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Published on: February 19, 2019
Chronic hepatitis C viral infection in patients with normal serum alanine aminotransferases
1Department of Internal Medicine, Saint Louis University School of Medicine, Missouri 63104, USA.
Insights
Many chronic hepatitis C virus (HCV) patients with normal ALT levels remain untreated. A small study showed a 33% sustained response to interferon/ribavirin, indicating a need for better therapies.
Area of Science:
- Hepatology
- Virology
- Clinical Medicine
Background:
- A significant number of patients with chronic hepatitis C virus (HCV) infection exhibit persistently normal serum alanine aminotransferases (ALT).
- These patients present a therapeutic challenge due to unclear treatment guidelines and low response rates to interferon monotherapy.
- Interferon therapy has, in some instances, led to elevated serum aminotransferases, complicating treatment decisions.
Purpose of the Study:
- To evaluate the efficacy of interferon and ribavirin combination therapy in patients with chronic hepatitis C virus infection and persistently normal serum ALT.
- To address the therapeutic dilemma posed by this patient subgroup.
Main Methods:
- A cohort of 24 patients with normal ALT levels and chronic HCV infection were treated with a combination of interferon and ribavirin.
- Patient outcomes were assessed, focusing on sustained virologic response.
Main Results:
- Preliminary analysis indicated a 33% sustained response rate at 24 weeks post-therapy in the treated group.
- This response rate suggests potential, but highlights limitations of current therapies for this specific HCV population.
Conclusions:
- Current therapies, including interferon/ribavirin, offer limited efficacy for chronic hepatitis C virus patients with normal ALT levels.
- Further research into more effective and better-tolerated treatments is warranted to effectively manage and potentially eradicate chronic HCV infection in this cohort.
Abstract:
A substantial proportion of patients with chronic hepatitis C virus (HCV) infection (HCV RNA positive) have persistently normal serum alanine aminotransferases (ALT). These patients currently pose a therapeutic dilemma, as it is not clear how best to deal with them. Response rates to interferon are low, and in some cases interferon therapy has been associated with an increase in serum aminotransferases. Therefore, the NIH Consensus Conference recommended against treating them with interferon. Although most patients with persistently normal serum ALT levels have mild disease on liver biopsy, the consensus panel did think it appropriate to do liver biopsies in these subjects. Few data are available on therapy with the combination of interferon and ribavirin for such patients. At Saint Louis University, 24 patients with normal ALT were treated with interferon/ribavirin. Preliminary analysis of the results shows that 33% of the patients had a sustained response 24 weeks after therapy. Thus, uncertainties remain about patients with chronic HCV infection and persistently normal serum ALT with the currently available therapies. However, if a more effective and better tolerated therapy were to become available, such patients might best be treated to eliminate the chronic viral infection.
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