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Dermatologic disorders associated with chronic hepatitis C: effect of interferon therapy
David R Berk1, Susan Bayliss Mallory, Emmet B Keeffe
1Division of Dermatology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri, USA.
Insights
Chronic hepatitis C virus (HCV) infection can cause skin conditions. Data on how interferon therapy affects these extrahepatic manifestations in HCV patients is limited and shows variable responses.
Area of Science:
- Hepatology and Dermatology
- Virology and Immunology
Background:
- Chronic hepatitis C virus (HCV) infection is linked to various extrahepatic manifestations, notably dermatologic conditions like mixed cryoglobulinemia, porphyria cutanea tarda, and lichen planus.
- Patients with chronic HCV and these extrahepatic manifestations are frequently excluded from clinical trials of interferon (IFN) therapy due to concerns about efficacy and safety.
Purpose of the Study:
- To review existing data on dermatologic conditions associated with chronic HCV infection.
- To summarize the efficacy of interferon (IFN) therapy on these extrahepatic manifestations in HCV patients.
Main Methods:
- Systematic review of published literature and case reports.
- Analysis of data concerning dermatologic manifestations in chronic HCV patients treated with IFN therapy.
Main Results:
- Limited data exists on the efficacy of IFN therapy for extrahepatic manifestations in chronic HCV patients.
- Case reports indicate a highly variable response of dermatologic conditions to IFN treatment in this patient population.
Conclusions:
- The effectiveness of interferon therapy for treating dermatologic extrahepatic manifestations in chronic hepatitis C virus infection is not well-established.
- Further research is needed to clarify the role and outcomes of IFN therapy in managing these associated skin conditions.
Abstract:
Chronic hepatitis C virus infection (HCV) is associated with extrahepatic manifestations, including such dermatologic conditions as mixed cryoglobulinemia, porphyria cutanea tarda, and lichen planus. Patients with chronic HCV and extrahepatic manifestations are often excluded from clinical trials evaluating interferon (IFN) therapy due to concerns about poor response, adverse events, and toxicity. Thus, data regarding the efficacy of IFN not only on the underlying chronic HCV, but also on extrahepatic manifestations, are limited in these patients. Case reports suggest that the response of dermatologic extrahepatic manifestations to IFN in patients with chronic HCV is highly variable. This review summarizes available data on dermatologic conditions associated with chronic HCV and their response to IFN therapy.
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