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Increased risk of adefovir resistance in patients with lamivudine-resistant chronic hepatitis B after 48 weeks of adefovir dipivoxil monotherapy
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Yoon-Seon | - |
dc.contributor.author | Suh, Dong Jin | - |
dc.contributor.author | Lim, Young-Suk | - |
dc.contributor.author | Jung, Suk Won | - |
dc.contributor.author | Kim, Kang Mo | - |
dc.contributor.author | Lee, Han Chu | - |
dc.contributor.author | Chung, Young-Hwa | - |
dc.contributor.author | Lee, Yung Sang | - |
dc.contributor.author | Yoo, Wangdon | - |
dc.contributor.author | Kim, Soo-Ok | - |
dc.date.accessioned | 2010-01-29T07:56:07Z | - |
dc.date.available | 2010-01-29T07:56:07Z | - |
dc.date.issued | 2006-05-27 | - |
dc.identifier.citation | Hepatology. 2006 Jun;43(6):1385-91. | en |
dc.identifier.issn | 0270-9139 (Print) | - |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16729316 | - |
dc.identifier.uri | http://dx.dor.org/10.1002/hep.21189 | - |
dc.identifier.uri | https://hdl.handle.net/10371/47063 | - |
dc.description.abstract | Although adefovir dipivoxil (ADV) has a unique profile of delayed and infrequent resistance in treatment-naive chronic hepatitis B patients, the association of ADV resistance with previous lamivudine (LAM) resistance is not well understood. We compared the emergence of the ADV-resistant mutations rtA181V/T and rtN236T between LAM-resistant patients and treatment-naive patients at 48 weeks of ADV monotherapy. Fifty-seven LAM-resistant patients and 38 treatment-naive patients were treated with 10 mg/d ADV for more than 48 weeks. Both baseline and 48-week blood samples were analyzed for ADV-resistant mutations via restriction fragment mass polymorphism analysis. Antiviral responses were evaluated according to changes in serum HBV DNA (measured via real-time polymerase chain reaction) and alanine aminotransferase (ALT) levels and loss of hepatitis B e antigen (HBeAg). After 48 weeks, 10 (18%) of the 57 LAM-resistant patients were found to have developed ADV-resistant mutations, whereas none of the 38 treatment-naive patients developed such mutations (P < .01). Among LAM-resistant patients, the reduction in serum HBV DNA levels was significantly lower in patients with ADV-resistant mutations than in those without such mutations (-1.04 vs. -2.63 log10 copies/mL) (P = .01). However, the rates of serum ALT normalization (60% vs. 55%) and HBeAg loss (14% vs. 21%) were not significantly different between the 2 groups (P > .05). In conclusion, the emergence of the rtA181V/T and rtN236T mutations was more common in LAM-resistant patients than in treatment-naive patients after 48 weeks of ADV therapy and was associated with reduced antiviral efficacy to drug treatment. | en |
dc.language.iso | en | - |
dc.publisher | Wiley-Blackwell | en |
dc.subject | Adenine/administration & dosage/*analogs & derivatives | en |
dc.subject | Adult | en |
dc.subject | Aged | en |
dc.subject | Antiviral Agents/*administration & dosage | en |
dc.subject | Base Sequence | en |
dc.subject | Case-Control Studies | en |
dc.subject | DNA, Viral/analysis | en |
dc.subject | Dose-Response Relationship, Drug | en |
dc.subject | Drug Administration Schedule | en |
dc.subject | Drug Resistance, Multiple/*genetics | en |
dc.subject | Female | en |
dc.subject | Hepatitis B, Chronic/*drug therapy/genetics | en |
dc.subject | Humans | en |
dc.subject | Lamivudine/*administration & dosage | en |
dc.subject | Male | en |
dc.subject | Middle Aged | en |
dc.subject | Molecular Sequence Data | en |
dc.subject | Mutation | en |
dc.subject | Pharmacogenetics | en |
dc.subject | Phosphonic Acids/*administration & dosage | en |
dc.subject | Probability | en |
dc.subject | Reverse Transcriptase Polymerase Chain Reaction | en |
dc.subject | Risk Assessment | en |
dc.subject | Severity of Illness Index | en |
dc.subject | Statistics, Nonparametric | en |
dc.subject | Treatment Outcome | en |
dc.subject | Viral Load | en |
dc.title | Increased risk of adefovir resistance in patients with lamivudine-resistant chronic hepatitis B after 48 weeks of adefovir dipivoxil monotherapy | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 이윤선 | - |
dc.contributor.AlternativeAuthor | 서동진 | - |
dc.contributor.AlternativeAuthor | 임영석 | - |
dc.contributor.AlternativeAuthor | 정석원 | - |
dc.contributor.AlternativeAuthor | 김강모 | - |
dc.contributor.AlternativeAuthor | 이한주 | - |
dc.contributor.AlternativeAuthor | 정영화 | - |
dc.contributor.AlternativeAuthor | 이영상 | - |
dc.contributor.AlternativeAuthor | 유왕돈 | - |
dc.contributor.AlternativeAuthor | 김수옥 | - |
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