Chronic hepatitis C and antiviral treatment regimens: where can psychology contribute?

Quality of life in patients with hepatitis C. Importance of treatment

Chronic hepatitis C virus infection is a systemic disease that impairs the quality of life of affected individuals. The impairment is not only due to physiological factors, such as the non-hepatic manifestations of the disease or certain symptoms such as fatigue, weakness and nausea, but is also due to the substantial psychological impact of the infection. Treatment with direct-acting antivirals (DAA) has been demonstrated to substantially improve patient's quality of life, starting in the initial phases. Supplement information: This article is part of a supplement entitled "The value of simplicity in hepatitis C treatment", which is sponsored by Gilead. © 2019 Elsevier España, S.L.U. All rights reserved.

Enablers and barriers for the provision of community-based HCV treatment: A case study of a real-world practice

BACKGROUND

Although the availability of fully funded direct-acting antivirals (DAAs) and the eligibility of primary care providers (PCPs) to provide hepatitis C virus (HCV) have removed barriers related to access to hospital-based HCV treatment in Australia, there are still many barriers to the provision of HCV treatment in community settings. There is a lack of knowledge regarding the barriers to, and enablers of HCV treatment in community settings in Australia. This study aimed to identify barriers and enablers for the provision of community-based HCV treatment.

METHODS

This study was a part of a mixed-method case study of the Cure-It programme. The programme was studied to better understand barriers and enablers experienced by stakeholders of such programmes. The programme is delivered through the Prince Charles Hospital in Brisbane, Australia, and aimed to improve access to HCV treatment in community settings. Data were collected using semi-structured interviews with 12 healthcare providers and nine patients between July and December 2018. Purposive sampling was used to ensure diverse views were captured. The interview transcripts were analysed using inductive thematic analysis.

RESULTS

Ease of access to specialist support, easy and high value treatment, co-location with or providing other services and motivated patients enabled PCPs to be engaged with the Cure-It programme. Several interconnected factors related to patients' characteristics and health system acted synergistically to enable patients to initiate and complete treatment. These included a desire to remove HCV as a source of shame, having children, awareness of HCV consequences, access to DAAs for free, ease of access to general practices and drug and alcohol services, and access to a safe and enabling environment. The identified barriers were interconnected at the levels of patients, PCPs and primary care systems and acted synergistically to prevent patients and PCPs from becoming engaged with HCV treatment. PCPs' related barriers included a lack of knowledge, their perception of HCV as a specialist area and of patients with HCV as 'hard to manage' patients along with the practice preferences and priorities. Patients' related barriers included their socioeconomic characteristics, internalized stigma, perception of not being sick and lack of knowledge. Additionally, the unavailability of support for patients and existence of stigma in primary health care, along with poor communication between the hospital and primary care system, and the unavailability of FibroScan^® in primary care discouraged PCPs and patients engagement specifically with the provision of community-based HCV treatment.

CONCLUSION

Various strategies are needed to improve PCPs and patients' knowledge and awareness of HCV treatment. Training and support for PCPs need to be easy to access and should cover both clinical and social aspect of HCV. Connecting PCPs to other related services may improve PCPs' and patients' engagement with HCV treatment.

Life projects: the transformative potential of direct-acting antiviral treatment for hepatitis C among people who inject drugs

BACKGROUND AND OBJECTIVES

People who inject drugs (PWID) are disproportionately affected by chronic hepatitis C (HCV) in high-income countries. The advent of direct-acting antivirals (DAAs) makes treatment of this underserved population more possible than ever. The dearth of programs adapted to the needs of PWID and stigma associated with drug use and chronic HCV pose significant barriers to the effective uptake of treatment among this population. We employed "life projects" as a conceptual framework to examine the social incentives of PWID being treated for HCV. This study advances the existing literature on the transformative potential of HCV treatment among PWID, explores how these transformations may affect treatment success, and discusses implications for decisions around whether and when to treat PWID.

METHODS

We conducted in-depth interviews with participants of a pilot clinical trial testing the effective delivery of DAA treatment to PWID within two healthcare for the homeless clinic settings - one group receiving opioid agonist therapy (OAT) and another group frequenting a needle and syringe exchange program (NSP). A purposive sample of 27 participants was selected based on place of care. Interviews were transcribed, coded, and analysed for patterns using a priori domains and emergent themes.

RESULTS

Participants in both treatment groups described significant life projects that motivated them to complete HCV treatment. These projects included social redemption, strengthening of relationships, pursuit of abstinence from substance use, and harm reduction. These themes were consistent between treatment groups, though more participants in the syringe exchange group relied on harm reduction than on pursuing abstinence to prevent reinfection after achieving virologic cure.

CONCLUSION

Understanding the incentives that propel PWID to complete HCV treatment could help to enhance treatment uptake and adherence through dedicated programs that address current barriers to care.

Experiences with interferon-free hepatitis C therapies: addressing barriers to adherence and optimizing treatment outcomes

BACKGROUND

Millions of Americans are living with hepatitis C, the leading cause of liver disease in the United States. Medication treatment can cure hepatitis C. We sought to understand factors that contribute to hepatitis C treatment completion from the perspectives of patients and providers.

METHODS

We conducted semi-structured interviews at three Veterans Affairs Medical Centers. Patients were asked about their experiences with hepatitis C treatments and perspectives on care. Providers were asked about observations regarding patient responses to medications and perspectives about factors resulting in treatment completion. Transcripts were analyzed using a grounded thematic approach-an inductive analysis that lets themes emerge from the data.

RESULTS

Contributors to treatment completion included Experience with Older Treatments, Hope for Improvement, Symptom Relief, Tailored Organized Routines, and Positive Patient-Provider Relationship. Corresponding barriers also emerged, including pill burden and skepticism about treatment effectiveness and safety.

CONCLUSION

Despite the improved side-effect profile of newer HCV medications, multiple barriers to treatment completion remain. However, providers and patients were able to identify avenues for addressing such barriers.

Socioeconomic Vulnerability to Depressive Symptoms in Patients with Chronic Hepatitis B

Depression is considered one of the most prevalent psychiatric disorders among patients with hepatitis B virus (HBV)-related liver disease and has adverse effects on the disease progression. However, there is a scarcity of studies contributing to the assessement of depression in hepatitis B patients. There is also little research into risk factors, particularly underlying socio-economic factors in Vietnam where the prevalence of hepatitis B is high. This study aimed to examine depression and identify whether differences in socio-economic status is related to the level of depression amongst chronic hepatitis B patients. A cross-sectional study was conducted on 298 patients with chronic hepatitis B at The Chronic Hepatitis Clinic in the Viet-Tiep Hospital, Hai Phong, Vietnam. The Patient Health Questionnaire-9 (PHQ-9) and EuroQol-5 dimensions-5 levels (EQ-5D-5L) were used to assess the severity of depression and health-related quality of life (HRQOL). Of chronic hepatitis B patients, 37.5% experienced depressive symptoms and most of them suffered minimal depressive symptoms (31.4%). According to the result of the multivariate logistic regression model, we found that higher age, lower income level, unemployement, living with spouse/partners were positively associated with having depression. Furthermore, having physical health problems and lower health-related quality of life were also related to a higher risk of depression. We recommend family support, financial support and active participation in consultation should be conducted during treatment to improve the quality of life and the emotional state of HBV patients.

Impact of treatment with direct-acting antivirals on anxiety and depression in chronic hepatitis C

BACKGROUND AND AIM

Treatment of hepatitis C with direct-acting antiviral agents (DAA) has few side effects. Although pivotal studies suggested that DAA were safe in patients with psychiatric diseases who could not be treated with previous antiviral therapies, their effects on anxiety and depression have not yet been analysed in clinical practice. The aim of our study was to analyse anxiety and depression in the setting of DAA treatment in a clinical practice series.

METHODS

All patients starting DAA treatment between November 1, 2014 and October 31, 2015 were eligible. Patients completed the Hospital Anxiety and Depression scale at different times during treatment. The results were plotted on line graphs and evaluated using a linear regression model with repeated measures.

RESULTS

One hundred and forty-five patients were included (11% with major psychiatric disorders; 32% on psychiatric treatment). Sustained virologic response (SVR) was achieved in 97.3% of cases. Anxiety and depression measures did not differ between time points. No differences between patients on psychiatric treatment or with advanced fibrosis or cirrhosis were found at any time point analysed.

CONCLUSION

DAA treatment had no impact on anxiety or depression during or after chronic hepatitis C infection treatment, even in high-risk patients with major psychiatric disorders.

A comprehensive assessment of patient reported symptom burden, medical comorbidities, and functional well being in patients initiating direct acting antiviral therapy for chronic hepatitis C: Results from a large US multi-center observational study

BACKGROUND

Symptom burden, medical comorbidities, and functional well-being of patients with chronic hepatitis C virus (HCV) initiating direct acting antiviral (DAA) therapy in real-world clinical settings are not known. We characterized these patient-reported outcomes (PROs) among HCV-infected patients and explored associations with sociodemographic, liver disease, and psychiatric/substance abuse variables.

METHODS AND FINDINGS

PROP UP is a large US multicenter observational study that enrolled 1,600 patients with chronic HCV in 2016-2017. Data collected prior to initiating DAA therapy assessed the following PROs: number of medical comorbidities; neuropsychiatric, somatic, gastrointestinal symptoms (PROMIS surveys); overall symptom burden (Memorial Symptom Assessment Scale); and functional well-being (HCV-PRO). Candidate predictors included liver disease markers and patient-reported sociodemographic, psychiatric, and alcohol/drug use features. Predictive models were explored using a random selection of 700 participants; models were then validated with data from the remaining 900 participants. The cohort was 55% male, 39% non-white, 48% had cirrhosis (12% with advanced cirrhosis); 52% were disabled or unemployed; 63% were on public health insurance or uninsured; and over 40% had markers of psychiatric illness. The median number of medical comorbidities was 4 (range: 0-15), with sleep disorders, chronic pain, diabetes, joint pain and muscle aches being present in 20-50%. Fatigue, sleep disturbance, pain and neuropsychiatric symptoms were present in over 60% and gastrointestinal symptoms in 40-50%. In multivariable validation models, the strongest and most frequent predictors of worse PROs were disability, unemployment, and use of psychiatric medications, while liver markers generally were not.

CONCLUSIONS

This large multi-center cohort study provides a comprehensive and contemporary assessment of the symptom burden and comorbid medical conditions in patients with HCV treated in real world settings. Pain, fatigue, and sleep disturbance were common and often severe. Sociodemographic and psychiatric markers were the most robust predictors of PROs. Future research that includes a rapidly changing population of HCV-infected individuals needs to evaluate how DAA therapy affects PROs and elucidate which symptoms resolve with viral eradication.

TRIAL REGISTRATION

(Clinicaltrial.gov: NCT02601820).

Novel patient-reported outcomes (PROs) used in a pilot and feasibility study of a Cognitive Behavioral Coping Skills (CBCS) group intervention for patients with chronic hepatitis C

Background

Patients with chronic hepatitis C virus (HCV) experience reduced quality of life, HCV-associated symptoms, comorbid conditions, and treatment side effects. The Cognitive Behavioral Coping Skills group intervention for HCV (CBCS-HCV) was developed using the Stage Model of Behavioral Therapies Research. Intervention development and initial feasibility testing in wave 1 participants were previously reported. The primary objective of this subsequent pilot with wave 2–3 participants was to investigate the effect sizes and clinical improvements in patient-reported outcomes (PROs) and trial and intervention feasibility.

Methods

A pilot feasibility two-arm randomized controlled trial using block randomization to assign patients to CBCS-HCV or standard of care was conducted. Participants attended nine group sessions: four before HCV treatment and five during treatment. PRO data were collected at five time points: before the CBCS intervention (T1), immediately before HCV treatment (T2), during HCV treatment (T3, T4), and 1 month post-intervention/post-HCV treatment (T5). PROs included quality of life, perceived stress, HCV symptoms, and medication adherence. Cohen’s d was used to estimate within-group changes (WGCs) and between-group differences (BGDs), with d > 0.35 considered potentially clinically significant. Potential mechanisms of change were also evaluated.

Results

Several WGCs and BGDs (ES > .35) suggest that the CBCS-HCV may promote improvements in PROs: psychological stress, depression, anger, anxiety, sleep disturbance, and fatigue. The intervention did not appear to impact social functioning, pain, or medication adherence. Cognitive behavioral skills and group therapy dynamics, but not HCV treatment self-efficacy, may mediate improvements in PROs. Most aspects of the study trial, including intervention implementation, were feasible. Patient acceptance and retention were exceptional. The greatest feasibility challenge was due to patients needing to initiate treatment as soon as medications were obtained, but often before a full block could be created in wave 3. Challenges with PRO data collection were identified that will be resolved in future studies.

Conclusions

The CBCS-HCV intervention warrants future investigation in an efficacy trial to evaluate improvements in selected PROs. The next step is to pilot test the CBCS-HCV delivered via telehealth to an expanded pool of patients to reduce patient barriers, hone technical logistics, and improve intervention reach and effectiveness.

Trial registration

NCT03057236 Retrospectively registered.

Integrating Care for Patients With Chronic Liver Disease and Mental Health and Substance Use Disorders

Mental health disorders are common among patients with chronic liver disease, and current literature supports the use of better screening and providing integrated or multidisciplinary care where possible.

Development and Pilot-Testing of a Cognitive Behavioral Coping Skills Group Intervention for Patients with Chronic Hepatitis C

Psychosocial interventions for patients with chronic hepatitis C viral (HCV) infection are needed to attenuate the impact of extrahepatic symptoms, comorbid conditions, and treatment side effects on HCV health outcomes. We adapted empirically-supported interventions for similar patient populations to develop a Cognitive Behavioral Coping Skills group intervention for HCV patients (CBCS-HCV) undergoing treatment. The objectives of this paper are to describe the research activities associated with CBCS-HCV development and pilot testing, including: (1) formative work leading to intervention development; (2) preliminary study protocol; and (3) pilot feasibility testing of the intervention and study design. Formative work included a literature review, qualitative interviews, and adaption, development, and review of study materials. A preliminary study protocol is described. We evaluate the feasibility of conducting a randomized controlled trial (RCT) of the CBCS-HCV with 12 study participants in Wave 1 testing to examine: (a) feasibility of intervention delivery; (b) patient acceptability; (c) recruitment, enrollment, retention; (d) feasibility of conducting a RCT; (d) therapist protocol fidelity; and (e) feasibility of data collection. Numerous lessons were learned. We found very high rates of data collection, participant attendance, engagement, retention and acceptability, and therapist protocol fidelity. We conclude that many aspects of the CBCS-HCV intervention and study protocol were highly feasible. The greatest challenge during this Wave 1 pilot study was efficiency of participant enrollment due to changes in standard of care treatment. These findings informed two additional waves of pilot testing to examine effect sizes and potential improvements in clinical outcomes, with results forthcoming.

Financial Incentives for Adherence to Hepatitis C Virus Clinical Care and Treatment: A Randomized Trial of Two Strategies

BACKGROUND

Although rates of sustained virologic response (SVR) after hepatitis C virus (HCV) treatment with direct-acting antivirals (DAAs) surpass 90% in trials and some more "real world" settings, some patients, such as those with substance use disorders, will be challenged to adhere to HCV care.

METHODS

To assess the feasibility of 2 strategies for financially incentivizing adherence to HCV care, patients with a substance use history prescribed 12 weeks of a sofosbuvir-containing regimen were randomized to either fixed or lottery-based monetary incentives for attending clinic appointments, pill count adherence >90%, and SVR achievement. Electronic medication monitoring provided an objective measure of DAA adherence.

RESULTS

Fifty-nine participants were randomized to the lottery (n = 31) or fixed-incentive (n = 28) arms. All 31 (100%) in the lottery arm and 24 of 28 (86%) in the fixed arm completed 12 weeks of therapy. By intent-to-treat, 93% in the lottery arm and 92% in the fixed arm achieved SVR (estimated difference: 0.5%; 95% confidence interval, -17.5 to 18.8). Overall, 92% of scheduled visits were attended without significant differences between arms. The mean adherence ratio (days with ≥1 bottle opening:monitored days) was 0.91 for lottery and 0.92 for fixed arms.

CONCLUSIONS

In this pilot, fixed- and lottery-based financial incentives were successfully implemented and accepted by patients with a substance use history. High levels of HCV therapy and care adherence, as well as rates of SVR, were observed. Financial incentives may be useful to support treatment adherence in patients with substance use disorders and should be tested in a larger, randomized, controlled trial.

[Health-Related Quality of Life in patients with hepatitis C treated with dual and triple therapy]

OBJECTIVE

Comparing Health-Related Quality of Life (HRQoL) scores in patients with chronic hepatitis C undergoing double and triple antiviral therapy and analyzing possible factors related to HRQoL.

METHOD

HRQoL was assessed using the Short Form 36 and Chronic Liver Disease Questionnaire, which were applied at baseline and at weeks 4, 12 and 16 of treatment to 32 patients divided into two groups: double therapy with pegylated interferon (IFN-PEG) and ribavirin, and triple therapy with PEG-IFN, ribavirin and telaprevir.

RESULTS

The reduction of HRQoL was greater in patients receiving triple therapy compared to those treated with two drugs, the most critical time is at 12 weeks in both groups. After removal of telaprevir, the triple therapy group significantly improved their HRQoL scores. Anxiety and depression before treatment, employment status and race are significantly related to diminished HRQoL.

CONCLUSION

Patients undergoing double and triple therapy have diminished HRQoL indexes, but the addition of telaprevir chooses a more significant decrease.

Retrospective Analysis of the Medication Utilization and Clinical Outcomes of Patients Treated with Various Regimens for Hepatitis C Infection

BACKGROUND

The hepatitis C virus (HCV) is the most common chronic blood-borne infection and the leading cause of liver transplantation in the United States. There are approximately 3.2 million people currently infected with HCV in the United States. In late 2013, the introduction of sofosbuvir and simeprevir represented a critical advancement in the treatment of HCV by improving sustained virologic response (SVR) rates.

PURPOSE

The purpose of this study was to evaluate medication utilization and clinical outcomes of patients with HCV who were treated with any Food and Drug Administration-approved combination of ribavirin, peginterferon products, simeprevir, and sofosbuvir.

METHODS

Prescription records and clinical assessment forms of patients who started HCV therapy and were eligible for SVR between January 1, 2014, and December 31, 2014, were retrospectively reviewed. Data collection included patient demographics, genotype, SVR, patient-reported adverse events, discontinuations, and adherence markers.

RESULTS

A total of 367 eligible patients were identified who had initiated treatment during the study period. Genotype 1 was the most common genotype, and an overall SVR rate of 86.9% was observed. Results were similar to those seen in phase III clinical trials. In addition, adverse events of these medications were more tolerable, and discontinuation rates were lower than with previous therapies.

Hepatitis B Stigma and Knowledge among Vietnamese in Ho Chi Minh City and Chicago

Stigma regarding viral hepatitis and liver disease has psychological and social consequences including causing negative self-image, disrupting relationships, and providing a barrier to prevention, testing, and treatment. The aim of this study was to characterize and compare HBV knowledge and stigma in Vietnamese in Ho Chi Minh City and Chicago and to begin to evaluate the cultural context of HBV stigma. Methods. A written survey including knowledge questions and a validated HBV stigma questionnaire was distributed to Vietnamese in Ho Chi Minh City and Chicago. 842 surveys from Ho Chi Minh City and 170 from Chicago were analyzed. Results. Vietnamese living in Chicago had better understanding of HBV transmission and that HBV can cause chronic infection and liver cancer. Vietnamese in Chicago had higher stigma scores on a broad range of items including guilt and shame about HBV and were more likely to feel that persons with HBV can bring harm to others and should be isolated. Conclusions. Vietnamese in Ho Chi Minh City and Chicago have knowledge deficits about HBV, particularly regarding modes of transmission. Persons in Ho Chi Minh City expressed lower levels of HBV stigma than Vietnamese living in Chicago, likely reflecting changing cultural attitudes in Vietnam. Culturally appropriate educational initiatives are needed to address the problem of HBV stigma.

"Hepatitis C treatment turned me around:" Psychological and behavioral transformation related to hepatitis C treatment

BACKGROUND

Hepatitis C (HCV) is a significant public health problem that primarily affects current and former substance users. However, individuals with a history of substance use are less likely to have access to or engage in HCV care. Psychological and behavioral barriers prevent many HCV-infected individuals from initiating or engaging in HCV treatment. This study aimed to investigate the psychological and behavioral experiences of current and former substance users receiving HCV treatment within a combined methadone and primary care clinic in the United States.

METHODS

We conducted 31 semi-structured qualitative interviews with opioid-dependent adults enrolled in an integrated HCV treatment program within a methadone maintenance clinic in the Bronx, NY. We used thematic analysis, informed by grounded theory, and inquired about perceptions of HCV before and after initiating HCV treatment, reasons for initiating HCV treatment, and the decision to participate in individual versus group HCV treatment.

RESULTS

Participants described psychological and behavioral transformation over the course of HCV treatment. These included reductions in internalized stigma and shame related to HCV and addiction, increases in HCV disclosure and self-care, reductions in substance use, and new desire to help others who are living with HCV.

CONCLUSIONS

Integrating HCV treatment with methadone maintenance has the potential to create psychological and behavioral transformations among substance using adults, including reductions in HCV- and addiction-related shame and improvements in overall self-care.

Treatment with ledipasvir and sofosbuvir improves patient-reported outcomes: Results from the ION-1, -2, and -3 clinical trials

Treatment with interferon (IFN) and ribavirin (RBV) significantly impairs quality of life and other patient-reported outcomes (PROs). Patient experience with IFN- and RBV-free anti-HCV (hepatitis C virus) regimens has not been reported. We assessed PROs in patients treated with ledipasvir and sofosbuvir (LDV/SOF) with and without RBV. Four different PRO questionnaires were administered at baseline, during, and post-treatment in HCV genotype 1 patients treated with LDV/SOF±RBV (ION-1, -2, and -3). A total of 1,952 patients were enrolled to be treated for 8 (N = 431), 12 (N = 867), or 24 weeks (N = 654) with LDV/SOF (N = 1,080) or LDV/SOF+RBV (N = 872). Baseline demographics and psychiatric disorders were similar between treatment groups (all P > 0.05). Patients receiving LDV/SOF regimens showed significant improvement of PRO scores during treatment (up to +7.4%, +7.0%, and +6.7% on a normalized 0%-100% scale in the 8-, 12-, and 24-week-long treatment groups, respectively (all P < 0.0001). These PRO improvements coincided with early viral suppression after 2 weeks of treatment and maximized by the end of treatment. On the other hand, during treatment with LDV/SOF+RBV, PRO scores declined (up to -5.5% regardless of treatment duration; P < 0.0001). Receiving RBV was an independent predictor of PRO impairment in multivariate analysis (beta up to -5.9%; P < 0.0001). Patients who achieved sustained virological response at 12 weeks showed significant improvement of their PROs post-treatment (up to +8.3%; P < 0.0001).

CONCLUSION

IFN- and RBV-free regimens with LDV/SOF result in early HCV suppression with simultaneous improvement in PROs that continued throughout the duration of treatment and post-treatment.

Predictors of poor mental and physical health status among patients with chronic hepatitis C infection: the Chronic Hepatitis Cohort Study (CHeCS)

Our objective was to assess the extent and risk factors for depression and poor physical health among patients with chronic hepatitis C virus (HCV) infection. We surveyed HCV-infected patients seen at four large healthcare systems participating in the Chronic Hepatitis Cohort Study (CHeCS). Survey data included demographics, depression and physical health measures, substance use history, current social support, recent stressor exposures, and, from the electronic medical record, treatment history, and Charlson Comorbidity Index scores. There were 4,781 respondents, who were a mean of 56.7 years old, 71% White, and 57% male. Altogether, 51.4% reported past injection drug use, 33.9% were current smokers, and 17.7% had abused alcohol in the previous year. Additionally, 47.4% had been previously treated for HCV and 14.8% had a 12-week sustained viral response (SVR) following HCV therapy. Overall, 29.7% of patients met criteria for current depression and 24.6% were in poor physical health. In multivariate analyses, significant predictors of depression and poor health included: male gender (versus female, odds ratios [ORs], 0.70 and 0.81), Black race (versus white, ORs, 0.60 and 0.61), having education less than high school (versus college, ORs, 1.81 and 1.54), being employed (versus not, ORs, 0.36 and 0.25), having high life stressors (versus low, ORs, 2.44 and 1.64), having low social support (versus high, ORs=2.78 and 1.40), and having high Charlson scores (versus none, ORs=1.58 and 2.12). Achieving a 12-week SVR was found to be protective for depression.

CONCLUSION

This large survey of U.S. HCV patients indicates the extent of adverse health behaviors and mental and physical comorbidities among these patients.

Self-efficacy and adherence to antiviral treatment for chronic hepatitis C

GOALS

To investigate the role of self-efficacy (SE) during hepatitis C virus (HCV) treatment.

BACKGROUND

Adherence to chronic HCV treatment is critical. SE is an important predictor of medication adherence in a number of chronic disease populations and medication regimens, but its role during HCV treatment remains unknown.

STUDY

Data from the prospective Virahep-C study were analyzed to examine relationships between SE and patient-driven deviations (ie, missed doses measured using electronic pill caps, and nonpersistence) from adherence to HCV antiviral treatment. SE was measured using the 17-item HCV Treatment Self-Efficacy scale. This measure provides a global estimate of a patient's confidence to undergo and adhere to HCV treatment, and can estimate SE in 4 underlying domains: communication SE (ie, confidence to communicate with health care provider), physical coping SE (ie, confidence to cope with physical side effects), psychological coping SE (ie, confidence to cope with psychiatric side effects), and treatment adherence SE (ie, confidence to take all medications as prescribed and attend doctor visits). Generalized estimating equations and Cox proportional hazards models were used to assess associations between SE and missed doses and nonpersistence, respectively.

RESULTS

SE was associated with being in a relationship, educated, privately insured, and less depressed. Higher communication SE at TW24 reduced the risk of missed doses between TW24 and TW48. Higher baseline treatment adherence SE reduced the likelihood of nonpersistence between baseline and TW24.

CONCLUSIONS

SE's relationship to HCV treatment adherence has promising clinical and research implications.

Psychological, lifestyle and social predictors of hepatitis C treatment response: a systematic review

BACKGROUND

To increase cure rates for Hepatitis C, barriers to treatment adherence and completion must be identified and overcome.

AIMS

This study systematically reviewed evidence on the psychological, lifestyle and social determinants of achieving viral eradication with antiviral therapy.

METHODS

An electronic search strategy was used to identify relevant studies that examined psychological, lifestyle and social factors related to achieving a sustained virological response (SVR).

RESULTS

Thirty-four studies that matched our criteria were identified. Of the factors that predict response to treatment, Asian ethnicity was an independent predictor of SVR. We found an indirect relationship between diet and SVR, with non-responders to treatment consuming more polyunsaturated fatty acids, fats and carbohydrates than those who attained SVR. The effect of alcohol consumption relied on the amount consumed; fewer than 30 grams daily had no effect on SVR, whereas >70 grams daily had an adverse impact on a patient's ability to achieve SVR, with termination rates up to 44% in those who drank >2 drinks a day. Patients with psychiatric illnesses had comparable SVR rates to controls if they continued psychological therapy (average 42%), although discontinuation rates were high with 11 studies reporting rates from 14 to 48%.

CONCLUSIONS

There are major gaps in current knowledge of the impact of variables such as diet, exercise, attitudes and coping skills on cure rates in chronic Hepatitis C. Those who drink limited amounts of alcohol or have psychiatric disorders should be offered treatment for their disease, with adjunctive education and support to improve treatment completion.