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Prevalence and Clinical Correlates of YMDD Variants during Lamivudine Therapy for Patients with Chronic Hepatitis B

Open access
Lai, Ching‐Lung, Dienstag, Jules, Schiff, Eugene, Leung, Nancy W. Y., Atkins, Mark, Hunt, Christine, Brown, Nathaniel, Woessner, Mary, Boehme, Richard, Condreay, Lynn·2003·Clinical Infectious Diseases

Abstract

YMDD variants of hepatitis B virus (HBV) emerge in some patients with chronic hepatitis B who receive lamivudine. YMDD variants were examined in 794 patients in 4 controlled studies of 1 year's duration. The long-term effects of YMDD variants were examined in a subset of patients treated up to 4 years. YMDD variants were detected by polymerase chain reaction (PCR) and restriction fragment-length polymorphism assays. After 1 year, YMDD variants were detected in 81 (24%) of 335 patients. In these patients, the median serum HBV DNA concentration at 1 year was <20% of the baseline level, and serum alanine transaminase (ALT) levels and liver histologic findings had significantly improved. In patients with YMDD variants who were treated for up to 4 years, median HBV DNA and ALT levels showed improvements. Sex, baseline body mass index, and HBV DNA level were associated with emergence of YMDD variants. Patients with YMDD variants losing clinical response with a significant increase in the HBV DNA and ALT levels may require additional therapy.

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Metadata

Authors
Lai, C., Dienstag, J., Schiff, E., Leung, N. W. Y., Atkins, M., Hunt, C., Brown, N., Woessner, M., Boehme, R., & Condreay, L.
Venue
Clinical Infectious Diseases
Published
2003-03-15
Volume
36
Issue
6
Pages
687-696
ISSN
  • 1058-4838 (ISSN-L)
  • 1537-6591
OpenAlex
W2014837723
Cited by
634
References
0
FWCI
34.53
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Prevalence and Clinical Correlates of YMDD Variants during Lamivudine Therapy for Patients with Chronic Hepatitis B. https://app.cochat.ai/papers/10.1086/368083
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Lai, C., Dienstag, J., Schiff, E., Leung, N. W. Y., Atkins, M., Hunt, C., Brown, N., Woessner, M., Boehme, R., & Condreay, L. (2003). Prevalence and Clinical Correlates of YMDD Variants during Lamivudine Therapy for Patients with Chronic Hepatitis B. Clinical Infectious Diseases. https://doi.org/10.1086/368083

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