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Outcome of adefovir add-on lamivudine rescue therapy of up to 5 years in patients with lamivudine-resistant chronic hepatitis B

Authors
 Sung Bae Kim  ;  Seung Up Kim  ;  Beom Kyung Kim  ;  Jun Yong Park  ;  Do Young Kim  ;  Sang Hoon Ahn  ;  Kwang-Hyub Han 
Citation
 Journal of Gastroenterology and Hepatology, Vol.31(1) : 241-247, 2016 
Journal Title
 Journal of Gastroenterology and Hepatology 
ISSN
 0815-9319 
Issue Date
2016
MeSH
Adenine/administration & dosage ; Adenine/analogs & derivatives* ; Alanine Transaminase/blood ; Antiviral Agents/administration & dosage* ; Biomarkers/blood ; DNA, Viral/blood ; Drug Resistance, Viral ; Drug Therapy, Combination ; Female ; Hepatitis B e Antigens/blood ; Hepatitis B virus/genetics ; Hepatitis B, Chronic/diagnosis ; Hepatitis B, Chronic/drug therapy* ; Humans ; Lamivudine/administration & dosage* ; Male ; Middle Aged ; Multivariate Analysis ; Organophosphonates/administration & dosage* ; ROC Curve ; Time Factors ; Treatment Outcome
Keywords
adefovir ; chronic hepatitis B ; combination therapy ; complete virological response ; lamivudine resistance
Abstract
BACKGROUND AND AIM: We investigated the long-term efficacy of adefovir add-on lamivudine rescue therapy in lamivudine-resistant chronic hepatitis B and the optimal cutoff hepatitis B virus (HBV) DNA level that predicts complete virological response (CVR) among patients without CVR after 1 year of treatment. METHODS: We reviewed 167 lamivudine-resistant chronic hepatitis B patients who received adefovir add-on rescue therapy for up to 5 years. Multivariate analysis, area under the receiver operating characteristic curves, and Youden index were used. RESULTS: Median age was 47.0 years; 112 patients were male. Median baseline HBV DNA level was 6.6 log10 IU/mL; hepatitis B e antigen was positive in 130 (77.4%) patients. Five-year CVR, alanine aminotransferase normalization, hepatitis B e antigen seroconversion, and adefovir resistance rates were 86.9%, 92.5%, 16.7%, and 6.0%, respectively. One-year HBV DNA level independently associated with CVR. Optimal cutoff HBV DNA level to predict CVR among patients who failed to achieve CVR at 1 year was 800 IU/mL (area under receiver operating characteristic curve 0.752; sensitivity 49.3%, specificity 93.5%). During the 5-year treatment, 92.1% of patients with favorable response (HBV DNA < 800 IU/mL at 1 year) achieved CVR; 45.6% achieved CVR among suboptimal responders (HBV DNA ≥ 800 IU/mL at 1 year) (P < 0.001). CONCLUSION: Complete virological response or HBV DNA level < 800 IU/mL after 1 year adefovir add-on lamivudine rescue therapy can favorably predict CVR.
Full Text
http://onlinelibrary.wiley.com/doi/10.1111/jgh.13046/abstract
DOI
10.1111/jgh.13046
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Do Young(김도영)
Kim, Beom Kyung(김범경) ORCID logo https://orcid.org/0000-0002-5363-2496
Kim, Sung Bae(김성배)
Kim, Seung Up(김승업) ORCID logo https://orcid.org/0000-0002-9658-8050
Park, Jun Yong(박준용) ORCID logo https://orcid.org/0000-0001-6324-2224
Ahn, Sang Hoon(안상훈) ORCID logo https://orcid.org/0000-0002-3629-4624
Han, Kwang-Hyub(한광협) ORCID logo https://orcid.org/0000-0003-3960-6539
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/146424
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