title: [A double-blind, randomized, lamivudine-controlled clinical trial of DAIDING (adefovir dipivoxil) for lamivudine-resistant patients with chronic hepatitis B].
abstract: OBJECTIVE
  To investigate the efficacy and safety of adefovir dipivoxil (ADV, DAIDING) for Chinese chronic hepatitis B patients with lamivudine (LAM) resistance.
  
  
  METHODS
  This study was a multicenter, double-blind clinical trial. 209 chronic hepatitis B patients with LAM resistance were randomly put in an ADV, DAIDING or a LAM group. After 24 and 48-weeks of treatment, serum HBV DNA levels were measured by quantitative PCR and liver function tests; HBV serology and safety assessments were also conducted.
  
  
  RESULTS
  The mean reduction of HBV DNA from baseline at 24 and 48 weeks was significantly greater in the ADV group compared with that in the LAM group (2.40 log10 vs 0.94 log10, P < 0.01; 2.71 log10 vs 1.07 log10, P < 0.01). In the ADV group, the virological response and ALT normalization at 24 and 48 weeks were significantly higher than those in the LAM group. There was no significant difference between the two groups in the portion of HBeAg reduction, HBeAg seroconversion and incidence of adverse events. There was no severe adverse event related to the investigational product, DAIDING, in this trial.
  
  
  CONCLUSIONS
  DAIDING (ADV) is effective and safe for the treatment of chronic hepatitis B patients with LAM resistance.
authors.affiliation: Department of Infectious Diseases, Southwest Hospital, Third Military Medical University, Chongqing 400038, China. wym417@mail.tmmu.com.cn
authors.forename: Yu-ming
authors.initials: YM
authors.lastname: Wang
authors.forename: Yao-kai
authors.initials: YK
authors.lastname: Chen
authors.forename: Da-zhi
authors.initials: DZ
authors.lastname: Zhang
authors.forename: Bing-jun
authors.initials: BJ
authors.lastname: Lei
authors.forename: Zhi-meng
authors.initials: ZM
authors.lastname: Lu
authors.forename: You-kuan
authors.initials: YK
authors.lastname: Yin
authors.forename: Yun-song
authors.initials: YS
authors.lastname: Yu
mesh_terms: D000225:Adenine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D000293:Adolescent; D000328:Adult; D000368:Aged; D000998:Antiviral Agents / Q000627:therapeutic use*; D004311:Double-Blind Method; D024882:Drug Resistance, Viral; D005260:Female; D019694:Hepatitis B, Chronic / Q000188:drug therapy*; D006801:Humans; D019259:Lamivudine / Q000494:pharmacology; D008297:Male; D008875:Middle Aged; D063065:Organophosphonates / Q000627:therapeutic use*; D055815:Young Adult
chemical_list: D000998:Antiviral Agents; D063065:Organophosphonates; D019259:Lamivudine; D000225:Adenine; C106812:adefovir dipivoxil