Activity of Rituximab plus Cyclophosphamide, Doxorubicin/Mitoxantrone, Vincristine and Prednisone in Patients with Relapsed MALT LymphomaRaderer M.a · Wöhrer S.a · Streubel B.c · Drach J.a · Jäger U.a · Turetschek K.d · Troch M.a · Püspök A.b · Zielinski C.C.a · Chott A.c
Departments of aInternal Medicine I and bInternal Medicine IV, cPathology and dRadiology, University of Vienna, Vienna, Austria
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Background: Various chemotherapeutic agents as well as the anti-CD20 antibody rituximab (R) have been tested in patients with mucosa-associated lymphoid tissue (MALT) lymphoma, but no standard chemotherapeutic regimen has emerged so far. Judging from the data obtained in various types of lymphoma, the activity of R appears to be enhanced by combination with chemotherapy. As no data on this topic exist for MALT lymphoma, we have retrospectively analysed our experience with R plus cyclophosphamide, doxorubicin/mitoxantrone, vincristine and prednisone (R-CHOP/R-CNOP) in patients with relapsed MALT lymphoma. Patients and Methods: A total of 26 patients were identified, 15 were administered R-CHOP while 11 patients were given R-CNOP due to age >65 years or pre-existing cardiac conditions. Cycles were repeated every 21 days, and restaging was performed after 4 cycles of therapy. In case of complete remission, 2 further cycles were administered for consolidation while patients achieving partial remission or stable disease after restaging were given 4 further courses. Results: A total of 170 cycles were administered to our patients (median 6, range 2–8). Twenty of the 26 patients (77%) achieved a complete remission and 6 (23%) a partial remission. Toxicities were mainly haematological, with WHO grade III/IV leukocytopenia occurring in 5 patients. After a median follow-up of 19 months (range 10–45), all patients are alive: 22 are in ongoing remission, while 4 have relapsed between 12 and 19 months after treatment. Conclusions: Our data demonstrate a high activity of R-CHOP/R-CNOP in relapsing MALT lymphoma irrespective of prior therapy.
© 2006 S. Karger AG, Basel
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