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  • Title: Post-transplant lymphoproliferative disorders after lung transplantation: first-line treatment with rituximab may induce complete remission.
    Author: Knoop C, Kentos A, Remmelink M, Garbar C, Goldman S, Feremans W, Estenne M.
    Journal: Clin Transplant; 2006; 20(2):179-87. PubMed ID: 16640524.
    Abstract:
    BACKGROUND: Post-transplant lymphoproliferative disorders (PTLD) are potentially lethal complications of solid organ transplantation. We, here, report on our experience with rituximab, an anti-CD20 monoclonal antibody, as first-line treatment for PTLD in six lung transplant recipients. PATIENTS AND METHODS: Two of the patients developed PTLD during the first year after transplantation, while four developed late-onset PTLD. One patient presented with PTLD localized to the graft, one had unilateral cervical lymph nodes, and the others presented with multi-organ involvement. All patients had diffuse large B-cell lymphoma. Immunosuppressive therapy was reduced and rituximab was administered at a dose of 375 mg/m(2)/wk for 4 wk. RESULTS: One patient did not respond to the first two courses of rituximab, received conventional chemotherapy, and achieved complete remission; four patients achieved complete remission after four courses with a median relapse-free survival of 34 months (range: 14-55); and one patient did not respond and died. The diagnosis of complete remission was established by conventional imaging techniques combined to whole-body positron emission tomography scan. CONCLUSIONS: We conclude that reduction in immunosuppression combined to first-line treatment with rituximab may induce long-term complete remission in lung transplant recipients presenting PTLD.
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