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  • Title: Phase II study of oral fludarabine phosphate in relapsed indolent B-Cell non-Hodgkin's lymphoma.
    Author: Tobinai K, Watanabe T, Ogura M, Morishima Y, Ogawa Y, Ishizawa K, Minami H, Utsunomiya A, Taniwaki M, Terauchi T, Nawano S, Matsusako M, Matsuno Y, Nakamura S, Mori S, Ohashi Y, Hayashi M, Seriu T, Hotta T.
    Journal: J Clin Oncol; 2006 Jan 01; 24(1):174-80. PubMed ID: 16330664.
    Abstract:
    PURPOSE: Although intravenous (IV) fludarabine phosphate is effective against indolent B-cell non-Hodgkin's lymphoma (B-NHL), IV administration for 3 to 5 consecutive days is inconvenient in an outpatient setting. To assess the efficacy and toxicity of oral fludarabine phosphate in patients with indolent B-NHL, we conducted a multicenter phase II study. PATIENTS AND METHODS: Patients with relapsed indolent B-NHL received fludarabine phosphate tablets orally once daily on days 1 through 5 every 28 days for three to six cycles. The efficacy was separately analyzed in a mantle-cell lymphoma (MCL) cohort and indolent B-NHL except for MCL (IL) cohort. The primary end point was the overall response rate (ORR). RESULTS: Fifty-two patients, including 46 in the IL cohort (41 with follicular lymphoma) and six in the MCL cohort, were registered, and all patients were eligible. Forty-one patients (79%) had received rituximab as prior therapy. In the IL cohort, the ORR and complete response rate were 65% (30 of 46 patients; 95% CI, 50% to 79%) and 30% (14 of 46 patients; 95% CI, 18% to 46%), respectively. One of six patients with MCL achieved a partial response. The median times to treatment failure for the 46 patients in the IL cohort and for the six patients in the MCL cohort were 8.6 and 6.1 months, respectively. Hematologic toxicities, including grade 4 neutropenia (37%), were the most frequent toxicities, and nonhematologic toxicities were mild. CONCLUSION: Oral fludarabine phosphate is highly effective in patients with relapsed indolent B-NHL who have mostly been pretreated with rituximab and is more convenient than the IV formulation.
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