title: Combination of Lamivudine and adefovir therapy in HBeAg-positive chronic hepatitis B patients with poor response to adefovir monotherapy.
abstract: At present, there is no consensus treatment for patients who have poor response to Adevofir dipivoxil (ADV) monotherapy and no ADV-associated mutation. The purpose of this study was to evaluate the effect of a new therapeutic strategy combining Lamivudine (LAM) and ADV in patients with HBeAg-positive chronic hepatitis B (CHB) and poor response to ADV monotherapy. Thirty-one patients with chronic hepatitis B with HBV DNA > or = 10(4) copies/mL after 48 weeks of ADV monotherapy were included and received ADV plus LAM for 24 weeks. Compared with ADV monotherapy, ADV + LAM had an improved response rate at weeks 12 and 24 - compared with baseline, the median decrease in HBV-DNA level at week 12 and 24 were 1.27 and 2.03 log respectively. The virological response (VR) rate (HBV-DNA level <10(3) copies/mL) was 6.5% and 35.5% at weeks 12 and 24, respectively; the biochemical response (BR) rate (normalization of alanine aminotransferase levels) was 67.8% and 100%, respectively; the HBeAg loss rate was 6.9% and 34.5%, respectively; and the seroconversion rate (from HBeAg to HBeAb) was 3.5% and 6.9% respectively. No ADV-associated mutation was detected at baseline. After combination therapy for 24 weeks, no LAM-resistant or ADV-resistant mutations were detected. Only one patient had a mild adverse reaction. In conclusion, optimization of therapy combining LAM and ADV may be a good choice for patients with hepatitis B who have a poor response to ADV monotherapy.
authors: Center of Infectious Diseases, Division of Molecular Biology of Infectious Diseases, State Key Laboratory of Biotherapy (Sichuan University), West China Hospital, Sichuan University, Chengdu, Sichuan, China.
authors: L-C
authors: LC
authors: Wang
authors: E-Q
authors: EQ
authors: Chen
authors: J
authors: J
authors: Cao
authors: L
authors: L
authors: Liu
authors: J-R
authors: JR
authors: Wang
authors: B-J
authors: BJ
authors: Lei
authors: H
authors: H
authors: Tang
mesh_terms: D000225:Adenine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D000293:Adolescent; D000328:Adult; D000998:Antiviral Agents / Q000627:therapeutic use*; D004279:DNA, Viral / Q000097:blood; D004359:Drug Therapy, Combination; D064420:Drug-Related Side Effects and Adverse Reactions; D004798:Enzymes / Q000097:blood; D005260:Female; D006513:Hepatitis B e Antigens / Q000097:blood*; D019694:Hepatitis B, Chronic / Q000188:drug therapy*; D006801:Humans; D019259:Lamivudine / Q000627:therapeutic use*; D008111:Liver Function Tests; D008297:Male; D063065:Organophosphonates / Q000627:therapeutic use*; D016896:Treatment Outcome; D019562:Viral Load; D055815:Young Adult
chemical_list: D000998:Antiviral Agents; D004279:DNA, Viral; D004798:Enzymes; D006513:Hepatitis B e Antigens; D063065:Organophosphonates; D019259:Lamivudine; C053001:adefovir; D000225:Adenine