referral to a local health care provider for treatment follow-up, and to return for follow-up HCV testing quarterly for 1 year. We measured the cascade of care milestones ranging from the start of screening to achievement of sustained virologic response (SVR).

RESULTS

Among 238 participants, the median age was 26 years and 133 (55.9%) were men. Most (90.3%) identified as Hispanic. Of 109 RNA-positive participants included in the cascade of care assessment, 84 (77.1%) received their results, 82 (75.2%) participated in the HCV education session, 61 (56.0%) were linked to care through a medical appointment, 27 (24.8%) attended the HCV treatment appointment, 13 (11.9%) attended their follow-up appointment, 6 (5.5%) initiated treatment, 3 (2.8%) completed treatment, and 1 (0.9%) achieved SVR.

CONCLUSIONS

We observed a steeply declining level of engagement at each milestone step of the cascade of care after detection of HCV infection, resulting in a suboptimal level of HCV treatment and cure. Programs that can streamline testing and expand access to treatment from trusted health care providers are needed to improve the engagement of PWID in HCV treatment.

A Synopsis of Hepatitis C Virus Treatments and Future Perspectives

Hepatitis C virus (HCV) infection is a worldwide public health problem. Chronic infection with HCV can lead to liver cirrhosis or cancer. Although some immune-competent individuals can clear the virus, others develop chronic HCV disease due to viral mutations or an impaired immune response. IFNs type I and III and the signal transduction induced by them are essential for a proper antiviral effect. Research on the viral cycle and immune escape mechanisms has formed the basis of therapeutic strategies to achieve a sustained virological response (SVR). The first therapies were based on IFNα; then, IFNα plus ribavirin (IFN-RBV); and then, pegylated-IFNα-RBV (PEGIFNα-RIV) to improve cytokine pharmacokinetics. However, the maximum SVR was 60%, and several significant side effects were observed, decreasing patients' treatment adherence. The development of direct-acting antivirals (DAAs) significantly enhanced the SVR (>90%), and the compounds were able to inhibit HCV replication without significant side effects, even in paediatric populations. The management of coinfected HBV-HCV and HCV-HIV patients has also improved based on DAA and PEG-IFNα-RBV (HBV-HCV). CD4 cells are crucial for an effective antiviral response. The IFNλ3, IL28B, TNF-α, IL-10, TLR-3, and TLR-9 gene polymorphisms are involved in viral clearance, therapeutic responses, and hepatic pathologies. Future research should focus on searching for strategies to circumvent resistance-associated substitution (RAS) to DAAs, develop new therapeutic schemes for different medical conditions, including organ transplant, and develop vaccines for long-lasting cellular and humoral responses with cross-protection against different HCV genotypes. The goal is to minimise the probability of HCV infection, HCV chronicity and hepatic carcinoma.

Hepatitis C

Hepatitis C virus (HCV) is a hepatotropic RNA virus that can cause acute and chronic hepatitis, with progressive liver damage resulting in cirrhosis, decompensated liver disease, and hepatocellular carcinoma. In 2016, WHO called for the elimination of HCV infection as a public health threat by 2030. Despite some progress, an estimated 57 million people were living with HCV infection in 2020, and 300 000 HCV-related deaths occur per year. The development of direct-acting antiviral therapy has revolutionised clinical care and generated impetus for elimination, but simplified and broadened HCV screening, enhanced linkage to care, and higher coverage of treatment and primary prevention strategies are urgently required.

Creating a Longitudinal HCV Care Cascade for Persons With HIV/HCV Coinfection in Selected HIV Clinics Using Data to Care Methods

Highly effective direct-acting antiviral (DAA) treatments for hepatitis C have led to strategic goals promoting hepatitis C virus (HCV) cure particularly in focus populations including persons with HIV/HCV coinfection. Implementing treatment more broadly requires both clinic-level and public health approaches such as those inherent in Data to Care (D2C) originally developed to improve the treatment cascade for persons with HIV (PWH). We used D2C methods to characterize and improve HCV treatment for persons with HIV/HCV coinfection among 11 HIV clinics in Connecticut cities with high PWH prevalence. Providers who were local champions in HCV treatment were recruited to participate along with clinic data staff and were key to quality improvement via practice transformation. We developed a methodology whereby clinic-generated lists of PWH receiving care from 2009 to 2018 were matched by CT Department of Public Health (DPH) against the state-wide HCV surveillance system. The resultant coinfection list was reviewed by clinical staff who designated HCV treatment status, enabling creation of individual clinic-level HCV treatment cascades. Data from DPH, especially current residency and deaths, enabled better characterization and allowed for refinement of longitudinal cascades. There were 1,496 patients with HIV/HCV coinfection. Sustained virologic response (SVR) rates varied by clinic (range, 44%-100%) with an aggregate SVR rate of 71% in September 2020. SVR rates improved during the project through a combination of increased treatment initiation/completion as well as data clean-up including serial updates of patient treatment status. Lack of treatment initiation was associated with being female (odds ratio [OR] = 2.18) and not having HIV viral suppression (OR = 3.24).

Challenges to Achieving HCV Micro-Elimination in People With HIV in the United States: Provider Perspectives and the Role of Implicit Bias

The prevalence of HIV/HCV (hepatitis C virus) co-infection is high particularly in persons who inject drugs (PWID) and is increasing because of the evolving opioid epidemic in the United States. The introduction of effective antiviral medications for HCV has raised the strategic goal of HCV micro-elimination, and efforts to understand the barriers to treatment are critical. In this study, we explored the provider perspective of factors that inhibit HCV micro-elimination efforts in people with HIV (PWH), including the role of implicit bias and related stigma in providers' health care decision making. We used the mixed-methods approach of nominal group technique (NGT) with 14 participants from 11 different clinics engaged in two virtual focus group sessions (n = 5 and n = 9). Responses from the NGTs were rank ordered during the sessions to identify providers' perspectives of major barriers and facilitators, then identified possible implicit bias after the NGTs concluded. There were 12 responses given for micro-elimination barriers with the three most prioritized being housing instability, medication nonadherence concerns, and inability to motivate patients. Of these, eight were categorized as potential implicit biases. Among the 14 responses given for facilitators of treatment, the three major solutions included distributive models of care, improved provider knowledge, and increased patient engagement. Although the solutions offered were insightful, there was consensus that the individual lives of patients were the root cause of most barriers to care. We recommend further research on behavioral design interventions that promote patients' involvement in decision making and focus on patients' eligibility criteria for HCV treatment as opposed to providers' perceived barriers to treatment.

Characterizing Persons With HIV/HCV Coinfection Who Remain Untreated for Hepatitis C at Four HIV Clinics in Connecticut (CT): Role of Multiple Overlapping Barriers at the Individual and Clinic System Levels

Introduction. Direct-acting antiviral medications have made hepatitis C virus (HCV) cure possible for >95% of persons with chronic HCV infection, including those coinfected with HIV. Achieving strategic HCV elimination targets requires an understanding of system, provider, and patient-level barriers to treatment. We explored such barriers among persons with HIV/HCV coinfection who remained untreated for HCV. Methods. Among four primary care HIV clinics in CT with high rates of HCV cure, 25 patients with HIV/HCV coinfection were eligible (no HCV treatment as of March 31, 2021). We conducted retrospective chart reviews of demographics, clinical practice patterns, patient-specific issues such as housing, transportation, food security, and presence of mental health and substance use problems. Results. Among untreated patients, 13 (51%) were female; 17 (68%) were Black; median age was 62 years old. The majority (84%) had injecting drug use (IDU) as HIV transmission risk factor; 14 (56%) were prescribed medication-assisted treatment. Median time since HIV and HCV diagnosis was 25 and 19 years, respectively. Clinic-level barriers were noted in 19 (76%) and included lack of evaluation, treatment not recommended or implemented. Concomitant structural barriers included unstable housing for 11 (44%) and lack of transportation for eight (32%). Most patients had history of illicit substance use (84%) and mental health issues (68%). Many (76%) had multiple potential barriers. Conclusions. Multiple overlapping barriers spanning clinic and patient level domains including social determinants of health were the norm in persons with long-standing HIV/HCV coinfection who have not received HCV treatment. Interventions will require innovative, multi-disciplinary and personalized approaches.

Stages of care for patients with chronic hepatitis C at a hospital in southern Brazil

BACKGROUND

Hepatitis C virus (HCV) is defined as a public health problem by the World Health Organization (WHO) and since then has defined targets through the HCV elimination. The HCV cascade of care highlights the progress towards these goals and essential interventions that need to be delivered along this continuum care.

AIM

To document the treatment cascade for patients with HCV infection at the Hospital Nossa Senhora da Conceição (HNSC), defining the percentage of antibody-positive patients who collected molecular biology tests (polymerase chain reaction), attended outpatient clinic assistance, underwent treatment, and achieved a virologic cure termed sustained virologic response (SVR).

METHODS

With the retrospective cohort design, patients diagnosed with HCV infection in the period between January 1, 2015 and December 31, 2020 were included. Data from HCV notification forms, electronic medical records, Computerized Laboratory Environment Manager System, and Medicine Administration System (evaluation of special medications) were collected in 2022 and all information up to that period was considered. The data were analyzed with IBM SPSS version 25, and Poisson regression with robust simple variance was performed for analysis of variables in relation to each step of the cascade. Variables with P < 0.20 were included in the multivariate analysis with P < 0.05 considered significant. Pearson's chi-square test was applied to compare the groups of patients who persisted in follow-up at the HNSC and who underwent follow-up at other locations.

RESULTS

Results were lower than expected by the WHO with only 49% of candidates receiving HCV treatment and only 29% achieving SVR, despite the 98% response rate to direct acting antivirals documented by follow-up examination. The city of origin and the place of follow-up were the variables associated with SVR and all other endpoints. When comparing the cascade of patients who remained assisted by the HNSC vs external patients, we observed superior data for HNSC patients in the SVR. Patients from the countryside and metropolitan region were mostly assisted at the HNSC and the specialized and continuous care provided at the HNSC was associated with superior results, although the outcomes remain far from the goals set by the WHO.

CONCLUSION

With the elaboration of the HCV cascade of care using local data, it was possible to stratify and evaluate risk factors associated with losses between each step of the cascade, to inform new strategies to guide elimination efforts in the future.

"Treated like a Human Being": perspectives of people who inject drugs attending low-threshold HCV treatment at a syringe service program in New York City

BACKGROUND

Hepatitis C virus (HCV) treatment can effectively cure HCV among people who inject drugs (PWID). Perspectives of PWID treated in innovative models can reveal program features that address barriers to treatment, and guide implementation of similar models.

METHODS

We interviewed 29 participants in the intervention arm of a randomized trial. The trial enrolled PWID with HCV in New York City from 2017 to 2020 and tested the effectiveness of a low-threshold HCV treatment model at a syringe services program. Participants were purposively sampled and interviewed in English or Spanish. The interview guide focused on prior experiences with HCV testing and treatment, and experiences during the trial. Interviews were inductively coded and analyzed using thematic analysis.

RESULTS

Before enrollment, participants reported being tested for HCV in settings such as prison, drug treatment, and emergency rooms. Treatment was delayed because of not being seen as urgent by providers. Participants reported low self-efficacy, competing priorities, and systemic barriers to treatment such as insurance, waiting lists, and criminal-legal interactions. Stigma was a major factor. Treatment during the trial was facilitated through respect from staff, which overcame stigma. The flexible care model (allowing walk-ins and missed appointments) helped mitigate logistical barriers. The willingness of the staff to address social determinants of health was highly valued.

CONCLUSION

Our findings highlight the need for low-threshold programs with nonjudgmental behavior from program staff, and flexibility to adapt to participants' needs. Social determinants of health remain a significant barrier, but programs' efforts to address these factors can engender trust and facilitate treatment. Trial registration NCT03214679.

Minimal monitoring is a safe but underutilised strategy for hepatitis C virus management in Singapore

Chronic hepatitis C virus (HCV) infection is estimated to affect 57 million people globally.1 Despite the availability of safe and effective pan-genotypic direct acting antivirals,2-5 many countries have yet to achieve the WHO goal of HCV elimination by 2030.1

Perspectives on Adherence From the ACTG 5360 MINMON Trial: A Minimum Monitoring Approach With 12 Weeks of Sofosbuvir/Velpatasvir in Chronic Hepatitis C Treatment

BACKGROUND

With the advent of efficacious oral direct-acting antivirals (DAAs) for hepatitis C virus (HCV), identification of characteristics associated with adherence is critical to treatment success. We examined correlates of sub-optimal adherence to HCV therapy in a single-arm, multinational, clinical trial.

METHODS

ACTG A5360 enrolled HCV treatment-naive persons without decompensated cirrhosis from 5 countries. All participants received a 12-weeks course of sofosbuvir/velpatasvir at entry. In-person visits occurred at initiation and week 24, sustained virologic response (SVR) assessment. Adherence at week 4 was collected remotely and was dichotomized optimal (100%, no missed doses) versus sub-optimal (<100%). Correlates of sub-optimal adherence were explored using logistic regression.

RESULTS

In total, 400 participants enrolled; 399 initiated treatment; 395/397 (99%) reported completing at week 24. Median age was 47 years with 35% female. Among the 368 reporting optimal adherence at week 4 SVR was 96.5% (95% confidence interval [CI] [94.1%, 97.9%]) vs 77.8% (95% CI [59.2%, 89.4%]) P value < .001. In the multivariate model age <30 years and being a US participant were independently associated with early sub-optimal adherence. Participants <30 years were 7.1 times more likely to have early sub-optimal adherence compared to their older counterparts.

CONCLUSIONS

Self-reported optimal adherence at week 4 was associated with SVR. Early self-reported adherence could be used to identify those at higher risk of treatment failure and may benefit from additional support. Younger individuals <30 years may also be prioritized for additional adherence support. Clinical Trials Registration. NCT03512210.

Hepatitis C Guidance 2023 Update: AASLD-IDSA Recommendations for Testing, Managing, and Treating Hepatitis C Virus Infection

The Infectious Diseases Society of America and the American Association for the Study of Liver Diseases have collaboratively developed evidence-based guidance regarding the diagnosis, management, and treatment of hepatitis C virus (HCV) infection since 2013. A panel of clinicians and investigators with extensive infectious diseases or hepatology expertise specific to HCV infection periodically review evidence from the field and update existing recommendations or introduce new recommendations as evidence warrants. This update focuses on changes to the guidance since the previous 2020 published update, including ongoing emphasis on recommended universal screening; management recommendations for incomplete treatment adherence; expanded eligibility for simplified chronic HCV infection treatment in adults with minimal monitoring; updated treatment and retreatment recommendations for children as young as 3 years old; management and treatment recommendations in the transplantation setting; and screening, treatment, and management recommendations for unique and key populations.

Patient outcomes in public sector hepatitis C treatment programmes: a retrospective cohort analysis across five low- and middle-income countries

OBJECTIVES

Given limited data on factors associated with hepatitis C virus (HCV) treatment discontinuation and failure in low- and middle-income countries, we aimed to describe patient populations treated for HCV in five countries and identify patient groups that may need additional support.

DESIGN

Retrospective cohort analysis using routinely collected data.

SETTING

Public sector HCV treatment programmes in India (Punjab), Indonesia, Myanmar, Nigeria (Nasarawa) and Vietnam.

PARTICIPANTS

104 957 patients who initiated treatment in 2016-2022 (89% from Punjab).

PRIMARY OUTCOMES

Treatment completion and cure.

RESULTS

Patient characteristics and factors associated with outcomes varied across countries and facilities. Across all patients, median age was 40 years (IQR: 29-52), 30.6% were female, 7.0% reported a history of injecting drugs, 18.2% were cirrhotic and 4.9% were coinfected with HIV. 79.8% were prescribed sofosbuvir+daclastasvir. Of patients with adequate follow-up, 90.6% (89,551) completed treatment. 77.5% (69,426) of those who completed treatment also completed sustained virological testing at 12 weeks (SVR12), and of those, 92.6% (64 305) were cured. In multivariable-adjusted models, in most countries, significantly lower treatment completion was observed among patients on 24-week regimens (vs 12-week regimens) and those initiated in later years of the programme. In several countries, males, younger patients <20 years and certain groups of cirrhotic patients were less likely to complete treatment or be cured. In Punjab, treatment completion was also lower in those with a family history of HCV and people who inject drugs (PWID); in other countries, outcomes were comparable for PWID.

CONCLUSION

High proportions of patients completed treatment and were cured across patient groups and countries. SVR12 follow-up could be strengthened. Males, younger people and those with decompensated cirrhosis on longer regimens may require additional support to complete treatment and achieve cure. Adequate programme financing, minimal user fees and implementation of evidence-based policies will be critical to close gaps.

Prospects for Long-Acting Treatments for Hepatitis C

In 2019, more than 4 years after the widespread availability of safe, oral, curative treatments, an estimated 58 million people were living with hepatitis C virus infections (PLWHC). Additional tools may enable those not yet reached to be treated. One such tool could be long-acting parenteral formulations of HCV treatments, which may allow PLWHC to be diagnosed and cured in a single encounter. Although existing highly effective oral medications might be formulated as long-acting parenteral treatments, pharmacological, regulatory, patent, and medical challenges have to be overcome; this requires the concerted efforts of PLWHC, researchers, funding agencies, industry, the World Health Organization, and other stakeholders.

Global Real-World Evidence of Sofosbuvir/Velpatasvir as a Highly Effective Treatment and Elimination Tool in People with Hepatitis C Infection Experiencing Mental Health Disorders

Hepatitis C virus (HCV) is prevalent in people with mental health disorders, a priority population to diagnose and cure in order to achieve HCV elimination. This integrated analysis pooled data from 20 cohorts in seven countries to evaluate the real-world effectiveness of the pangenotypic direct-acting antiviral (DAA) sofosbuvir/velpatasvir (SOF/VEL) in people with mental health disorders. HCV-infected patients diagnosed with mental health disorders who were treated with SOF/VEL for 12 weeks without ribavirin as part of routine clinical practice were included. The primary outcome was sustained virological response (SVR) in the effectiveness population (EP), defined as patients with an available SVR assessment. Secondary outcomes were reasons for not achieving SVR, characteristics of patients with non-virological failures, adherence, and time from HCV RNA diagnosis to SOF/VEL treatment initiation. A total of 1209 patients were included; 142 did not achieve an SVR for non-virological reasons (n = 112; 83 lost to follow-up, 20 early treatment discontinuations) or unknown reasons (n = 30). Of the 1067 patients in the EP, 97.4% achieved SVR. SVR rates in the EP were ≥95% when stratified by type of mental health disorder and other complicating baseline characteristics, including active injection drug use and antipsychotic drug use. Of 461 patients with data available in the EP, only 2% had an adherence level < 90% and 1% had an adherence level < 80%; all achieved SVR. Patients with mental health disorders can be cured of HCV using a well-tolerated, pangenotypic, protease inhibitor-free SOF/VEL regimen. This DAA allows the implementation of a simple treatment algorithm, with minimal monitoring requirements and fewer interactions with central nervous system drugs compared with protease-inhibitor DAA regimens.

Rapid Treatment Initiation for Hepatitis C Virus Infection: Potential Benefits, Current Limitations, and Real-World Examples

The science for rapid treatment initiation for hepatitis C virus infection is in place. Easy and quick diagnostic tools can provide results within an hour. Necessary assessment before treatment initiation is now minimal and manageable. Treatment has a low dose burden and high tolerability. Although the critical components for rapid treatment are accessible, certain barriers prevent wider utilization, including insurance restrictions and delays in the health care system. Rapid treatment initiation can improve linkage to care by addressing many barriers to care at once, which is essential for achieving a care plateau. Young people with low health care engagement, finitely engaged people (eg, those who are incarcerated), or people with high-risk injection drug behavior, and thereby high risk for transmission of hepatitis C virus, can benefit the most from rapid treatment. Several innovative care models have demonstrated the potential for rapid treatment initiation by overcoming barriers to care with rapid diagnostic testing, decentralization, and simplification. Expanding these models is likely to be an important component for the elimination of hepatitis C virus infection. This article reviews the current motivation for rapid treatment initiation for hepatitis C virus infection and published literature describing rapid treatment initiation models.

Treatment of hepatitis C in primary health care in the country of Georgia

Content available: Audio Recording.

Integrating Management of Hepatitis C Infection into Primary Care: the Key to Hepatitis C Elimination Efforts

Elimination of hepatitis C virus (HCV), a leading cause of liver disease in the USA and globally, has been made possible with the advent of highly efficacious direct acting antivirals (DAAs). DAA regimens offer cure of HCV with 8-12 weeks of a well-tolerated once daily therapy. With increasingly straightforward diagnostic and treatment algorithms, HCV infection can be managed not only by specialists, but also by primary care providers. Engaging primary care providers greatly increases capacity to diagnose and treat chronic HCV and ultimately make HCV elimination a reality. However, barriers remain at each step in the HCV cascade of care from screening to evaluation and treatment. Since primary care is at the forefront of patient contact, it represents the ideal place to concentrate efforts to identify barriers and implement solutions to achieve universal HCV screening and increase curative treatment.

CROI 2022: advances in antiviral therapy for HIV, COVID-19, and viral hepatitis

The 2022 Conference on Retroviruses and Opportunistic Infections provided a rich source of new data and comprehensive reviews on antiviral therapy. For COVID-19, intramuscular sotrovimab was noninferior to intravenous sotrovimab, serostatus did not predict the efficacy of sotrovimab, and molnupiravir appeared safe and modestly effective in decreasing hospitalization rates. Trials from low- and middle-income countries provided data to support transitioning those on first-line therapy with or without virologic suppression and those virologically suppressed on second-line therapy to dolutegravir-based regimens. Additional data supported the use of lenacapavir as a long-acting antiretroviral drug. Data across the United States demonstrate the negative impact of the COVID-19 pandemic on the HIV care continuum, although enhanced outreach efforts and decentralization of antiretroviral therapy delivery were associated with improvements in care engagement outcomes. Researchers described potential mechanisms for the emergence of integrase strand transfer inhibitor resistance. Studies on proviral genotyping high-lighted the limitations of its use in predicting clinically significant resistance. Several studies looked at the epidemiology and treatment of hepatitis C and B and the status of current hepatitis C virus elimination efforts. Data presented on HIV, COVID-19, and maternal and pediatric health included 2-year virologic outcome data of very early antiretroviral therapy in potentially reducing the latent HIV reservoir in infants with HIV. Data presented on COVID-19 and HIV therapeutics in children included SARS-CoV-2-neutralizing monoclonal antibodies in children younger than 12 years of age, remdesivir in hospitalized infants and children, and long-acting therapies for HIV treatment in children.

A retrospective, descriptive study of hepatitis C testing, prevalence, and care continuum among adults on probation

BACKGROUND

Despite constituting the largest segment of the correctional population, individuals on court-ordered probation remain largely unstudied with respect to hepatitis C virus (HCV) testing and linkage-to-care. We conducted a retrospective, descriptive analysis to estimate prevalence of diagnosed HCV and the subsequent HCV care cascade among a cohort of individuals enrolled in an adult probation program over a 25-month period in Denver, Colorado.

METHODS

We utilized probabilistic matching with first and last name, sex, and birthdate to identify individuals enrolled in probation between July 1, 2016 and July 30, 2018 who had a medical record at the participating safety-net healthcare institution as of December 31, 2019. Electronic medical record data were queried for evidence of HCV testing and care through June 30, 2021. The state HCV registry was also queried for prevalence of reported HCV cases among the cohort.

RESULTS

This cohort included 8,903 individuals; 6,920 (78%) individuals had a medical record at the participating institution, and of these, 1,037 (15%) had ever been tested for HCV (Ab or RNA) and 308 (4% of those with a medical record, 30% of those tested) had detectable HCV RNA. Of these, 105 (34%) initiated HCV treatment, 89 (29%) had a subsequent undetectable HCV viral load, and 65 (21%) had documentation of HCV cure. Eleven percent of the total cohort had records of positive HCV Ab or RNA tests in the state HCV registry.

CONCLUSIONS

This study demonstrates the importance of HCV screening and linkage-to-care for individuals enrolled in probation programs. A focus on this population could enhance progress towards HCV elimination goals.

Telemedicine Improves HCV Elimination among Italian People Who Use Drugs: An Innovative Therapeutic Model to Increase the Adherence to Treatment into Addiction Care Centers Evaluated before and during the COVID-19 Pandemic

People who use drugs (PWUDs) are generally considered "hard-to-treat" patients, due to adherence to HCV antiviral therapy or re-infection concerns. Linkage-to-care still remains a significant gap for HCV elimination, worsened by the COVID-19 pandemic. To reduce time-to-treat and improve treatment adherence, we have developed a patient-tailored model-of-care, decentralized within the addiction center and supervised remotely by hepatologists. From January 2017 to December 2020, patients were enrolled in one addiction care center in Southern Italy, where a complete hepatologic assessment, including blood chemistry, ultrasound, and transient elastography examination, was provided. DAAs treatment has been adapted on clinical features, also performing a daily administration during an outpatient visit, and monitored remotely by specialists via telemedicine interactions. Adherence was evaluated on the accomplishment of therapy or on the percentage of attended visits. From a total of 690 PWUDs, 135 had an active HCV infection and were enrolled in the study. All patients started the treatment within 3 weeks after HCV diagnosis. Six drop-outs were recorded, obtaining a sustained virological response at week 12 (SVR12) in 98.5% of PWUDs. There were only two cases of treatment failure, one of which is re-infection. No differences were found between the SVR12 rates before and during the COVID-19 pandemic. We obtained a high SVR12 rate, providing a comprehensive assessment within the addiction care center, tailoring the drug administration with a hepatologic remote stewardship. Our therapeutic model should improve the time-to-treat and treatment adherence in PWUDs.

Rapid Treatment Initiation for Hepatitis C in Young People Who Inject Drugs: The Seek, Test, & Rapid Treatment (ST&RT) Randomized Trial

Background

Young people who inject drugs (PWID) have high hepatitis C virus (HCV) incidence and low treatment initiation rates. Novel, simplified care models need to be developed to engage, treat, and cure hard-to-reach patient populations, such as young PWID. We present final data from the randomized pilot clinical trial “HCV-Seek Test and Rapid Treatment” for curing HCV in young PWID.

Methods

Participants were recruited from the community and eligible if they were 18–29 years of age, HCV antibody-positive, treatment naive, and had injected drugs in the past 30 days. Participants were randomized 1:1 to “Rapid Treatment or Usual Care”. Participants randomized to Rapid Treatment received same-day medical evaluation, confirmatory and baseline laboratory testing, and a 7-day starter pack of sofosbuvir/velpatasvir at a syringe service program (SSP). Participants in “Usual Care” received same-day HCV confirmatory testing at the SSP and, if positive, facilitated referral to local providers. The primary endpoint was sustained virologic response at 12 weeks (SVR12) in HCV ribonucleic acid (RNA)⁺ participant.

Results

Forty-seven HCV antibody-positive participants were enrolled, and 25 participants had confirmed HCV and were included in the modified intention to treat analysis, with 9 of 14 (64%) of the Rapid Treatment arm and 1 of 11 (9.1%) of the Usual Care arm achieving a confirmed SVR12 (P = .01).

Conclusions

Among young HCV RNA⁺ PWID, significantly higher rates of cure were achieved using the Rapid Treatment model compared with facilitated referral. Providing easy access to HCV treatment for young PWID in low-threshold settings and initiating HCV treatment quickly appears to be a promising strategy for treating this hard-to-reach population.

Feasibility of decentralised, task-shifted hepatitis C testing and treatment services in urban Myanmar: implications for scale-up

OBJECTIVES

To assess the feasibility considerations for a decentralised, one-stop-shop model of care implemented in Yangon, Myanmar.

SETTING

Two primary care level clinics in urban Yangon, Myanmar.

DESIGN

This is a feasibility study of a highly effective care model. Using Intervention Complexity Framework by Gericke et al, we collated and analysed programmatic data and evaluation data to outline key project implementation requirements and experiences.

PARTICIPANTS

Programmatic data were collected from clinical records, GeneXpert device test and maintenance reports, national guidelines, product and device instructions and site monitoring visit reports. Healthcare providers involved in delivering care model contributed interview data.

RESULTS

The main feasibility considerations are appropriate storage for test kits and treatments (in response to temperature and humidity requirements), installation of a continuous stable electricity supply for the GeneXpert device, air-conditioning for the laboratory room hosting GeneXpert, access to a laboratory for pretreatment assessments and clear referral pathways for specialist consultation when required. Lessons from our project implementation experiences included the extensive time requirements for patient education, the importance of regular error monitoring and stock storage reviews and that flexible appointment scheduling and robust reminder system likely contributed to high retention in care.

CONCLUSIONS

Detailed documentation and dissemination of feasibility requirements and implementation considerations is vital to assist others to successfully implement a similar model of care elsewhere. We provide 10 recommendations for successful implementation.

TRIAL REGISTRATION NUMBER

The trial was registered at ClinicalTrials.gov NCT03939013 on May 6, 2019. This manuscript presents post-results data on feasibility.

Viral hepatitis: Past, present, and future

Each hepatitis virus-Hepatitis A, B, C, D, E, and G-poses a distinct scenario to the patient and clinician alike. Since the discovery of each virus, extensive knowledge regarding epidemiology, virologic properties, and the natural clinical and immunologic history of acute and chronic infections has been generated. Basic discoveries about host immunologic responses to acute and chronic viral infections, combined with virologic data, has led to vaccines to prevent Hepatitis A, B, and E and highly efficacious antivirals for Hepatitis B and C. These therapeutic breakthroughs are transforming the fields of hepatology, transplant medicine in general, and public and global health. Most notably, there is even an ambitious global effort to eliminate chronic viral hepatitis within the next decade. While attainable, there are many barriers to this goal that are being actively investigated in basic and clinical labs on the local, national, and international scales. Herein, we discuss pertinent clinical information and recent organizational guidelines for each of the individual hepatitis viruses while also synthesizing this information with the latest research to focus on exciting future directions for each virus.