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Updated: Jun 23, 2026

A Protocol for Analyzing Hepatitis C Virus Replication
Published on: June 26, 2014
Eradication of hepatitis C virus in patients successfully treated for chronic hepatitis C
Sarah Maylin1, Michelle Martinot-Peignoux, Rami Moucari
1Université Paris VII, Hôpital Beaujon, Clichy, France.
Insights
Sustained virologic response (SVR) in chronic hepatitis C patients is durable and leads to liver fibrosis improvement. Residual hepatitis C virus (HCV) RNA was rarely detected in liver tissue, suggesting SVR may indicate HCV eradication.
Area of Science:
- Hepatology
- Virology
- Gastroenterology
Background:
- Chronic hepatitis C virus (HCV) infection poses a risk for liver disease progression.
- The long-term durability and potential eradication of HCV following sustained virologic response (SVR) remain subjects of investigation.
Purpose of the Study:
- To assess the durability of SVR in patients with chronic hepatitis C.
- To determine the presence of residual HCV RNA in serum, liver, and PBMCs post-SVR.
- To evaluate the impact of SVR on liver fibrosis and cirrhosis.
Main Methods:
- Long-term follow-up of 344 chronic hepatitis C patients achieving SVR after interferon-based therapy.
- Assessment of HCV RNA in serum, liver tissue, and PBMCs using transcription-mediated amplification.
- Evaluation of liver fibrosis using the METAVIR score and analysis of liver biopsy specimens.
Main Results:
- SVR was durable up to 18 years, with undetectable serum HCV RNA in all patients.
- Residual HCV RNA was detected in 1.7% of liver specimens but not in PBMCs.
- Liver fibrosis improved or stabilized in 88% of patients, with 64% showing cirrhosis regression.
Conclusions:
- SVR in chronic hepatitis C is a durable outcome associated with significant liver fibrosis improvement and cirrhosis regression.
- The rare detection of residual HCV RNA in liver tissue suggests that SVR may be considered indicative of HCV eradication.
- Long-term SVR offers substantial benefits for patients with chronic hepatitis C.
Background & Aims:
It is unclear whether hepatitis C virus (HCV) is eradicated in patients with chronic hepatitis C who achieved a sustained virologic response (SVR).
Methods:
In this long-term follow-up study, including chronic hepatitis C patients who achieved SVR after interferon-based therapy, the presence of residual HCV RNA in serum, liver, and peripheral blood mononuclear cells (PBMCs) was assessed, using transcription-mediated amplification (sensitivity, <9.6 IU/mL). The benefit of SVR on liver fibrosis was evaluated using the METAVIR score.
Results:
A total of 344 patients were followed up for a median duration of 3.27 years (range, 0.50-18 y; interquartile range [IQR], 1.68-5.35 y). A total of 114 patients had a posttreatment liver tissue (median, 0.50 y; range, 0-14 y; IQR, 0-3.5 y) and a total of 156 had one PBMC (median, 3.0 y; range, 0.50-18 y; IQR, 1.25-5.50 y). Serum HCV RNA remained undetectable (1300 samples), indicating that none of the patients had a relapse. HCV RNA was detectable in 2 of 114 (1.7%) liver specimens, and in none of 156 PBMC specimens. Histologic analysis of 126 paired pretreatment and posttreatment liver biopsy specimens (median, 0.50 y; range, 0-14 y; IQR, 0-3.5 y) showed that fibrosis stage was improved in 56%, stable in 32%, deteriorated in 12%. Regression of cirrhosis was observed in 9 of 14 (64%) (95% confidence interval, 39-89) patients. No cirrhosis decompensation was observed, and 3 patients developed hepatocellular carcinoma.
Conclusions:
In this large cohort of chronic hepatitis C patients, SVR was durable up to 18 years after treatment cessation, in addition to fibrosis stability/improvement (88%) and cirrhosis regression (64%). The presence of residual HCV RNA was observed only in liver tissue (1.7%). This result strongly suggests that SVR may be considered to show eradication of HCV infection.
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