David K. H. Wong; Angela M. Cheung; Keith O'Rourke; C. David Naylor; Allan S. Detsky; Jenny Heathcote
To determine whether -interferon is effective in terminating viral replication and in eradicating the carrier state in patients with chronic hepatitis B virus (HBV) infection.
Randomized controlled studies published in the English literature between January 1966 and June 1992 were identified through a MEDLINE computer search.
Fifteen randomized, controlled studies with a total of 837 adult chronic HBV carriers who were positive for hepatitis B surface antigen (HBsAg) and hepatitis B e antigen (HBeAg) were identified. Studies were included if patients were treated for at least 3 months and followed for at least 6 months after cessation of therapy.
Overall, the loss of HBsAg occurred 6% more often in interferon-treated patients than the natural seroconversion seen in controls (7.8% compared with 1.8%, P = 0.001), and the loss of viral replication occurred approximately 20% more often in treated patients than in controls (33% compared with 12% for loss of HBeAg and 37% compared with 17% for the loss of HBV DNA, P = 0.0001) if patients received interferon for 3 to 6 months and were followed for 6 to 12 months. Interferon also had a significant treatment effect on the development of antibodies to HBsAg (anti-HBs), antibodies to HBeAg (anti-HBe), and on the normalization of alanine aminotransferase levels.
Alpha-interferon is effective in terminating viral replication and in eradicating the carrier state in patients with chronic HBV infection who are HBeAg positive when these patients are treated for 3 to 6 months and followed for 6 to 12 months after cessation of therapy. Follow-up studies are required to determine whether interferon reduces the risk for developing cirrhosis or hepatocellular carcinoma.
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Wong DKH, Cheung AM, O'Rourke K, Naylor CD, Detsky AS, Heathcote J. Effect of Alpha-Interferon Treatment in Patients with Hepatitis B e Antigen-Positive Chronic Hepatitis B: A Meta-Analysis. Ann Intern Med. 1993;119:312–323. doi: 10.7326/0003-4819-119-4-199308150-00011
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Published: Ann Intern Med. 1993;119(4):312-323.
Gastroenterology/Hepatology, Infectious Disease, Liver Disease.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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