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Published on: September 30, 2021
Managing chronic hepatitis C in the difficult-to-treat patient
1Division of Digestive Diseases, University of Cincinnati College of Medicine, Cincinnati, OH 45267-0595, USA.
Insights
Managing chronic hepatitis C virus (HCV) infection is challenging, especially for non-responders. This review covers risk factors and management strategies for difficult-to-treat HCV patients, including retreatment options.
Area of Science:
- Hepatology
- Virology
- Gastroenterology
Background:
- Chronic hepatitis C virus (HCV) infection presents management challenges, particularly with complications like cirrhosis and liver failure.
- Current pegylated interferon (peg-IFN) plus ribavirin therapy achieves viral eradication in only about 50% of patients, with many experiencing non-response or relapse.
- Identifying factors influencing treatment response is crucial for optimizing outcomes in difficult-to-treat HCV patients.
Purpose of the Study:
- To review risk factors associated with resistance to hepatitis C virus (HCV) treatment.
- To discuss the assessment and management strategies for patients with chronic HCV who are resistant to therapy.
- To explore retreatment options for patients who have failed initial HCV treatment.
Main Methods:
- Review of existing literature on HCV treatment resistance.
- Analysis of factors influencing response to interferon-based therapies.
- Evaluation of retreatment strategies including pegylated interferon and consensus interferon.
Main Results:
- Several viral, hepatic, and patient-related factors influence response to interferon therapy.
- Early identification of risk factors and viral load can predict treatment response.
- Retreatment with peg-IFN and consensus IFN shows efficacy in non-responders and relapsers, though optimal duration is undetermined.
Conclusions:
- Effective management of treatment-resistant chronic hepatitis C virus (HCV) requires understanding risk factors and utilizing available retreatment options.
- Early assessment and potential modification or discontinuation of treatment are key for non-responders.
- Further research is needed to determine optimal retreatment durations and the role of maintenance therapy for chronic hepatitis C virus (HCV).
Abstract:
Patients with chronic hepatitis C virus (HCV) infection and disease-related complications - among them cirrhosis and liver failure - pose a particular management challenge. Some of these patients may fail to respond to current therapy (non-responders), and some are affected so severely that treatment puts them at an unacceptable risk for complications. Treatment with pegylated interferon (peg-IFN) plus ribavirin improves hepatic enzyme levels and eradicates the virus in approximately 50% of patients; however, a significant number of patients do not respond to therapy or relapse following treatment discontinuation. Several viral, hepatic and patient-related factors influence response to IFN therapy; many of these factors cannot be modified to improve long-term outcomes. Identifying risk factors and measuring viral load early in the treatment can help to predict response to IFN therapy and determine the need to modify or discontinue treatment. Retreatment options for patients who have failed therapy are limited. Retreatment with peg-IFN has been successful in some patients who exhibit an inadequate response to conventional IFN treatment, particularly those who have relapsed. Consensus IFN, another option in treatment-resistant patients, has demonstrated efficacy in the retreatment of non-responders and relapsers. Although the optimal duration of retreatment and the benefits and safety of maintenance therapy have not been determined, an extended duration is likely needed. This article reviews the risk factors for HCV treatment resistance and discusses the assessment and management of difficult-to-treat patients.
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