Epidemiology of Hepatitis C Virus: People Who Inject Drugs and Other Key Populations

Author(s):  
Lucas Wiessing ◽  
Isabelle Giraudon ◽  
Erika Duffell ◽  
Irene Veldhuijzen ◽  
Ruth Zimmermann ◽  
...  
2015 ◽  
Vol 10 (5) ◽  
pp. 374-380 ◽  
Author(s):  
Natasha K. Martin ◽  
Peter Vickerman ◽  
Gregory J. Dore ◽  
Matthew Hickman

Author(s):  
Moonseong Heo ◽  
Irene Pericot-Valverde ◽  
Lior Rennert ◽  
Matthew J Akiyama ◽  
Brianna L Norton ◽  
...  

Abstract Background Adequate medication adherence is critical for achieving sustained viral response (SVR) of hepatitis C virus (HCV) among people who inject drugs (PWID). However, it is less known which patterns of direct-acting antiviral (DAA) treatment adherence are associated with SVR in this population or what factors are associated with each pattern. Methods The randomized three-arm PREVAIL study utilized electronic blister packs to obtain daily time frame adherence data in opiate agonist therapy program settings. Exact logistic regressions were applied to test the associations between SVR and six types of treatment adherence patterns. Results Of the 113 participants treated with combination DAAs, 109 (96.5%) achieved SVR. SVR was significantly associated with all pattern parameters except for number of switches between adherent and missed days: total adherent daily doses (exact AOR=1.12; 95%CI=1.04-1.22), percent total doses (1.09; 1.03-1.16), days on treatment (1.16; 1.05-1.32), maximum consecutive adherent days (1.34; 1.06-2.04), maximum consecutive non-adherent days (.85; .74-.95=.003). SVR was significantly associated with total adherent doses in the first two months of treatment, it was not in the last month. Compared to White participants (30.7±11.8(se)), Black (18.4±7.8) and Hispanic participants (19.2±6.1) had significantly shorter maximum consecutive adherent days. While alcohol intoxication was significantly associated with frequent switches, drug use was not associated with any adherence pattern. Conclusion Consistent maintenance of adequate total dose adherence over the entire course of HCV treatment is important in achieving SVR among PWID. Additional integrative addiction and medical care may be warranted for treating PWID experiencing alcohol intoxication.


2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Carissa E. Chu ◽  
Feng Wu ◽  
Xi He ◽  
Kali Zhou ◽  
Yu Cheng ◽  
...  

Abstract Background.  Hepatitis C virus (HCV) treatment access among human immunodeficiency virus (HIV)/HCV-coinfected people who inject drugs is poor, despite a high burden of disease in this population. Understanding barriers and facilitators to HCV treatment uptake is critical to the implementation of new direct-acting antivirals. Methods.  We conducted in-depth interviews with patients, physicians, and social workers at an HIV treatment facility and methadone maintenance treatment centers in Guangzhou, China to identify barriers and facilitators to HCV treatment. We included patients who were in various stages of HCV treatment and those who were not treated. We used standard qualitative methods and organized data into themes. Results.  Interview data from 29 patients, 8 physicians, and 3 social workers were analyzed. Facilitators and barriers were organized according to a modified Consolidated Framework for Implementation Research schematic. Facilitators included patient trust in physicians, hope for a cure, peer networks, and social support. Barriers included ongoing drug use, low HCV disease knowledge, fragmented reimbursement systems, HIV exceptionalism, and stigma. Conclusions.  Expanding existing harm reduction programs, HIV treatment programs, and social services may facilitate scale-up of direct-acting antivirals globally. Improving integration of ancillary social and mental health services within existing HIV care systems may facilitate HCV treatment access.


2019 ◽  
Vol 8 (1) ◽  
pp. 50 ◽  
Author(s):  
Michael Martin ◽  
Suphak Vanichseni ◽  
Wanna Leelawiwat ◽  
Rapeepan Anekvorapong ◽  
Boonyos Raengsakulrach ◽  
...  

PLoS ONE ◽  
2014 ◽  
Vol 9 (6) ◽  
pp. e97726 ◽  
Author(s):  
Jason Grebely ◽  
Viviane Dias Lima ◽  
Brandon D. L. Marshall ◽  
M-J Milloy ◽  
Kora DeBeck ◽  
...  

2013 ◽  
Vol 28 (4) ◽  
pp. 590-592 ◽  
Author(s):  
Natasha K Martin ◽  
Peter Vickerman ◽  
Alec Miners ◽  
Matthew Hickman

Addiction ◽  
2018 ◽  
Vol 113 (11) ◽  
pp. 2118-2131 ◽  
Author(s):  
Hannah Fraser ◽  
Christinah Mukandavire ◽  
Natasha K. Martin ◽  
David Goldberg ◽  
Norah Palmateer ◽  
...  

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