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Long-term follow-up of antiviral combination therapy in chronic hepatitis B.

For patients with chronic hepatitis B e (HBe)-positive hepatitis, long-term results of pilot studies with lymphoblastoid interferon-alpha, acyclovir, or a combination, and of a randomized controlled trial of interferon/desciclovir combination therapy are presented. HBe seroconversion was observed in more than 40 percent of patients treated with combination therapy, 30 percent with interferon therapy, 18 percent with acyclovir, and 0 percent with no treatment. HBe reactivation occurred in two patients with cirrhosis. Hepatitis B surface seroconversion followed HBe seroconversion in 11 to 30 percent of treated patients. HBe seroconversion was significantly related to initial low levels of viral replication and to transient aminotransferase elevation during the second half of the interferon treatment of 16 weeks. Clinical improvement and persistent normalization of aspartate aminotransferase was observed in all patients with HBe seroconversion. Conversion to a state of virus latency (HBe negative) mostly occurred after therapy, suggesting that the specific immunologic host response had been brought about by the suppression of virus replication through antiviral agents. Recommendations for selection of patients for antiviral combination therapy are made on the basis of these long-term results.