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Tsutsumi, Y. et al.

Tsutsumi, Tanaka, Kawamura, Miura, Kanamori, Obara, Asaka, Imamura, Masauzi,

Possible efficacy of lamivudine treatment to prevent hepatitis B virus reactivation due to rituximab therapy in a patient with non-Hodgkin's lymphoma.

We used regimens containing rituximab in the treatment of five hepatitis B virus surface antibody (HBsAb)-positive patients with non-Hodgkin's lymphoma (NHL). Serum levels of HBsAb were obtained and analyzed in four of these patients. Two patients were HBs antigen (HBsAg) positive. One of these HBsAg-positive patients was treated with lamivudine because the patient developed fulminant hepatitis from hepatitis B virus (HBV) infection prior to chemotherapy. However, none of the other patients were administered lamivudine. An HBsAg-positive patient who did not receive lamivudine treatment later developed fulminant hepatitis. Another HBsAg-positive patient receiving lamivudine prophylaxis did not develop severe hepatitis arising from HBV. In the three patients not receiving lamivudine treatment, serum HBsAb titers decreased soon after the administration of rituximab. These results suggest that rituximab reduced the antibody titer for HBV, thus inducing an immunological environment leading to easy reactivation of HBV. Lamivudine prophylaxis was effective, at least when rituximab was given to an HBsAg-positive patient with non-Hodgkin's lymphoma.[1]

References

Possible efficacy of lamivudine treatment to prevent hepatitis B virus reactivation due to rituximab therapy in a patient with non-Hodgkin's lymphoma. Tsutsumi, Y., Tanaka, J., Kawamura, T., Miura, T., Kanamori, H., Obara, S., Asaka, M., Imamura, M., Masauzi, N. Ann. Hematol. (2004) [Pubmed]

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