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Thursday 01 December 2005

Outcome for young high-risk aggressive B-cell lymphoma patients treated with CHOEP-14 and rituximab (R-CHOEP-14).

By: Adde M, Enblad G, Hagberg H, Sundstrom C, Laurell A.

Med Oncol 2006;23(2):283-93

PURPOSE: To study the effectiveness and tolerability of a dose-intensified treatment including rituximab for patients, not older than 65 yr, with high-risk aggressive B-cell lymphoma. PATIENTS: Thirty-eight patients with high-risk aggressive B-cell lymphoma, the majority classified as grade 2 or 3 using age-adjusted International Prognostic Index, were treated with six courses of CHOEP + rituximab on a 2-wk schedule with G-CSF d 4-11. CNS prophylaxis was administered using intravenous Ara-C as a single dose at the end of treatment. RESULTS: All patients were considered responders after three courses. Thirty-one patients (82%) achieved a complete remission or a complete remission unverified. With a median follow up of 27 mo, overall and event-free survival are 79% and 60%, respectively. Treatment was given on an outpatient basis. There were no treatment- related unexpected toxic events or mortalities. Large-cell lymphoma involvement of the bone marrow was a poor prognostic sign even with this intensified treatment and 4/6 patients relapsed. CNS relapse occurred in three patients, two of whom had large cell bone marrow involvement. CONCLUSION: Although only a short follow up, the R-CHOEP-14 regimen is promising and could be an improvement compared to conventional treatment, with acceptable toxicity. The value of intravenous Ara-C at the end of treatment can be questioned, as it did not prevent CNS relapse or affect treatment outcome.

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