Therapeutic vaccination of chronic hepatitis B patients with virus suppression by antiviral therapy: a randomized, controlled study of co-administration of HBsAg/AS02 candidate vaccine and lamivudine

Vandepapelière, Pierre;Lau, George K. K.;Leroux-Roels, Geert;Horsmans, Yves;Ferrari, Carlo;et.al.
(2007) Vaccine — Vol. 25, n° 51, p. 8585-8597 (2007)

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Authors
  • Vandepapelière, Pierre
    Author
  • Lau, George K. K.
    Author
  • Leroux-Roels, Geert
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  • Horsmans, YvesUCLouvain
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  • Ferrari, Carlo
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Abstract
Induction of curative immune responses by therapeutic vaccination in chronic viral infections such as chronic hepatitis B (CHB) is expected to be facilitated by reduction of viral load by antiviral treatment. In this open label, controlled, randomized study, 195 patients with HBeAg positive CHB were randomized to receive 12 doses of HBsAg with AS02B adjuvant candidate vaccine plus lamivudine daily for 52 weeks or lamivudine daily alone. The combined administration of vaccine and lamivudine was safe and well tolerated, but did not improve the HBe seroconversion rate (18.8%) when compared to treatment with lamivudine alone (16.1%) (p=0.6824). Despite induction of a vigorous HBsAg-specific lymphoproliferative response, cytokine production and anti-HBs antibodies, therapeutic vaccination with an adjuvanted HBsAg vaccine administered concomitantly with lamivudine did not demonstrate superior clinical efficacy in HBeAg positive CHB patients as compared to lamivudine therapy alone.
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Vandepapelière, P., Lau, G. K. K., Leroux-Roels, G., Horsmans, Y., Gane, E., Tawandee, T., Merican, M. I. b., Win, K. M., Trepo, C., Cooksley, G., Wettendorff, M., & Ferrari, C. (2007). Therapeutic vaccination of chronic hepatitis B patients with virus suppression by antiviral therapy: a randomized, controlled study of co-administration of HBsAg/AS02 candidate vaccine and lamivudine. Vaccine, 25(51), 8585-8597. https://doi.org/10.1016/j.vaccine.2007.09.072 (Original work published 2007)