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Published on: October 6, 2022
Antiviral treatment for chronic hepatitis C in patients with human immunodeficiency virus
Alfonso Iorio1, Emanuela Marchesini, Tahany Awad
1Department of Internal Medicine, University of Perugia, Ospedale Santa Maria della Misericordia, Località Sant'Andrea delle Fratte, Perugia, Italy, 06126.
Insights
Peginterferon plus ribavirin effectively treats chronic hepatitis C in patients with HIV, clearing HCV RNA. However, careful monitoring for adverse events like anemia and flu-like symptoms is crucial.
Area of Science:
- Hepatology
- Virology
- Infectious Diseases
Background:
- Co-infection with human immunodeficiency virus (HIV) can reduce the effectiveness of antiviral treatment for chronic hepatitis C.
- Assessing treatment efficacy and safety in this specific patient population is critical.
Purpose of the Study:
- To evaluate the benefits and harms of antiviral therapies for chronic hepatitis C in individuals coinfected with HIV.
- To determine optimal treatment strategies for hepatitis C in the context of HIV coinfection.
Main Methods:
- Systematic review of randomized controlled trials comparing anti-hepatitis C virus (HCV) treatments.
- Included patients had chronic hepatitis C and stable HIV, regardless of prior treatment.
- Data extraction and risk of bias assessment were performed in duplicate; intention-to-treat analysis was used.
Main Results:
- Peginterferon plus ribavirin demonstrated higher efficacy in achieving end-of-treatment and sustained virological response compared to interferon plus ribavirin or peginterferon alone.
- Treatment benefits were observed across HCV genotypes, though response rates were lower for genotypes 1 and 4.
- Overall mortality showed no significant difference between treatment regimens, but adverse events such as anemia and flu-like symptoms increased, with rare serious events reported.
Conclusions:
- Peginterferon plus ribavirin is a potential treatment for treatment-naive patients with chronic hepatitis C and stable HIV, showing promise in clearing HCV RNA.
- Evidence primarily supports its use based on surrogate outcomes; data for patients with prior treatment failure are lacking.
- Close monitoring for adverse events is essential due to increased risks associated with the treatment.
Background:
Antiviral treatment for chronic hepatitis C may be less effective if patients are co-infected with human immunodeficiency virus (HIV).
Objectives:
To assess the benefits and harms of antiviral treatment for chronic hepatitis C in patients with HIV.
Search Strategy:
Trials were identified through manual and electronic searches in The Cochrane Hepato-Biliary Group Controlled Trials Register, the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library, MEDLINE, EMBASE, and Science Citation Index Expanded. The last search was May 2009.
Selection Criteria:
Randomised trials comparing at least 12 weeks of any anti-HCV treatment versus another treatment regimen or no treatment. Included patients had chronic hepatitis C and stable HIV irrespective of previous antiviral therapy.
Data Collection And Analysis:
Data extraction and assessment of risk of bias were done in duplicate. Analysis was by intention-to-treat.
Main Results:
Fourteen trials were included. None of the included 2269 patients were previously treated for chronic hepatitis C. Peginterferon (either 2a, 180 microgram, or 2b, 1.5 microgram/kg, once weekly) plus ribavirin was more effective in achieving end of treatment and sustained virological response compared with interferon plus ribavirin (5 trials, 1340 patients) or peginterferon (2 trials, 714 patients). The benefit of peginterferon plus ribavirin was seen irrespective of HCV genotype although patients with genotype 1 or 4 had lower response rates (27%) than patients with genotype 2 or 3 (56%). The remaining trials compared different treatment regimens in patients who were treatment naive or had no virological response after three months of treatment, but overall they had not enough power to show any effect of increasing the dose of interferon or adding both amantadine or ribavirin. The overall mortality was 23/2111 patients with no significant differences between treatment regimens. Treatment increased the risk of adverse events including anaemia and flu-like symptoms, and several serious adverse events occurred including fatal lactic acidosis, liver failure, and suicide due to depression.
Authors' Conclusions:
Peginterferon plus ribavirin may be considered a treatment for patients with chronic hepatitis C and stable HIV who have not received treatment for hepatitis C as the intervention may clear the blood of HCV RNA. Supporting evidence comes mainly from the analysis of this non-validated surrogate outcome assessed in comparisons against other antiviral treatments. There is no evidence on treatment of patients who have relapsed or did not respond to previous therapy. Careful monitoring of adverse events is warranted.
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