Introduction: Concerns about reinfection may be limiting HCV treatment uptake among people who use drugs (PWUD), with rates of 17.1/100 person-years in some cohorts. The aim of this study was to evaluate reinfection following successful treatment for hepatitis C virus infection in a cohort of people who inject drugs in Vancouver, Canada.
Methods: We identified a cohort of HCV-infected PWUD treated at our centre. Following cure, patients were maintained in long-term follow-up in a multidisciplinary program to address their medical, psychological, social, and addiction-related needs. HCV RNA measurements were repeated every 6 months, and ongoing drug use was documented. The primary outcome of this analysis was the occurrence of reinfection.
Results: 243 recent PWUD (use within 6 months of treatment initiation) have achieved SVR and maintained in long-term follow-up. Ongoing drug use post-treatment was documented in 195 individuals. Key characteristics: mean age 53 years, 25% female, 78% treatment naïve, 17% cirrhotic. Reinfection occurred in 4 cases, all in patients with ongoing drug use. This incidence was 1.05/100 [95% 0.8-5.2] person years based on 379 person-years of follow-up in individuals currently using drugs.
Conclusion: Approaches including long-term maintenance in multidisciplinary care may optimize long-term outcomes of HCV treatment in PWUD.
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| http://dx.doi.org/10.1016/j.drugpo.2019.05.024 | DOI Listing |
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