Unsuccessful therapy with adefovir and entecavir-tenofovir in a patient with chronic hepatitis B infection with previous resistance to lamivudine: a fourteen-year evolution of hepatitis B virus mutations
2011

Long-term study of hepatitis B virus mutations in a patient resistant to multiple therapies

Sample size: 1 publication Evidence: low

Author Information

Author(s): Cassino Lucila, Benetti Silvina, Fay Fabian, Tanno Hugo, Quarleri Jorge

Primary Institution: Centro Nacional de Referencia para el SIDA, Departamento de MicrobiologĂ­a, Facultad de Medicina, Universidad de Buenos Aires, Argentina

Hypothesis

How does hepatitis B virus genomic evolution occur during antiviral therapy in a patient with previous resistance to lamivudine?

Conclusion

The study found that the patient continued to have high viral loads and resistance mutations despite multiple antiviral therapies over 14 years.

Supporting Evidence

  • The patient had a history of lamivudine resistance.
  • Multiple antiviral therapies were attempted over 14 years.
  • High viral loads persisted despite treatment changes.

Takeaway

This study followed a woman with hepatitis B for 14 years to see how the virus changed when she was treated with different medicines. Even though she tried many treatments, the virus kept coming back.

Methodology

The study involved amplifying and sequencing HBV genes, measuring viral load, and monitoring serological profiles over 14 years.

Limitations

The study is based on a single case, which may limit the generalizability of the findings.

Participant Demographics

A 47-year-old woman diagnosed with chronic active HBeAg-positive hepatitis B.

Digital Object Identifier (DOI)

10.1186/1471-2334-11-178

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