1
|
Snow K, MacLachlan JH, Rowe S, Higgins N, Cowie BC. The cascade of care for hepatitis C in Victoria, Australia: a data linkage cohort study. Intern Med J 2024; 54:1146-1154. [PMID: 38504432 DOI: 10.1111/imj.16361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 02/01/2024] [Indexed: 03/21/2024]
Abstract
BACKGROUND Highly effective hepatitis C therapies are available in Australia. However, people living with hepatitis C face various barriers to accessing care and treatment. AIMS To identify gaps in the cascade of care for hepatitis C and generate estimates of the number living with untreated infection according to population group, using a representative longitudinal study population. METHODS We linked hepatitis C notification data from Victoria to national pathology, prescribing and death registry data. We assessed receipt of key clinical services in a large cohort who tested positive for hepatitis C from 1 January 2000 to 31 December 2016, with follow-up to 30 June 2018. We estimated the number still living with hepatitis C, adjusting for spontaneous clearance and mortality. RESULTS The cohort comprised 45 391 people positive for hepatitis C. Of these, 13 346 (29%) received treatment and an estimated 28% (95% confidence interval (CI): 26-30%) were still living with chronic infection at 30 June 2018, with the remainder still living following spontaneous clearance (30%, 95% CI: 29-32%) or having died (12%, 95% CI: 12-12%). Half (50%) of those still living with hepatitis C were born from 1965 to 1980, and 74% first tested positive before 2011. CONCLUSIONS Despite an enabling policy environment and subsidised therapy, many people in this cohort were not treated. Increased measures may be needed to engage people in care, including those who acquired hepatitis C more than 10 years ago.
Collapse
Affiliation(s)
- Kathryn Snow
- WHO Collaborating Centre for Viral Hepatitis, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Jennifer H MacLachlan
- WHO Collaborating Centre for Viral Hepatitis, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Department of Infectious Diseases, University of Melbourne, Melbourne, Victoria, Australia
| | - Stacey Rowe
- Victorian Government Department of Health, Melbourne, Victoria, Australia
- School of Population Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Nasra Higgins
- Victorian Government Department of Health, Melbourne, Victoria, Australia
| | - Benjamin C Cowie
- WHO Collaborating Centre for Viral Hepatitis, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Department of Infectious Diseases, University of Melbourne, Melbourne, Victoria, Australia
- Victorian Infectious Diseases Service, Royal Melbourne Hospital, Melbourne, Victoria, Australia
| |
Collapse
|
2
|
Gofton C, Bondezi K, Kotze B, McKee K, Yesudoss A, McCaughan G, George J. Micro-elimination of chronic hepatitis C virus in mental health settings: A prospective multicentre pragmatic trial. Drug Alcohol Rev 2024; 43:1247-1255. [PMID: 38773898 DOI: 10.1111/dar.13854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 03/24/2024] [Accepted: 03/27/2024] [Indexed: 05/24/2024]
Abstract
INTRODUCTION Hepatitis C virus (HCV) prevalence is high in the mental health population. We sought to evaluate testing and treatment uptake for HCV following the implementation of a universal nurse led study in inpatient and outpatient mental health populations. METHODS From January 2018 to December 2020, we screened mental health inpatients (n = 322) and community mental health patients (n = 615) for HCV with either specialist hepatology nurses or mental health nurses (mental health nurse). RESULTS 75.5% (464/615) of community patients and 100% (322/322) of inpatients consented to screening, with an HCV antibody-positive prevalence of 12.7% (59/464) in community patients and 19.6% (63/322) in inpatients. RNA detectable prevalence was 4.0% (22/464) and 7.5% (24/322), respectively. Community patients who were screened by specialist hepatology nurses were more likely to consent to screening (94.4% vs. 45.7%, p < 0.001) but had lower proportion of HCV antibody (10.5% vs. 20.3%, p < 0.001) and RNA detectable (4.0% vs. 7.5%, p = 0.018) when compared to mental health nurse screening. Engagement with treatment was 27.0% of community mental health patients and 45.8% of mental health inpatients undergoing treatment. All patients undergoing treatment and underwent sustained viral response (SVR) testing achieved SVR. DISCUSSION AND CONCLUSIONS Universal screening of HCV using a nurse-led model has high rates of success in mental health patients with high proportions undergoing screening, with no reduction in the rates of SVR achieved with DAA therapy compared to the general population. Further work is needed to bridge the gap between identification of HCV and treatment among mental health patients.
Collapse
Affiliation(s)
- Cameron Gofton
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and The University of Sydney, Sydney, New South Wales, Australia
- Department of Gastroenterology and Hepatology, Royal North Shore Hospital, Sydney, New South Wales, Australia
- Department of Gastroenterology and Hepatology, Bankstown-Lidcombe Hospital, Sydney, New South Wales, Australia
| | - Kindness Bondezi
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and The University of Sydney, Sydney, New South Wales, Australia
| | - Beth Kotze
- Sydney Local Health District, Sydney, New South Wales, Australia
| | - Kristen McKee
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and The University of Sydney, Sydney, New South Wales, Australia
| | - Antoni Yesudoss
- Western Sydney Local Health District, Sydney, New South Wales, Australia
| | - Geoff McCaughan
- AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney Local Health District, Centenary Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Jacob George
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and The University of Sydney, Sydney, New South Wales, Australia
| |
Collapse
|
3
|
Marshall AD, Willing AR, Kairouz A, Cunningham EB, Wheeler A, O'Brien N, Perera V, Ward JW, Hiebert L, Degenhardt L, Hajarizadeh B, Colledge S, Hickman M, Jawad D, Lazarus JV, Matthews GV, Scheibe A, Vickerman P, Dore GJ, Grebely J. Direct-acting antiviral therapies for hepatitis C infection: global registration, reimbursement, and restrictions. Lancet Gastroenterol Hepatol 2024; 9:366-382. [PMID: 38367631 DOI: 10.1016/s2468-1253(23)00335-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/25/2023] [Accepted: 10/02/2023] [Indexed: 02/19/2024]
Abstract
Direct-acting antivirals (DAAs) for hepatitis C virus (HCV) infection have delivered high response rates (>95%) and simplified the management of HCV treatment, permitting non-specialists to manage patients without advanced liver disease. We collected and reviewed global data on the registration and reimbursement (government subsidised) of HCV therapies, including restrictions on reimbursement. Primary data collection occurred between Nov 15, 2021, and July 24, 2023, through the assistance of a global network of 166 HCV experts. We retrieved data for 160 (77%) of 209 countries and juristrictions. By mid-2023, 145 (91%) countries had registered at least one of the following DAA therapies: sofosbuvir-velpatasvir, sofosbuvir-velpatasvir-voxilaprevir, glecaprevir-pibrentasvir, sofosbuvir-daclatasvir, or sofosbuvir. 109 (68%) countries reimbursed at least one DAA therapy. Among 102 low-income and middle-income countries (LMICs), 89 (87%) had registered at least one HCV DAA therapy and 53 (52%) reimbursed at least one DAA therapy. Among all countries with DAA therapy reimbursement (n=109), 66 (61%) required specialist prescribing, eight (7%) had retreatment restrictions, seven (6%) had an illicit drug use restriction, five (5%) had an alcohol use restriction, and three (3%) had liver disease restrictions. Global access to DAA reimbursement remains uneven, with LMICs having comparatively low reimbursement compared with high-income countries. To meet WHO goals for HCV elimination, efforts should be made to assist countries, particularly LMICs, to increase access to DAA reimbursement and remove reimbursement restrictions-especially prescriber-type restrictions-to ensure universal access.
Collapse
Affiliation(s)
- Alison D Marshall
- Viral Hepatitis Clinical Research Program, The Kirby Institute, University of New South Wales, Sydney, NSW, Australia; Centre for Social Research in Health, University of New South Wales, Sydney, NSW, Australia.
| | - Alex R Willing
- Viral Hepatitis Clinical Research Program, The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - Abe Kairouz
- Viral Hepatitis Clinical Research Program, The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - Evan B Cunningham
- Viral Hepatitis Clinical Research Program, The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - Alice Wheeler
- Viral Hepatitis Clinical Research Program, The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | | | | | - John W Ward
- Coalition for Global Hepatitis Elimination, Task Force for Global Health, Decatur, GA, USA
| | - Lindsey Hiebert
- Coalition for Global Hepatitis Elimination, Task Force for Global Health, Decatur, GA, USA
| | - Louisa Degenhardt
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Behzad Hajarizadeh
- Viral Hepatitis Clinical Research Program, The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - Samantha Colledge
- National Drug Research Institute, Curtin University, Perth, WA, Australia
| | - Matthew Hickman
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Danielle Jawad
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Jeffrey V Lazarus
- Barcelona Institute for Global Health (IS Global), Hospital Clinic, University of Barcelona, Barcelona, Spain; CUNY Graduate School of Public Health and Health Policy, New York, NY, USA
| | - Gail V Matthews
- Therapeutic and Vaccine Research Program, The Kirby Institute, University of New South Wales, Sydney, NSW, Australia; St Vincent's Hospital, Darlinghurst, Sydney, NSW, Australia
| | - Andrew Scheibe
- TB HIV Care, Cape Town, South Africa; Community Orientated, Primary Care Research Unit, Department of Family Medicine, University of Pretoria, Pretoria, South Africa
| | - Peter Vickerman
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Gregory J Dore
- Viral Hepatitis Clinical Research Program, The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - Jason Grebely
- Viral Hepatitis Clinical Research Program, The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| |
Collapse
|
4
|
Draper B, Yee WL, Bowring A, Naing W, Kyi KP, Htay H, Howell J, Hellard M, Pedrana A. Patients' experience of accessing hepatitis C treatment through the Myanmar national hepatitis C treatment program: a qualitative evaluation. BMC Health Serv Res 2024; 24:80. [PMID: 38229074 DOI: 10.1186/s12913-023-10456-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 12/07/2023] [Indexed: 01/18/2024] Open
Abstract
BACKGROUND Globally, 56.8 million people are living with hepatitis C and over three-quarters of those reside in low and middle-income countries (LMICs). Barriers and enablers to hepatitis C care among people who inject drugs in high-income countries are well documented. However, there is scant literature describing the patient experience in LMICs. Understanding the barriers and enablers to care from the patient perspective is important to inform service refinements to improve accessibility and acceptability of hepatitis C care. METHODS We conducted a qualitative evaluation of the patient experience of accessing the national hepatitis C program at eight hospital sites in Myanmar. Semi-structured interviews were conducted with four to five participants per site. Interview data were analysed thematically, with deductive codes from Levesque et al.'s (2013) Framework on patient-centred access to healthcare. RESULTS Across the eight sites, 38 participants who had completed treatment were interviewed. Barriers to accessing care were mostly related to attending for care and included travel time and costs, multiple appointments, and wait times. Some participants described how they did not receive adequate information on hepatitis C, particularly its transmission routes, and on the level of cirrhosis of their liver and what they were required to do after treatment (i.e. reduce alcohol consumption, liver cirrhosis monitoring). Many participants commented that they had few or no opportunities to ask questions. Provision of treatment at no cost was essential to accessibility, and gratitude for free treatment led to high acceptability of care, even when accessing care was inconvenient. CONCLUSIONS These findings highlight the importance of streamlining and decentralising health services, adequate human resourcing and training, and affordable treatment in maximising the accessibility and acceptability of hepatitis C care in LMICs. Findings from this work will inform future service delivery refinements for national program and other decentralised programs to improve accessibility and acceptability of hepatitis C care in Myanmar.
Collapse
Affiliation(s)
- Bridget Draper
- Disease Elimination Program, Burnet Institute, Melbourne, Australia.
- School of Population Health and Preventive Medicine, Monash University, Melbourne, Australia.
| | | | - Anna Bowring
- Disease Elimination Program, Burnet Institute, Melbourne, Australia
| | - Win Naing
- Yangon Specialty Hospital, Yangon, Myanmar
- Myanmar Liver Foundation, Yangon, Myanmar
| | | | - Hla Htay
- Burnet Institute Myanmar, Yangon, Myanmar
| | - Jessica Howell
- Disease Elimination Program, Burnet Institute, Melbourne, Australia
- St Vincent's Hospital, Melbourne, Australia
- Department of Medicine, University of Melbourne, Melbourne, Australia
| | - Margaret Hellard
- Disease Elimination Program, Burnet Institute, Melbourne, Australia
- School of Population Health and Preventive Medicine, Monash University, Melbourne, Australia
- Hepatitis Services, Department of Infectious Diseases Alfred Hospital, Melbourne, Australia
- Doherty Institute, Melbourne, Australia
- School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - Alisa Pedrana
- Disease Elimination Program, Burnet Institute, Melbourne, Australia
- School of Population Health and Preventive Medicine, Monash University, Melbourne, Australia
- Health Services Research and Implementation, Monash Partners, Melbourne, Australia
| |
Collapse
|
5
|
Barbati S, Strasser J, Allemann SS, Arnet I. Initiation of oral hepatitis C virus treatment: Which barriers are pertinent for ambulatory individuals with a history of illicit substance use? A qualitative interview study. Health Sci Rep 2024; 7:e1814. [PMID: 38260184 PMCID: PMC10802086 DOI: 10.1002/hsr2.1814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/01/2023] [Accepted: 12/21/2023] [Indexed: 01/24/2024] Open
Abstract
Background and Aims The World Health Organization has set a goal to eradicate hepatitis C virus (HCV) by the year 2030. Nonadherence to HCV treatment has substantial economic implications due to high treatment costs, among others. Barriers to start HCV treatment may be critical. The aim of this study was to assess pertinent barriers to HCV treatment in ambulatory patients with a history of illicit substance use and to compare them to the literature. Methods Barriers to HCV treatment mentioned by the key risk group (i.e., people who inject drugs) were retrieved from literature through a pragmatic literature search. From 34 published articles, we identified 80 modifiable barriers that were bundled in 23 items within the four topics "Personal difficulties and barriers to treatment," "Personal motivation to be treated," "Knowledge about the disease," and "Received information about the medicine." In-depth semistructured interviews were performed face-to-face with ambulatory patients from the University Psychiatric Clinics in Basel, Switzerland. Transcripts were coded inductively. Results Interviews were performed with seven individuals (mean age: 48.3 years; range: 38-63 years; one woman) treated with oral direct-acting antivirals between 2014 and 2022. Thirteen barriers to start HCV treatment were mentioned that corresponded to the five categories: information, attitudes, swallowing difficulties, social environment, and unfavorable lifestyle. The barrier "swallowing difficulties" emerged exclusively from the statements provided by the interviewees. Conclusion Barriers to the initiation of HCV treatment indicated by our interviewees clearly differed from the literature. Notably, the challenge of swallowing medicines may be particularly relevant for physicians prescribing and pharmacists dispensing HCV medication.
Collapse
Affiliation(s)
- Selina Barbati
- Pharmaceutical Care Research Group, Department of Pharmaceutical SciencesUniversity of BaselBaselSwitzerland
| | | | - Samuel S. Allemann
- Pharmaceutical Care Research Group, Department of Pharmaceutical SciencesUniversity of BaselBaselSwitzerland
| | - Isabelle Arnet
- Pharmaceutical Care Research Group, Department of Pharmaceutical SciencesUniversity of BaselBaselSwitzerland
| |
Collapse
|
6
|
Hajarizadeh B, Kairouz A, Ottaviano S, Ireland J, Willing A, Cunningham E, Webb P, Colledge-Frisby S, Wheeler A, Leung J, Tran LT, Price O, Vickerman P, Farrell M, Hickman M, Dore GJ, Bergenström A, Degenhardt L, Grebely J. Global, regional, and country-level coverage of testing and treatment for HIV and hepatitis C infection among people who inject drugs: a systematic review. Lancet Glob Health 2023; 11:e1885-e1898. [PMID: 37973339 DOI: 10.1016/s2214-109x(23)00461-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND People who inject drugs are disproportionately affected by HIV and hepatitis C virus (HCV) infections, while there is little global data on HIV and HCV testing and treatment coverage of this population. We conducted a systematic review to evaluate country-level, regional, and global coverage of HIV and HCV testing and treatment among people who inject drugs. METHODS We did a systematic review, and searched bibliographic databases (MEDLINE, Embase, and PsycINFO) and grey literature for studies published between Jan 1, 2017, and April 30, 2022, that evaluated the proportion of people who inject drugs who received testing or treatment for HIV or HCV. For each country, we estimated the proportion of people who inject drugs tested for HIV antibodies in the past 12 months (recent), people who inject drugs ever tested for HCV antibodies and HCV RNA, people who inject drugs with HIV currently receiving antiretroviral therapy, and people who inject drugs with HCV ever receiving HCV antiviral treatment. Regional and global estimates, weighted by the population size of people who inject drugs, were generated where sufficient data were available. This study is registered with PROSPERO (CRD42020173974). FINDINGS 512 documents reported data eligible for analyses, including 337 peer-reviewed articles, 27 conference abstracts or presentations, and 148 documents from grey literature or supplementary searches. Data of recent HIV antibody testing were available for 67 countries and ever having had HCV antibody testing were available for 49 countries. Globally, an estimated 48·8% of people who inject drugs were recently tested for HIV antibodies (95% uncertainty interval [UI] 43·3-54·2%; range 0·9-86·0%), and 47·1% had ever been tested for HCV antibodies (95% UI 43·4-51·0%; range 0·0-93·3%). HCV RNA testing data were available from three countries. Coverage of HIV antibody testing was high (>75%) in four countries and for HCV antibody testing in 15 countries. The estimated uptake of current HIV treatment (18 countries) ranged from 2·6% to 81·9%, and the estimated uptake of ever having HCV treatment (23 countries) ranged from 1·8% to 88·6% across countries. Uptake of HIV treatment was high in two countries, and of HCV treatment in one country. INTERPRETATION HIV and HCV testing and treatment uptake among people who inject drugs was highly variable, and suboptimal in most countries. Strategies to improve access to HIV and HCV care among people who inject drugs and the availability of public health surveillance are urgently required. FUNDING Australian National Health and Medical Research Council and UK National Institute for Health and Care Research Health Protection Research Unit in Behavioural Science and Evaluation.
Collapse
Affiliation(s)
- Behzad Hajarizadeh
- The Kirby Institute, University of New South Wales, Sydney, NSW, Australia.
| | - Abe Kairouz
- The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - Sophie Ottaviano
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Jeremy Ireland
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Alex Willing
- The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - Evan Cunningham
- The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - Paige Webb
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Samantha Colledge-Frisby
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Alice Wheeler
- The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - Janni Leung
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia; National Centre For Youth Substance Use Research, The University of Queensland, QLD, Australia
| | - Lucy T Tran
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Olivia Price
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Peter Vickerman
- Population Health Science, Bristol Medical School, University of Bristol, Bristol, England
| | - Michael Farrell
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Matthew Hickman
- Population Health Science, Bristol Medical School, University of Bristol, Bristol, England
| | - Gregory J Dore
- The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - Anne Bergenström
- European Monitoring Centre for Drugs and Drug Addiction, Lisbon, Portugal
| | - Louisa Degenhardt
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Jason Grebely
- The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| |
Collapse
|
7
|
Anwar I, Donadille C, Protopopescu C, Michels D, Herin J, Pladys A, Bader D, Carrieri P, Roux P. Non-disclosure of drug injection practices as a barrier to HCV testing: results from the PrebupIV community-based research study. Harm Reduct J 2023; 20:98. [PMID: 37516889 PMCID: PMC10387207 DOI: 10.1186/s12954-023-00841-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 07/22/2023] [Indexed: 07/31/2023] Open
Abstract
BACKGROUND Hepatitis C virus (HCV) infection prevalence is particularly high in people who inject drugs (PWID), a population that faces many barriers to HCV testing and care. A better understanding of the determinants of access to HCV testing is needed to improve their engagement in the HCV care cascade. We used data from a cross-sectional survey of people who inject drugs, mainly opioids, to identify factors associated with recent HCV testing. METHODS Self-reported data on HCV antibody testing were analyzed for 550 of the 557 PWID enrolled in PrebupIV, a French cross-sectional community-based survey which assessed PWID acceptability of injectable buprenorphine as a treatment. Factors associated with recent (i.e., in the previous six months) HCV antibody testing were identified performing multivariable logistic regression. RESULTS Among the study sample, 79% were men and 31% reported recent HCV antibody testing. Multivariable analysis found that PWID who did not disclose their injection practices to anyone (aOR [95% CI] 0.31 [0.12,0.82], p = 0.018), older PWID (aOR [95% CI] 0.97 [0.95,1.00], p = 0.030) and employed respondents (aOR [95% CI] 0.58 [0.37,0.92], p = 0.019) were all less likely to report recent HCV testing. No association was found between opioid agonist therapy and HCV testing. CONCLUSIONS Our findings suggest that non-disclosure of injection practices, employment and age were all barriers to HCV antibody testing. Preventing stigma around injection practices, developing the HCV testing offer in primary care and addiction care services, and training healthcare providers in HCV care management could improve HCV testing and therefore, the HCV care cascade in PWID.
Collapse
Affiliation(s)
- Ilhame Anwar
- Aix Marseille Univ, Inserm, IRD, SESSTIM, Sciences Economiques and Sociales de la Santé and Traitement de l'Information Médicale, ISSPAM, Marseille, France.
| | - Cécile Donadille
- Aix Marseille Univ, Inserm, IRD, SESSTIM, Sciences Economiques and Sociales de la Santé and Traitement de l'Information Médicale, ISSPAM, Marseille, France
| | - Camelia Protopopescu
- Aix Marseille Univ, Inserm, IRD, SESSTIM, Sciences Economiques and Sociales de la Santé and Traitement de l'Information Médicale, ISSPAM, Marseille, France
| | - David Michels
- AIDES, Pantin, France
- Laboratoire de Recherche Communautaire, Coalition PLUS, Pantin, France
| | | | - Adélaïde Pladys
- Coordination Nationale des Réseaux de Microstructures (CNRMS), Strasbourg, France
| | - Danièle Bader
- Coordination Nationale des Réseaux de Microstructures (CNRMS), Strasbourg, France
| | - Patrizia Carrieri
- Aix Marseille Univ, Inserm, IRD, SESSTIM, Sciences Economiques and Sociales de la Santé and Traitement de l'Information Médicale, ISSPAM, Marseille, France
| | - Perrine Roux
- Aix Marseille Univ, Inserm, IRD, SESSTIM, Sciences Economiques and Sociales de la Santé and Traitement de l'Information Médicale, ISSPAM, Marseille, France
| |
Collapse
|
8
|
Gunn J, O'Keefe D, Draper BL, Djordjevic F, Ryan K, Kerr P, Elsum I, Gold J, Layton C, Chan K, Dietze P, Higgs P, Doyle J, Stoové MA, Hellard M, Pedrana A. The eliminate hepatitis C (EC) experience study: baseline characteristics of a cohort of people who inject drugs in Melbourne, Australia. BMJ Open 2023; 13:e071665. [PMID: 37400235 DOI: 10.1136/bmjopen-2023-071665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/05/2023] Open
Abstract
OBJECTIVES Direct-acting antivirals provide an opportunity to eliminate hepatitis C virus (HCV) as a public health threat in Australia, yet barriers to care remain. In this study, we use baseline data from a longitudinal cohort of people who inject drugs to understand differences in participant characteristics and explore experiences of stigma, health service utilisation and health literacy between three care cascade groups. DESIGN Cross-sectional. SETTING Community and private primary healthcare services in Melbourne, Australia. PARTICIPANTS Participants completed baseline surveys between 19 September 2018 and 15 December 2020. We recruited 288 participants; the median age was 42 years (IQR: 37-49 years) and 198 (69%) were male. At baseline, 103 (36%) self-reported being 'not engaged in testing', 127 (44%) had HCV RNA positivity but were 'not engaged in treatment' and 58 (20%) were 'engaged in HCV treatment'. OUTCOME MEASURES Descriptive statistics were used to present the baseline demographics, health service utilisation and experiences of stigma data. We explored differences in these scales between participant demographics using χ2 test or fisher's exact tests, and differences between health literacy scores using one-way analysis of variance tests. RESULTS A majority were in regular contact with multiple health services, and most had previously been identified as at-risk of HCV. In the 12 months preceding baseline, 70% reported any experiences of stigma related to injecting drug use. Assessment of health literacy data identified gaps for those 'not engaged in testing' and 'not engaged in treatment' across two relevant domains: 'ability to appraise health information' and 'ability to actively engage with healthcare providers'. CONCLUSION In eliminate hepatitis C experience, lower HCV testing and treatment may be explained by experiences of stigmatisation or gaps in health literacy. Enhanced interventions targeting people who inject drugs to promote HCV care are needed.
Collapse
Affiliation(s)
- Jack Gunn
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
| | - Daniel O'Keefe
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Clayton, Victoria, Australia
| | - Bridget Louise Draper
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Clayton, Victoria, Australia
| | - Filip Djordjevic
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
| | - Kathleen Ryan
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
| | - Phoebe Kerr
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
| | - Imogen Elsum
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
| | - Judy Gold
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Clayton, Victoria, Australia
| | - Chloe Layton
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
| | - Kico Chan
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
| | - Paul Dietze
- School of Public Health and Preventive Medicine, Monash University, Clayton, Victoria, Australia
- National Drug Research Institute, Curtin University, Perth, Western Australia, Australia
- Behaviours and Health Risks Program, Burnet Institute, Melbourne, Victoria, Australia
| | - Peter Higgs
- Behaviours and Health Risks Program, Burnet Institute, Melbourne, Victoria, Australia
- Department of Public Health, La Trobe University, Bundoora, Victoria, Australia
| | - Joseph Doyle
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Clayton, Victoria, Australia
| | - Mark A Stoové
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Clayton, Victoria, Australia
| | - Margaret Hellard
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Clayton, Victoria, Australia
- Department of Infectious Diseases, The Alfred and Monash University, Melbourne, Victoria, Australia
- Doherty Institute and Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
| | - Alisa Pedrana
- Disease Elimination Program, Burnet Institute, Melbourne, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Clayton, Victoria, Australia
| |
Collapse
|
9
|
Taha G, Ezra L, Abu-Freha N. Hepatitis C Elimination: Opportunities and Challenges in 2023. Viruses 2023; 15:1413. [PMID: 37515101 PMCID: PMC10386528 DOI: 10.3390/v15071413] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/08/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023] Open
Abstract
Hepatitis C Virus (HCV) infection is a leading etiology of liver cirrhosis and its associated complications, namely, decompensated cirrhosis. As such, hepatitis C potentially necessitates liver transplantation and may result in death. Recently, HCV treatment has evolved. Current HCV treatment is effective in curing HCV; some of the agents are pan-genotypic. Numerous countries have adopted an initiative to eliminate HCV. Achieving elimination poses many challenges; it requires improved availability and accessibility of pan-genotypic therapy. Barriers exist at the level of the collective healthcare system and at the level of the individual healthcare providers and patients. Therefore, organized national and local efforts are needed. Surmounting these barriers calls for interventions concerning screening, linkage to care, and treatment delivery. Pertinent barriers include inadequate availability of screening, ill-equipped laboratory testing before treatment, and insufficient access to treatment. Interventions should seek to decentralize laboratory testing and treatment provision, increase funding for resources and personnel, and spread awareness. Special consideration should be allocated to at-risk populations, such as intravenous drug users, refugees, and prisoners. Computerized medical filing and telemedicine have the potential to refine HCV management by enhancing detection, availability, accessibility, and cost-effectiveness.
Collapse
Affiliation(s)
- Gadeer Taha
- Department of Gastroenterology, Rambam Health Care Campus, Haifa 31096, Israel
| | - Levy Ezra
- Medical School for International Health, Ben-Gurion University of the Negev, Beer-Sheva 84101, Israel
| | - Naim Abu-Freha
- Institute of Gastroenterology and Hepatology, Soroka University Medical Center, Beer-Sheva 84101, Israel
- Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva 84105, Israel
| |
Collapse
|
10
|
Antoniou T, Pritlove C, Shearer D, Tadrous M, Shah H, Gomes T. Accessing hepatitis C direct acting antivirals among people living with hepatitis C: a qualitative study. Int J Equity Health 2023; 22:112. [PMID: 37280588 PMCID: PMC10243011 DOI: 10.1186/s12939-023-01924-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 05/23/2023] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND Hepatitis C is curable with direct-acting antivirals (DAAs). However, treatment uptake remains low among marginalized populations such as people who inject drugs. We sought to understand challenges to treatment uptake with DAAs among people living with hepatitis C and compare treatment experiences between people who do and do not inject prescription and/or unregulated drugs. METHODS We conducted a qualitative study using focus groups with 23 adults aged 18 years and over who completed DAA treatment or were about to begin such treatment at the time of the study. Participants were recruited from hepatitis C treatment clinics across Toronto, Ontario. We drew upon stigma theory to interpret participants' accounts. RESULTS Following analysis and interpretation, we generated five theoretically-informed themes characterizing the experiences of individuals accessing DAAs: "being 'worthy' of the cure", "spatially enacted stigma", "countering social and structural vulnerability: the importance of peers", "identity disruption and contagion: attaining a 'social cure'" and "challenging stigma with population-based screening". Overall, our findings suggest that structural stigma generated and reproduced through healthcare encounters limits access to DAAs among people who inject drugs. Peer-based programs and population-based screening were proposed by participants as mechanisms for countering stigma within health care settings and 'normalizing' hepatitis C among the general population. CONCLUSIONS Despite the availability of curative therapies, access to such treatment for people who inject drugs is limited by stigma enacted in and structured within healthcare encounters. Developing novel, low-threshold delivery programs that remove power differentials and attend to the social and structural determinants of health and reinfection are needed to facilitate further scale up of DAAs and support the goal of eradicating hepatitis C as a public health threat.
Collapse
Affiliation(s)
- Tony Antoniou
- Li Ka Shing Knowledge Institute, Unity Health, Toronto, ON, Canada.
- Department of Family and Community Medicine, Unity Health, Toronto, ON, Canada.
- Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada.
| | - Cheryl Pritlove
- Li Ka Shing Knowledge Institute, Unity Health, Toronto, ON, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Dana Shearer
- Li Ka Shing Knowledge Institute, Unity Health, Toronto, ON, Canada
| | - Mina Tadrous
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
- Women's College Research Institute, Toronto, ON, Canada
| | - Hemant Shah
- Toronto Centre for Liver Disease, University Health Network, Toronto, ON, Canada
- Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Tara Gomes
- Li Ka Shing Knowledge Institute, Unity Health, Toronto, ON, Canada
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
- Institute for Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
11
|
Herink MC, Seaman A, Leichtling G, Larsen JE, Gailey T, Cook R, Thomas A, Korthuis PT. A randomized controlled trial for a peer-facilitated telemedicine hepatitis c treatment intervention for people who use drugs in rural communities: study protocol for the "peer tele-HCV" study. Addict Sci Clin Pract 2023; 18:35. [PMID: 37245041 PMCID: PMC10221743 DOI: 10.1186/s13722-023-00384-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 05/01/2023] [Indexed: 05/29/2023] Open
Abstract
BACKGROUND Hepatitis C virus (HCV) transmission is primarily driven by injection drug use, and acute HCV infection rates are increased in rural communities with substantial barriers to care. Treatment of HCV in persons who use drugs (PWUD) is cost effective, decreases high risk behaviors and HCV transmission, and achieves high rates of treatment completion and sustained viral response. Adapting HCV care delivery to utilize peer support specialists, telemedicine technology, and streamlined testing and treatment strategies can better reach rural populations living with HCV. METHODS This is an open label, two-arm, non-blinded, randomized controlled trial designed to test the superiority of peer-facilitated and streamlined telemedicine HCV care (peer tele-HCV) compared to enhanced usual care (EUC) among PWUD in rural Oregon. In the intervention arm, peers conduct HCV screening in the community, facilitate pretreatment evaluation and linkage to telemedicine hepatitis C treatment providers, and support participants in HCV medication adherence. For participants assigned to EUC, peers facilitate pretreatment evaluation and referral to community-based treatment providers. The primary outcome is sustained virologic response at 12 weeks post treatment (SVR12). Secondary outcomes include: (1) HCV treatment initiation, (2) HCV treatment completion, (3) engagement with harm reduction resources, (4) rates of substance use, and (5) engagement in addiction treatment resources. The primary and secondary outcomes are analyzed using intention-to-treat (ITT) comparisons between telemedicine and EUC. A qualitative analysis will assess patient, peer, and clinician experiences of peer-facilitated telemedicine hepatitis C treatment. DISCUSSION This study uses a novel peer-based telemedicine delivery model with streamlined testing protocols to improve access to HCV treatment in rural communities with high rates of injection drug use and ongoing disease transmission. We hypothesize that the peer tele-HCV model will increase treatment initiation, treatment completion, SVR12 rates, and engagement with harm reduction services compared to EUC. Trial registration This trial has been registered with ClinicalTrials.gov (clinicaltrials.gov NCT04798521).
Collapse
Affiliation(s)
- Megan C Herink
- College of Pharmacy, Oregon State University / Oregon Health & Science University, Portland, USA.
| | - Andrew Seaman
- Division of Addiction Medicine, Department of Internal Medicine, Oregon Health & Science University, Portland, USA
| | | | | | - Tonhi Gailey
- Oregon Health & Science University, Portland, USA
| | - Ryan Cook
- Section of Addiction Medicine, Oregon Health & Science University, Portland, OR, USA
| | | | - P Todd Korthuis
- Section of Addiction Medicine, Oregon Health & Science University, Portland, OR, USA
| |
Collapse
|
12
|
Park H, Brown C, Wilson DL, Huang PL, Hernández-Con P, Horne P, Goodin A, Joseph A, Segal R, Cabrera R, Cook RL. Clinician barriers, perceptions, and practices in treating patients with hepatitis C virus and substance use disorder in the United States. Prev Med Rep 2023; 32:102138. [PMID: 36865395 PMCID: PMC9971512 DOI: 10.1016/j.pmedr.2023.102138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 12/19/2022] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
The likelihood of clinicians prescribing direct-acting antiviral (DAA) therapy for patients with chronic hepatitis C virus (HCV) and substance use disorder (SUD) was assessed via a survey emailed throughout the United States to clinicians (physicians and advanced practice providers) in gastroenterology, hepatology, and infectious disease specialties. Clinicians' perceived barriers and preparedness and actions associated with current and future DAA prescribing practices of HCV-infected patients with SUD were assessed. Of 846 clinicians presumably receiving the survey, 96 completed and returned it. Exploratory factor analyses of perceived barriers indicated a highly reliable (Cronbach alpha = 0.89) model with five factors: HCV stigma and knowledge, prior authorization requirements, and patient- clinician-, and system-related barriers. In multivariable analyses, after controlling for covariates, patient-related barriers (P < 0.01) and prior authorization requirements (P < 0.01) were negatively associated with the likelihood of prescribing DAAs. Exploratory factor analyses of clinician preparedness and actions indicated a highly reliable (Cronbach alpha = 0.75) model with three factors: beliefs and comfort level; action; and perceived limitations. Clinician beliefs and comfort levels were negatively associated with the likelihood of prescribing DAAs (P = 0.01). Composite scores of barriers (P < 0.01) and clinician preparedness and actions (P < 0.05) were also negatively associated with the intent to prescribe DAAs. Conclusion These findings underscore the importance of addressing patient-related barriers and prior authorization requirements-significant problematic barriers-and improving clinicians' beliefs (e.g., medication-assisted therapy should be prescribed before DAAs) and comfort levels for treating patients with HCV and SUD to enhance treatment access for patients with both HCV and SUD.
Collapse
Affiliation(s)
- Haesuk Park
- Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL, United States
| | - Carolyn Brown
- Health Outcomes, College of Pharmacy, University of Texas, Austin, TX, United States
| | - Debbie L Wilson
- Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL, United States
| | - Pei-Lin Huang
- Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL, United States
| | - Pilar Hernández-Con
- Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL, United States
| | - Patrick Horne
- Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL, United States
| | - Amie Goodin
- Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL, United States
| | - Amanda Joseph
- Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL, United States
| | - Rich Segal
- Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL, United States
| | - Roniel Cabrera
- Department of Medicine, College of Medicine, University of Florida, Gainesville, FL, United States
| | - Robert L Cook
- Department of Epidemiology, College of Health and Health Professions and College of Medicine, University of Florida, Gainesville, FL, United States
| |
Collapse
|
13
|
Research on point-of-care tests in outpatient care in Germany: A scoping review and definition of relevant endpoints in evaluation studies. ZEITSCHRIFT FUR EVIDENZ, FORTBILDUNG UND QUALITAT IM GESUNDHEITSWESEN 2022; 174:1-10. [PMID: 36055890 DOI: 10.1016/j.zefq.2022.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/14/2022] [Accepted: 06/13/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND The fast turnaround time and user-friendliness of point-of-care tests (POCTs) offer a great potential to improve outpatient health care where clinical decisions have to be made during the physician-patient encounter and time resources are limited. The aim of this scoping review is to describe the extent and nature as well as gaps in German research activities on POCT in outpatient care. In addition, we define research endpoints that should be addressed in the comprehensive evaluation of POCTs targeted for outpatient care. METHODS We performed a scoping review with a systematic literature search in Medline (via PubMed), Scopus, Web of Science, Cochrane library and Google Scholar for German publications on POCT with relevance to German outpatient care published from January 2005 to November 2020. RESULTS Our literature search identified 2,200 unique records. After literature selection 117 articles were included in this scoping review. Just over half of the articles (67/117, 57.3%) were primary research studies with original data, while one third of all the studies (33.3%) were secondary research articles (e.g., review articles). The remaining articles were clinical recommendations / position papers (7/117, 6.0%) and other types of articles (3.4%). The majority of articles focused on POCT use in infectious diseases (44/117, 37.6%), diabetic syndromes (15.4%), cardiac disease (12.0%) or coagulopathies and thrombosis (10.3%), while the remaining articles did not specify the disease (13.7%) or investigated other diseases (11.1%). Similar to international studies, most primary research studies investigated the diagnostic performance of POCT (e.g., sensitivity, specificity). Evidence beyond diagnostic accuracy remains scarce, such as the impact on therapeutic decisions and practice routines, clinical effectiveness, and user perspectives. In line with this, interventional studies (such as RCTs) on the effectiveness of POCT use in German outpatient care are limited. We define six endpoint domains that should be addressed in the evaluation of POCTs targeted for outpatient care: (i) diagnostic performance, (ii) clinical performance, (iii) time and costs, (iv) impact on clinical routines / processes, (v) perspectives of medical professionals and patients, and (vi) broader aspects. CONCLUSION There is considerable research activity on POCTs targeted for use in outpatient care in Germany. Data on their potential benefits beyond diagnostic accuracy is often lacking and should be addressed in future POCT research studies.
Collapse
|
14
|
Wang AE, Hsieh E, Turner BJ, Terrault N. Integrating Management of Hepatitis C Infection into Primary Care: the Key to Hepatitis C Elimination Efforts. J Gen Intern Med 2022; 37:3435-3443. [PMID: 35484367 PMCID: PMC9551010 DOI: 10.1007/s11606-022-07628-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 04/18/2022] [Indexed: 11/24/2022]
Abstract
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.
Collapse
Affiliation(s)
- Allison E Wang
- Department of Internal Medicine, University of Southern California, Los Angeles, CA, USA
| | - Eric Hsieh
- Department of Internal Medicine, University of Southern California, Los Angeles, CA, USA
| | - Barbara J Turner
- Department of Internal Medicine, University of Southern California, Los Angeles, CA, USA
| | - Norah Terrault
- Department of Internal Medicine, University of Southern California, Los Angeles, CA, USA.
- Division of Gastrointestinal and Liver Diseases, Department of Medicine, University of Southern California, Los Angeles, CA, USA.
| |
Collapse
|
15
|
Evon DM, Hurt CB, Carpenter DM, Rhea SK, Hennessy CM, Zule WA. Substance Use Disorder Treatment Providers' Knowledge and Opinions Toward Testing and Treatment of Chronic Hepatitis C in Rural North Carolina. RURAL MENTAL HEALTH 2022; 46:162-173. [PMID: 35967261 PMCID: PMC9371459 DOI: 10.1037/rmh0000200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Poor access to care has made western North Carolina vulnerable to an outbreak of hepatitis C viral infection (HCV), particularly among persons who inject drugs (PWID). As substance use disorder (SUD) treatment providers could potentially improve linkage to HCV testing and treatment, we sought to understand SUD providers, clinic and client characteristics; referral patterns; HCV knowledge; willingness to participate in additional trainings; and local linkage-to-care pathways for treatment of substance use and HCV. Online survey data were collected from 78 SUD providers serving PWID in eight western rural North Carolina counties. Providers' attitudes toward working with HCV+ clients were very positive. One-third of providers reported a low fund of knowledge regarding HCV, HCV treatment, and financial assistance opportunities. Non-prescribing providers rarely initiated discussions about HCV testing/treatment, but were receptive to training. Respondents indicated that HCV testing and treatment were best delivered at local health departments or primary care clinics but were open to other venues where PWID access care. The vast majority of prescribing and non-prescribing providers expressed interest in obtaining training in HCV treatments, how to obtain HCV medications and topics on advanced liver disease. Data from prescribing and non-prescribing SUD providers suggest opportunities to develop or expand integrated care models for HCV testing/treatment in PWID in rural Appalachian North Carolina.
Collapse
Affiliation(s)
- Donna M. Evon
- Division of Gastroenterology & Hepatology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Christopher B. Hurt
- Institute for Global Health & Infectious Diseases, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Delesha M. Carpenter
- Division of Pharmaceutical Outcomes and Policy, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | | | | |
Collapse
|
16
|
Harney BL, Whitton B, Paige E, Brereton R, Weiss R, Membrey D, Wade AJ, Iser D, Kemp W, Roberts SK, Spelman T, Sacks-Davis R, Hellard ME, Doyle JS. A multi-site, nurse-coordinated hepatitis C model of care in primary care and community services in Melbourne, Australia. Liver Int 2022; 42:522-531. [PMID: 34821021 DOI: 10.1111/liv.15107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/10/2021] [Accepted: 11/18/2021] [Indexed: 12/31/2022]
Abstract
BACKGROUND Hepatitis C virus (HCV) treatment through primary care and community-based services will be a critical component of HCV elimination. We evaluated a nurse-coordinated programme providing care across eight sites and analysed progression through the HCV care cascade. METHODS People-accessing services from six primary care clinics, a homeless crisis accommodation provider and a mental health service were directly referred to nurses or engaged by nurses during regular clinic visits. Nurses supported HCV testing, treatment and follow-up. The prescription was provided by affiliated clinicians. Logistic regression was used to examine factors associated with treatment commencement and sustained virological response (SVR) testing. RESULTS Of 640 people referred to and/or engaged by the nurses from January 2017 to July 2019, 518 had an HCV RNA test of whom 381 (74%) were HCV RNA positive. Treatment was commenced by 281 (74%) people of whom 161 had an SVR test, 157 (97.5%) were cured. Opioid agonist therapy was associated with treatment commencement (aOR 2.68, 95% CI 1.48-4.88). People who were homeless/unstably housed were less likely to commence treatment (aOR 0.45, 95% CI 0.23-0.87). Treatment prescription from a specialist (aOR 2.39, 95% CI 1.20-4.74) and recent injection drug use (<6 months) (aOR 2.15, 95% CI 1.07-4.31) was associated with SVR testing. CONCLUSION A nurse-coordinated model of care led to high levels of HCV treatment uptake and cure amongst people attending primary care and community services. More tailored models of care may be beneficial for people who are homeless or have unstable housing. These results support primary care and community-based hepatitis C treatment.
Collapse
Affiliation(s)
- Brendan L Harney
- Department of Infectious Diseases, Alfred Health & Monash University, Melbourne, Australia.,Disease Elimination Program, Burnet Institute, Melbourne, Australia.,School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Bradley Whitton
- Department of Infectious Diseases, Alfred Health & Monash University, Melbourne, Australia
| | - Emma Paige
- Department of Infectious Diseases, Alfred Health & Monash University, Melbourne, Australia
| | - Rebecca Brereton
- St Kilda Road Clinic & South City Clinic, Alfred Community Mental & Addiction Health, Melbourne, Australia
| | | | | | - Amanda J Wade
- Disease Elimination Program, Burnet Institute, Melbourne, Australia.,Department of Infectious Diseases, Barwon Health, Geelong, Australia
| | - David Iser
- Department of Infectious Diseases, Alfred Health & Monash University, Melbourne, Australia.,Department of Medicine, University of Melbourne, Melbourne, Australia
| | - William Kemp
- Department of Gastroenterology, Alfred Health, Melbourne, Australia.,Department of Medicine, Monash University, Melbourne, Australia
| | - Stuart K Roberts
- Department of Gastroenterology, Alfred Health, Melbourne, Australia.,Department of Medicine, Monash University, Melbourne, Australia
| | - Tim Spelman
- Disease Elimination Program, Burnet Institute, Melbourne, Australia
| | - Rachel Sacks-Davis
- Disease Elimination Program, Burnet Institute, Melbourne, Australia.,School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Margaret E Hellard
- Department of Infectious Diseases, Alfred Health & Monash University, Melbourne, Australia.,Disease Elimination Program, Burnet Institute, Melbourne, Australia.,School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia.,Doherty Institute and School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - Joseph S Doyle
- Department of Infectious Diseases, Alfred Health & Monash University, Melbourne, Australia.,Disease Elimination Program, Burnet Institute, Melbourne, Australia
| |
Collapse
|
17
|
Von den Hoff DW, Berden FAC, Drenth JPH, Schellekens AFA. Implementation of a decentralized hepatitis C care pathway for people who use drugs in Dutch addiction care. Study protocol for the Hepatitis C: chain of addiction care (CAC) project. Addict Sci Clin Pract 2022; 17:67. [PMID: 36451175 PMCID: PMC9710026 DOI: 10.1186/s13722-022-00350-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 11/16/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND People who use drugs (PWUD) are at high risk for hepatitis C virus (HCV) infection and its complications. Given the high prevalence rate of HCV in PWUD, the World Health Organization (WHO) emphasizes PWUD as a target population for HCV elimination. The introduction of pangenotypic direct acting antivirals (DAAs) greatly simplifies HCV treatment, which encourages integration of HCV treatment in primary care. Facilitating low threshold HCV care for PWUD by implementing decentralized models is crucial for HCV elimination. AIMS With this study we aim to (1) eliminate 90% of identified HCV infections in Dutch addiction care, using a decentralized PWUD-HCV care model, and (2) identify facilitators and barriers for successful implementation of the model using interviews. METHODS We will perform a multicenter mixed-method study on HCV treatment in addiction care. In a prospective observational study we will examine HCV-related outcomes in PWUD receiving HCV treatment as part of addiction care. The primary outcome is viral elimination, defined as percentage of identified HCV positive patients cured with DAAs. In parallel, we will perform a qualitative study to explore facilitators and barriers for implementation of fully decentralized HCV-PWUD care. We will interview addiction care professionals and board members about their experience with HCV-care as part of addiction care. DISCUSSION This study will show effectiveness of integration of HCV care within addiction care, and provide insight in facilitators and barriers to implement integrated HCV-addiction care. The results will provide recommendations for implementation and maintenance of the decentralized HCV pathway, which can facilitate scaling-up to contribute to reaching WHO HCV elimination goals. Trial registration NCT05401136.
Collapse
Affiliation(s)
- Daan W. Von den Hoff
- grid.10417.330000 0004 0444 9382Department of Gastroenterology and Hepatology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, The Netherlands
| | - Floor A. C. Berden
- grid.10417.330000 0004 0444 9382Department of Gastroenterology and Hepatology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, The Netherlands
| | - Joost P. H. Drenth
- grid.10417.330000 0004 0444 9382Department of Gastroenterology and Hepatology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, The Netherlands
| | - Arnt F. A. Schellekens
- grid.10417.330000 0004 0444 9382Department of Psychiatry, Cognition and Behaviour, Radboud University Medical Center, Netherlands and Nijmegen Institute for Scientist-Practitioners in Addiction and Donders Institute for Brain, Radboud University, Nijmegen, The Netherlands
| | | |
Collapse
|
18
|
Coupland H, Day C, Haber P, Pritchard-Jones J, McKee K, George J, McCaughan G. Client resistance to hepatitis C treatment initiation in opioid agonist treatment clinics in Sydney, Australia: A qualitative study. Drug Alcohol Rev 2021; 41:706-714. [PMID: 34839561 DOI: 10.1111/dar.13414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/18/2021] [Accepted: 11/01/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Opioid agonist treatment (OAT) clinics play a key role in achieving elimination of hepatitis C virus (HCV) globally. Previous research has identified barriers to HCV treatment uptake in OAT clinics; however, most studies were conducted prior to the introduction of direct-acting antiviral treatments (DAA). It remains unclear whether progress has been made in responding to barriers and what challenges persist in this setting. METHODS Semi-structured in-depth interviews were conducted with staff (n = 20) and clients (n = 15) in two OAT clinics in Sydney, Australia. Interviews were transcribed verbatim and analysed using constant comparative methods. RESULTS Despite progress in integrating hepatitis C care in the clinics, competing priorities, concerns about side-effects, distrust of staff, health problems and difficulties accessing testing and medication persisted as key reasons why clients had not initiated treatment. Most clients preferred to postpone treatment and focus on other priorities and some highlighted lack of medical evidence for urgent treatment. Pressure on services to achieve elimination targets within set time frames was a primary driver of repeated offers of treatment by staff and the framing of clients' preferences for postponing treatment, as a barrier. DISCUSSION AND CONCLUSION Current timelines for HCV elimination targets may have galvanised services into action but may have also created tensions at the coalface due to disparities between staff and clients' priorities. The involvement of peer workers and mechanisms to ensure continued follow up with clients about DAA treatments is required. Public health timelines for HCV elimination need to be informed by affected communities' priorities.
Collapse
Affiliation(s)
- Heidi Coupland
- Edith Collins Centre (Translational Research in Alcohol, Drugs and Toxicology), Sydney Local Health District, Sydney, Australia.,Drug Health Services, Royal Prince Alfred Hospital, Sydney, Australia.,Specialty of Addiction Medicine, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Carolyn Day
- Edith Collins Centre (Translational Research in Alcohol, Drugs and Toxicology), Sydney Local Health District, Sydney, Australia.,Drug Health Services, Royal Prince Alfred Hospital, Sydney, Australia.,Specialty of Addiction Medicine, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Paul Haber
- Edith Collins Centre (Translational Research in Alcohol, Drugs and Toxicology), Sydney Local Health District, Sydney, Australia.,Drug Health Services, Royal Prince Alfred Hospital, Sydney, Australia.,Specialty of Addiction Medicine, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Janice Pritchard-Jones
- W Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney Local Health District, Sydney, Australia
| | - Kristen McKee
- Storr Liver Centre, Westmead Hospital, Sydney, Australia
| | - Jacob George
- Storr Liver Centre, Westmead Hospital, Sydney, Australia
| | - Geoff McCaughan
- W Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney Local Health District, Sydney, Australia
| |
Collapse
|
19
|
Talal AH, Markatou M, Sofikitou EM, Brown LS, Perumalswami P, Dinani A, Tobin JN. Patient-centered HCV care via telemedicine for individuals on medication for opioid use disorder: Telemedicine for Evaluation, Adherence and Medication for Hepatitis C (TEAM-C). Contemp Clin Trials 2021; 112:106632. [PMID: 34813962 DOI: 10.1016/j.cct.2021.106632] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 11/15/2021] [Accepted: 11/17/2021] [Indexed: 01/08/2023]
Abstract
BACKGROUND Telemedicine has the potential to increase healthcare access especially for vulnerable populations. Telemedicine for Evaluation, Adherence, and Medication for Hepatitis C (TEAM-C) is comparing telemedicine access to specialty medical care to usual care for management of hepatitis C virus (HCV) infection among persons with opioid use disorder (PWOUD). PWOUD have the highest hepatitis C virus (HCV) prevalence and incidence, yet they infrequently receive HCV care. The study objectives are to compare access to specialty care via telemedicine to offsite specialty referral (usual care) on 1) treatment initiation, completion, and sustained virological response, 2) patient satisfaction with health care delivery, and 3) HCV reinfection after successful HCV cure. METHODS TEAM-C is a multi-site, non-blinded, randomized pragmatic clinical trial conducted at 12 opioid treatment programs (OTP) throughout New York State that utilizes the stepped-wedge design. The unit of randomization is the OTP with a total sample size of 624 participants. HCV-infected PWOUD were treated via telemedicine or referral. Telemedicine encounters are conducted onsite in the OTP with co-administration of direct acting antivirals for HCV with medications for opioid use disorder. The primary outcome is undetectable HCV RNA obtained 12 weeks post-treatment cessation. We also follow participants for two years to assess for reinfection. CONCLUSIONS The study utilizes a rigorous study design to evaluate the effectiveness and implementation of virtual treatment for HCV integrated into behavioral treatment. We demonstrate the feasibility, engagement principles and lessons learned from the initial prospective randomized trial of telemedicine targeted to a vulnerable population.
Collapse
Affiliation(s)
- Andrew H Talal
- Division of Gastroenterology, Hepatology, and Nutrition, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, 875 Ellicot Street, Suite 6090, Buffalo, NY 14203, USA.
| | - Marianthi Markatou
- Department of Biostatistics, University at Buffalo, 726 Kimball Tower, Buffalo, NY 14214, USA.
| | - Elisavet M Sofikitou
- Department of Biostatistics, University at Buffalo, 726 Kimball Tower, Buffalo, NY 14214, USA.
| | - Lawrence S Brown
- START Treatment & Recovery Centers, 22 Chapel Street, Brooklyn, NY 11201, USA.
| | - Ponni Perumalswami
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, 17 East 102nd Street 8th Floor, New York, NY 10029, USA.
| | - Amreen Dinani
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, 17 East 102nd Street 8th Floor, New York, NY 10029, USA.
| | - Jonathan N Tobin
- Clinical Directors Network, Inc. (CDN), New York, NY, USA; The Rockefeller University, 5 West 37th Street, 10(th) floor, New York, NY 10018, USA.
| |
Collapse
|
20
|
Foschi FG, Borghi A, Grassi A, Lanzi A, Speranza E, Vignoli T, Napoli L, Olivoni D, Sanza M, Polidori E, Greco G, Bassi P, Cristini F, Ballardini G, Altini M, Conti F. Model of Care for Microelimination of Hepatitis C Virus Infection among People Who Inject Drugs. J Clin Med 2021; 10:jcm10174001. [PMID: 34501448 PMCID: PMC8432451 DOI: 10.3390/jcm10174001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 12/31/2022] Open
Abstract
Background: People who inject drugs (PWID) are the largest group at risk for HCV infection. Despite the direct acting antivirals (DAA) advancements, HCV elimination has been hindered by real-life difficulties in PWID. Aims: This study aimed to assess the impact of a multidisciplinary intervention strategy where HCV screening, treatment and follow-up were performed at the same location on efficacy and safety of DAA-therapy in real-life PWID population. Methods: All HCV-infected PWID referred to five specialized outpatient centers for drug addicts (SerDs) in Northern Italy were prospectively enrolled from May 2015 to December 2019. Hepatologists and SerDs healthcare workers collaborated together in the management of PWID inside the SerDs. Sustained virologic response (SVR), safety of treatment, proportion of patients lost to follow-up and reinfection rate were evaluated. Results: A total of 358 PWID started antiviral treatment. About 50% of patients had advanced fibrosis/cirrhosis, 69% received opioid substitution treatment, and 20.7% self-reported recent injecting use. SVR was achieved in 338 (94.4%) patients. Two patients died during treatment; one prematurely discontinued, resulting in a non-responder; twelve were lost during treatment/follow-up; and five relapsed. No serious adverse events were reported. SVR was lower in recent PWID than in former ones (89.2% vs. 95.8%; p = 0.028). Seven reinfections were detected, equating to an incidence of 1.25/100 person-years. Reinfection was associated with recent drug use (OR 11.07, 95%CI 2.10–58.38; p = 0.005). Conclusion: Our embedded treatment model could be appropriate to increase the linkage to care of HCV-infected PWID. In this setting, DAA regimens are well tolerated and highly effective, achieving a lower rate of reinfection.
Collapse
Affiliation(s)
| | - Alberto Borghi
- Internal Medicine Department, Faenza Hospital, 48018 Faenza, Italy; (F.G.F.); (A.B.); (L.N.)
| | - Alberto Grassi
- Internal Medicine Department, Rimini Hospital, 47923 Rimini, Italy; (A.G.); (G.B.)
| | - Arianna Lanzi
- Mental Health and Pathological Addictions Department, Addiction Treatment Service of Cesena, 47521 Cesena, Italy; (A.L.); (M.S.)
| | - Elvira Speranza
- Mental Health and Pathological Addictions Department, Addiction Treatment Service of Faenza, 48018 Faenza, Italy;
| | - Teo Vignoli
- Mental Health and Pathological Addictions Department, Addiction Treatment Service of Lugo, 48121 Ravenna, Italy; (T.V.); (D.O.); (G.G.)
| | - Lucia Napoli
- Internal Medicine Department, Faenza Hospital, 48018 Faenza, Italy; (F.G.F.); (A.B.); (L.N.)
| | - Deanna Olivoni
- Mental Health and Pathological Addictions Department, Addiction Treatment Service of Lugo, 48121 Ravenna, Italy; (T.V.); (D.O.); (G.G.)
| | - Michele Sanza
- Mental Health and Pathological Addictions Department, Addiction Treatment Service of Cesena, 47521 Cesena, Italy; (A.L.); (M.S.)
| | - Edoardo Polidori
- Mental Health and Pathological Addictions Department, Addiction Treatment Service of Rimini and Forlì, 47121 Forlì, Italy;
| | - Giovanni Greco
- Mental Health and Pathological Addictions Department, Addiction Treatment Service of Lugo, 48121 Ravenna, Italy; (T.V.); (D.O.); (G.G.)
| | - Paolo Bassi
- Infectious Disease Department, Ravenna Hospital, 48121 Ravenna, Italy;
| | | | - Giorgio Ballardini
- Internal Medicine Department, Rimini Hospital, 47923 Rimini, Italy; (A.G.); (G.B.)
| | - Mattia Altini
- Local Healthcare Authority of Romagna, AUSL Romagna, 48121 Ravenna, Italy;
| | - Fabio Conti
- Internal Medicine Department, Faenza Hospital, 48018 Faenza, Italy; (F.G.F.); (A.B.); (L.N.)
- Correspondence: ; Tel.: +39-0546-601111
| | | |
Collapse
|
21
|
High Sustained Virologic Response Rates of Glecaprevir/Pibrentasvir in Patients With Dosing Interruption or Suboptimal Adherence. Am J Gastroenterol 2021; 116:1896-1904. [PMID: 34465693 PMCID: PMC8389353 DOI: 10.14309/ajg.0000000000001332] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 05/06/2021] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Pangenotypic, all-oral direct-acting antivirals, such as glecaprevir/pibrentasvir (G/P), are recommended for treatment of hepatitis C virus (HCV) infection. Concerns exist about the impact on efficacy in patients with suboptimal adherence, particularly with shorter treatment durations. These post hoc analyses evaluated adherence (based on pill count) in patients prescribed 8- or 12-week G/P, the impact of nonadherence on sustained virologic response at post-treatment week 12 (SVR12), factors associated with nonadherence, and efficacy in patients interrupting G/P treatment. METHODS Data were pooled from 10 phase 3 clinical trials of treatment-naive patients with HCV genotype 1-6 without cirrhosis/with compensated cirrhosis (treatment adherence analysis) and 13 phase 3 clinical trials of all patients with HCV (interruption analysis). RESULTS Among 2,149 patients included, overall mean adherence was 99.4%. Over the treatment duration, adherence decreased (weeks 0-4: 100%; weeks 5-8: 98.3%; and weeks 9-12: 97.1%) and the percentage of patients with ≥80% or ≥90% adherence declined. SVR12 rate in the intention-to-treat (ITT) population was 97.7% (modified ITT SVR12 99.3%) and remained high in nonadherent patients in the modified ITT population (<90%: 94.4%-100%; <80%: 83.3%-100%). Psychiatric disorders were associated with <80% adherence, and shorter treatment duration was associated with ≥80% adherence. Among 2,902 patients in the interruption analysis, 33 (1.1%) had a G/P treatment interruption of ≥1 day, with an SVR12 rate of 93.9% (31/33). No virologic failures occurred. DISCUSSION These findings support the impact of treatment duration on adherence rates and further reinforce the concept of "treatment forgiveness" with direct-acting antivirals.
Collapse
|
22
|
Havens JR, Schaninger T, Fraser H, Lofwall M, Staton M, Young AM, Hoven A, Walsh SL, Vickerman P. Eliminating hepatitis C in a rural Appalachian county: protocol for the Kentucky Viral Hepatitis Treatment Study (KeY Treat), a phase IV, single-arm, open-label trial of sofosbuvir/velpatasvir for the treatment of hepatitis C. BMJ Open 2021; 11:e041490. [PMID: 34226208 PMCID: PMC8258565 DOI: 10.1136/bmjopen-2020-041490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES The overall goal of the Kentucky Viral Hepatitis Treatment Study (KeY Treat) is to eliminate hepatitis C transmission from a county in Appalachian Kentucky by removing the barriers to accessing hepatitis C virus (HCV) treatment. METHODS/ANALYSIS KeY Treat is a phase IV, open-label, single-arm clinical trial of sofosbuvir/velpatasvir (SOF/VEL) for the treatment of viraemic HCV infections. Those eligible for KeY Treat are at least 18 years of age, viraemic and are residents of the target county. Pregnant women are not eligible. Rapid HCV RNA screening is used to determine eligibility, and those with a quantifiable viral load (VL) consenting to participate initiate SOF/VEL on the same day. All pharmacologic treatment and related medical care is provided free of charge using a non-specialist provider model. Follow-up visits occur at 2, 6 and 12 weeks during treatment to assess medication adherence (measured via VL and self-report), side effects and engagement in risk behaviours. Post-treatment visits occur at 12 weeks (sustained virologic response (SVR12) visit), 6 months and 12 months post-treatment completion to assess re-infection. A control county has also been identified, and prevalence and incidence of chronic HCV infections will be compared with the target community longitudinally. The primary outcome to assess elimination is SVR12. However, several outcomes will be measured to assess the effectiveness of removing the barriers to HCV treatment, including treatment entry, completion and re-infection. Analyses will be conducted via a generalised linear model framework that can incorporate flexible covariate adjustment and multiple outcome types with a compatible link function. Mathematical modelling will be completed assessing the impact and cost-effectiveness of the intervention. ETHICS AND DISSEMINATION KeY Treat has been approved by the Institutional Review Board at the University of Kentucky. Results from KeY Treat will be presented at conferences and published in peer-reviewed journals. TRIAL REGISTRATION NUMBER NCT03949764.
Collapse
Affiliation(s)
- Jennifer R Havens
- Behavioral Science, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Takako Schaninger
- Infectious Diseases, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Hannah Fraser
- Population Health Sciences, University of Bristol, Bristol, UK
| | - Michelle Lofwall
- Behavioral Science, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Michele Staton
- Behavioral Science, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - April M Young
- Epidemiology, University of Kentucky College of Public Health, Lexington, Kentucky, USA
| | - Ardis Hoven
- Infectious Diseases, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Sharon L Walsh
- Behavioral Science, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Peter Vickerman
- Population Health Sciences, University of Bristol, Bristol, UK
- London School of Hygiene & Tropical Medicine, London, UK
| |
Collapse
|
23
|
Sandmann L, Deppe J, Beier C, Ohlendorf V, Schneider J, Wedemeyer H, Wedegärtner F, Cornberg M, Maasoumy B. Reaching the Unreachable: Strategies for HCV Eradication in Patients With Refractory Opioid Addiction-A Real-world Experience. Open Forum Infect Dis 2021; 8:ofab325. [PMID: 34377724 PMCID: PMC8339280 DOI: 10.1093/ofid/ofab325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 06/16/2021] [Indexed: 12/18/2022] Open
Abstract
To achieve global hepatitis C virus (HCV) eradication, barriers prohibiting treatment access need to be overcome. We established a strategy to initiate antiviral therapy in patients with severe, refractory heroin addiction. All patients achieved sustained virological response. Outreach programs of hepatologists might be a reasonable way to overcome barriers to HCV treatment.
Collapse
Affiliation(s)
- Lisa Sandmann
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Julian Deppe
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany.,Patrida Medizinisches Versorgungszentrum, Hannover, Germany
| | - Christoph Beier
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Valerie Ohlendorf
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Julia Schneider
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Heiner Wedemeyer
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany.,German Center for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Hannover, Germany
| | - Felix Wedegärtner
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany
| | - Markus Cornberg
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany.,German Center for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Hannover, Germany.,Centre for Individualised Infection Medicine (CiiM), Helmholtz Centre for Infection Research, Hannover, Germany
| | - Benjamin Maasoumy
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany.,German Center for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Hannover, Germany.,Centre for Individualised Infection Medicine (CiiM), Helmholtz Centre for Infection Research, Hannover, Germany
| |
Collapse
|
24
|
Bartlett SR, Wong S, Yu A, Pearce M, MacIsaac J, Nouch S, Adu P, Wilton J, Samji H, Clementi E, Velasquez H, Jeong D, Binka M, Alvarez M, Wong J, Buxton J, Krajden M, Janjua NZ. The impact of current opioid agonist therapy on hepatitis C virus treatment initiation among people who use drugs from in the DAA era: A population-based study. Clin Infect Dis 2021; 74:575-583. [PMID: 34125883 DOI: 10.1093/cid/ciab546] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Evidence that opioid agonist therapy (OAT) is associated with increased odds of hepatitis C virus (HCV) treatment initiation among people who use drugs (PWUD) is emerging. The objective of this study was to determine the association between current OAT and HCV treatment initiation among PWUD in a population-level linked administrative dataset. METHODS The British Columbia (BC) Hepatitis Testers Cohort was used for this study, which includes all people tested for or diagnosed with HCV in BC, linked to medical visits, hospitalizations, laboratory, prescription drug, and mortality data from 1992 until 2019. PWUD with injecting drug use or opioid use disorder and chronic HCV infection were identified for inclusion in this study. HCV treatment initiation was the main outcome, and subdistribution proportional hazards modeling was used to assess the relationship with current OAT. RESULTS 13,803 PWUD with chronic HCV were included in this study. Among those currently on OAT at the end of the study period, 47% (2,704/5,770) had started HCV treatment, whereas 22% (1778/8033) of those not currently on OAT has started HCV treatment .. Among PWUD with chronic HCV infection, current OAT was associated with higher likelihood of HCV treatment initiation in time to event analysis (adjusted hazard ratio 1.84 [95%CI, 1.50, 2.26]). CONCLUSIONS Current OAT was associated with a higher likelihood of HCV treatment initiation. However, many PWUD with HCV currently receiving OAT have yet to receive HCV treatment. Enhanced integration between substance use care and HCV treatment is needed to improve the overall health of PWUD.
Collapse
Affiliation(s)
- Sofia R Bartlett
- British Columbia Centre for Disease Control, Vancouver, BC, Canada.,Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Stanley Wong
- British Columbia Centre for Disease Control, Vancouver, BC, Canada
| | - Amanda Yu
- British Columbia Centre for Disease Control, Vancouver, BC, Canada
| | - Margo Pearce
- British Columbia Centre for Disease Control, Vancouver, BC, Canada.,School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Julia MacIsaac
- Division of Addiction Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Susan Nouch
- Department of Family and Community Practice, Vancouver Coastal Health, Vancouver, BC, Canada.,Department of Family Practice, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Prince Adu
- British Columbia Centre for Disease Control, Vancouver, BC, Canada.,School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - James Wilton
- British Columbia Centre for Disease Control, Vancouver, BC, Canada
| | - Hasina Samji
- British Columbia Centre for Disease Control, Vancouver, BC, Canada.,Faculty of Health Sciences, Simon Fraser University, Vancouver, BC, Canada
| | - Emilia Clementi
- British Columbia Centre for Disease Control, Vancouver, BC, Canada.,School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Hector Velasquez
- British Columbia Centre for Disease Control, Vancouver, BC, Canada
| | - Dahn Jeong
- British Columbia Centre for Disease Control, Vancouver, BC, Canada.,School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Mawuena Binka
- British Columbia Centre for Disease Control, Vancouver, BC, Canada
| | - Maria Alvarez
- British Columbia Centre for Disease Control, Vancouver, BC, Canada
| | - Jason Wong
- British Columbia Centre for Disease Control, Vancouver, BC, Canada.,School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Jane Buxton
- British Columbia Centre for Disease Control, Vancouver, BC, Canada.,School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Mel Krajden
- British Columbia Centre for Disease Control, Vancouver, BC, Canada.,Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Naveed Z Janjua
- British Columbia Centre for Disease Control, Vancouver, BC, Canada.,School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| |
Collapse
|
25
|
Didiya R, Gyenwali D, Pokhrel TN, Devkota S, Rai AB, Shedain PR, Sharma M, Shrestha MK, Imran M, Kadirov Z, Dahal BP, K. C. P, Ojha S, Pokhrel KN. Community led testing among people who inject drugs: A community centered model to find new cases of HIV and Hepatitis C in Nepal. PLoS One 2021; 16:e0252490. [PMID: 34048484 PMCID: PMC8162586 DOI: 10.1371/journal.pone.0252490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 05/15/2021] [Indexed: 11/29/2022] Open
Abstract
Background People who inject drugs (PWIDs) have sub-optimal HIV and HCV testing as the available testing services are inadequate in low and middle-income countries. We examined a model of Community-Led Testing (CLT) in Nepal, exploring the feasibility of HIV and HCV testing by trained lay service providers who had similar backgrounds to those of PWIDs. We also assessed the prevalence of HIV and HCV within this study population and the associated risk factors among PWIDs. Methods A mix-methods cross-sectional study was conducted among 1029 PWIDs in five major districts of Nepal from July 2019 to February 2020. Trained PWID peers performed the screening for HIV and HCV using Rapid Diagnostic Test (RDT) kits. Acceptability and feasibility of the testing was assessed. The participants’ sociodemographic characteristics and injecting and non-injecting risk characteristics were determined. The association of risk and prevention characteristics with testing results were assessed using multiple logistic regression. Results PWIDs shared that the test providers were friendly and competent in counseling and testing. Of total PWIDs (n = 1,029), 20.6% were HCV-positive and 0.2% were HIV-positive. HCV positivity was associated with needle sharing (AOR: 1.83, 95% CI: 1.27,2.64; p = 0.001) and reuse of syringe/needle (AOR: 2.26; 95% CI: 1.34, 3.79; p = 0.002). In addition, PWIDs were more likely to be HCV-positive who started opioid substitution therapy (OST) (AOR: 1.88, 95% CI: 1.26, 2.80, p = 0.002) and attended the rehabilitation center (AOR: 1.66, 95% CI: 1.10, 2.53, p = 0.017). Conclusions This CLT model was found to be a novel approach of testing of HIV and HCV which was acceptable to PWIDs in Nepal and showed the high prevalence of HCV and its association with injecting-related risk behaviors and being users of OST and rehabilitation. The findings highlight the need of community-led testing in hotspots, OST settings, and rehabilitation centers to screen new HIV and HCV infections.
Collapse
Affiliation(s)
- Rajesh Didiya
- National Association of People Living with HIV/AIDS in Nepal (NAP+N), Kathmandu, Bagmati, Nepal
| | - Deepak Gyenwali
- National Association of People Living with HIV/AIDS in Nepal (NAP+N), Kathmandu, Bagmati, Nepal
| | - Tara Nath Pokhrel
- National Centre for AIDS and STD Control (NCASC), Kathmandu, Bagmati, Nepal
| | - Sudha Devkota
- National Centre for AIDS and STD Control (NCASC), Kathmandu, Bagmati, Nepal
| | - Amrit Bikram Rai
- National Association of People Living with HIV/AIDS in Nepal (NAP+N), Kathmandu, Bagmati, Nepal
| | | | - Mukunda Sharma
- National Public Health Laboratory (NPHL), Kathmandu, Bagmati, Nepal
| | | | - Muhammad Imran
- Save the Children, Fairfield, Connecticut, United States of America
| | - Zakir Kadirov
- Save the Children, Nepal Country Office, KPRA Project, Kathmandu, Bagmati, Nepal
| | - Bhawani Prasad Dahal
- Save the Children, Nepal Country Office, KPRA Project, Kathmandu, Bagmati, Nepal
| | | | - Sabir Ojha
- National Association of People Living with HIV/AIDS in Nepal (NAP+N), Kathmandu, Bagmati, Nepal
| | - Khem Narayan Pokhrel
- National Association of People Living with HIV/AIDS in Nepal (NAP+N), Kathmandu, Bagmati, Nepal
- * E-mail:
| |
Collapse
|
26
|
Buggisch P, Heiken H, Mauss S, Weber B, Jung MC, Görne H, Heyne R, Hinrichsen H, Hidde D, König B, Pires dos Santos AG, Niederau C, Berg T. Barriers to initiation of hepatitis C virus therapy in Germany: A retrospective, case-controlled study. PLoS One 2021; 16:e0250833. [PMID: 33970940 PMCID: PMC8109809 DOI: 10.1371/journal.pone.0250833] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 04/14/2021] [Indexed: 01/18/2023] Open
Abstract
Despite the availability of highly effective and well-tolerated direct-acting antivirals, not all patients with chronic hepatitis C virus infection receive treatment. This retrospective, multi-centre, noninterventional, case-control study identified patients with chronic hepatitis C virus infection initiating (control) or not initiating (case) treatment at 43 sites in Germany from September 2017 to June 2018. It aimed to compare characteristics of the two patient populations and to identify factors involved in patient/physician decision to initiate/not initiate chronic hepatitis C virus treatment, with a particular focus on historical barriers. Overall, 793 patients were identified: 573 (72%) who received treatment and 220 (28%) who did not. In 42% of patients, the reason for not initiating treatment was patient wish, particularly due to fear of treatment (17%) or adverse events (13%). Other frequently observed reasons for not initiating treatment were in accordance with known historical barriers for physicians to initiate therapy, including perceived or expected lack of compliance (14.5%), high patient age (10.9%), comorbidities (15.0%), alcohol abuse (9.1%), hard drug use (7.7%), and opioid substitution therapy (4.5%). Patient wish against therapy was also a frequently reported reason for not initiating treatment in the postponed (35.2%) and not planned (47.0%) subgroups; of note, known historical factors were also common reasons for postponing treatment. Real-world and clinical trial evidence is accumulating, which suggests that such historical barriers do not negatively impact treatment effectiveness. Improved education is key to facilitate progress towards the World Health Organization target of eliminating viral hepatitis as a major public health threat by 2030.
Collapse
Affiliation(s)
- Peter Buggisch
- ifi-Institute for Interdisciplinary Medicine, Hamburg, Germany
| | | | - Stefan Mauss
- Center for HIV and Hepatogastroenterology, Düsseldorf, Germany
| | - Bernd Weber
- Praxiszentrum Friedrichsplatz / Competence Center Addiction, Kassel, Germany
| | | | - Herbert Görne
- MediZentrum Hamburg, Praxis für Suchtmedizin, Hamburg, Germany
| | | | | | - Dennis Hidde
- AbbVie Deutschland GmbH & Co. KG, Wiesbaden, Germany
| | - Bettina König
- AbbVie Deutschland GmbH & Co. KG, Wiesbaden, Germany
| | | | - Claus Niederau
- Katholisches Klinikum Oberhausen, St. Josef-Hospital, Klinik für Innere Medizin, Akademisches Lehrkrankenhaus der Universität Duisburg-Essen, Oberhausen, Germany
| | - Thomas Berg
- Division of Hepatology, Department of Medicine II, Leipzig University Medical Center, Leipzig, Germany
| |
Collapse
|
27
|
Harney BL, Brereton R, Whitton B, Pietrzak D, Paige E, Roberts SK, Birks S, Saraf S, Hellard ME, Doyle JS. Hepatitis C treatment in a co-located mental health and alcohol and drug service using a nurse-led model of care. J Viral Hepat 2021; 28:771-778. [PMID: 33599036 DOI: 10.1111/jvh.13487] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 02/01/2021] [Indexed: 12/13/2022]
Abstract
Hepatitis C virus (HCV) is more prevalent among people with experience of severe mental illness compared to the general population, due in part to higher levels of injecting drug use. Delivering HCV care through mental health services may reduce barriers to care and improve outcomes. A nurse-led HCV program was established in a co-located mental health and addiction service in Melbourne, Australia. People with a history of injecting drug use, including current use, were referred for HCV testing by nurses, with support provided on-site from a general practitioner and remotely from infectious disease and hepatology specialists. A nurse practitioner, general practitioner or specialists were able to prescribe HCV treatment. One-hundred and thirty people were referred to the nurse-led service, among whom 112 (86%) were engaged in care. Of those 112, 84 (75%) were found to have detectable HCV RNA, 70 (83%) commenced treatment; 28 (40%) prescriptions were nurse initiated, 19 (27%) were general practitioner initiated and 20 (29%) were prescribed from hospital clinics or elsewhere. All people with an SVR result (48/70) achieved HCV cure (intention to treat SVR 69%, per-protocol SVR 100%). Treatment commencement was highest among people prescribed opioid agonist therapy (28/29, 96%) compared to those who were not (18/26, 69%). In conclusion, a nurse-led, HCV service for people with severe mental illness including pathways to specialist support when needed can achieve high treatment uptake and cure. Further implementation work is required to improve treatment uptake, particularly among people not prescribed opioid agonist therapy, and to improve follow-up for SVR testing.
Collapse
Affiliation(s)
- Brendan L Harney
- Department of Infectious Diseases, Alfred Health and Monash University, Melbourne, Vic, Australia.,Disease Elimination Program, Burnet Institute, Melbourne, Vic, Australia
| | - Rebecca Brereton
- St Kilda Road & Southcity Clinic, Alfred Community Mental & Addiction Health, Melbourne, Vic, Australia
| | - Bradley Whitton
- Department of Infectious Diseases, Alfred Health and Monash University, Melbourne, Vic, Australia
| | - Danusia Pietrzak
- St Kilda Road & Southcity Clinic, Alfred Community Mental & Addiction Health, Melbourne, Vic, Australia
| | - Emma Paige
- Department of Infectious Diseases, Alfred Health and Monash University, Melbourne, Vic, Australia
| | - Stuart K Roberts
- Department of Gastroenterology, Alfred Health, Melbourne, Vic, Australia.,Department of Medicine, Monash University, Melbourne, Vic, Australia
| | - Susanne Birks
- St Kilda Road & Southcity Clinic, Alfred Community Mental & Addiction Health, Melbourne, Vic, Australia
| | - Sudeep Saraf
- St Kilda Road & Southcity Clinic, Alfred Community Mental & Addiction Health, Melbourne, Vic, Australia
| | - Margaret E Hellard
- Department of Infectious Diseases, Alfred Health and Monash University, Melbourne, Vic, Australia.,Disease Elimination Program, Burnet Institute, Melbourne, Vic, Australia
| | - Joseph S Doyle
- Department of Infectious Diseases, Alfred Health and Monash University, Melbourne, Vic, Australia.,Disease Elimination Program, Burnet Institute, Melbourne, Vic, Australia
| |
Collapse
|
28
|
Goodyear T, Brown H, Browne AJ, Hoong P, Ti L, Knight R. "Stigma is where the harm comes from": Exploring expectations and lived experiences of hepatitis C virus post-treatment trajectories among people who inject drugs. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2021; 96:103238. [PMID: 33902968 DOI: 10.1016/j.drugpo.2021.103238] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 03/16/2021] [Accepted: 03/21/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND The advent of direct-acting antiviral (DAA) medications has facilitated opportunities to treat hepatitis C virus (HCV) among people who inject drugs (PWID). However, there remains a need for data about how to optimally support PWID throughout DAA post-treatment trajectories, including with regard to re-infection prevention. The objective of this study is therefore to identify how PWID with lived experience of HCV describe their expectations and experiences related to health and social outcomes, contexts, and substance use practices following completion of DAA treatment. METHODS We thematically analyzed data from in-depth, semi-structured interviews, conducted between January and June 2018, in Vancouver, Canada, with a purposive sample (n = 50) of PWID at various stages of DAA treatment (e.g., pre, peri, post). RESULTS Our analysis yielded three themes. First, while participants had hoped to experience holistic enhancements in wellbeing following HCV cure, discussions of actual post-treatment experiences tended to be located in physical health (e.g., increased energy). Second, participants often pointed to the ways in which HCV-related and other stigmas had restricted opportunities for health and healthcare access. Participants therefore identified stigma-reduction as a key motivator of HCV cure, and while reductions in internalized stigma were sometimes achieved, participants underscored that other forms of enacted stigma (e.g., related to: substance use, HIV, poverty) had continued to feature prominently in their post-treatment lives. Third, participants described considerable knowledge about how to prevent HCV re-infection following cure, but they also expressed apprehensiveness about how socio-structural barriers, including stigma and criminalization, could interfere with harm reduction and re-infection prevention efforts. CONCLUSIONS DAAs are transforming the health and wellbeing of some PWID. Yet, HCV-related policy must extend beyond the scale-up of DAAs to include concerted public health investments, including anti-stigma efforts and improvements to the social welfare system, to meaningfully advance equity in PWID's post-treatment trajectories and outcomes.
Collapse
Affiliation(s)
- Trevor Goodyear
- School of Nursing, University of British Columbia, Vancouver, Canada; British Columbia Centre on Substance Use, Vancouver, Canada
| | - Helen Brown
- School of Nursing, University of British Columbia, Vancouver, Canada
| | - Annette J Browne
- School of Nursing, University of British Columbia, Vancouver, Canada
| | - Peter Hoong
- British Columbia Centre on Substance Use, Vancouver, Canada
| | - Lianping Ti
- British Columbia Centre on Substance Use, Vancouver, Canada; Department of Medicine, University of British Columbia, Vancouver, Canada
| | - Rod Knight
- British Columbia Centre on Substance Use, Vancouver, Canada; Department of Medicine, University of British Columbia, Vancouver, Canada.
| |
Collapse
|
29
|
Fong C, Mateu-Gelabert P, Ciervo C, Eckhardt B, Aponte-Melendez Y, Kapadia S, Marks K. Medical provider stigma experienced by people who use drugs (MPS-PWUD): Development and validation of a scale among people who currently inject drugs in New York City. Drug Alcohol Depend 2021; 221:108589. [PMID: 33621804 PMCID: PMC8029599 DOI: 10.1016/j.drugalcdep.2021.108589] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 01/25/2023]
Abstract
BACKGROUND Stigmatizing attitudes towards people who use drugs (PWUD) impact their access and retention in health care. Current measures of PWUD stigma in medical settings are limited. Therefore, we developed and validated theMedical Provider Stigma Experienced by PWUD (MPS-PWUD) scale. METHODS As part of an ongoing clinical trial, we recruited HCV RNA positive people who inject drugs in New York City. Based on 164 participants, principal component analysis (PCA) was conducted on fifteen stigma items answered on a 5-point Likert scale. We evaluated internal consistency using Cronbach's alpha coefficient and assessed construct validity by comparing stigma levels with willingness to communicate health concerns with medical providers and likelihood to seek HCV treatment. RESULTS PCA identified a 9-item scale with two components of stigmatization that explained 60.8 % of the total variance and overall high internal consistency (alpha = 0.90). Theenacted stigma (alpha = 0.90) consisted of 6 scale items related to the medical providers' stigmatizing actions or perceptions. The internalized stigma component (alpha = 0.84) included 3 scale items related to PWUD's shame or drug use disclosure. As hypothesized, higher levels of either stigma were associated with less likelihood to openly communicate with medical providers (p < 0.005). Participants with a higher level of enacted stigma were less likely to seek HCV treatment (p = 0.011). CONCLUSIONS The validated MPS-PWUD scale could help healthcare providers, harm reduction services and researchers measure stigma experienced by PWUD in medical settings in efforts to minimize the impact of stigma on limiting access to and retention of care for PWUD.
Collapse
Affiliation(s)
- Chunki Fong
- CUNY Graduate School of Public Health and Health Policy, Institute for Implementation Science in Population Health (ISPH) 55 West 125th Street, New York, NY 10027, USA.
| | - Pedro Mateu-Gelabert
- CUNY Graduate School of Public Health and Health Policy, Institute for Implementation Science in Population Health (ISPH) 55 West 125th Street, New York, NY 10027, USA
| | - Courtney Ciervo
- CUNY Graduate School of Public Health and Health Policy, Institute for Implementation Science in Population Health (ISPH) 55 West 125th Street, New York, NY 10027, USA
| | | | - Yesenia Aponte-Melendez
- CUNY Graduate School of Public Health and Health Policy, Institute for Implementation Science in Population Health (ISPH) 55 West 125th Street, New York, NY 10027, USA
| | - Shashi Kapadia
- Weill Cornell Medicine, 1305 York Ave 4th Floor, New York, NY, 10021, USA
| | - Kristen Marks
- Weill Cornell Medicine, 1305 York Ave 4th Floor, New York, NY, 10021, USA
| |
Collapse
|
30
|
Trooskin SB, Dore G, Kostman J. We Must Do Better: Addressing HCV Treatment Barriers in Persons Who Inject Drugs in the United States. J Infect Dis 2021; 222:S773-S781. [PMID: 33245349 DOI: 10.1093/infdis/jiaa574] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The opioid epidemic in the United States, along with a lack of adequate harm reduction services, has contributed to a sharp rise in hepatitis C virus (HCV) infections. Despite considerable evidence of the effectiveness of HCV treatment in people who inject drugs (PWID), and recommendations from clinical guidelines to prioritize treatment in PWID, there are multiple barriers to broad uptake of HCV treatment. These barriers exist at the systems level, as well as at the level of medical providers and patients. Interventions to remove treatment barriers in the United States include harm reduction services, simplifying HCV testing algorithms, improved linkage to HCV care services, and application of new treatment models including colocating services at substance use disorder treatment programs. By following the lead of other countries who have addressed the barriers to HCV treatment, the United States has opportunities to do better in addressing the consequences of the opioid epidemic, including chronic HCV infection.
Collapse
Affiliation(s)
- Stacey B Trooskin
- Philadelphia FIGHT Community Health Centers, Philadelphia, Pennsylvania, USA.,Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Gregory Dore
- The Kirby Institute, University of New South Wales, Sydney, Australia
| | - Jay Kostman
- Philadelphia FIGHT Community Health Centers, Philadelphia, Pennsylvania, USA
| |
Collapse
|
31
|
Goodyear T, Brown H, Browne AJ, Hoong P, Ti L, Knight R. "I want to get better, but…": identifying the perceptions and experiences of people who inject drugs with respect to evolving hepatitis C virus treatments. Int J Equity Health 2021; 20:81. [PMID: 33740984 PMCID: PMC7977167 DOI: 10.1186/s12939-021-01420-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 03/04/2021] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND The advent of highly tolerable and efficacious direct-acting antiviral (DAA) medications has transformed the hepatitis C virus (HCV) treatment landscape. Yet, people who inject drugs (PWID) - a population with inequitably high rates of HCV and who face significant socio-structural barriers to healthcare access - continue to have disproportionately low rates of DAA uptake. The objective of this study is to explore how PWID with lived experience of HCV perceive and experience DAA treatment, in a setting with universal coverage of these medications since 2018. METHODS Informed by a critical interpretive framework, we thematically analyze data from in-depth, semi-structured interviews conducted between January and June 2018 in Vancouver, Canada, with a purposive sample (n = 56) of PWID at various stages (e.g., pre, peri, post) of DAA treatment. RESULTS The analysis yielded three key themes: (i) life with HCV, (ii) experiences with and perceptions of evolving HCV treatments, and (iii) substance use and the uptake of DAA treatments. First, participants described how health and healthcare conditions, such as the deprioritizing of HCV (e.g., due to: being asymptomatic, healthcare provider inaction, gatekeeping) and catalysts to care (e.g., symptom onset, treatment for co-morbidities) shaped DAA treatment motivation and access. Second, participants described how individual and community-level accounts of evolving HCV treatments, including skepticism following negative experiences with Interferon-based treatment and uncertainty regarding treatment eligibility, negatively influenced willingness and opportunities to access DAAs. Concurrently, participants described how peer and community endorsement of DAAs was positively associated with treatment uptake. Third, participants favoured HCV care that was grounded in harm reduction, which included the integration of DAAs with other substance use-related services (e.g., opioid agonist therapy, HIV care), and which was often contrasted against abstinence-focused care wherein substance use is framed as a contraindication to HCV treatment access. CONCLUSIONS These findings underscore several equity-oriented healthcare service delivery and clinician adaptations that are required to scale up DAAs among PWID living with HCV, including the provision of harm reduction-focused, non-stigmatizing, integrated, and peer-led care that responds to power differentials.
Collapse
Affiliation(s)
- Trevor Goodyear
- School of Nursing, University of British Columbia, Vancouver, Canada
- British Columbia Centre on Substance Use, 400-1045 Howe St, V6Z 2A9, Vancouver, BC, Canada
| | - Helen Brown
- School of Nursing, University of British Columbia, Vancouver, Canada
| | - Annette J Browne
- School of Nursing, University of British Columbia, Vancouver, Canada
| | - Peter Hoong
- British Columbia Centre on Substance Use, 400-1045 Howe St, V6Z 2A9, Vancouver, BC, Canada
| | - Lianping Ti
- British Columbia Centre on Substance Use, 400-1045 Howe St, V6Z 2A9, Vancouver, BC, Canada
- Department of Medicine, University of British Columbia, Vancouver, Canada
| | - Rod Knight
- British Columbia Centre on Substance Use, 400-1045 Howe St, V6Z 2A9, Vancouver, BC, Canada.
- Department of Medicine, University of British Columbia, Vancouver, Canada.
| |
Collapse
|
32
|
Kapadia SN, Katzman C, Fong C, Eckhardt BJ, Guarino H, Mateu-Gelabert P. Hepatitis C testing and treatment uptake among young people who use opioids in New York City: A cross-sectional study. J Viral Hepat 2021; 28:326-333. [PMID: 33141503 PMCID: PMC8207521 DOI: 10.1111/jvh.13437] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 09/22/2020] [Accepted: 10/23/2020] [Indexed: 12/16/2022]
Abstract
Young people who use drugs have a rising hepatitis C (HCV) incidence in the United States, but they may face barriers to testing and treatment adoption due to stigma. We conducted a cross-sectional study of New York City residents aged 18-29 years who reported non-medical prescription opioid and/or heroin use in the past 30 days. Participants were recruited from the community between 2014-2016 via respondent-driven sampling. Participants completed an in-person structured survey that included questions about HCV testing and treatment and received HCV antibody testing. There were 539 respondents: 353 people who inject drugs (PWID) and 186 non-PWID. For PWID, median age was 25 years, 65% were male and 73% non-Hispanic White. For non-PWID, median age was 23 years, 73% were male and 39% non-Hispanic White. 20% of PWID and 54% of non-PWID had never been tested for HCV (P < .001). Years since first injection (aOR 1.16, CI: 1.02-1.32, P = .02) and history of substance use treatment (aOR 3.17, CI: 1.53-6.61, P = .02) were associated with prior testing among PWID. The seroprevalence of HCV among PWID was 25%, adjusted for sampling weights. Of the 75 who were aware of their HCV-positive status, 53% had received HCV-related medical care, and 28% had initiated treatment. HCV prevalence among young PWID is high, and many have never been tested. Injection experience and treatment engagement is associated with testing. Interventions to increase testing earlier in injection careers, and to improve linkage to HCV treatment, will be critical for young PWID.
Collapse
Affiliation(s)
- Shashi N Kapadia
- Division of Infectious Diseases, Weill Cornell Medicine, New York, NY, USA
| | - Caroline Katzman
- Department of Medicine, New York University School of Medicine, New York, NY, USA
| | - Chunki Fong
- Institute for Implementation Science in Population Health, City University of New York Graduate School of Public Health & Health Policy, New York, NY, USA
| | - Benjamin J Eckhardt
- Department of Medicine, New York University School of Medicine, New York, NY, USA
| | - Honoria Guarino
- Institute for Implementation Science in Population Health, City University of New York Graduate School of Public Health & Health Policy, New York, NY, USA
| | - Pedro Mateu-Gelabert
- Department of Community Health and Social Sciences, City University of New York Graduate School of Public Health & Health Policy, New York, NY, USA
| |
Collapse
|
33
|
Marshall AD, Hopwood M, Grebely J, Treloar C. Applying a diffusion of innovations framework to the scale-up of direct-acting antiviral therapies for hepatitis C virus infection: Identified challenges for widespread implementation. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2020; 86:102964. [PMID: 33059118 DOI: 10.1016/j.drugpo.2020.102964] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS Interferon-free, direct-acting antivirals (DAAs) for hepatitis C virus (HCV) offer much promise to achieve World Health Organization targets by 2030. However, impediments at the practitioner and health-system level will continue to obstruct the scale-up of DAAs worldwide unless identified and acted upon. Applying a diffusion of innovations framework, the aim of this study was to identify structural factors impacting practitioner experiences of managing HCV treatment. METHODS In-depth, semi-structured, telephone interviews took place between September 2018 and April 2019 to investigate barriers and facilitators for engaging in HCV management and DAA therapy amongst general practitioners (GPs) who prescribe opioid agonist therapy and drug and alcohol specialists in Australia. Interviews were transcribed verbatim, de-identified, and coded, and data were analysed with iterative categorisation and thematic analysis using Everett Rogers's diffusion of innovation framework. RESULTS amongst 30 participants (12 GPs, 18 drug and alcohol specialists), several structural factors were reported to impede practitioner efforts to deliver optimal HCV care. Two primary themes were explored: contextual factors for the diffusion of DAA therapies, including attempts by participants to shift clinic culture and respond to siloed health structures, and adopter factors. Some participants chose to 'rock the boat' by circumventing clinic protocol and HCV guidelines to treat more clients, effectively shifting adopter categories to become greater advocates in HCV care. Also, while a role for GPs as the 'new adopters' in HCV management was discussed, many participants expressed uncertainty as to how much GPs should become involved in the diffusion of DAA therapies more widely. CONCLUSIONS Reducing the global burden of HCV infection will not be possible without the widespread delivery of HCV treatment amongst practitioners. Practitioners and health workers require leadership and resources from health authorities so that the individual and population-level benefits of DAA therapy are realised.
Collapse
Affiliation(s)
- Alison D Marshall
- The Kirby Institute, UNSW Sydney, Sydney, Australia; The Centre for Social Research in Health, UNSW Sydney, Sydney, Australia.
| | - Max Hopwood
- The Centre for Social Research in Health, UNSW Sydney, Sydney, Australia
| | | | - Carla Treloar
- The Centre for Social Research in Health, UNSW Sydney, Sydney, Australia
| |
Collapse
|
34
|
Sherbuk JE, Knick TK, Canan C, Ross P, Helbert B, Cantrell ES, Cantrell CJ, Stallings R, Barron N, Jordan D, McManus KA, Dillingham R. Development of an Interdisciplinary Telehealth Model of Provider Training and Comprehensive Care for Hepatitis C and Opioid Use Disorder in a High-Burden Region. J Infect Dis 2020; 222:S354-S364. [PMID: 32877562 PMCID: PMC7467249 DOI: 10.1093/infdis/jiaa141] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Hepatitis C virus (HCV) and the opioid epidemic disproportionately affect the Appalachian region. Geographic and financial barriers prevent access to specialty care. Interventions are needed to address the HCV-opioid syndemic in this region. METHODS We developed an innovative, collaborative telehealth model in Southwest Virginia featuring bidirectional referrals from and to comprehensive harm reduction (CHR) programs and office-based opioid therapy (OBOT), as well as workforce development through local provider training in HCV management. We aimed to (1) describe the implementation process of provider training and (2) assess the effectiveness of the telehealth model by monitoring patient outcomes in the first year. RESULTS The provider training model moved from a graduated autonomy model with direct specialist supervision to a 1-day workshop with parallel tracks for providers and support staff followed by monthly case conferences. Forty-four providers and support staff attended training. Eight providers have begun treating independently. For the telehealth component, 123 people were referred, with 62% referred from partner OBOT or CHR sites; 103 (84%) attended a visit, 93 (76%) completed the treatment course, and 61 (50%) have achieved sustained virologic response. Rates of sustained virologic response did not differ by receipt of treatment for opioid use disorder. CONCLUSIONS Providers demonstrated a preference for an in-person training workshop, though further investigation is needed to determine why only a minority of those trained have begun treating HCV independently. The interdisciplinary nature of this program led to efficient treatment of hepatitis C in a real-world population with a majority of patients referred from OBOTs and CHR programs.
Collapse
Affiliation(s)
- Jacqueline E Sherbuk
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - Terry Kemp Knick
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - Chelsea Canan
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - Patrice Ross
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - Bailey Helbert
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | | | | | - Rachel Stallings
- Virginia Department of Health, Division of Disease Prevention, Richmond, Virginia, USA
| | - Nicole Barron
- Virginia Department of Health, Division of Disease Prevention, Richmond, Virginia, USA
| | - Diana Jordan
- Virginia Department of Health, Division of Disease Prevention, Richmond, Virginia, USA
| | - Kathleen A McManus
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - Rebecca Dillingham
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| |
Collapse
|
35
|
Catlett B, Bajis S, Starr M, Dore GJ, Hajarizadeh B, Cunningham PH, Applegate TL, Grebely J. Evaluation of the Aptima HCV Quant Dx Assay for Hepatitis C Virus RNA Detection from Fingerstick Capillary Dried Blood Spot and Venepuncture-Collected Samples. J Infect Dis 2020; 223:818-826. [PMID: 32710758 DOI: 10.1093/infdis/jiaa442] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 07/21/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Simplified diagnostic strategies are needed increase hepatitis C virus (HCV) testing to determine active infection and link people into treatment. Collection methods such as dried blood spots (DBS) have advantages over standard phlebotomy, especially within marginalized populations. METHODS We evaluated the diagnostic performance of the Aptima HCV Quant assay for the quantification and detection of HCV RNA from paired DBS and venepuncture samples. Specimens were collected from participants enrolled in an Australian observational study. We compared HCV RNA detection from DBS against venepuncture samples (gold standard). RESULTS One hundred sixty-four participants had paired samples and HCV RNA was detected in 45 (27% [95% confidence interval, 21%-35%]) by the Aptima assay in venepuncture samples. Sensitivity of the Aptima assay for HCV RNA quantification from DBS (≥10 IU/mL in plasma) was 100% and specificity was 100%. Sensitivity for HCV RNA detection from DBS was 95.6% and specificity was 94.1%. A small bias in plasma over DBS was observed with good agreement (R2 = 0.96). CONCLUSIONS The Aptima HCV Quant assay detects active infection from DBS samples with acceptable diagnostic performance and is clinically comparable to plasma. These data will strengthen the case for the registration of a DBS kit insert claim, enabling future clinical utility.
Collapse
Affiliation(s)
- Beth Catlett
- Kirby Institute, UNSW Sydney, Sydney, New South Wales, Australia.,New South Wales State Reference Laboratory for HIV, St Vincent's Centre for Applied Medical Research, Darlinghurst, Sydney, New South Wales, Australia
| | - Sahar Bajis
- Kirby Institute, UNSW Sydney, Sydney, New South Wales, Australia
| | - Mitchell Starr
- New South Wales State Reference Laboratory for HIV, St Vincent's Centre for Applied Medical Research, Darlinghurst, Sydney, New South Wales, Australia
| | - Gregory J Dore
- Kirby Institute, UNSW Sydney, Sydney, New South Wales, Australia
| | | | - Philip H Cunningham
- Kirby Institute, UNSW Sydney, Sydney, New South Wales, Australia.,New South Wales State Reference Laboratory for HIV, St Vincent's Centre for Applied Medical Research, Darlinghurst, Sydney, New South Wales, Australia
| | | | - Jason Grebely
- Kirby Institute, UNSW Sydney, Sydney, New South Wales, Australia
| |
Collapse
|
36
|
Yu ML, Chen PJ, Dai CY, Hu TH, Huang CF, Huang YH, Hung CH, Lin CY, Liu CH, Liu CJ, Peng CY, Lin HC, Kao JH, Chuang WL. 2020 Taiwan consensus statement on the management of hepatitis C: Part (II) special populations. J Formos Med Assoc 2020; 119:1135-1157. [PMID: 32354689 DOI: 10.1016/j.jfma.2020.04.002] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 04/05/2020] [Indexed: 12/13/2022] Open
Abstract
Hepatitis C virus (HCV) infection is a silent killer that leads to rapid progression of liver cirrhosis and hepatocellular carcinoma (HCC). High prevalence of HCV infection has been reported in Taiwan, especially in high-risk populations including people who inject drugs (PWID) and patients requiring dialysis. Besides, certain populations merit special considerations due to suboptimal outcome, potential drug-drug interaction, or possible side effect. Therefore, in the second part of this 2-part consensus, the Taiwan Association for the Study of the Liver (TASL) proposes the treatment recommendations for the special population in order to serve as guidance to optimizing the outcome in the direct-acting antiviral (DAA) era. Special populations include patients with acute or recent HCV infection, previous DAA failure, chronic kidney disease, decompensated cirrhosis, HCC, liver and other solid organ transplantations, receiving an HCV viremic organ, hepatitis B virus (HBV) and HCV dual infection, HCV and human immunodeficiency virus (HIV) coinfection, active tuberculosis infection, PWID, bleeding disorders and hemoglobinopathies, children and adolescents, and pregnancy. Moreover, future perspectives regarding the management of hepatitis C are also discussed and summarized in this consensus statement.
Collapse
Affiliation(s)
- Ming-Lung Yu
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Medicine and Hepatitis Research Center, College of Medicine, Center for Cancer Research and Center for Liquid Biopsy, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Pei-Jer Chen
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan; Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Chia-Yen Dai
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Medicine and Hepatitis Research Center, College of Medicine, Center for Cancer Research and Center for Liquid Biopsy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tsung-Hui Hu
- Division of Hepato-Gastroenterology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chung-Feng Huang
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Medicine and Hepatitis Research Center, College of Medicine, Center for Cancer Research and Center for Liquid Biopsy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Hsiang Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Chao-Hung Hung
- Division of Hepato-Gastroenterology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chun-Yen Lin
- Department of Gastroenterology and Hepatology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan; School of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chen-Hua Liu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Chun-Jen Liu
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan; Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Cheng-Yuan Peng
- Center for Digestive Medicine, Department of Internal Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Han-Chieh Lin
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jia-Horng Kao
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan; Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Wan-Long Chuang
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Medicine and Hepatitis Research Center, College of Medicine, Center for Cancer Research and Center for Liquid Biopsy, Kaohsiung Medical University, Kaohsiung, Taiwan
| |
Collapse
|
37
|
Goodyear T, Ti L, Carrieri P, Small W, Knight R. "Everybody living with a chronic disease is entitled to be cured": Challenges and opportunities in scaling up access to direct-acting antiviral hepatitis C virus treatment among people who inject drugs. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2020; 81:102766. [PMID: 32416525 DOI: 10.1016/j.drugpo.2020.102766] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/10/2020] [Accepted: 04/11/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Recent advances in the safety, tolerability, and efficacy of hepatitis C virus (HCV) treatments have led to the introduction of policy changes that include, in some settings, universal coverage of direct-acting antiviral (DAA) treatment for people living with HCV. However, people who inject drugs (PWID), a population with disproportionately high rates of HCV, often experience significant social and structural barriers to care, including when seeking treatment and care for blood-borne viruses. The objective of this study is to identify implementation challenges and opportunities for improving HCV-related care and scaling up DAA treatment for PWID living with HCV in a setting with universal DAA coverage since 2018. METHODS Informed by a critical interpretive framework, this study thematically analyzes data from in-depth, semi-structured interviews conducted between October 2018 and February 2019 with a purposive sample of 15 expert stakeholders (e.g., clinicians, community-based organization representatives, policy makers) related to HCV care or research in British Columbia, Canada. RESULTS Our analysis revealed two key thematics: First, participants described existing challenges for scaling up DAA treatment, including how contextual factors (e.g., housing, stigma) restrict opportunities for PWID to engage in care. Participants also described how strained and compartmentalized health services are onerous to navigate for patients. Second, participants described opportunities for improving HCV-related care through various structural interventions (e.g., improved housing, decriminalization of substance use), and enhanced and more accessible models of care (e.g., decentralized, integrated, outreach-focused, and peer- and nurse-led services). CONCLUSIONS These findings emphasize that several key service delivery and system-level adaptations are required in order to equitably scale up access of DAAs to PWID living with HCV, including policies and programs that are responsive to socio-structural determinants of health.
Collapse
Affiliation(s)
- Trevor Goodyear
- British Columbia Centre on Substance Use, Vancouver, Canada; School of Nursing, University of British Columbia, Vancouver, Canada; School of Population and Public Health, University of British Columbia, Vancouver, Canada
| | - Lianping Ti
- British Columbia Centre on Substance Use, Vancouver, Canada; Department of Medicine, University of British Columbia, Vancouver, Canada
| | - Patrizia Carrieri
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire Régional de la Santé Provence-Alpes-Côte d'Azur, Marseille, France
| | - Will Small
- British Columbia Centre on Substance Use, Vancouver, Canada; Centre for Applied Research in Mental Health and Addiction, Faculty of Health Sciences, Simon Fraser University, Vancouver, Canada
| | - Rod Knight
- British Columbia Centre on Substance Use, Vancouver, Canada; Department of Medicine, University of British Columbia, Vancouver, Canada.
| |
Collapse
|
38
|
Sung JC, Bosh C, Wyatt B, Miller M, Harty A, Del Bello D, Knight S, Dieterich DT, Perumalswami PV, Branch AD. Hepatitis C cure improved patient-reported outcomes in patients with and without liver fibrosis in a prospective study at a large urban medical center. J Viral Hepat 2020; 27:350-359. [PMID: 31742821 DOI: 10.1111/jvh.13234] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 10/09/2019] [Accepted: 10/16/2019] [Indexed: 12/15/2022]
Abstract
Patient-reported outcomes (PROs) are important measures of quality of life. Direct-acting antiviral (DAA) drugs for hepatitis C virus (HCV) improved PROs in clinical trials. We prospectively evaluated the impact of DAA-based HCV cure on PROs and liver-related outcomes in real-world patients at a large urban medical center. The short form (SF)-36 and three additional validated instruments were used. F3-4 fibrosis was defined as > 9.6 kPa by transient elastography (TE); S2-3 steatosis was defined as > 270 dB/m by TE-controlled attenuation parameter (CAP). Data were analysed by paired and unpaired t tests. Patients (n = 16) who did not achieve a sustained virologic response at 12 weeks (SVR12) were excluded. The study achieved its primary endpoint and showed a significant 30% improvement in the SF-36 vitality score, measured baseline to SVR12: 63 versus 82, P < .001 (n = 111). Scores in 24 of 25 PRO domains improved at SVR12 (P < .05). Nearly all gains exceeded 5%, indicating their clinical significance. Transaminase values and liver stiffness improved (decreased) significantly, baseline to SVR12 (P < .005), but steatosis was unchanged (P = .58). Patients with baseline F0-2 fibrosis and those with F3-F4 fibrosis both improved in 22 domains. Patients with baseline S0-S1 steatosis improved in more domains (23) than patients with S2-S3 steatosis (19). At baseline, patients with F3-F4 fibrosis and patients with S2-3 steatosis had worse scores in certain PRO domains than patients with F0-2 fibrosis or S0-S1 steatosis, but this difference resolved by SVR12. HCV cure led to meaningful gains in PROs, and these findings may encourage patients to seek treatment.
Collapse
Affiliation(s)
- Julie C Sung
- Department of Internal Medicine, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Ciara Bosh
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Brooke Wyatt
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Mark Miller
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Alyson Harty
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - David Del Bello
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Sterling Knight
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Douglas T Dieterich
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Ponni V Perumalswami
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Andrea D Branch
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| |
Collapse
|
39
|
Ing Lorenzini K, Girardin F. Direct-acting antiviral interactions with opioids, alcohol or illicit drugs of abuse in HCV-infected patients. Liver Int 2020; 40:32-44. [PMID: 31654604 DOI: 10.1111/liv.14283] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/17/2019] [Accepted: 10/15/2019] [Indexed: 02/13/2023]
Abstract
The hepatitis C virus (HCV) prevalence is extremely high in patients who consume and inject illicit drugs. Concerns about poor adherence and fear of interaction with drugs of abuse could constitute further disincentive for treatment initiation in these patients. We discussed the pharmacokinetics (PKs) and pharmacodynamics (PD) of currently prescribed direct antiviral agents (NSA5 inhibitors: daclatasvir, elbasvir, ledipasvir, pibrentasvir, velpatasvir; NS5B inhibitor: sofosbuvir; NS3/4A protease inhibitors: glecaprevir, grazoprevir, voxilaprevir) and most common substances of abuse (opioids: buprenorphine, fentanyl, heroin, methadone, morphine, oxycodone; stimulants: amphetamines, cathinones, cocaine; cannabinoids; ethanol). Overall, most direct-acting antivirals (DAAs) are substrates and inhibitors of the transmembrane transporter P-glycoprotein (P-gp), and several of them are metabolized by cytochrome P450 enzymes. Clinically relevant interactions are associated with P-gp and CYP3A modulators. Most substances of abuse are eliminated by Phase I and Phase II metabolizing enzymes, but none of them are either major inhibitors or inducers. PK studies did not show any relevant interactions between DAA and methadone or buprenorphine. Based on pharmacological considerations, neither efficacy loss nor adverse drug event associated with detrimental interaction are expected with opioids, stimulants, cannabinoids and ethanol. In summary, our literature review shows that the interaction potential of DAA with most opioids and illicit drugs is limited and should not be a hurdle to the initiate DAA.
Collapse
Affiliation(s)
- Kuntheavy Ing Lorenzini
- Division of Clinical Pharmacology and Toxicology, University Hospitals of Geneva, Geneva, Switzerland
| | - François Girardin
- Division of Clinical Pharmacology and Toxicology, University Hospitals of Geneva, Geneva, Switzerland
| |
Collapse
|
40
|
Marshall AD, Grebely J, Dore GJ, Treloar C. Barriers and facilitators to engaging in hepatitis C management and DAA therapy among general practitioners and drug and alcohol specialists-The practitioner experience. Drug Alcohol Depend 2020; 206:107705. [PMID: 31718924 DOI: 10.1016/j.drugalcdep.2019.107705] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/24/2019] [Accepted: 10/29/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Since the advent of interferon-free, direct-acting antiviral (DAA) therapies for hepatitis C virus (HCV) infection, prescriber restrictions have been removed worldwide, permitting HCV management outside of hospital-based clinics. To date, there is limited knowledge of the practitioner experience with DAA treatments, particularly among those new to HCV care. The aim of this qualitative study was to investigate barriers and facilitators for HCV management among general practitioners (GPs) who prescribe opioid agonist therapy (OAT) and drug and alcohol specialists. METHODS In-depth, semi-structured telephone interviews were conducted between September 2018 and April 2019. Practitioners from across Australia were purposively sampled and questioned on barriers and facilitators to HCV management in their clinic(s). Data were coded and analysed with iterative categorisation and thematical analysis. RESULTS Thirty practitioners were interviewed. Participants expressed professional fulfillment in managing HCV care and many benefited from specialist mentorship. Most participants expressed frustration with ongoing implementation barriers, notably, a lack of onsite phlebotomy services and liver disease staging equipment. Poor venous access among persons who inject drugs was elucidated as a major barrier to treatment initiation. Some participants did not receive clinic manager support to engage in HCV care. CONCLUSION To achieve HCV targets set by WHO by 2030, practitioners require additional implementation support. As HCV testing remains a barrier to linkage to care, practitioners should be kept well-informed of diagnostic developments. Findings also underscore the importance of initial specialist mentorship with further evidence needed for practitioners based in rural regions.
Collapse
Affiliation(s)
- A D Marshall
- The Kirby Institute, UNSW Sydney, Sydney, NSW 2052, Australia; Centre for Social Research in Health, UNSW Sydney, Sydney, NSW 2052, Australia.
| | - J Grebely
- The Kirby Institute, UNSW Sydney, Sydney, NSW 2052, Australia.
| | - G J Dore
- The Kirby Institute, UNSW Sydney, Sydney, NSW 2052, Australia.
| | - C Treloar
- Centre for Social Research in Health, UNSW Sydney, Sydney, NSW 2052, Australia.
| |
Collapse
|
41
|
Winetsky D, Zucker J, Carnevale C, Theodore D, Scherer M, Sani F, Elkington K, Cohall A, Sobieszczyk ME, Gordon P, Olender S. Attitudes, practices and perceived barriers to hepatitis C screening among medical residents at a large urban academic medical center. J Viral Hepat 2019; 26:1355-1358. [PMID: 31325394 PMCID: PMC6800582 DOI: 10.1111/jvh.13181] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/24/2019] [Accepted: 06/17/2019] [Indexed: 12/18/2022]
Abstract
Infections with hepatitis C virus (HCV) are increasing among adolescents and adults born after 1965. Screening strategies may need to be adapted for this changing population. We surveyed trainees in different specialties about attitudes and practices related to HCV screening and identified specific barriers to screening across various healthcare settings. Constraints related to health system resources and the provider's role were among the most common barriers cited across specialties, but paediatrics residents also cited barriers specific to their population, which can likely be addressed with targeted education.
Collapse
Affiliation(s)
- Daniel Winetsky
- Comprehensive Health Program (CHP), New York Presbyterian Hospital, New York, NY,Division of Infectious Diseases, Department of Internal Medicine, Columbia University Irving Medical Center, New York, NY,HIV Center for Clinical and Behavioral Studies at Columbia University and New York State Psychiatric Institute, New York, NY
| | - Jason Zucker
- Comprehensive Health Program (CHP), New York Presbyterian Hospital, New York, NY,Division of Infectious Diseases, Department of Internal Medicine, Columbia University Irving Medical Center, New York, NY,Division of Infectious Diseases, Department of Pediatrics, Columbia University Irving Medical Center, New York, NY
| | - Caroline Carnevale
- Comprehensive Health Program (CHP), New York Presbyterian Hospital, New York, NY
| | - Deborah Theodore
- Comprehensive Health Program (CHP), New York Presbyterian Hospital, New York, NY,Division of Infectious Diseases, Department of Internal Medicine, Columbia University Irving Medical Center, New York, NY
| | - Matthew Scherer
- Comprehensive Health Program (CHP), New York Presbyterian Hospital, New York, NY,Division of Infectious Diseases, Department of Internal Medicine, Columbia University Irving Medical Center, New York, NY
| | - Fereshteh Sani
- Department of Emergency Medicine, Columbia University Irving Medical Center, New York, NY
| | - Katherine Elkington
- HIV Center for Clinical and Behavioral Studies at Columbia University and New York State Psychiatric Institute, New York, NY,Mailman School of Public Health, Columbia University, New York, NY
| | - Alwyn Cohall
- Division of Infectious Diseases, Department of Pediatrics, Columbia University Irving Medical Center, New York, NY,Mailman School of Public Health, Columbia University, New York, NY
| | - Magdalena E. Sobieszczyk
- Comprehensive Health Program (CHP), New York Presbyterian Hospital, New York, NY,Division of Infectious Diseases, Department of Internal Medicine, Columbia University Irving Medical Center, New York, NY
| | - Peter Gordon
- Comprehensive Health Program (CHP), New York Presbyterian Hospital, New York, NY,Division of Infectious Diseases, Department of Internal Medicine, Columbia University Irving Medical Center, New York, NY
| | - Susan Olender
- Comprehensive Health Program (CHP), New York Presbyterian Hospital, New York, NY,Division of Infectious Diseases, Department of Internal Medicine, Columbia University Irving Medical Center, New York, NY
| |
Collapse
|
42
|
Persico M, Masarone M, Aglitti A, Armenante C, Giordano A, Guardiola A, Raimondi G, Contaldi C, Nigro C, Marena G, De Luna A. HCV point-of-care screening programme and treatment options for people who use drugs in a metropolitan area of Southern Italy. Liver Int 2019; 39:1845-1851. [PMID: 31169953 DOI: 10.1111/liv.14166] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/22/2019] [Accepted: 06/02/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS People who use drugs (PWUD) represent an active reservoir of HCV infection. The prevalence of chronic HCV infection in PWUD in Italy remains unknown because of the lack of systematic screening. Thanks to direct-acting antiviral agents (DAAs), hepatitis C can now be cured in most patients. Thus, the next challenge is to provide linkage-to-care for these patients. METHODS In this scenario, we conducted a screening programme in PWUD attending seven Addiction Centers in Southern Italy, as well as a treatment programme in the Liver Unit of the University Hospital of Salerno. We used the OraQuick HCV antibody test to screen the PWUD (from 1 April to 30 September 2018). RESULTS 593 subjects were consecutively enrolled in the programme; 250 (41.8%) were HCV-Ab-positive. 143 (24.1%) were aware of their infection and had been HCV-RNA-tested: 83 were positive and 60 negative. The remaining 107 subjects (18.1%) had never previously been tested and were unaware of their infection. A total of 160 (26.9%) HCV RNA-positive patients were found and offered antiviral therapy with DAAs. The sustained virological response rate was 98.5% and no adverse events were recorded. Two patients voluntarily discontinued treatment. No reinfections have been recorded to date. CONCLUSIONS The prevalence of HCV-Ab positivity was high in the PWUDs enrolled in this study, and almost half the patients were unaware of being HCV-positive. The linkage-to-care provided was safe and effective, and no case of reinfection was recorded.
Collapse
Affiliation(s)
- Marcello Persico
- Internal Medicine and Hepatology Unit, Department of Medicine and Surgery "Scuola Medica Salernitana", University of Salerno, Baronissi (Salerno), Italy
| | - Mario Masarone
- Internal Medicine and Hepatology Unit, Department of Medicine and Surgery "Scuola Medica Salernitana", University of Salerno, Baronissi (Salerno), Italy
| | - Andrea Aglitti
- Internal Medicine and Hepatology Unit, Department of Medicine and Surgery "Scuola Medica Salernitana", University of Salerno, Baronissi (Salerno), Italy
| | - Ciro Armenante
- Ser.T 40, Dipartimento Dipendenze ASL Salerno, Cava de'Tirreni (Salerno), Italy
| | - Aniello Giordano
- Ser.T 42-Distretto Sanitario 65, Dipartimento Dipendenze ASL Salerno, Battipaglia (Salerno), Italy
| | | | - Gabriella Raimondi
- Ser.T 41-Distretto Sanitario 60, Dipartimento Dipendenze ASL Salerno, Nocera Inferiore (Salerno), Italy
| | - Carlo Contaldi
- Ser.T 48, Dipartimento Dipendenze Asl Salerno, Sapri (Salerno), Italy
| | - Carmine Nigro
- Ser.T 45, Dipartimento Dipendenze ASL Salerno, Agropoli (Salerno), Italy
| | - Giustina Marena
- Ser.T 47, Dipartimento Dipendenze ASL Salerno, Sant'Arsenio (Salerno), Italy
| | | |
Collapse
|
43
|
Lee SS, Crofts N, Hung CC. Macro-efforts for the micro-elimination of hepatitis C targeting people who inject drugs. Int J Infect Dis 2019; 85:141-142. [PMID: 31229938 DOI: 10.1016/j.ijid.2019.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Shui-Shan Lee
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Hong Kong.
| | - Nick Crofts
- School of Population and Global Health, University of Melbourne, Australia
| | - Chien-Ching Hung
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan; Department of Tropical Medicine and Parasitology, National Taiwan University College of Medicine, Taipei, Taiwan
| |
Collapse
|