title: Sustained response of hepatitis B e antigen-negative patients 3 years after treatment with peginterferon alpha-2a.
abstract: OBJECTIVE
  Patients with hepatitis B e antigen (HBeAg)-negative chronic hepatitis B treated with peginterferon alpha-2a with or without lamivudine achieve significantly higher 6-month posttreatment rates of response compared with those treated with lamivudine alone. The durability of <or=3-year posttreatment response was investigated in this study.
  
  
  METHODS
  Patients received peginterferon alpha-2a only (180 microg once weekly; n = 177), in combination with lamivudine (100 mg daily; n = 179) or lamivudine alone (n = 181) for 48 weeks. A total of 315 patients (116, 114, and 85, respectively) participated in this posttreatment observational study.
  
  
  RESULTS
  Three years after treatment, the percentage of patients with normal alanine aminotransferase (ATL) was higher for patients treated with peginterferon alpha-2a (31%) than with lamivudine (18%; P = 0.032). Similarly, 28% of patients treated with peginterferon had hepatitis B virus (HBV) DNA levels <or= 10,000 copies/mL versus 15% of patients treated with lamivudine (P = .039). Peginterferon alpha-2a treatment and high baseline ALT level were independent baseline predictors of long-term virologic response (P = .040 and P = .01, respectively). Of the patients who had been treated with a peginterferon alpha-2a-containing regimen, 8.7% cleared hepatitis B surface antigen (HBsAg; 44% of those with undetectable HBV at 3-year posttreatment follow-up) compared with none treated with lamivudine alone.
  
  
  CONCLUSIONS
  Biochemical and virologic responses were sustained for <or=3 years in approximately 25% of patients given a 48-week course of peginterferon alpha-2a, with or without lamivudine. The increased rate of HBsAg clearance in patients with HBeAg-negative chronic hepatitis B supports the use of peginterferon alpha-2a as a first-line treatment.
authors.affiliation: Service d'Hépatologie, U773-CRB3, Hôpital Beaujon, University of Paris, Clichy, France. patrick.marcellin@bjn.ap-hop-paris.fr
authors.forename: Patrick
authors.initials: P
authors.lastname: Marcellin
authors.forename: Ferruccio
authors.initials: F
authors.lastname: Bonino
authors.forename: George K K
authors.initials: GK
authors.lastname: Lau
authors.forename: Patrizia
authors.initials: P
authors.lastname: Farci
authors.forename: Cihan
authors.initials: C
authors.lastname: Yurdaydin
authors.forename: Teerha
authors.initials: T
authors.lastname: Piratvisuth
authors.forename: Rui
authors.initials: R
authors.lastname: Jin
authors.forename: Selim
authors.initials: S
authors.lastname: Gurel
authors.forename: Zhi-Meng
authors.initials: ZM
authors.lastname: Lu
authors.forename: Jian
authors.initials: J
authors.lastname: Wu
authors.forename: Matei
authors.initials: M
authors.lastname: Popescu
authors.forename: Stephanos
authors.initials: S
authors.lastname: Hadziyannis
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D004305:Dose-Response Relationship, Drug; D004334:Drug Administration Schedule; D004359:Drug Therapy, Combination; D004502:Education, Medical, Continuing; D005260:Female; D005500:Follow-Up Studies; D006513:Hepatitis B e Antigens / Q000276:immunology; D006515:Hepatitis B virus / Q000187:drug effects*; D019694:Hepatitis B, Chronic / Q000175:diagnosis / Q000188:drug therapy*; D006801:Humans; D000077190:Interferon alpha-2; D016898:Interferon-alpha / Q000008:administration & dosage*; D019259:Lamivudine / Q000008:administration & dosage*; D008111:Liver Function Tests; D016015:Logistic Models; D008297:Male; D015999:Multivariate Analysis; D011092:Polyethylene Glycols / Q000008:administration & dosage*; D011237:Predictive Value of Tests; D011336:Probability; D011994:Recombinant Proteins; D018570:Risk Assessment; D012720:Severity of Illness Index; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D006513:Hepatitis B e Antigens; D000077190:Interferon alpha-2; D016898:Interferon-alpha; D011994:Recombinant Proteins; D019259:Lamivudine; D011092:Polyethylene Glycols; C100416:peginterferon alfa-2a