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Updated: Jul 19, 2026

A Protocol for Analyzing Hepatitis C Virus Replication
Published on: June 26, 2014
[Chronic hepatitis C. Epidemiology and therapeutic results in 255 cases]
A Pérez Mota1, M A Blanco Coronado, J Graus Morales
1Servicio de Aparato Digestivo, Hospital Virgen de la Torre y Area Sanitaria 1, Madrid. arturopm@teleline.es
Insights
This study on chronic hepatitis C treatment found higher sustained viral response (SVR) rates with specific antiviral regimens. Adjusting treatment to body mass also yielded significant economic savings.
Area of Science:
- Hepatology
- Virology
- Clinical Medicine
Background:
- Chronic hepatitis C (HCV) affects a significant patient population.
- Understanding epidemiological factors and treatment outcomes is crucial for effective management.
- Genotype distribution influences treatment selection and efficacy.
Purpose of the Study:
- To analyze epidemiological data of chronic hepatitis C patients.
- To evaluate the efficacy of different antiviral treatment regimens based on HCV genotype.
- To assess the economic impact of treatment adjustments.
Main Methods:
- Retrospective review of 255 chronic hepatitis C patients diagnosed between 2003 and August 2005.
- Categorization of patients by HCV genotype (1, 2, 3, and 4).
- Comparison of treatment outcomes using PEG-Interferon alpha-2b + Ribavirin versus Interferon alpha 2b + Ribavirin, with body mass-adjusted dosing.
Main Results:
- Genotype 1 (79.05%) was the most prevalent, followed by genotype 3 (14.22%).
- Sustained viral response (SVR) rates were 61.95% for genotypes 1 and 4, and 85% for genotypes 3 and 2.
- Body mass-adjusted treatment led to an average saving of 868.94 Euro per case.
- Previous monotherapy with Interferon showed a significantly lower SVR (31.25%) compared to combination therapy.
Conclusions:
- Combination antiviral therapy, tailored to HCV genotype, achieves high SVR rates.
- Body mass-adjusted dosing is effective and economically beneficial.
- Combined therapy offers superior outcomes compared to Interferon monotherapy for chronic hepatitis C.
Abstract:
A review of the statistics of the years 2003, 2004 to August 2005 has provided data corresponding to 255 patients that were diagnosed and included in the treatment protocol of chronic hepatitis C. Epidemiologically, the 2/1 man/woman ratio, mean age of 43 years and history of transfusion (transf.) in 18.6% are to be noted. Parenteral drug addicition (PDA) in 17% and alcoholism in 14.1%, of unknown origin in 58.74% of the cases. 79.05% corresponded to genotype 1, 4.74% to genotype 4, 14.22% to genotype 3, and 2.76% to genotype 2. Genotypes 1 and 4 were included in the treatment regime with PEG-Interferon alpha-2b + Ribavirin (with doses adjusted for weight) and those of genotype 3 and 2 in the regime with Interferon alpha 2b + Ribavirin. In 95 cases of Genotype 1 (87) and 4 (8), a sustained viral response (SVR) of 61.95% was obtained, with three drop-outs. In the 20 cases of genotypes 3 (17) and 2 (3), SVR was 85%, with no drop-outs. In the 20 cases of genotypes 3 (17) and 2 (3), SVR was 85%, with no drop-outs. The adjustment of treatment to body mass involved an economic savings per case amounting to 868.94 Euro. Finally, in 16 cases of Genotype 1, before treated with Interferon in monotherapy, a sustained viral response of 31.25% was obtained with combined therapy.
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