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Treatment of chronic hepatitis C genotype 4 with alpha-interferon in Saudi Arabia: a multicenter study
F Z al-Faleh1, F Sbeih, M al-Karawi
1Department of Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
Insights
Liver cirrhosis significantly impacts alpha-interferon treatment response in chronic hepatitis C patients. Hepatitis C virus (HCV) genotype 4 did not affect treatment outcomes in this Arab population.
Area of Science:
- Hepatology
- Virology
- Internal Medicine
Background:
- Chronic hepatitis C (HCV) treatment response is influenced by factors like gender, infection duration, cirrhosis, and HCV genotype.
- Hepatitis C virus (HCV) genotype 4 is prevalent in many Middle Eastern and North African populations.
Purpose of the Study:
- To evaluate predictive factors for alpha-interferon treatment response in Saudi and Arab patients with chronic hepatitis C genotype 4.
- To assess the efficacy of alpha-interferon in a cohort of Arab patients with chronic hepatitis C genotype 4.
Main Methods:
- A multicenter study involving 80 consecutive patients with chronic hepatitis C genotype 4.
- Patients were prospectively recruited between 1992 and 1994 and randomized into treatment and control groups.
Main Results:
- The overall response rate to alpha-interferon was low at 43%, with only 28% achieving a complete response.
- Sustained virologic response was achieved in a mere 16% of patients.
- High rates of cirrhosis (80%) and long infection intervals in community-acquired HCV cases contributed to the low response rate.
Conclusions:
- Liver cirrhosis emerged as the primary factor predicting a poor response to interferon therapy.
- Hepatitis C virus (HCV) genotype 4 was not found to be a significant factor influencing treatment response rates.
Background/Aim:
Several studies have indicated that there are certain predictive factors (gender, duration of infection with HCV, cirrhosis and genotype of HCV) of a better response with alpha-interferon treatment in patients with chronic hepatitis C. The aim of this study was to evaluate these factors in Saudis and other Arab nationals with chronic hepatitis C-genotype 4-undergoing alpha-interferon treatment.
Methodology:
A multicenter study was conducted between 1992 and 1994 on 80 consecutive patients who were prospectively recruited and randomized in treatment and control groups.
Results:
The results of this multicenter study indicated a low response rate to alpha-interferon with an overall response rate of 43%, of which 28% was complete. The sustained response was only 16%. Among the reasons for this low response in our study are the high percentage of patients with cirrhosis and the long infection interval, as about 80% of our HCV cases were community-acquired.
Conclusion:
Liver cirrhosis was found to be the main predetermining factor for response to interferon treatment. Genotype 4 was not a contributing factor to the difference in response rate.
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