Managing hepatitis C in users of illicit drugs

Hepatitis C Treatment in Kentucky Medicaid Recipients with Concurrent Opioid Use Disorder: A Cross-Sectional Study

BACKGROUND

Hepatitis C virus (HCV) infections and injection drug use have concurrently increased in the last decade. Evidence supports simultaneously treating chronic HCV and opioid use disorder (OUD) with medication. Kentucky is a hard-hit state for both conditions that has undertaken policy and practice efforts to increase access to both types of medications.

OBJECTIVE

To examine receipt of direct-acting antivirals (DAAs) for patients living with HCV-OUD and received any vs. no medications for opioid use disorder (MOUD).

DESIGN

We conducted a cross-sectional study using a proprietary dataset from HealthVerity of health claims between 1/1/2020 and 12/31/2021.

PATIENTS

Kentucky Medicaid beneficiaries aged ≥ 18 with concurrent chronic HCV-OUD diagnoses.

MAIN MEASURES

Multivariable logistic regression models were used to calculate adjusted proportions of HCV DAA receipt based on receipt of MOUD, adjusting for patient characteristics and region.

KEY RESULTS

Of 2149 patients, 36% (n = 780) received HCV DAAs; 84% (n = 1804) received any MOUD during the study period. Buprenorphine was the most common MOUD type used (n = 1414, 66%). Adjusting for covariates, HCV DAA receipt was lower among people who received any vs. no MOUD (33% vs. 46%, p < 0.0001). Methadone (vs. no MOUD, 29% vs. 46%, p = 0.0002) had the greatest difference in odds of HCV DAA receipt.

CONCLUSIONS

Gaps in HCV treatment among Kentucky Medicaid recipients with OUD were pervasive. Despite evidence supporting HCV-OUD co-treatment, patients receiving MOUD were significantly less likely to receive curative HCV treatment.

Managing Addiction and Overdose Deaths: The Debate Over America's Safe Injection Spaces

In the decade between 2010 and 2020, the number of people killed by opioid overdoses more than tripled, reaching 68,630. Among drug users in their second and third decades of life, hepatitis B and C are also on the rise. New York City's two new supervised drug injection sites (SDISs) reversed 114 overdoses within two months, and 585 people injecting drugs visited the facility 4,974 times. By providing medical professionals and a sterile and safe environment, supervised injection sites reduce overdose risk and save lives. This suggests that SDISs could be an important adjunct to currently failing strategies to combat the nation's raging opioid crisis, particularly in the aftermath of the COVID-19 pandemic. Here, we examine the perception and impact of SDISs as well as efforts by the United States Congress (H.R. 7029 and H.R. 6159) toward their prevention. We look into the perspectives of major stakeholders, such as residents, business owners, drug users, legislators, taxpayers, and the general public, and investigate the short- and long-term consequences of SDISs based on crime statistics and published data on opioid use, overdose deaths, and blood-borne disease transmission rates.

Coproduction of Low-Barrier Hepatitis C Virus and HIV Care for People Who Use Drugs in a Rural Community: Brief Qualitative Report

BACKGROUND

People who inject drugs are experiencing syndemic conditions with increasing risk of infection with hepatitis C (HCV) and HIV. However, rates of accessing HCV and HIV testing and treatment among people who inject drugs are low for various reasons, including the criminalization of drug use, which leads to a focus on treating drug use rather than caring for drug users. For many people who inject drugs, health care becomes a form of structural violence, resulting in traumatic experiences, fear of police violence, unmet needs, and avoidance of medical care. There is a clear need for novel approaches to health care delivery for people who inject drugs.

OBJECTIVE

This study aimed to analyze the process of a multidisciplinary team-encompassing health care professionals, community representatives, researchers, and people with lived experience using drugs-that was formed to develop a deep understanding of the experiences of people who inject drugs and local ecosystem opportunities and constraints to inform the cocreation of low-barrier, innovative HCV or HIV care in a rural community. Given the need for innovative approaches to redesigning health care, we sought to identify challenges and tensions encountered in this process and strategies for overcoming these challenges.

METHODS

Analysis was based on an in-depth review of meeting notes from the project year, followed by member-checking with the project team to revise and expand upon the challenges encountered and strategies identified to navigate these challenges.

RESULTS

Challenges and tensions included: scoping the project, setting the pace and urgency of the work, adapting to web-based work, navigating ethics and practice of payment, defining success, and situating the project for sustainability. Strategies to navigate these challenges included: dedicated effort to building personal and meaningful connections, fostering mutual respect, identifying common ground to make shared decisions, and redefining successes.

CONCLUSIONS

While cocreated care presents challenges, the resulting program is strengthened by challenging assumptions and carefully considering various perspectives to think creatively and productively about solutions.

"Sobriety equals getting rid of hepatitis C": A qualitative study exploring the interplay of substance use disorder and hepatitis C among hospitalized adults

BACKGROUND

People who use drugs (PWUD) commonly experience complex illness, psychosocial stressors, housing insecurity, and stigma, which may play key roles in their struggles with addiction. In a study of hospitalized PWUD with hepatitis C virus infection (HCV), participants described treating HCV as "part of recovery." These findings led us to explore how hospitalization and acute illness altered patients' perceptions of substance use disorder (SUD) and HCV.

METHODS

Researchers audio recorded in-depth semi-structured individual interviews of 27 hospitalized adults with SUD and HCV seen by an addiction consult service (ACS) at an urban academic medical center between June and November 2019. Research staff transcribed interviews and dual coded them deductively and inductively at the semantic level. Researchers used a matrix visualization to discern relationships among codes and conducted a thematic analysis.

RESULTS

Many participants believed addictions treatment should precede an HCV cure for varying reasons. Some wanted to avoid reinfection; others believed "getting clean" afforded the mental clarity to address health issues, including HCV. Patients newly engaged in SUD treatment described HCV treatment as a "step towards recovery" and could serve as motivation to continue SUD treatment. Participants believed HCV cure could facilitate sobriety by "mentally putting drugs in the past" and was a future-oriented action toward "better health." Many participants described the compounded stigma of having HCV infection and SUD by multiple groups, including friends/family who do not use drugs, other drug users, and health care workers.

CONCLUSION

Hospitalized adults with SUD and HCV believed addictions engagement should precede HCV treatment and HCV cure could play an important role in their "recovery" journey. Discussing HCV treatment during hospitalization may be an opportunity to support engagement in SUD treatment and targets an untreated patient population critical for achieving HCV elimination.

HCV microelimination strategies: An interventional study in diagnosed patients without access to the system

Hepatitis C virus (HCV) one-step diagnosis improves recovery in patients with active infection. However, patients with previous anti-HCV+ may be excluded. We aimed to identify and retrieve non-referred or lost-to-follow-up HCV-infected patients. All anti-HCV+ patients seen in our hospital between 2013 and 2018 were included. In the first phase, we identified anti-HCV+ patients who were not referred to the Gastroenterology Unit (GU) or lost-to-follow-up. In the second phase, recovered patients were invited for a one-step visit for liver evaluation. A total of 1330 anti-HCV+ patients were included: 21.7% had not been referred to GU, and 23.1% were lost-to-follow-up. In the second phase, 49.6% of patients were contacted, and 92.8% attended a medical consultation: 62.7% had active infection, 92.2% were treated, and 86.5% achieved SVR (ITT). We concluded that screening microbiological data and referring unidentified patients with active HCV infection directly to specialists is an effective tool in achieving HCV microelimination.

Incidence and Impact of Persistent Viremia on SVR Rates in Patients Receiving Direct-Acting Antiviral Therapy

Rates of persistent viremia (PV) while on direct-acting antiviral therapy were low (5.7%) in a real-world cohort of 983 patients. High sustained virologic response rates were achieved both in patients with PV (92.9%) and those with rapid virologic response (96.5%), without significant differences.

Comorbidities and medications of patients with chronic hepatitis C under specialist care in the UK

Designing services with the capacity and expertise to meet the needs of the chronic hepatitis C (CHC) population in the era of direct acting antivirals (DAAs), and widening access to such treatments, requires detailed understanding of the characteristics and healthcare needs of the existing patient population. In this retrospective analysis of data from the National HCV Research UK Biobank between March 2012 and October 2014, the characteristics of the CHC population currently under specialist care in the UK were evaluated-with specific focus upon use of medications, adverse lifestyle choices, and comorbidities. Demographic data, risk factors for CHC acquisition, HCV genotype, liver disease status, lifestyle factors, comorbidities, and medication classes were collected. Data were analyzed by history of injecting drug use (IDU), age, and severity of liver disease. A total of 6278 patients (70.5% white; median age, 52 years) from 59 UK specialist centres were included; 59.1% of patients had acquired HCV through IDU. The prevalence of adverse lifestyle factors was significantly lower in non-IDU compared with previous IDU or recent IDU patients. Depression was common in the previous (50.8%) and recent IDU (68.1%) groups, compared with 27.6% in non-IDU patients. Cirrhosis was common (23.6%), and prevalence increased with age. We describe a heterogeneous, polymorbid, and aging population of CHC patients in secondary care, and demonstrate underrepresentation of injecting drug users within the current system. The implications of this present significant challenges to physicians and healthcare commissioners in designing services which are fit for purpose inthe DAA era.

Drugs of abuse and addiction: A slippery slope toward liver injury

Substances of abuse induce alteration in neurobehavioral symptoms, which can lead to simultaneous exacerbation of liver injury. The biochemical changes of liver are significantly observed in the abused group of people using illicit drugs or drugs that are abused. A huge amount of work has been carried out by scientists for validation experiments using animal models to assess hepatotoxicity in cases of drugs of abuse. The risk of hepatotoxicity from these psychostimulants has been determined by different research groups. Hepatotoxicity of these drugs has been recently highlighted and isolated case reports always have been documented in relation to misuse of the drugs. These drugs induce liver toxicity on acute or chronic dose dependent process, which ultimately lead to liver damage, acute fatty infiltration, cholestatic jaundice, liver granulomas, hepatitis, liver cirrhosis etc. Considering the importance of drug-induced hepatotoxicity as a major cause of liver damage, this review emphasizes on various drugs of abuse and addiction which induce hepatotoxicity along with their mechanism of liver damage in clinical aspect as well as in vitro and in vivo approach. However, the mechanisms of drug-induced hepatotoxicity is dependent on reactive metabolite formation via metabolism, modification of covalent bonding between cellular components with drug and its metabolites, reactive oxygen species generation inside and outside of hepatocytes, activation of signal transduction pathways that alter cell death or survival mechanism, and cellular mitochondrial damage, which leads to alteration in ATP generation have been notified here. Moreover, how the cytokines are modulated by these drugs has been mentioned here.

Can hepatitis C be eradicated in the United States?

The advent of highly effective antiviral regimens will make the eradication of hepatitis C in high-income countries such as the United States technically feasible. But eradicating hepatitis C will require escalating our response to the epidemic in key domains, including surveillance and epidemiology, prevention, screening, care and treatment, policy, research, and advocacy. Surveillance must be nimble enough to quickly assess the magnitude of new transmission patterns as they emerge. Basic prevention strategies - community-based outreach and education, testing and counseling, and access to sterile injection equipment and opioid substitution therapies - must be scaled up and adapted to target groups in which new epidemics are emerging. All adults should be screened for hepatitis C, but special efforts must focus on groups with increased prevalence through community outreach and rapid testing. Government, industry, and payers must work together to assure full access to health services and antiviral drugs for everyone who is infected. Access to the new regimens must not be compromised by excessively high prices or arbitrary payer restrictions. Partnerships must be forged between hepatitis providers and programs that serve people who inject illicit drugs. Healthcare providers and systems, especially primary care practitioners, need education and training in treating hepatitis C and caring for substance-using populations. Services must be provided to the disadvantaged and stigmatized members of society who bear a disproportionate burden of the epidemic. Environments must be created where people who use drugs can receive prevention and treatment services without shame or stigma. Action is needed to end the policy of mass incarceration of people who use drugs, reduce the stigma associated with substance use, support the human rights of people who use drugs, expand social safety net services for the poor and the homeless, remove the legal barriers to hepatitis C prevention, and build public health infrastructure to reach, engage, and serve marginalized populations. Governments must take action to bring about these changes. Public health agencies must work with penal institutions to provide prevention and treatment services, including antiviral therapy, to those in need in jails and prisons or on probation or parole. Research is needed to guide efforts in each of these domains. Strong and sustained political advocacy will be needed to build and sustain support for these measures. Leadership must be provided by physicians, scientists, and the public health community in partnership with community advocates and people living with or at risk for hepatitis C. Eliminating hepatitis C from the United States is possible, but will require a sustained national commitment to reach, test, treat, cure, and prevent every case. With strong political leadership, societal commitment, and community support, hepatitis C can be eradicated in the United States. If this is to happen in our lifetimes, the time for action is now. This article forms part of a symposium in Antiviral Research on "Hepatitis C: next steps toward global eradication."