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The use of interferon-alpha in virus infections
N B Finter1, S Chapman, P Dowd
1Wellcome Research Laboratories, Beckenham, Kent, England.
Drugs
|November 1, 1991
Summary
Interferon-alpha (IFN alpha) shows promise for chronic infections like hepatitis and warts, though side effects and antibody formation can occur. Further research is needed to optimize treatment regimens for sustained patient benefit.
Area of Science:
- Immunology
- Virology
- Pharmacology
Background:
- Interferons (IFN) are too slow for acute viral infections but show potential for chronic conditions.
- Interferon-alpha (IFN alpha) preparations, derived from human cells or recombinant DNA, are used clinically.
- Different subtypes and versions of IFN alpha exist, including IFN alpha-2.
Purpose of the Study:
- To review the clinical applications and limitations of interferon-alpha (IFN alpha) in treating various chronic infections.
- To discuss the efficacy, side effects, and emerging therapeutic strategies involving IFN alpha.
Main Methods:
- Review of existing clinical data and studies on IFN alpha treatment.
- Analysis of IFN alpha preparations, administration routes, and patient responses.
- Examination of synergistic effects with other treatments like zidovudine.
Main Results:
- IFN alpha is effective for papillomavirus warts, chronic hepatitis B (25-40% benefit), and Kaposi's sarcoma in AIDS patients.
- Intranasal IFN alpha can prevent rhinovirus infection but long-term use damages nasal mucosa.
- Combination therapy with zidovudine shows synergistic inhibition of HIV in vitro.
Conclusions:
- IFN alpha is a valuable therapeutic agent for specific chronic viral infections and certain cancers.
- Optimizing treatment regimens, managing side effects, and addressing antibody formation are crucial for IFN alpha therapy.
- Extended treatment durations may be necessary for sustained cure in conditions like chronic hepatitis C.
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