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Farooq A, Valerio H, Wheeler A, Martinello M, Henderson C, Silk D, Degenhardt L, Read P, Dore GJ, Grebely J, Cunningham EB. Needle and syringe sharing among people who have recently injected drugs in Australia: The ETHOS Engage Study. Drug Alcohol Rev 2024. [PMID: 38630939 DOI: 10.1111/dar.13828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 01/01/2024] [Accepted: 02/10/2024] [Indexed: 04/19/2024]
Abstract
INTRODUCTION Understanding needle/syringe sharing is crucial for reducing hepatitis C virus (HCV) infection and reinfection. This study aimed to assess the prevalence and factors associated with needle/syringe sharing among people who inject drugs in Australia, including those previously receiving HCV treatment. METHODS The ETHOS Engage study was an observational cohort study which collected self-reported survey data on demographic and drug use information from people who inject drugs attending drug treatment clinics and needle and syringe programs over two waves between May 2018 and June 2021. Logistic regression was used to identify factors associated with needle/syringe sharing. RESULTS Overall, 1555/2395 people enrolled in ETHOS Engage (65%) injected drugs in the past month. Among these, 432 (28%) reported needle/syringe sharing in the past month and 276 (18%) reported receptive sharing. Factors associated with receptive sharing included younger age (adjusted odds ratio [aOR] 1.72; 95% confidence interval [CI] 1.28-2.30), recent incarceration (aOR 2.04; 95% CI 1.40-2.94), more frequent injecting (≥daily vs. less than weekly; aOR 2.59; 95% CI 1.75-3.84) and unstable housing (aOR 1.78; 95% CI 1.26-2.52). Among 560 participants with prior HCV treatment, 87 (16%) reported receptive sharing with younger age (aOR 2.42; 95% CI 1.45-4.05) and daily or greater injection frequency (aOR 2.51; 95% CI 1.31-4.83) associated with receptive sharing. DISCUSSION AND CONCLUSIONS Needle/syringe sharing was common among this population accessing harm reduction services. This study identifies high-risk populations with needle/syringe sharing. Research is needed to optimise HCV treatment to ensure people with ongoing risk behaviours receive adequate harm reduction following treatment to prevent reinfection.
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Affiliation(s)
| | | | | | | | | | - David Silk
- The Kirby Institute, UNSW, Sydney, Australia
| | | | - Phillip Read
- The Kirby Institute, UNSW, Sydney, Australia
- Kirketon Road Centre, Sydney, Australia
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Ho N, Vandyk A, Horvath C, Magboo Cahill T, O'Byrne P. The experiences of people who use injection drugs with accessing hepatitis c testing and diagnosis in western countries: A scoping review. Public Health Nurs 2024; 41:37-56. [PMID: 37712447 DOI: 10.1111/phn.13254] [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: 06/10/2023] [Revised: 07/28/2023] [Accepted: 08/29/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND The purpose of this scoping review was to summarize the literature that reported on the experiences of people who use injection drugs' access to hepatitis C testing and diagnosis in Western countries. METHODS The initial search was conducted in 2020 and an updated review was completed in 2022. Seven electronic databases were searched using a peer-reviewed search strategy and included: full-text, peer-reviewed studies with people who inject(ed) drugs, hepatitis C testing or diagnosis, conducted in Western countries. Excluded were studies published prior to 2014 and intervention studies. Two-step screening was conducted in duplicate. Conventional content analysis was used. RESULTS Six studies were found from the search. The studies were published between 2014 and 2021 in Australia, United Kingdom, and United States. A total of 19 participant characteristics were extracted to contextualize their experiences, demonstrating a lack of demographic data. Four themes were found: Awareness and Knowledge, Stigma, Healthcare Service, and Psychological Responses. There were 58 occurrences of client quotes where participants described their experiences, 29 occurrences of quotes describing client-identified barriers, and 14 occurrences of quotes describing client-identified facilitators. CONCLUSION A scoping review was conducted to present the experiences, barriers, and facilitators of people who use injection drugs to hepatitis C testing. The lack of demographic data and connection to client quotes further exacerbates the inequities among the population by overlooking their intragroup identities. Understanding their experiences of accessing hepatitis C testing and collecting demographic data will help advance health policies and interventions targeting people who use injection drugs.
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Affiliation(s)
- Nikki Ho
- Faculty of Health Sciences, School of Nursing, University of Ottawa, Ottawa, Ontario, Canada
| | - Amanda Vandyk
- Faculty of Health Sciences, School of Nursing, University of Ottawa, Ottawa, Ontario, Canada
| | - Cynthia Horvath
- Ottawa Public Health, Health Protection Service, Ottawa, Ontario, Canada
| | - Taliesin Magboo Cahill
- Faculty of Health Sciences, School of Nursing, University of Ottawa, Ottawa, Ontario, Canada
| | - Patrick O'Byrne
- Faculty of Health Sciences, School of Nursing, University of Ottawa, Ottawa, Ontario, Canada
- Ottawa Public Health, Health Protection Service, Ottawa, Ontario, Canada
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Young J, Wang S, Lanièce Delaunay C, Cooper CL, Cox J, Gill MJ, Hull M, Walmsley S, Wong A, Klein MB. The rate of hepatitis C reinfection in Canadians coinfected with HIV and its implications for national elimination. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2023; 114:103981. [PMID: 36893502 DOI: 10.1016/j.drugpo.2023.103981] [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: 10/05/2022] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 03/09/2023]
Abstract
BACKGROUND The World Health Organisation (WHO) has set targets for the rate of new infections as a way to measure progress towards the elimination of hepatitis C virus (HCV) as a public health threat. As more people are successfully treated for HCV, a higher proportion of new infections will be reinfections. We consider whether the reinfection rate has changed since the interferon era and what we can infer about national elimination efforts from the current reinfection rate. METHODS The Canadian Coinfection Cohort is representative of HIV HCV coinfected people in clinical care. We selected cohort participants successfully treated for a primary HCV infection either in the interferon era or in the era of direct acting antivirals (DAAs). Selected participants were followed from 12 weeks after completing a successful treatment until the end of 2019 or until their last measured HCV RNA. We estimated the reinfection rate in each treatment era, overall and in participant subgroups, using proportional hazard models appropriate for interval censored data. RESULTS Among 814 successfully treated participants with additional HCV RNA measurements, there were 62 reinfections. The overall reinfection rate was 2.6 (95% confidence interval, CI, 1.2-4.1) /100 person years (PY) in the interferon era and 3.4 (95% CI 2.5-4.4) /100 PY in the DAA era. The rate in those reporting injection drug use (IDU) was much higher: 4.7 (95% CI 1.4-7.9) /100 PY and 7.6 (95% CI 5.3-10) /100 PY in the interferon and DAA eras respectively. CONCLUSION The overall reinfection rate in our cohort is now above the WHO target set for new infections in people who inject drugs. The reinfection rate in those reporting IDU has increased since the interferon era. This suggests Canada is not on track to achieve HCV elimination by 2030.
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Affiliation(s)
- Jim Young
- Research Institute of the McGill University Health Centre, 5252 Boulevard de Maisonneuve Ouest, Montreal, Quebec H4A3S5, Canada; Department of Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine, McGill University, 2001 McGill College Suite 1200, Montreal, Quebec H3A1G1, Canada.
| | - Shouao Wang
- Research Institute of the McGill University Health Centre, 5252 Boulevard de Maisonneuve Ouest, Montreal, Quebec H4A3S5, Canada
| | - Charlotte Lanièce Delaunay
- Research Institute of the McGill University Health Centre, 5252 Boulevard de Maisonneuve Ouest, Montreal, Quebec H4A3S5, Canada; Department of Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine, McGill University, 2001 McGill College Suite 1200, Montreal, Quebec H3A1G1, Canada
| | - Curtis L Cooper
- Division of Infectious Diseases, Department of Medicine, Ottawa Hospital Research Institute, 725 Parkdale Avenue, Ottawa K1Y4E9, Canada
| | - Joseph Cox
- Department of Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine, McGill University, 2001 McGill College Suite 1200, Montreal, Quebec H3A1G1, Canada; Division of Infectious Diseases and Chronic Viral Illness Service, Department of Medicine, McGill University Health Centre, 1001 Boulevard Décarie, Montreal, Quebec H4A3J1, Canada
| | - M John Gill
- Department of Medicine, University of Calgary, 2500 University Drive, Calgary, Alberta T2N1N4, Canada
| | - Mark Hull
- BC Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, British Colombia V6Z1Y6, Canada
| | - Sharon Walmsley
- Division of Infectious Diseases, Department of Medicine, Faculty of Medicine, University of Toronto, 6 Queen's Park Crescent West, Toronto. Ontario M5S3H2, Canada
| | - Alexander Wong
- Division of Infectious Diseases, Department of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, Saskatchewan S7N5E5, Canada
| | - Marina B Klein
- Research Institute of the McGill University Health Centre, 5252 Boulevard de Maisonneuve Ouest, Montreal, Quebec H4A3S5, Canada; Department of Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine, McGill University, 2001 McGill College Suite 1200, Montreal, Quebec H3A1G1, Canada; Division of Infectious Diseases and Chronic Viral Illness Service, Department of Medicine, McGill University Health Centre, 1001 Boulevard Décarie, Montreal, Quebec H4A3J1, Canada; CIHR Canadian HIV Trials Network, 608-1081 Burrard Street, Vancouver, British Columbia V6Z1Y6, Canada
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Carson JM, Barbieri S, Matthews GV, Dore GJ, Hajarizadeh B. National trends in retreatment of HCV due to reinfection or treatment failure in Australia. J Hepatol 2023; 78:260-270. [PMID: 36152766 DOI: 10.1016/j.jhep.2022.09.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/19/2022] [Accepted: 09/05/2022] [Indexed: 01/24/2023]
Abstract
BACKGROUND & AIMS Population-level uptake of direct-acting antiviral (DAA) treatment for hepatitis C virus (HCV) infection, including retreatment, can be estimated through administrative pharmaceutical dispensation data. However, the reasons for retreatment are not captured in these data. We developed a machine learning model to classify retreatments as reinfection or treatment failure at a national level. METHODS Retreatment data from the REACH-C cohort (n = 10,843 treated with DAAs; n = 320 retreatments with known reason), were used to train a random forest model. Nested cross validation was undertaken to assess model performance and to optimise hyperparameters. The model was applied to data on DAA retreatment dispensed during 2016-2021 in Australia, to identify the reason for retreatment (treatment failure or reinfection). RESULTS Average predictive accuracy, precision, sensitivity, specificity and F1-score for the model were 96.3%, 96.5%, 96.3%, 96.3% and 96.3%, respectively. Nationally, 95,272 individuals initiated DAAs, with treatment uptake declining from 32,454 in 2016 to 6,566 in 2021. Of those treated, 6,980 (7%) were retreated. Our model classified 51.8% (95% CI 46.7-53.6%; n = 3,614) of cases as reinfection and 48.2% (95% CI 46.4-53.3%; n = 3,366) as treatment failure. Retreatment for reinfection increased steadily over the study period from 14 in 2016 to 1,092 in 2020, stabilising in 2021. Retreatment for treatment failure increased from 73 in 2016 to 1,077 in 2019, then declined to 515 in 2021. Among individuals retreated for treatment failure, 50% had discontinued initial treatment. CONCLUSIONS We used a novel methodology with high classification accuracy to evaluate DAA retreatment patterns at a national level. Increases in retreatment uptake for treatment failure corresponded to the availability of pangenotypic and salvage regimens. Increasing retreatment uptake for reinfection likely reflects increasing reinfection incidence. IMPACT AND IMPLICATIONS This study used machine learning methodologies to analyse national administrative data and characterise trends in HCV retreatment due to reinfection and treatment failure. Retreatment for reinfection increased over time, reflecting increasing numbers of people at risk for reinfection following HCV cure. Increased retreatment for treatment failure corresponded to the availability of pangenotypic and salvage DAA regimens. The findings of this study can be used by public health agencies and policy makers to guide and assess HCV elimination strategies, while the novel methodology for monitoring trends in HCV retreatment has the potential to be used in other settings, and health conditions.
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Alberts R, Zimmermann A, Martinez A. Improving hepatitis C screening and access to treatment. JAAPA 2022; 35:17-21. [PMID: 36165543 DOI: 10.1097/01.jaa.0000873784.48761.b2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT The rising prevalence of opioid use disorder and injection drug use has resulted in an increasing incidence of chronic hepatitis C virus (HCV) infection. Although older adults historically have represented the bulk of HCV infections in the United States, demographics have shifted and most new infections are presenting in younger patients. As a result, screening guidelines for HCV have evolved, moving toward a near-universal screening paradigm. Rates of screening and linkage to care remain low, attributed to the fact that underserved populations are disproportionately affected and often have limited access to specialty care. Collaborative models to treat HCV using primary care providers have been proposed to facilitate linkage to care and reduce transmission.
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Affiliation(s)
- Ryan Alberts
- Ryan Alberts practices at Universal Primary Care in Olean, N.Y. AnnMarie Zimmermann is medical director of the Southern Tier Community Health Center Network in Olean, N.Y. Anthony Martinez is an associate professor of medicine in the Jacobs School of Medicine at the University at Buffalo (N.Y.) and medical director of hepatology at Erie County Medical Center in Buffalo, N.Y. The authors have disclosed no potential conflicts of interest, financial or otherwise
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Grebely J, Dore GJ, Altice FL, Conway B, Litwin AH, Norton BL, Dalgard O, Gane EJ, Shibolet O, Nahass R, Luetkemeyer AF, Peng CY, Iser D, Gendrano IN, Kelly MM, Hwang P, Asante-Appiah E, Haber BA, Barr E, Robertson MN, Platt H. Reinfection and Risk Behaviors After Treatment of Hepatitis C Virus Infection in Persons Receiving Opioid Agonist Therapy : A Cohort Study. Ann Intern Med 2022; 175:1221-1229. [PMID: 35939812 DOI: 10.7326/m21-4119] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Hepatitis C virus (HCV) reinfection after successful treatment may reduce the benefits of cure among people who inject drugs. OBJECTIVE To evaluate the rate of HCV reinfection for 3 years after successful treatment among people receiving opioid agonist therapy (OAT). DESIGN A 3-year, long-term, extension study of persons enrolled in the CO-STAR (Hepatitis C Patients on Opioid Substitution Therapy Antiviral Response) study (ClinicalTrials.gov: NCT02105688). SETTING 55 clinical trial sites in 13 countries. PATIENTS Aged 18 years and older with chronic HCV infection with genotypes 1, 4, or 6 receiving stable OAT. INTERVENTION No treatments were administered. MEASUREMENTS Serum samples were assessed for HCV reinfection. Urine drug screening was performed. RESULTS Among 296 participants who received treatment, 286 were evaluable for reinfection and 199 were enrolled in the long-term extension study. The rate of HCV reinfection was 1.7 [95% CI, 0.8 to 3.0] per 100 person-years; 604 person-years of follow-up). A higher rate of reinfection was seen among people with recent injecting drug use (1.9 [95% CI, 0.5 to 4.8] per 100 person-years; 212 person-years). Ongoing drug use and injecting drug use were reported by 59% and 21% of participants, respectively, at the 6-month follow-up visit and remained stable during 3 years of follow-up. LIMITATIONS Participants were required to be 80% adherent to OAT at baseline and may represent a population with higher stability and lower risk for HCV reinfection. Rate of reinfection may be underestimated because all participants did not continue in the long-term extension study; whether participants who discontinued were at higher risk for reinfection is unknown. CONCLUSION Reinfection with HCV was low but was highest in the first 24 weeks after treatment completion and among people with ongoing injecting drug use and needle-syringe sharing. PRIMARY FUNDING SOURCE Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc.
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Affiliation(s)
- Jason Grebely
- The Kirby Institute, UNSW Sydney, Sydney, New South Wales, Australia (J.G., G.J.D.)
| | - Gregory J Dore
- The Kirby Institute, UNSW Sydney, Sydney, New South Wales, Australia (J.G., G.J.D.)
| | | | - Brian Conway
- Vancouver Infectious Diseases Centre, Vancouver, British Columbia, Canada (B.C.)
| | - Alain H Litwin
- Prisma Health/University of South Carolina School of Medicine Greenville, and Clemson University, Greenville, South Carolina (A.H.L., B.L.N.)
| | - Brianna L Norton
- Prisma Health/University of South Carolina School of Medicine Greenville, and Clemson University, Greenville, South Carolina (A.H.L., B.L.N.)
| | - Olav Dalgard
- Institute of Clinical Medicine, Akershus University, Oslo, Norway (O.D.)
| | - Edward J Gane
- Auckland City Hospital, Auckland, New Zealand (E.J.G.)
| | - Oren Shibolet
- Liver Unit, Department of Gastroenterology, Tel Aviv Medical Center and Tel Aviv University, Tel Aviv, Israel (O.S.)
| | | | - Anne F Luetkemeyer
- University of California San Francisco, San Francisco, California (A.F.L.)
| | - Cheng-Yuan Peng
- China Medical University Hospital, Taichung, Taiwan (C.Y.P.)
| | - David Iser
- The Alfred Hospital, Melbourne, Victoria, Australia (D.I.)
| | - Isaias Noel Gendrano
- Merck & Co., Inc., Rahway, New Jersey (I.N.G., M.M.K., P.H., E.A.A., B.A.H., E.B., M.N.R., H.P.)
| | - Michelle M Kelly
- Merck & Co., Inc., Rahway, New Jersey (I.N.G., M.M.K., P.H., E.A.A., B.A.H., E.B., M.N.R., H.P.)
| | - Peggy Hwang
- Merck & Co., Inc., Rahway, New Jersey (I.N.G., M.M.K., P.H., E.A.A., B.A.H., E.B., M.N.R., H.P.)
| | - Ernest Asante-Appiah
- Merck & Co., Inc., Rahway, New Jersey (I.N.G., M.M.K., P.H., E.A.A., B.A.H., E.B., M.N.R., H.P.)
| | - Barbara A Haber
- Merck & Co., Inc., Rahway, New Jersey (I.N.G., M.M.K., P.H., E.A.A., B.A.H., E.B., M.N.R., H.P.)
| | - Eliav Barr
- Merck & Co., Inc., Rahway, New Jersey (I.N.G., M.M.K., P.H., E.A.A., B.A.H., E.B., M.N.R., H.P.)
| | - Michael N Robertson
- Merck & Co., Inc., Rahway, New Jersey (I.N.G., M.M.K., P.H., E.A.A., B.A.H., E.B., M.N.R., H.P.)
| | - Heather Platt
- Merck & Co., Inc., Rahway, New Jersey (I.N.G., M.M.K., P.H., E.A.A., B.A.H., E.B., M.N.R., H.P.)
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Wan Z, Sun P, Dzakah EE, Huang L, Shuai P, Liu Y. Reinfection rate of hepatitis C in HIV-1 positive men who have sex with men: A systematic review and meta-analysis. Front Public Health 2022; 10:855989. [PMID: 35968434 PMCID: PMC9372531 DOI: 10.3389/fpubh.2022.855989] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 07/07/2022] [Indexed: 12/02/2022] Open
Abstract
Purpose A reduction of 80% in new Hepatitis C virus (HCV) infection is expected by 2030. However, high HCV reinfection rates have been reported among the high-risk population. This meta-analysis aimed to assess the HCV reinfection rate after successful treatment of HIV-1 coinfected MSM populations. Methods Bibliographic databases were searched and a random-effect model was utilized to calculate the pooled HCV reinfection rate. Sub-group and meta-regression were used to explore heterogeneity among selected studies. A funnel plot and Egger's regression test were performed to estimate the publication bias. Results Sixteen studies with 9,017.2 person-years (PY) follow-up were included. The overall HCV reinfection rate following successful treatment among HIV-1-infected MSM was 5.27/100 PY (95% CI, 3.98, 6.96). Lower reinfection rates were observed in developed parts of Europe (5.28/100 PY; 95% CI, 3.73, 6.84) and North America (3.92/100 PY; 95% CI, 1.67, 6.17). Reinfection rates among people with HCV test intervals of fewer than 6 months (7.59/100 PY; 95% CI: 5.15, 10.03) were significantly higher than those with more than 6 months test interval (2.88/100 PY; 95% CI: 2.26, 3.50), with an adjusted RR of 1.86 (95% CI, 1.06, 3.13). The adjusted study factors explained 91.03% the of studies' heterogeneity. Conclusion HCV reinfection rate was high in successfully treated MSM who were coinfected with HIV-1. A shorter HCV test interval may help to explore more HCV reinfections. HCV reinfection rate studies from HIV-1 coinfected MSM in underdeveloped countries are urgently needed. Meta registration PROSPERO: CRD42021285206, URL: https://www.crd.york.ac.uk/prospero/.
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Affiliation(s)
- Zhengwei Wan
- Department of Health Management Center and Institute of Health Management, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Ping Sun
- Department of Health Management Center and Institute of Health Management, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Emmanuel Enoch Dzakah
- Department of Molecular Biology and Biotechnology, School of Biological Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Liping Huang
- Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Ping Shuai
- Department of Health Management Center and Institute of Health Management, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- *Correspondence: Ping Shuai
| | - Yuping Liu
- Department of Health Management Center and Institute of Health Management, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Yuping Liu
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Viera A, Grau LE, Fisher JD, Farnum SO, Tetrault JM, Scott G, Heimer R. Development and pilot-testing of a hepatitis C reinfection prevention intervention for patients in treatment for hepatitis C infection. DRUG AND ALCOHOL DEPENDENCE REPORTS 2022; 3:100038. [PMID: 36845980 PMCID: PMC9948939 DOI: 10.1016/j.dadr.2022.100038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 02/04/2022] [Accepted: 03/07/2022] [Indexed: 11/29/2022]
Abstract
•We developed a two-session behavioral intervention to prevent HCV reinfection.•The intervention was piloted at an OTP and integrated into HCV treatment.•Baseline data showed limited knowledge & application of safer injection practices.•Implementation barriers included logistics and the lack of financial incentive.•Adaptations addressed barriers, yielding a more feasible and acceptable intervention.
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Affiliation(s)
- Adam Viera
- Department of Social and Behavioral Sciences, Yale University School of Public Health, New Haven, CT, USA
- Center for Interdisciplinary Research on AIDS, Yale University, New Haven, CT, USA
- Corresponding author.
| | - Lauretta E. Grau
- Department of Epidemiology of Microbial Diseases, Yale University School of Public Health, New Haven, CT, USA
| | - Jeffrey D. Fisher
- Department of Psychological Sciences and the Institute for Collaboration on Health, Intervention, and Policy (InCHIP), University of Connecticut, Storrs, CT USA
| | | | - Jeanette M. Tetrault
- Department of Internal Medicine and the Yale Addiction Medicine Program, Yale University School of Public Health, New Haven, CT, USA
| | - Greg Scott
- Department of Sociology, DePaul University, Chicago, IL USA
| | - Robert Heimer
- Department of Epidemiology of Microbial Diseases, Yale University School of Public Health, New Haven, CT, USA
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Lazarus JV, Picchio CA, Byrne CJ, Crespo J, Colombo M, Cooke GS, Dore GJ, Grebely J, Ward JW, Dillon JF. A Global Systematic Review of Hepatitis C Elimination Efforts through Micro-Elimination. Semin Liver Dis 2022; 42:159-172. [PMID: 35189667 DOI: 10.1055/a-1777-6112] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Microelimination targets specific subpopulations and/or geographic settings for hepatitis C virus (HCV) elimination. This review reports on global HCV microelimination literature published from 2013 to 2020. Data were extracted from publications to report a score based on the four key components defining microelimination. Sustained virologic response (SVR) and treatment initiation proportions were calculated for each manuscript and grouped means of these estimates were compared depending on microelimination score and care setting. A total of 83% of the studies were from high-income settings and mainly included people who use drugs or those incarcerated. Among manuscripts, 18 had "low" microelimination scores, 11 had "high" scores, and the differences in mean proportion who initiated treatment and achieved SVR between low and high score groups were statistically significant. Microelimination can be a useful complementary strategy for driving engagement in HCV treatment and cure. Our analysis suggests that adhering to more of the core microelimination components can improve outcomes. This study is registered with Prospero, registration identification: CRD42020175211.
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Affiliation(s)
- Jeffrey V Lazarus
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic de Barcelona, Spain
- Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Camila A Picchio
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic de Barcelona, Spain
| | - Christopher J Byrne
- Division of Molecular and Clinical Medicine, University of Dundee School of Medicine, Ninewells Hospital, Dundee, United Kingdom
| | - Javier Crespo
- Department of Gastroenterology and Hepatology, University Hospital Marques de Valdecilla. Research Institute Valdecilla-IDIVAL, Santander, Spain
| | - Massimo Colombo
- General Medicine & Liver Center, San Raffaele Hospital, Milan, Italy
| | - Graham S Cooke
- Division of Infectious Diseases, Faculty of Medicine, Imperial College London, United Kingdom
| | | | | | - John W Ward
- Coalition for Global Hepatitis Elimination, The Task Force for Global Health, Atlanta, United States
| | - John F Dillon
- Division of Molecular and Clinical Medicine, University of Dundee School of Medicine, Ninewells Hospital, Dundee, United Kingdom
- Department of Gastroenterology, Ninewells Hospital & Medical School, Dundee, United Kingdom
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Primary Care Associated With Follow Up Viral Load Testing in Patients Cured of Hepatitis C Infection With Direct Acting Antivirals at a Multidisciplinary Addiction Treatment Program: Insights From a Real-World Setting. J Addict Med 2022; 16:333-339. [PMID: 34483278 PMCID: PMC9033626 DOI: 10.1097/adm.0000000000000910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVES Treatment of hepatitis C virus infection (HCV) with direct acting antiviral therapy is encouraged regardless of substance use status. Patients with substance use disorder are at risk of HCV reinfection after cure. Follow up viral load testing (FUVL) with HCV RNA is recommended. We investigated factors associated with adoption of FUVL in real-world clinical settings. METHODS Medical records of all patients with SUD who achieved HCV cure with direct acting antivirals at a multidisciplinary addiction treatment program between 2014 and 2019 were reviewed as part of a quality improvement initiative. Demographic and clinical characteristics including SUD treatment, urine toxicology results, and medical service use were collected. Factors associated with FUVL were analyzed and the rate of HCV reinfection was determined. RESULTS Among 149 patients, 58.4% received FUVL. Receipt of FUVL was associated with engagement in ongoing primary medical care after cure (AOR 4.39, 95% CI [1.67, 11.49]). The HCV reinfection rate among those who received FUVL was 1.95 per 100 person-years of follow up (95% CI [0.64, 5.98]). There was no significant difference in the percentage of negative urine toxicology results before and after cure. CONCLUSIONS Over half of a cohort of patients with substance use disorder cured of HCV received FUVL. The relationship between FUVL and engagement in primary medical and substance use treatment highlights the importance of integrated systems in providing longitudinal care for patients cured of HCV. Standardized interventions that facilitate FUVL testing and management of infectious complications of SUD in addiction treatment settings are needed.
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Ingiliz P, Wehmeyer MH, Boesecke C, Schulze Zur Wiesch J, Schewe K, Lutz T, Baumgarten A, Simon KG, Hueppe D, Rockstroh JK, Mauss S, Christensen S. Reinfection With the Hepatitis C Virus in Men Who Have Sex With Men After Successful Treatment With Direct-acting Antivirals in Germany: Current Incidence Rates, Compared With Rates During the Interferon Era. Clin Infect Dis 2021; 71:1248-1254. [PMID: 31562816 DOI: 10.1093/cid/ciz949] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 09/23/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Micro-elimination of the hepatitis C virus (HCV) includes treatment in populations at risk of ongoing HCV transmission, such as men who have sex with men (MSM) or people who inject drugs (PWID). We analyzed the HCV reinfection incidence rates of participants in the German hepatitis C cohort (GECCO) and compared our data to previous findings from the interferon era. METHODS Patients with HCV reinfections in the multi-centric GECCO cohort were compared to patients in whom no reinfection occurred. The HCV reinfection incidence rate in MSM was also compared to the incidence rate in the interferon era (using data from the European Acquired Immunodeficiency Syndrome Treatment Network [NEAT]). RESULTS Between January 2014 and April 2018, 48 HCV reinfections occurred in 2298 individuals (2%), with 2346 cured HCV episodes. The median time to reinfection was 500 days (range 16-1160) and the overall HCV reinfection incidence rate was 1.89 per 100 person-years (py; 95% confidence interval [CI], 1.41-2.48). In a multivariate analysis, the transmission risk in MSM was the only independent risk factor of HCV reinfection (odds ratio, 39.3; 95% CI, 4.57-334.40; P = .001). The incidence rate in MSM was 9.02 (95% CI, 6.48-12.26) per 100 py, compared to 1.14 per 100 py in PWID (95% CI, .56-2.09). The incidence rate for a first HCV reinfection in MSM was similar in the direct-acting antiviral era, compared to the interferon era, with a hazard ratio of 1.05 (95% CI, .64-1.74; P = .831). CONCLUSIONS HCV reinfection remains a frequent finding among MSM in Germany. In addition to behavioral interventions, early HCV treatment and retreatment should be implemented for this subgroup to prevent HCV transmission.
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Affiliation(s)
- Patrick Ingiliz
- Center for Infectiology, Berlin, Germany.,Department of Gastroenterology and Hepatology, Charité University Medical Center, Berlin, Germany
| | - Malte H Wehmeyer
- Medical Department, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christoph Boesecke
- Department of Medicine I, University Hospital Bonn, Bonn, Germany.,German Centre for Infection Research, Partner Site Cologne-Bonn, Bonn, Germany.,Infectious Diseases, European Acquired Immunodeficiency Syndrome Treatment Network, Brussels, Belgium
| | - Julian Schulze Zur Wiesch
- Medical Department, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,German Centre for Infection Research, Partner Site Cologne-Bonn, Bonn, Germany
| | - Knud Schewe
- Infectiology Center Hamburg Study Center, Hamburg, Germany
| | | | | | | | | | - Juergen K Rockstroh
- Department of Medicine I, University Hospital Bonn, Bonn, Germany.,German Centre for Infection Research, Partner Site Cologne-Bonn, Bonn, Germany.,Infectious Diseases, European Acquired Immunodeficiency Syndrome Treatment Network, Brussels, Belgium
| | - Stefan Mauss
- Center for Human Immunodeficiency Virus and Hepatogastroenterology, Duesseldorf, Germany
| | - Stefan Christensen
- Infectious Diseases, Center for Interdisciplinary Medicine, Muenster, Germany.,Department of Gastroenterology and Hepatology, Muenster University Hospital, Muenster, Germany
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Brooks KM, Castillo-Mancilla JR, Morrow M, MaWhinney S, Rowan SE, Wyles D, Blum J, Huntley R, Salah LM, Tehrani A, Bushman LR, Anderson PL, Kiser JJ. Adherence to Direct-Acting Antiviral Therapy in People Actively Using Drugs and Alcohol: The INCLUD Study. Open Forum Infect Dis 2021; 8:ofaa564. [PMID: 33447634 PMCID: PMC7793461 DOI: 10.1093/ofid/ofaa564] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/16/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Hepatitis C virus treatment in persons who use drugs (PWUD) is often withheld due to adherence and reinfection concerns. In this study, we report treatment outcomes, technology-based adherence data, and adherence predictors in PWUD and/or alcohol. METHODS INCLUD was a prospective, open-label study of ledipasvir/sofosbuvir for 12 weeks in PWUD aged 18-70 years. Participants were randomized to wireless (wirelessly observed therapy) or video-based directly observed therapy (vDOT). Drug use was assessed every 2 weeks. Sustained virologic response (SVR) was examined by intention-to-treat and as-treated. Factors associated with missing ≥1 dose(s) between visits were examined using generalized linear models. RESULTS Sixty participants received ≥1 ledipasvir/sofosbuvir dose (47 human immunodeficiency virus [HIV]/hepatitis C virus [HCV], 13 HCV only; 78% male; 22% black; 25% cirrhotic). Substance use occurred at 94% of person-visits: 60% marijuana, 56% alcohol, 37% methamphetamine, 22% opioids, 17% cocaine, and 20% injection drug use. The SVR by intention-to-treat was 86.7% (52 of 60) and as-treated was 94.5% (52 of 55). Confirmed failures included 1 relapse, 1 reinfection, and 1 unknown (suspected reinfection). Median total adherence was 96% (interquartile range [IQR], 85%-100%; range, 30%-101%), and between-visit adherence was 100% (IQR, 86%-100%; range, 0%-107%). The odds of missing ≥1 dose between visits increased with HIV coinfection (2.94; 95% confidence interval [CI], 1.37-6.32; P = .006), black race (4.09; 95% CI, 1.42-11.74; P = .009), methamphetamine use (2.51; 95% CI, 1.44-4.37; P = .0.001), and cocaine use (2.12; 95% CI, 1.08-4.18; P = .03) and decreased with marijuana use (0.34; 95% CI, 0.17-0.70; P = .003) and vDOT (0.43; 95% CI, 0.21-0.87; P = .02). CONCLUSIONS Persons who use drugs achieved high SVR rates with high, but variable, ledipasvir/sofosbuvir adherence using technology-based methods. These findings support efforts to expand HCV treatment in PWUD.
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Affiliation(s)
- Kristina M Brooks
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jose R Castillo-Mancilla
- Division of Infectious Diseases, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Mary Morrow
- Department of Biostatistics and Bioinformatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Samantha MaWhinney
- Department of Biostatistics and Bioinformatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Sarah E Rowan
- Division of Infectious Diseases, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
- Denver Health and Hospital Authority, Denver, Colorado, USA
| | - David Wyles
- Division of Infectious Diseases, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
- Denver Health and Hospital Authority, Denver, Colorado, USA
| | - Joshua Blum
- Denver Health and Hospital Authority, Denver, Colorado, USA
| | - Ryan Huntley
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lana M Salah
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Arya Tehrani
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lane R Bushman
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jennifer J Kiser
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
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Byrne C, Robinson E, Rae N, Dillon JF. Toward microelimination of hepatitis C and HIV coinfection in NHS Tayside, Scotland: Real-world outcomes. Health Sci Rep 2020; 3:e191. [PMID: 33033752 PMCID: PMC7534516 DOI: 10.1002/hsr2.191] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/30/2020] [Accepted: 08/18/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND AND AIMS NHS Tayside is a health board in Scotland which serves around 400 000 residents. Approximately, 2761 are estimated to be persons who inject drugs (PWID), and therefore at risk of infections such as hepatitis C (HCV) and HIV. There are few studies exploring mechanisms and success of eliminating HCV in HIV co-infected PWID using real-world data. This study aims to empirically assess HCV treatment outcomes in people living with HIV (PLHIV) to evaluate progress toward microelimination of HCV in the HIV-positive population in Tayside. METHODS HCV testing and treatment details for PLHIV stored on clinical databases dating from 2001 were extracted and anonymized. HCV treatment uptake among co-infected patients eligible for HCV treatment was calculated. Reinfection incidence was calculated in person years. Confidence intervals were calculated assuming Poisson distribution. Caldicott Guardian approval was obtained to access patient data (ref: IGTCAL 5677). RESULTS Ninety-six percent of PLHIV were tested for HCV across nine services and aware of their HCV status. From 2001 to 2019, 58 PLHIV were HCV co-infected. Four left the area and five died prior to HCV treatment. Forty-nine were eligible for HCV treatment. Thirty were treated with PEGylated interferon (Peg-IFN); 18 with direct acting antivirals (DAA). One is yet to be treated. Twelve treated with Peg-IFN did not achieve sustained viral response (SVR12); 10 were retreated, two died prior to re-treatment. Injecting drug use was the mode of HCV transmission for 39 of 49 patients. Proportion who achieved SVR12 is 75%; 92% if treated with DAAs. Annual proportions of PLHIV treated for HCV increased from 3.57% in the Peg-IFN era to 66.67% in the DAA era. Reinfection incidence is 0.2 per 100 person years (CI -0.3 to 0.7). CONCLUSIONS NHS Tayside has made progress toward microelimination of HCV among PLHIV. The most common mode of HCV transmission in PLHIV in NHS Tayside is injecting drug use. DAAs increased the proportion of co-infected PLHIV treated for HCV and produced superior SVR12 results compared to Peg-IFN.
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Affiliation(s)
- Christopher Byrne
- Molecular and Clinical MedicineUniversity of Dundee School of MedicineDundeeUK
| | - Emma Robinson
- Molecular and Clinical MedicineUniversity of Dundee School of MedicineDundeeUK
- Department of GastroenterologyNinewells Hospital & Medical SchoolDundeeUK
| | - Nikolas Rae
- Infection and Immunodeficiency UnitNinewells Hospital & Medical SchoolDundeeUK
| | - John F. Dillon
- Molecular and Clinical MedicineUniversity of Dundee School of MedicineDundeeUK
- Department of GastroenterologyNinewells Hospital & Medical SchoolDundeeUK
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14
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Hepatitis C Reinfection in People Who Inject Drugs in Resource-Limited Countries: A Systematic Review and Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17144951. [PMID: 32659974 PMCID: PMC7400365 DOI: 10.3390/ijerph17144951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/01/2020] [Accepted: 07/07/2020] [Indexed: 12/12/2022]
Abstract
Hepatitis C (HCV) is a global pandemic. The World Health Organization has developed a strategic plan for HCV elimination that focuses on low- and middle-income countries (LMICs) and high-risk populations, including people who inject drugs (PWID). While direct-acting antiviral (DAA) therapies are highly effective at eliminating HCV infections and have few side effects, medical professionals and policymakers remain concerned about the risk of reinfection among PWID. This study is a systematic review of research measuring the rate of HCV reinfection among PWID in LMICs and identifies additional areas for further research. A systematic search strategy was used to identify studies documenting HCV reinfection after sustained virologic response in PWID in LMICs. We refined results to include studies where at least 50% of participants had DAA treatment for primary HCV infection. Pooled reinfection rate was calculated across all studies. Seven studies met eligibility criteria. Most studies were conducted in six upper middle-income countries (Mexico, Romania, Russia, Taiwan, Georgi, and Brazil) and one lower middle-income country (Bangladesh) with a total of 7665 participants. No study included information from PWID in low-income countries. Sample sizes ranged from 200 to 3004 individuals, with demographic data missing for most participants. Four studies used deep gene sequencing, and reflex genotyping procedures to differentiate reinfection (infection by a different HCV genotype/subtype) from virologic relapse (infection by the same strain). The follow-up time of people cured from primary chronic HCV infection ranged from 12 weeks to 6.6 years. The pooled reinfection rate of all seven studies was 2.8 (range: 0.02 to 10.5) cases per 100 person-years (PY). In the five studies that differentiated relapse from reinfection, the incidence of reinfection was 1.0 per 100 PY. To date, research on reinfection rates among PWID in LMICs remains limited. Research focused on PWID in low-income countries is particularly needed to inform clinical decision making and evidence-based programs. While rates of reinfection among PWID who complete DAA treatment in upper and lower middle-income countries were similar or lower than rates observed in PWID in high-income countries, the rates were highly variable and factors may influence the accuracy of these measurements. This systematic review identifies several areas for continued research. Policies concerning access to HCV testing and treatment should be comprehensive and not place restrictions on PWID in these settings.
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Mandel E, E Kendall C, Mason K, Guyton M, Lettner B, Broad J, Altenberg J, Donelle J, Powis J. Impact of comprehensive care on health care use among a cohort of marginalized people living with hepatitis C in Toronto. CANADIAN LIVER JOURNAL 2020. [DOI: 10.3138/canlivj-2019-0021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background: The majority of new hepatitis C (HCV) cases occur among people who inject drugs. In recent years, multidisciplinary models of HCV treatment have emerged that demonstrate successful treatment outcomes for this population, as well as broad positive individual- and system-level impacts. Our objective was to evaluate changes in health care use among a cohort of people living with HCV before and after engagement with one such program. Methods: Program data were uniquely linked to provincial health administrative databases. Rates of emergency department (ED) visits and hospital admissions of clients from 2011 through 2015 ( N = 103) were evaluated using linkages with administrative data for the 2 years before and after program initiation. Data were evaluated using negative binomial regression models with a covariance structure to account for within-individual correlations. Results: Of participants, 72.8% were men (mean age 47 years), and 38% experienced high rates of physical and mental health comorbidity (Aggregated Diagnosis Group score ≥10). Female clients had significantly fewer ED visits 2 years after program initiation (5.04 versus 3.12; risk ratio [RR] 0.61 [95% CI 0.44% to 0.86%]). ED visits for infectious diseases and soft tissue injury were significantly lower for the cohort overall (RRs 0.58 0.51 [95% CIs 0.35% to 0.95% and 0.29% to 0.90%], respectively). Conclusion: Co-locating HCV treatment within comprehensive primary care and harm reduction services appears to have benefits beyond HCV, including a reduction in ED visits among women and a decrease in ED visits for soft tissue infections for all participants.
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Affiliation(s)
- Erin Mandel
- Toronto Centre for Liver Disease, University Health Network, Toronto, Ontario
| | - Claire E Kendall
- Department of Family Medicine, University of Ottawa, Ottawa, Ontario
- C.T. Lamont Primary Health Care Research Centre, Bruyere Research Institute, Ottawa, Ontario
| | - Kate Mason
- South Riverdale Community Health Centre, Toronto, Ontario
| | | | | | - Jennifer Broad
- South Riverdale Community Health Centre, Toronto, Ontario
| | | | | | - Jeff Powis
- South Riverdale Community Health Centre, Toronto, Ontario
- Michael Garron Hospital, Toronto, Ontario
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Mandel E, E Kendall C, Mason K, Guyton M, Lettner B, Broad J, Altenberg J, Donelle J, Powis J. Impact of comprehensive care on health care use among a cohort of marginalized people living with hepatitis C in Toronto. CANADIAN LIVER JOURNAL 2020; 3:203-211. [DOI: 10.3138/canlivj.2019-0021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 09/14/2019] [Indexed: 11/20/2022]
Abstract
Background: The majority of new hepatitis C (HCV) cases occur among people who inject drugs. In recent years, multidisciplinary models of HCV treatment have emerged that demonstrate successful treatment outcomes for this population, as well as broad positive individual- and system-level impacts. Our objective was to evaluate changes in health care use among a cohort of people living with HCV before and after engagement with one such program. Methods: Program data were uniquely linked to provincial health administrative databases. Rates of emergency department (ED) visits and hospital admissions of clients from 2011 through 2015 ( N = 103) were evaluated using linkages with administrative data for the 2 years before and after program initiation. Data were evaluated using negative binomial regression models with a covariance structure to account for within-individual correlations. Results: Of participants, 72.8% were men (mean age 47 years), and 38% experienced high rates of physical and mental health comorbidity (Aggregated Diagnosis Group score ≥10). Female clients had significantly fewer ED visits 2 years after program initiation (5.04 versus 3.12; risk ratio [RR] 0.61 [95% CI 0.44% to 0.86%]). ED visits for infectious diseases and soft tissue injury were significantly lower for the cohort overall (RRs 0.58 0.51 [95% CIs 0.35% to 0.95% and 0.29% to 0.90%], respectively). Conclusion: Co-locating HCV treatment within comprehensive primary care and harm reduction services appears to have benefits beyond HCV, including a reduction in ED visits among women and a decrease in ED visits for soft tissue infections for all participants.
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Affiliation(s)
- Erin Mandel
- Toronto Centre for Liver Disease, University Health Network, Toronto, Ontario
| | - Claire E Kendall
- Department of Family Medicine, University of Ottawa, Ottawa, Ontario
- C.T. Lamont Primary Health Care Research Centre, Bruyere Research Institute, Ottawa, Ontario
| | - Kate Mason
- South Riverdale Community Health Centre, Toronto, Ontario
| | | | | | - Jennifer Broad
- South Riverdale Community Health Centre, Toronto, Ontario
| | | | | | - Jeff Powis
- South Riverdale Community Health Centre, Toronto, Ontario
- Michael Garron Hospital, Toronto, Ontario
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Hajarizadeh B, Cunningham EB, Valerio H, Martinello M, Law M, Janjua NZ, Midgard H, Dalgard O, Dillon J, Hickman M, Bruneau J, Dore GJ, Grebely J. Hepatitis C reinfection after successful antiviral treatment among people who inject drugs: A meta-analysis. J Hepatol 2020; 72:643-657. [PMID: 31785345 DOI: 10.1016/j.jhep.2019.11.012] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/30/2019] [Accepted: 11/05/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS HCV reinfection following successful treatment can compromise treatment outcomes. This systematic review assessed the rate of HCV reinfection following treatment among people with recent drug use and those receiving opioid agonist therapy (OAT). METHODS We searched bibliographic databases and conference abstracts for studies assessing post-treatment HCV reinfection rates among people with recent drug use (injecting or non-injecting) or those receiving OAT. Meta-analysis was used to cumulate reinfection rates and meta-regression was used to explore heterogeneity across studies. RESULTS Thirty-six studies were included (6,311 person-years of follow-up). The overall rate of HCV reinfection was 5.9/100 person-years (95% CI 4.1-8.5) among people with recent drug use (injecting or non-injecting), 6.2/100 person-years (95% CI 4.3-9.0) among people recently injecting drugs, and 3.8/100 person-years (95% CI 2.5-5.8) among those receiving OAT. Reinfection rates were comparable following interferon-based (5.4/100 person-years; 95% CI 3.1-9.5) and direct-acting antiviral (3.9/100 person-years; 95% CI 2.5-5.9) therapy. In stratified analysis, reinfection rates were 1.4/100 person-years (95% CI 0.8-2.6) among people receiving OAT with no recent drug use, 5.9/100 person-years (95% CI 4.0-8.6) among people receiving OAT with recent drug use, and 6.6/100 person-years (95% CI 3.4-12.7) among people with recent drug use not receiving OAT. In meta-regression analysis, longer follow-up was associated with lower reinfection rate (adjusted rate ratio [aRR] per year increase in mean/median follow-up 0.77; 95% CI 0.69-0.86). Compared with people receiving OAT with no recent drug use, those with recent drug use receiving OAT (aRR 3.50; 95% CI 1.62-7.53), and those with recent drug use not receiving OAT (aRR 3.96; 95% CI 1.82-8.59) had higher reinfection rates. CONCLUSION HCV reinfection risk following treatment was higher among people with recent drug use and lower among those receiving OAT. The lower rates of reinfection observed in studies with longer follow-up suggested higher reinfection risk early post-treatment. LAY SUMMARY Our findings demonstrate that although reinfection by hepatitis C virus occurs following successful treatment in people with recent drug use, the rate of hepatitis C reinfection is lower than the rates of primary infection reported in the literature for this population - reinfection should not be used as a reason to withhold therapy from people with ongoing injecting drug use. The rate of hepatitis C reinfection was lowest among people receiving opioid agonist therapy with no recent drug use. These data illustrate that harm reduction services are required to reduce the reinfection risk, while regular post-treatment hepatitis C assessment is required for early detection and retreatment.
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Affiliation(s)
| | | | | | | | - Matthew Law
- The Kirby Institute, UNSW Sydney, Sydney, NSW, Australia
| | - Naveed Z Janjua
- British Columbia Centre for Disease Control, Vancouver, BC, Canada; School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Håvard Midgard
- Department of Gastroenterology, Oslo University Hospital, Oslo, Norway
| | | | - John Dillon
- Ninewells Hospital and Medical School, University of Dundee, Dundee, The United Kingdom
| | - Matthew Hickman
- Population Health Sciences, University of Bristol, Bristol, The United Kingdom
| | - Julie Bruneau
- Centre Hospitalier de l'Université de Montréal, Montréal, QC, Canada
| | - Gregory J Dore
- The Kirby Institute, UNSW Sydney, Sydney, NSW, Australia
| | - Jason Grebely
- The Kirby Institute, UNSW Sydney, Sydney, NSW, Australia
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Liu Y, Zhang H, Zhang L, Zou X, Ling L. Economic Evaluation of Hepatitis C Treatment Extension to Acute Infection and Early-Stage Fibrosis Among Patients Who Inject Drugs in Developing Countries: A Case of China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17030800. [PMID: 32012839 PMCID: PMC7037788 DOI: 10.3390/ijerph17030800] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/22/2020] [Accepted: 01/24/2020] [Indexed: 12/20/2022]
Abstract
We aimed to assess the cost-effectiveness of (1) treating acute hepatitis C virus (HCV) vs. deferring treatment until the chronic phase and (2) treating all chronic patients vs. only those with advanced fibrosis; among Chinese genotype 1b treatment-naïve patients who injected drugs (PWID), using a combination Daclatasvir (DCV) plus Asunaprevir (ASV) regimen and a Peg-interferon (PegIFN)-based regimen, respectively. A decision-analytical model including the risk of HCV reinfection simulated lifetime costs and quality-adjusted life-years (QALYs) of three treatment timings, under the DCV+ASV and PegIFN regimen, respectively: Treating acute infection (“Treat at acute”), treating chronic patients of all fibrosis stages (“Treat at F0 (no fibrosis)”), treating only advanced-stage fibrosis patients (“Treat at F3 (numerous septa without cirrhosis)”). Incremental cost-effectiveness ratios (ICERs) were used to compare scenarios. “Treat at acute” compared with “Treat at F0” was cost-saving (cost: DCV+ASV regimen—US$14,486.975 vs. US$16,224.250; PegIFN-based regimen—US$19,734.794 vs. US$22,101.584) and more effective (QALY: DCV+ASV regimen—14.573 vs. 14.566; PegIFN-based regimen—14.148 vs. 14.116). Compared with “Treat at F3”; “Treat at F0” exhibited an ICER of US$3780.20/QALY and US$15,145.98/QALY under the DCV+ASV regimen and PegIFN-based regimen; respectively. Treatment of acute HCV infection was highly cost-effective and cost-saving compared with deferring treatment to the chronic stage; for both DCV+ASV and PegIFN-based regimens. Early treatment for chronic patients with DCV+ASV regimen was highly cost-effective.
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Affiliation(s)
- Yin Liu
- Department of Medical Statistics, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (Y.L.); (X.Z.)
- Sun Yat-sen Center for Migrant Health Policy, Sun Yat-Sen University, Guangzhou 510080, China
| | - Hui Zhang
- Department of Health Policy and Management, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China;
| | - Lei Zhang
- China-Australia Joint Research Center for Infectious Diseases, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710000, China;
- Melbourne Sexual Health Center, Alfred Health, Melbourne VIC 3053, Australia
- Central Clinical School, Faculty of Medicine, Monash University, Melbourne, VIC 3800, Australia
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Xia Zou
- Department of Medical Statistics, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (Y.L.); (X.Z.)
- Sun Yat-sen Center for Migrant Health Policy, Sun Yat-Sen University, Guangzhou 510080, China
| | - Li Ling
- Department of Medical Statistics, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (Y.L.); (X.Z.)
- Sun Yat-sen Center for Migrant Health Policy, Sun Yat-Sen University, Guangzhou 510080, China
- Correspondence: ; Tel.: +86-020-873-3319
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Liu Y, Zou X, Chen W, Gong C, Ling L. Hepatitis C Virus Treatment Status and Barriers among Patients in Methadone Maintenance Treatment Clinics in Guangdong Province, China: A Cross-Sectional, Observational Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16224436. [PMID: 31726750 PMCID: PMC6888391 DOI: 10.3390/ijerph16224436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/31/2019] [Accepted: 11/08/2019] [Indexed: 12/13/2022]
Abstract
We aimed to evaluate the status and barriers related to hepatitis C virus (HCV) treatment among Chinese methadone maintenance treatment (MMT) clients, and the willingness and barriers of patients to accept directly observed treatment (DOT) service and oral direct-acting antivirals (DAAs). We conducted a cross-sectional survey from July to October 2017 in Guangdong Province, China, involving 678 HCV antibody-positive MMT patients. If they reported being infected with HCV, then their HCV treatment experience, willingness to use DOT and DAAs, along with any barriers, were collected. Logistic regression analysis was used to identify the correlates of initiating HCV treatment. Among those reporting HCV infection (54%, 366/678), 39% (144/366) initiated treatment; however, 38% (55/144) interrupted and 55% (79/135) delayed treatment for 15 months. Seventy-five percent (273/366) and 53% (195/366) were willing to use DOT and DAAs, respectively. Unaffordable medical costs and insignificant symptoms were the major barriers to HCV treatment and accepting DOT or DAAs. The lack of a stable residence, being a woman, and having ever injected drugs were all associated with a low probability of initiating treatment (p < 0.05). This study highlights a limited uptake of HCV treatment among MMT patients, and a need to strengthen the popularity of DOT and DAAs and integrate them into Chinese MMT clinics.
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Affiliation(s)
| | | | | | | | - Li Ling
- Correspondence: ; Tel.: +86-020-873-3319
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20
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Huang MH, Chang SY, Liu CH, Cheng A, Su LH, Liu WC, Su YC, Sun HY, Hung CC, Chang SC. HCV reinfections after viral clearance among HIV-positive patients with recent HCV infection in Taiwan. Liver Int 2019; 39:1860-1867. [PMID: 31343813 DOI: 10.1111/liv.14199] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 05/14/2019] [Accepted: 07/04/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND Higher rates of hepatitis C virus (HCV) reinfection after viral clearance have been well described among HIV-positive men who have sex with men (MSM) in Europe. The epidemiology of HCV reinfection, however, has rarely been investigated among HIV-positive patients in Asia-Pacific region. METHODS We retrospectively identified HIV-positive patients with recent HCV infection who had cleared their primary infection, either spontaneously or via treatment, between January 2011 and May 2018. All included patients were observed until 31 March 2019. HCV reinfection was defined as recurrent HCV viraemia after achieving viral clearance with anti-HCV treatment or after spontaneous clearance. RESULTS During the study period, 219 HIV-positive patients (90.4% MSM) were diagnosed with recent HCV infection. Viral clearance with successful treatment was achieved in 108 patients (49.3%) and spontaneous clearance occurred in 20 (9.1%); of them, 18 (14.1%) acquired HCV reinfections, resulting in an incidence rate of 8.2 per 100 person-years of follow-up (95% CI 5.2-13.1). With the adjusted Cox proportional hazards model, we found a higher reinfection risk in patients with syphilis (adjusted hazard ratio 10.3, 95% CI 1.4-77.8, P = .023) compared to those without syphilis. HCV RNA testing, if performed only following syphilis and elevated aminotransferases, might miss 44.4% and 33.3% of HCV reinfections, respectively. CONCLUSIONS Similar to the findings in Europe, we observed a high incidence of HCV reinfection among HIV-positive Taiwanese with recent HCV infection, which was significantly associated with syphilis. To identify HCV reinfections, annual HCV RNA testing should be instituted instead of testing driven by symptoms, syphilis or elevated aminotransferases.
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Affiliation(s)
- Miao-Hui Huang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.,Department of Internal Medicine, Buddhist Tzu Chi General Hospital and Tzu Chi University, Hualien, Taiwan
| | - Sui-Yuan Chang
- Department of Laboratory Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.,Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chen-Hua Liu
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Aristine Cheng
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Li-Hsin Su
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Wen-Chun Liu
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yi-Ching Su
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsin-Yun Sun
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - 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.,Department of Medical Research, China Medical University Hospital, Taichung, Taiwan.,China Medical University, Taichung, Taiwan
| | - Shan-Chwen Chang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
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21
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Selfridge M, Cunningham EB, Milne R, Drost A, Barnett T, Lundgren K, Guarasci K, Grebely J, Fraser C. Direct-acting antiviral treatment for hepatitis C, reinfection and mortality among people attending an inner-city community health centre in Victoria, Canada. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2019; 72:106-113. [PMID: 31178254 DOI: 10.1016/j.drugpo.2019.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/08/2019] [Accepted: 03/13/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Direct-acting antiviral (DAA) treatment for hepatitis C virus (HCV) has been shown to be effective among PWID, but more real-world data on treatment outcomes is needed. The aim of this analysis was to assess the efficacy of DAA therapy, and the rate of reinfection and mortality among people attending an inner-city community health centre in Victoria, Canada. METHODS In this retrospective study, patients treated with DAA therapy between November 2014 and Dec 31, 2017 were included. Retrospective chart review was performed to assess recent injecting drug use (IDU, previous six months) or receipt of opioid agonist treatment (OAT). The primary endpoint was Sustained Virologic Response (SVR12). Secondary endpoints included HCV reinfection and mortality. RESULTS Of 270 patients who initiated DAA treatment (31% female), 20% (n=54) had HIV/HCV coinfection, 32% (n=84) had cirrhosis, 67% (n=181) had genotype 1, 6% (n=15) had genotype 2, 26% (n=69) had genotype 3. 46% (n=125) of patients were receiving OAT and 49% (n=132) reported recent IDU. 98% (n=265) completed treatment; two people stopped due to mental health, two people died, and one was non-adherent. 92% (249 of 270) achieved SVR12. 16 patients with End of Treatment (EOT) response did not have a SVR12; 7 were lost to follow-up; 2 people refused bloodwork; 2 people died; 1 had reinfection; and 4 had viral relapse. There was no difference in SVR12 by OAT (OAT, 93% vs. no OAT, 91%, P=0.435), recent injecting drug use (yes, 92% vs. no, 92%, P=0.904), or HIV status (HIV, 92% vs. no HIV, 94%, P=0.498). Eight cases of HCV reinfection were observed over 253 person-years of follow up (3.2 cases per 100 person-years; 95% CI 1.6-6.3). Twenty people died (6.3 per 100 person-years; 95% CI 3.9-10.3), including two during therapy (drug overdose, n=2) and 18 following therapy completion (drug overdose, n=7). CONCLUSION This study demonstrates that DAA treatment is effective among a marginalized population receiving care in an inner-city community health centre. The high mortality in this study highlights the importance of integrating HCV care within a framework addressing drug-related harms, preventing overdose mortality, addressing social inequalities, and improving the health of PWID.
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Affiliation(s)
| | | | | | - Anne Drost
- Cool Aid Community Health Centre, Victoria, Canada
| | | | | | | | | | - Chris Fraser
- Cool Aid Community Health Centre, Victoria, Canada
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22
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Marco A, Guerrero RA, Vergara M, Gallego C, Solé C, Planella R, Vaz ME, Teixidó N, Sastre A, Touzón C, da Silva A, Almada G, Ruíz A, Caylà JA, Turu E. Reinfection in a large cohort of prison inmates with sustained virological response after treatment of chronic hepatitis C in Catalonia (Spain), 2002-2016. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2019; 72:189-194. [PMID: 31160156 DOI: 10.1016/j.drugpo.2019.05.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 04/08/2019] [Accepted: 05/15/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Prisoners and other high-risk patients who show a sustained virological response (SVR) after treatment for hepatitis C virus (HCV) can become reinfected. We aimed to calculate the rate of HCV reinfection in a large cohort of inmates with SVR and to determine factors that predict reinfection. METHODS We included all inmates treated for hepatitis C in Catalonia (Spain) from January 2002 to December 2016 who achieved SVR and in whom viral load was subsequently determined. The incidence rate was calculated per 100 person-years (100 py) of follow up. Risk factors associated with reinfection were evaluated by bivariate log-rank test and multivariate Cox regression. Hazard ratio (HR) and their 95% confidence intervals (CI) were calculated. RESULTS 602 patients were included, with a mean age of 37.9 years: 95% were men, 74.1% had a history of intravenous drug use (IDU) and 28.7% were HIV-infected. Patients were followed for a total of 2154.9 years (average 3.58 ± 3.1 years). 63 (10.5%) had HCV reinfection. 41 (65.1%) presented different genotype/subgenotype, 8 the initial genotype/subgenotype, and in 14 (22.2%) the genotype could not be determined. Of the 21 reinfected patients who were interviewed, 20 (95.2%) reported IDU after antiviral treatment, and 7 (33.3%) during treatment. The overall incidence of reinfection was 2.9 cases per 100 py. All reinfections occurred in patients with IDU history. At multivariate level, HIV infection was associated with reinfection (HR = 3.03; CI:1.82-5.04). CONCLUSION In HIV-infected inmates with IDU history, the rate of reinfection of HCV post-SVR is very high. Prisons play a key role in the detection and treatment of infection and reinfection by HCV and in the post-treatment monitoring in these patients, which should be combined with counseling and the optimization of the harm reduction programs. Effective control of these vulnerable groups favours the elimination of the HCV infection.
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Affiliation(s)
- Andrés Marco
- Prison Health Program, Catalan Institute of Health, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain.
| | | | - Mercedes Vergara
- Hepatology Unit, Digestive Disease Department, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain; CIBERehd, Instituto Carlos III, Madrid, Spain.
| | - Carlos Gallego
- Health Services of Quatre Camins Penitentiary Centre, Barcelona, Spain.
| | - Concepció Solé
- Health Services of Puig de les Basses Penitentiary Centre, Girona, Spain.
| | - Ramón Planella
- Health Services of Ponent Penitentiary Centre, Lleida, Spain.
| | - M Elisa Vaz
- Health Services of Mas d'Enric Penitentiary Centre, Tarragona, Spain.
| | - Núria Teixidó
- Health Services of Brians-1 Penitentiary Centre, Barcelona, Spain.
| | - Ana Sastre
- Health Services of Brians-2 Penitentiary Centre, Barcelona, Spain.
| | - Carlos Touzón
- Health Services of Lledoners Penitentiary Centre, Barcelona, Spain.
| | - Antonio da Silva
- Health Services of Quatre Camins Penitentiary Centre, Barcelona, Spain.
| | - Guido Almada
- Health Services of Brians-1 Penitentiary Centre, Barcelona, Spain
| | - Ana Ruíz
- Health Services of Brians-2 Penitentiary Centre, Barcelona, Spain.
| | - Joan A Caylà
- Foundation of Tuberculosis Research Unit of Barcelona, Spain.
| | - Elisabet Turu
- Prison Health Program, Catalan Institute of Health, Spain.
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23
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Dore GJ. HCV reinfection as a positive indication of high-risk population treatment access. J Viral Hepat 2019; 26:516-518. [PMID: 30803082 DOI: 10.1111/jvh.13092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 02/04/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Gregory J Dore
- Kirby Institute, UNSW Sydney, Sydney, New South Wales, Australia
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Reinfection by hepatitis C virus following effective all-oral direct-acting antiviral drug therapy in HIV/hepatitis C virus coinfected individuals. AIDS 2019; 33:685-689. [PMID: 30829744 DOI: 10.1097/qad.0000000000002103] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVES We analysed hepatitis C virus (HCV) reinfection among participants in a prospective registry of HIV/HCV-coinfected patients treated with all-oral direct-acting antiretroviral (DAA)-based therapy in the region of Madrid. DESIGN An observational cohort study. METHODS The study period started on the date sustained viral response (SVR) was confirmed. The censoring date was 31 December 2017. SVR was defined as negative HCV-RNA 12 weeks after completion of treatment. Reinfection was defined as a positive HCV-RNA test result after achievement of SVR. RESULTS Reinfections were detected in 17 of 2359 HIV/HCV-coinfected patients (0.72%) overall, in 12 out of 177 (6.78%) MSM and in five out of 1459 (0.34%) people who inject drugs (PWID). The incidence of reinfection [95% confidence interval (95% CI)] per 100 person-years was 0.48 (0.30-0.77) overall, 5.93 (3.37-10.44) for MSM and 0.21 (0.09-0.52) for PWID. Reinfections were detected a median of 15 weeks (interquartile range 13-26) after SVR. In 10 (58.82%) patients, the reinfection was caused by a different HCV genotype. All 12 MSM with reinfection acknowledged unprotected anal intercourse with several partners, seven used chemsex, six reported fisting and four practiced slamming. A concomitant STI was detected in five patients. Four IDU with reinfection reported injecting drugs following SVR. CONCLUSION HCV reinfection is a matter of concern in HIV-positive MSM treated with all-oral DAA therapy in the region of Madrid. Our data suggest that prevention strategies and frequent testing with HCV-RNA should be applied following SVR in MSM who engage in high-risk practices.
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