Outpatient drug treatment program directors' hepatitis C-related beliefs and their relationship to the provision of HCV services

Treatment of Chronic Hepatitis C in Patients Receiving Opioid Agonist Therapy: A Review of Best Practice

Injection drug use is the most common transmission route for hepatitis C. High rates of infection are observed among individuals on opioid agonist therapy. Although people who inject drugs carry the highest burden, few have initiated treatment. We present a comprehensive review of the evidence on the efficacy of HCV medications, drug-drug interactions, and barriers to and models of care. Studies have demonstrated comparable efficacy for individuals who are on opioid agonist therapy compared with those who are not. We propose that a strategy of treatment and cure-as-prevention is imperative in this population to curb the hepatitis C epidemic.

Retention in buprenorphine treatment is associated with improved HCV care outcomes

Persons who inject drugs, most of whom are opioid dependent, comprise the majority of the HCV infected in the United States. As the national opioid epidemic unfolds, increasing numbers of people are entering the medical system to access treatment for opioid use disorder, specifically with buprenorphine. Yet little is known about HCV care in patients accessing buprenorphine-based opioid treatment. We sought to determine the HCV prevalence, cascade of care, and the association between patient characteristics and completion of HCV cascade of care milestones for patients initiating buprenorphine treatment. We reviewed electronic health records of all patients who initiated buprenorphine treatment at a primary-care clinic in the Bronx, NY between January 2009 and January 2014. Of the 390 patients who initiated buprenorphine treatment, 123 were confirmed to have chronic HCV infection. The only patient characteristic associated with achieving HCV care milestones was retention in opioid treatment. Patients retained (vs. not retained) in buprenorphine treatment were more likely to be referred for HCV specialty care (63.1% vs. 34.0%, p<0.01), achieve an HCV-specific evaluation (40.8% vs. 21.3%, p<0.05), be offered HCV treatment (22.4% vs. 8.5%, p<0.05), and initiate HCV treatment (9.2% vs. 6.4%, p=0.6). Given the current opioid epidemic in the US and the growing number of people receiving buprenorphine treatment, there is an unprecedented opportunity to access and treat persons with HCV, reducing HCV transmission, morbidity and mortality. Retention in opioid treatment may improve linkage and retention in HCV care; innovative models of care that integrate opioid drug treatment with HCV treatment are essential.

Hepatitis C testing in substance use disorder treatment: the role of program managers in adoption of testing services

BACKGROUND

Health care organizations do not adopt best practices as often or quickly as they merit. This gap in the integration of best practices into routine practice remains a significant public health concern. The role of program managers in the adoption of best practices has seldom been investigated.

METHODS

We investigated the association between characteristics of program managers and the adoption of hepatitis C virus (HCV) testing services in opioid treatment programs (OTPs). Data came from the 2005 (n = 187) and 2011 (n = 196) National Drug Abuse Treatment System Survey (NDATSS). We used multivariate regression models to examine correlates of the adoption of HCV testing. We included covariates describing program manager characteristics, such as their race/ethnicity, education, and their sources of information about developments in the field of substance use disorder treatment. We also controlled for characteristics of OTPs and the client populations they serve.

RESULTS

Program managers were predominantly white and female. A large proportion of program managers had post-graduate education. Program managers expressed strong support for preventive services, but they reported making limited use of available sources of information about developments in the field of substance use disorder (SUD) treatment. The provision of any HCV testing (either on-site or off-site) in OTPs was positively associated with the extent to which a program manager was supportive of preventive services. Among OTPs offering any HCV testing to their clients, on-site HCV testing was more common among programs with an African American manager. It was also more common when program managers relied on a variety of information sources about developments in SUD treatment.

CONCLUSIONS

Various characteristics of program managers are associated with the adoption of HCV testing in OTPs. Promoting diversity among program managers, and increasing managers' access to information about developments in SUD treatment, may help foster the adoption of best practices.

Determining hepatitis C virus genotype distribution among high-risk groups in Iran using real-time PCR

AIM: To assess hepatitis C virus (HCV) genotype patterns among high-risk Iranian groups, using real-time RT-PCR.

METHODS: In this study, we evaluated the distribution of different HCV genotypes among injection drug users and other high-risk groups over a 4-year period (from 2009 to 2012) using real-time polymerase chain reaction (PCR). Sera from 888 HCV-infected patients residing in southern and southwest Iran were genotyped using real-time PCR with common primers and specific probes. These patients were grouped into distinct exposure categories. Illicit drug users constituted the primary group and were further evaluated for HCV genotype distribution and parameters such as age range.

RESULTS: Of the examined HCV-infected patients, 62% were substance abusers, although the route of transmission could not be determined in approximately 30% of these patients. HCV genotyping revealed that Gt1 was the most prevalent genotype among the drug users as well as among patients with thalassemia, hemophilia, solid organ recipients and those on hemodialysis. Mixed infections were only seen in addict groups, where Gt2 genotype was also found. The highest frequencies in HCV-positive addict patients were observed in the 31-40 age group. Our research also showed that the addiction age has increased, whereas the addiction rate has dropped in this region. Most illicit drug users had more than one risk factor such as tattoo and/or a history of imprisonment.

CONCLUSION: This study revealed that the most common HCV-infection route and HCV-genotype in southern and southwest Iran was illicit drug abuse and Gt1, respectively.

The politics of place(ment): problematising the provision of hepatitis C treatment within opiate substitution clinics

The hepatitis C virus (HCV) epidemic is a significant public health challenge in Australia. Current initiatives to expand access to HCV treatment focus on opiate substitution therapy (OST) settings where the prevalence of hepatitis C among clients is high. In Australia, the provision of OST for many clients is via large clinics, with an estimated median of 150 clients per service. Conceptually informed by the work of Michel Foucault, our analysis of the proposed integrated treatment model focuses on the critical but overlooked question of organisational culture and power operating within OST. We argue that the specific context of OST not merely reflects but actively participates in the political economy of social exclusion via which the socio-spatial segregation and stigmatisation of the service user as 'drug user' is enacted. This paper analyses data collected from two samples during 2008/9: OST clients living in New South Wales, Australia and a range of OST health professionals working in Australian settings. In total, 27 interviews were conducted with current OST clients; 19 by phone and 8 face-to-face. One focus group and 16 telephone interviews were conducted with OST health professionals. Our analysis of key themes emerging from the interview data suggests that the successful introduction of HCV treatment within the OST clinic is not a given. We are concerned that particular areas of tension, if not explicit contradiction, have been overlooked in current research and debates informing the proposed combination treatment model. We question the appropriateness of co-locating a notoriously arduous, exacting treatment (HCV) within the highly surveillant and regulatory environment of OST. While applauding the intention to improve access to HCV care and treatment for people who inject drugs we caution against a treatment model that risks further entrenching (socio-spatial) stigmatisation amongst those already experiencing significant marginalisation.

Staff Perspectives on Facilitating the Implementation of Hepatitis C Services at Drug Treatment Programs

Drug users are at risk of acquiring the hepatitis C virus (HCV). Although ancillary services available to clients at drug treatment programs are often limited, some of these programs are providing HCV services. Presenting qualitative data, the authors describe the HCV education and/or support services available at four drug treatment programs and examine staff and client perspectives on factors that facilitated the implementation of these services. Major findings include participants' perceptions that their programs had: (1) at least one change agent on staff who promoted the innovation and delivery of HCV services; (2) at least one administrator or director who encouraged and supported the adoption of these services; and (3) a treatment team that tended to collectively "buy into" and value the HCV service. Ultimately, we found that some drug treatment programs are finding creative and nonresource-intensive ways of delivering HCV services despite the existence of significant barriers. While programs need more funding and resources to overcome these barriers, these findings may prove helpful to other drug treatment programs that would like to offer HCV services to at least some of their clients.

Addressing the HIV-related needs of substance misusers in New York State: the benefits and barriers to implementing a "one-stop shopping" model

Substance misusers are at risk for contracting HIV/AIDS, and substance user treatment programs (SUTPs) are uniquely situated to address their HIV-related needs. In New York State, some SUTPs have implemented a centralized model of substance user treatment and HIV care. We synthesize past literature and use data from semistructured interviews with SUTP staff, analyzed with qualitative software, to describe implementation barriers. These interviews were conducted in 2003-2004 at three SUTPs in Texas and New York as part of a study funded by the National Institutes of Health. With study limitations noted, main implications include a need for a combined medical-addiction treatment philosophy to facilitate multidisciplinary care.

Uptake and delivery of hepatitis C treatment in opiate substitution treatment: perceptions of clients and health professionals

Uptake of treatment for hepatitis C virus (HCV) infection is very low particularly among people who have injected drugs. Opiate substitution treatment (OST) programs, with a high prevalence of people living with HCV, have been a site of growing interest in the delivery of hepatitis C treatment. There has been no exploration of OST clients' and health professionals' perceptions of the barriers and facilitators to uptake and delivery of HCV treatment in OST clinics from personal and organizational perspectives. This qualitative study involved interviews with 27 OST clients in New South Wales and a focus group and interviews with 22 Australian OST health professionals. Clients and health professionals viewed hepatitis C treatment in OST as a 'one-stop-shop' model which could increase access to and uptake of treatment and build on existing relationships of trust between OST client and health professional. Elements of the organizational culture were also noted as barriers to HCV treatment delivery including concerns about confidentiality, lack of discussion of HCV treatment and that HCV treatment was not perceived by clinicians as a legitimate activity of OST clinics. OST client participants also reported a number of personal barriers to engaging with HCV treatment including family responsibilities (and concerns about treatment side effects), unstable housing, comorbidities and perceptions of the unsatisfactory level of treatment efficacy. These findings emphasize the need for future research and delivery of services which addresses the complexity of care and treatment for people in marginalized social circumstances.

Alcohol education provided to opioid treatment program patients: results of a nationwide survey

Alcohol-related problems are especially common among opioid treatment program (OTP) patients, suggesting that educating OTP patients about alcohol and its harmful effects needs to be a priority in OTPs. Using data collected in interviews with a nationwide U.S. sample of OTP directors (N = 200) in 25 states, we identified factors that differentiate OTPs that provided this education to all OTP patients from those that did not. Findings indicate that these factors include (1) providing this education in a greater variety of ways, (2) having a larger percent of staff knowledgeable about alcohol-related issues, (3) having a director who views alcohol issues as a high priority, and (4) having a written OTP policy.

Relapse to Injecting Drug Use: A Hepatitis C Treatment Concern

In light of current initiatives to increase hepatitis C treatment uptake amongst current and former injectors, this article aims to explore the barriers and facilitators to treatment uptake from the patient's perspective. Semistructured interviews were conducted with people living with hepatitis C in Auckland, New Zealand and Sydney, Australia in 2004 and 2006. This article explores in detail one significant issue that has not so far been addressed in the social research literature about decision making for hepatitis C treatment. This is the concern expressed by a quarter of the 34 ex-injecting participants regarding the potential for hepatitis C treatment to cause a relapse to injecting drug use. The connection between hepatitis C treatment and relapse to injecting drug use is supported by a substantial clinical literature. Thus the proposed expansion of hepatitis C treatment into alcohol and other drug settings needs to be undertaken with caution.

Efficacy and safety of peginterferon alfa-2a/ribavirin in methadone maintenance patients: randomized comparison of direct observed therapy and self-administration

BACKGROUND

Adherence to chronic hepatitis C (CHC) treatment may be particularly challenging in methadone maintenance patients. We assessed the safety, tolerability, and efficacy of peginterferon alfa-2a/ribavirin treatment in methadone maintenance patients previously untreated for CHC.

METHODS

Patients were randomized 1:1 to direct observed therapy (DOT) or self-administration (SA) of peginterferon alfa-2a. DOT patients were seen weekly at methadone clinics; SA patients were seen less frequently, only at investigative sites. Genotype 1-infected patients were treated for 48 wk with peginterferon alfa-2a (180 microg/wk)/ribavirin (1,000/1,200 mg/day); genotypes 2- and 3-infected patients were treated for 24 wk with peginterferon alfa-2a (180 microg/wk)/ribavirin (800 mg/day).

RESULTS

Based on defined efficacy stopping rules, 77% (37/48) completed their targeted length of treatment, and 44% (21/48) achieved sustained virologic response (SVR). Two DOT and 3 SA patients were withdrawn for safety reasons and 6 and 9, respectively, for nonsafety reasons. Over 60% and 50% of each group were >80% compliant with the planned cumulative doses of peginterferon alfa-2a and ribavirin, respectively, and over 60% with overall treatment duration. SVR rates were 54% (13/24) for DOT and 33% (8/24) for SA; 23% (3/13) and 38% (6/16), respectively, for genotype 1 and 91% (10/11) and 25% (2/8), respectively, for genotypes 2 and 3. Stepwise logistic regression analysis, showed that DOT (vs SA; OR 3.27, 95% CI 0.90-11.91, P = 0.073) and Caucasian race (vs Other; OR 13.31, 95% CI 1.42-124.71, P = 0.023) were predictors of SVR.

CONCLUSION

Peginterferon alfa-2a/ribavirin can be used safely and successfully in CHC patients receiving methadone maintenance.

The depiction of stigmatization in research about hepatitis C

In the past decade, there has been an increasing emphasis by researchers regarding the stigmatization of people who are hepatitis C positive as they seek health care. Because the vast majority of people with hepatitis C have a history of injection drug use, they are frequently assumed by practitioners to be injection drug users (IDUs), blamed for acquiring the disease, and viewed as irresponsible, immoral, and unworthy. Such stigmatization may cause people who have hepatitis C to avoid testing, treatment and care, as well as to not disclose their hepatitis C or injection drug use to practitioners. The purpose of this paper is to critically examine the representation of stigmatization in 21 published research reports from 1995 to 2006, with a specific focus on how these depictions have shaped the current understanding of interventions to address stigmatization of people with hepatitis C by health care practitioners. We will identify two themes in this literature: (1) hepatitis C-related stigmatization in health care settings arises primarily from practitioners' negative views of injection drug use, and (2) practitioners' negative attitudes toward people with hepatitis C are the result of their lack of awareness and/or information about the disease and/or about injection drug use. We will illustrate that similar themes have informed anti-stigma initiatives in other diseases, notably HIV/AIDS and mental illness, which have had little sustained effect in changing practitioners' behaviour toward the stigmatized population. In conclusion, we will call for research that considers factors beyond the individual practitioner as contributing to the stigmatization of people with hepatitis C, such as social, structural and institutional forces that shape practitioners' interactions with people with hepatitis C in health care settings.

Substance abuse treatment and receipt of liver specialty care among persons coinfected with HIV/HCV who have alcohol problems

We examined the association of substance abuse treatment with access to liver specialty care among 231 persons coinfected with HIV and hepatitis C virus (HCV) with a history of alcohol problems who were recruited and followed up in the HIV-Longitudinal Interrelationships of Viruses and Ethanol cohort study from 2001 to 2004. Variables regarding demographics, substance use, health service use, clinical variables, and substance abuse treatment were from a standardized research questionnaire administered biannually. We defined substance abuse treatment services as any of the following in the previous 6 months: 12 weeks in a halfway house or residential facility, 12 visits to a substance abuse counselor or mental health professional, day treatment for at least 30 days, or any participation in a methadone maintenance program. Liver specialty care was defined as a visit to a liver doctor, a hepatologist, or a specialist in treating hepatitis C in the past 6 months. At study entry, most of the 231 subjects (89%, n = 205) had seen a primary care physician, 50% had been exposed to substance abuse treatment, and 50 subjects (22%) had received liver specialty care. An additional 33 subjects (14%) reported receiving liver specialty care during the follow-up period. In the multivariable model, we observed a clinically important although not statistically significant association between having been in substance abuse treatment and receiving liver specialty care (adjusted odds ratio = 1.38; 95% confidence interval = 0.9-2.11). Substance abuse treatment systems should give attention to the need of patients to receive care for prevalent treatable diseases such as HIV/HCV coinfection and facilitate its medical care to improve the quality of care for individuals with substance use disorders. The data illustrate the need for clinical care models that give explicit attention to the coordination of primary health care with addiction and hepatitis C specialty care while providing ongoing support to engage and retain these patients with complex health needs.