Baseline hepatitis B surface antigen (HBsAg) as predictor of sustained HBsAg loss in chronic hepatitis B patients treated with pegylated interferon-α2a and adefovir.
This study aims to investigate the antiviral effect of polyethylene glycol (PEG)-interferon α-2a and PEG-interferon α-2b treatment on hepatitis B e antigen (HBeAg)-positive chronic hepatitis B (CHB) at the 48th week of treatment and the 24th and 48th week after withdrawal, in order to provide guidance on the antiviral treatment of HBeAg-positive CHB patients.
Herein, we report the results obtained by the addition of peg-interferon α-2a to a long-lasting nucleos(t)ide analogue therapy in a HBeAg negative, genotype D patient with steadily HBV-DNA negative/HBsAg positive values.
Recombinant interferon-alpha 2a (IFN-alpha 2a) in a total dose of 702 MU was given to 31 patients: nine with wild-type hepatitis B virus (HBV) and hepatitis B e antigen (HBeAg) (A); four with HBeAg and a mixed infection with wild-type HB and precore mutants (B); 11 with antibody to HBeAg (HBeAb) and a mixed infection (C); and seven with HBeAb and precore mutants alone (D).
Durable hepatitis B surface antigen decline in hepatitis B e antigen-positive chronic hepatitis B patients treated with pegylated interferon-α2b: relation to response and HBV genotype.
Kinetics of Hepatitis B Surface Antigen Level in Chronic Hepatitis B Patients who Achieved Hepatitis B Surface Antigen Loss during Pegylated Interferon Alpha-2a Treatment.
The promoter of the IFN-alpha-2 gene was investigated for mutations in 344 hepatitis B virus (HBV)-infected Vietnamese patients and 293 uninfected Vietnamese.
Twenty-nine hepatitis B surface antigen carriers with normal liver enzymes and with serum hepatitis B virus DNA were randomized into two groups: Group I, 14 patients treated with 9 megaunits of interferon alpha-2a thrice weekly for six months, and Group II, 15 control patients.
Recombinant human interferon alpha 2a as well as natural human interferons alpha and beta significantly suppressed the production of hepatitis B surface antigen by PLC/PRF/5 cells (which have been established from a human primary hepatocellular carcinoma and proven to carry the hepatitis B virus DNA) and inhibited proliferation of these cells in vitro.
The promoter of the IFN-alpha-2 gene was investigated for mutations in 344 hepatitis B virus (HBV)-infected Vietnamese patients and 293 uninfected Vietnamese.
The reduction in HBV DNA levels by TRK-560 treatment was significantly higher than that by PEG-IFN-α2a treatment both <i>in vitro</i> and <i>in vivo</i> (<i>P</i> = 0.004 and <i>P</i> = 0.046, respectively), and intracellular HBV covalently closed circular DNA (cccDNA) reduction by TRK-560 treatment was also significantly higher than that by PEG-IFN-α2a treatment <i>in vivo</i> (<i>P</i> = 0.0495). cDNA microarrays and ELISA for CXCL10 production revealed significant differences between TRK-560 and PEG-IFN-α2a in the induction potency of interferon-stimulated genes.
All patients had hepatitis B virus DNA and increased levels of aminotransferases in serum for at least 1 yr. Twelve children received 10 MU of interferon-alpha 2b/m2 body surface area three times a week (group I); 12 children received 5 MU/m2 under the same conditions (group II); and 12 children served as controls (group III).
When the combination of large dosage interferon-alpha 2b and lamivudine therapy in children was compared at the end of therapy and 6 months after therapy, normalization of alanine aminotransferase and the clearances of hepatitis B e antigen and hepatitis B surface antigen in both groups were directly proportional to the duration of treatment.
Higher efficacy of pegylated interferon-α2b add-on therapy in hepatitis B envelope antigen-positive chronic hepatitis B patients on tenofovir monotherapy.
48 weeks pegylated interferon alpha-2a is superior to 24 weeks of pegylated interferon alpha-2b in achieving hepatitis B e antigen seroconversion in chronic hepatitis B infection.
Recurrence-free long-term survival after liver transplantation for hepatitis B using interferon-alpha pretransplant and hepatitis B immune globulin posttransplant.
It may be concluded that the ability of the peg IFN-α-2a to clear and suppress cccDNA and HBV DNA was superior compared with that of conventional IFN-α-2a.