Abstract
Background
Before tenofovir approval for chronic hepatitis B therapy, the clinical management of patients with suboptimal response or virological breakthrough during combination treatment with lamivudine and adefovir dipivoxil was a difficult clinical challenge.
Aims
In order to improve virologic response and reduce the risk of decompensation, we evaluate the efficacy of a high dose of lamivudine on chronic HBV patients who have previously presented an unsatisfactory response during treatment with lamivudine 100mg/day and adefovir 10mg/day.
Methods
Six patients with HBV-related liver cirrhosis were prospectively enrolled. All were HBeAg-negative and presented a suboptimal response or virological breakthrough after "adefovir add-on" because of development of clinical breakthrough during Lamivudine treatment. Lamivudine dose was increased to 200 or 300mg, depending on viral load. After 12 months of follow-up, virological and biochemical response were evaluated.
Results
After 12 months of high-dose lamivudine, all patients (6/6, 100%) achieved a significant decrease of serum HBV DNA (mean reduction 2,62 ± 1,15 Log10 UI/ml, P = 0.03) and normalized ALT. In three patients (3/6, 50%), HBV DNA became undetectable within 6 months. No patient developed liver decompensation and no significant changes occurred in serum creatinine, serum and urinary electrolytes. No adverse events were registered.
Conclusions
In our experience, rescue strategy with high-dose lamivudine inhibited viral replication leading to undetectability of serum HBVDNA. This rescue treatment presented a good safety profile, without adverse events during the study period. Customized increase of nucleos(t)ide analogues dose in difficult-to-treat patients may be a proficient approach in challenging clinical setting.
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Abbreviations
- ADV:
-
Adefovir dipivoxil
- CHB:
-
Chronic HBV hepatitis
- HBeAg:
-
HBV e antigen
- HBV:
-
Hepatitis B virus
- LAM:
-
Lamivudine
- NUC:
-
Nucleot(s)ide
- TDF:
-
Tenofovir disoproxil fumarate
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The authors received no funding for writing this paper, and they declare no conflict of interest.
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An erratum to this article can be found at http://dx.doi.org/10.1007/s10620-012-2091-x.
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Montagnani, M., Giandinoto, M., Lisotti, A. et al. High Dose Lamivudine in HBV-Related Cirrhotic Patients with Unsatisfactory Response After Adefovir Add-On. Dig Dis Sci 57, 561–567 (2012). https://doi.org/10.1007/s10620-011-1873-x
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DOI: https://doi.org/10.1007/s10620-011-1873-x