scholarly journals Impact of Direct-Acting Antivirals on the Burden of HCV Infection Among Persons Who Inject Drugs and Men Who Have Sex With Men in the Swiss HIV Cohort Study

2018 ◽  
Vol 5 (7) ◽  
Author(s):  
Luisa Salazar-Vizcaya ◽  
Gilles Wandeler ◽  
Jan Fehr ◽  
Dominique Braun ◽  
Matthias Cavassini ◽  
...  

Abstract In the Swiss HIV Cohort Study, the number of people who inject drugs with replicating hepatitis C virus (HCV) infection decreased substantially after the introduction of direct-acting antivirals (DAAs). Among men who have sex with men, the increase in DAA uptake and efficacy was counterbalanced by frequent incident HCV infections.

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.


2017 ◽  
Vol 40 (10) ◽  
pp. 531-541 ◽  
Author(s):  
Fabrizio Fabrizi ◽  
Francesca M. Donato ◽  
Piergiorgio Messa

The frequency of hepatitis C virus (HCV) infection remains high in patients with chronic kidney disease (CKD) and plays a detrimental role in mortality in this population. According to the latest survey, the adjusted hazard ratio for HCV-positive versus HCV-negative patients on long-term dialysis was 1.12 (95% CI, 1.05 to 1.20) and 1.10 (95% CI, 0.98 to 1.22) for all-cause and cardiovascular mortality, respectively. An impairment on quality of life has also been documented in HCV-infected patients undergoing regular dialysis. Most clinicians have been so far reluctant to treat hepatitis C in patients with advanced CKD, due to concerns regarding low efficacy and safety of interferon-based regimens. The advent of all-oral, direct-acting antivirals (DAAs) has revolutionized treatment paradigms for HCV, including patients with other comorbidities such as CKD. Two combinations of DAAs have been recently approved for the treatment of HCV in advanced CKD: elbasvir/grazoprevir (evaluated in 1 randomized controlled trial) and ombitasvir/paritaprevir/ritonavir/dasabuvir with or without ribavirin (examined in some observational, single-arm studies). These antiviral combinations have provided high safety and efficacy (SVR12 rates >90%) in HCV-infected patients with stage 4–5 CKD. Sofosbuvir, a nucleotide analogue inhibitor of the HCV NS5B polymerase, is the cornerstone of most anti-HCV current regimens but is not currently recommended for patients with severe renal insufficiency (eGFR <30 mL/min per 1.73 m2). However, several small-sized studies have been published on the safety and efficacy of sofosbuvir-based regimens for patients with hepatitis C on maintenance dialysis>; overall, the viral response was satisfactory (SVR12 rates ranging between 58% and 100%) with a few drug-related drop-outs. Studies are in progress to assess whether ribavirin-free antiviral combinations with novel DAAs are a viable option for patients with severe renal impairment and chronic HCV infection.


2018 ◽  
Vol 7 (3) ◽  
pp. 373-385 ◽  
Author(s):  
Patricia A. M. Kracht ◽  
Faydra I. Lieveld ◽  
Linde M. Amelung ◽  
Carina J. R. Verstraete ◽  
Eveline P. Mauser-Bunschoten ◽  
...  

2015 ◽  
Vol 9 (2) ◽  
pp. 215-220 ◽  
Author(s):  
Tatsuo Kanda ◽  
Masato Nakamura ◽  
Reina Sasaki ◽  
Shin Yasui ◽  
Shingo Nakamoto ◽  
...  

Direct-acting antivirals with or without peginterferon α (PEG-IFN α) plus ribavirin are now available for the treatment of hepatitis C virus (HCV) infection. Direct-acting antivirals are potent inhibitors of HCV replication, but some of them occasionally possess serious adverse events. We experienced a 64-year-old female with chronic HCV genotype 1b infection who showed elevated alanine aminotransferase of 528 IU/l at week 9 after the commencement of treatment of simeprevir with PEG-IFN α-2a plus ribavirin. However, she achieved sustained virological response at week 24 after the end of treatment. In Japan, we also have to treat elderly patients infected with HCV and/or advanced hepatic fibrosis. Until an effective interferon-free regimen is established, direct-acting antivirals with PEG-IFN plus ribavirin may still play a role in the treatment for certain patients. To avoid serious results from adverse events, careful attention and follow-up will be needed in the treatment course of simeprevir with PEG-IFN plus ribavirin for chronic HCV infection.


2018 ◽  
Vol 38 (12) ◽  
pp. 2159-2169 ◽  
Author(s):  
Mohamed El Kassas ◽  
Yusuke Shimakawa ◽  
Zainab Ali-Eldin ◽  
Anna-Louise Funk ◽  
Mohamed Naguib Wifi ◽  
...  

Hepatology ◽  
2013 ◽  
Vol 58 (5) ◽  
pp. 1598-1609 ◽  
Author(s):  
Natasha K. Martin ◽  
Peter Vickerman ◽  
Jason Grebely ◽  
Margaret Hellard ◽  
Sharon J. Hutchinson ◽  
...  

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Gilles Wandeler ◽  
Marion Schlauri ◽  
Marie-Eve Jaquier ◽  
Janine Rohrbach ◽  
Karin J. Metzner ◽  
...  

Abstract Background.  The hepatitis C virus (HCV) epidemic is evolving rapidly in patients infected with human immunodeficiency virus (HIV). We aimed to describe changes in treatment uptake and outcomes of incident HCV infections before and after 2006, the time-point at which major changes in HCV epidemic became apparent. Methods.  We included all adults with an incident HCV infection before June 2012 in the Swiss HIV Cohort Study, a prospective nationwide representative cohort of individuals infected with HIV. We assessed the following outcomes by time period: the proportion of patients starting an HCV therapy, the proportion of treated patients achieving a sustained virological response (SVR), and the proportion of patients with persistent HCV infection during follow-up. Results.  Of 193 patients with an HCV seroconversion, 106 were diagnosed before and 87 after January 2006. The proportion of men who have sex with men increased from 24% before to 85% after 2006 (P &lt; .001). Hepatitis C virus treatment uptake increased from 33% before 2006 to 77% after 2006 (P &lt; .001). Treatment was started during early infection in 22% of patients before and 91% after 2006 (P &lt; .001). An SVR was achieved in 78% and 29% (P = .01) of patients treated during early and chronic HCV infection. The probability of having a detectable viral load 5 years after diagnosis was 0.67 (95% confidence interval [CI], 0.58–0.77) in the group diagnosed before 2006 and 0.24 (95% CI, 0.16–0.35) in the other group (P &lt; .001). Conclusions.  In recent years, increased uptake and earlier initiation of HCV therapy among patients with incident infections significantly reduced the proportion of patients with replicating HCV.


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