Internal medicine (Tokyo, Japan) · 2009
Late onset neutropenia and immunoglobulin suppression of the patients with malignant lymphoma following autologous stem cell transplantation with rituximab.
Сравнительное исследованиеСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Hirayama Yasuo, Kohda Kyuhei, Konuma Yuichi, Hirata Yasuji, Kuroda Hiroyuki, Fujimi Yuko, Shirao Sayaka, Kobune Masayoshi, Takimoto Rishu, Matsunaga Takuya, Kato Junji
Аннотация
BACKGROUND: Recently, decrease of immunoglobulin concentrations or neutrophil counts were reported in some cases several months after administration of rituximab. We examined a number of episodes of late onset neutropenia or immunoglobulin decrease in patients with malignant lymphoma who were in complete remission following autologous transplantation with or without rituximab.
METHOD: Patients with follicular lymphoma and diffuse large B cell lymphoma transplanted with or without rituximab in our institutes were analyzed. Immunoglobulin concentrations and neutrophil counts after transplantation, both with and without rituximab were measured serially.
RESULTS: Four weeks after transplantation, blood samples revealed lower concentrations of IgG and IgA in the rituximab group than in the non-rituximab group. Neutrophil numbers did not fall below 0.5x10(9) /L four weeks or more after transplantation in the non-rituximab group. Neutrophil numbers dropped below 0.5x10(9) /L in 6 of 14 cases in the rituximab group.
CONCLUSION: Although the present study was retrospective and disease composition and pre-transplantation regimens differed between the two groups, the addition of rituximab to autologous transplantation might bring about a decrease of immunoglobulin levels and transient LON.
METHOD: Patients with follicular lymphoma and diffuse large B cell lymphoma transplanted with or without rituximab in our institutes were analyzed. Immunoglobulin concentrations and neutrophil counts after transplantation, both with and without rituximab were measured serially.
RESULTS: Four weeks after transplantation, blood samples revealed lower concentrations of IgG and IgA in the rituximab group than in the non-rituximab group. Neutrophil numbers did not fall below 0.5x10(9) /L four weeks or more after transplantation in the non-rituximab group. Neutrophil numbers dropped below 0.5x10(9) /L in 6 of 14 cases in the rituximab group.
CONCLUSION: Although the present study was retrospective and disease composition and pre-transplantation regimens differed between the two groups, the addition of rituximab to autologous transplantation might bring about a decrease of immunoglobulin levels and transient LON.