Immunochemotherapy for primary central nervous system lymphoma with rituximab, methotrexate, cytarabine and dexamethasone: Retrospective analysis of 18 cases

  • Authors:
    • Jing Liu
    • Xue‑Fei Sun
    • Jun Qian
    • Xue‑Yan Bai
    • Hong Zhu
    • Qu Cui
    • Xiao‑Yan Li
    • Yue‑Dan Chen
    • Ya‑Ming Wang
    • Yuan‑Bo Liu
  • View Affiliations

  • Published online on: May 12, 2015     https://doi.org/10.3892/mco.2015.566
  • Pages: 949-953
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Abstract

The incidence of primary central nervous system lymphoma (PCNSL) has increased in the last two decades and the clinical research regarding the treatment for PCNSL patients has also increased. However, the optimal induction chemotherapy has not been fully established. In the present retrospective study, the aim was to analyze the outcome in PCNSL patients treated with the combination of rituximab, methotrexate (MTX), cytarabine (Ara‑C) and dexamethasone (R‑MAD). Eighteen patients from Beijing Tiantan Hospital (Beijing, China) between January 2010 and March 2014 were newly diagnosed with PCNSL [diffuse large B‑cell lymphoma (DLBCL) type] and received R‑MAD as first‑line treatment. The dosage was as follows: 375 mg/m2 rituximab was administered on day 0, 3.5 g/m2 MTX was administered on day 1, 1 g/m2 Ara‑C was administered on day 2 and 10 mg dexamethasone was administered on days 1‑3, every 3 weeks. After 6 cycles, the overall response rate was 94.5%. Ten (55.6%) patients achieved complete response (CR), 7 (38.9%) achieved partial response (PR) and 1 (5.6%) had progressive disease (PD). Patients were followed up from the start of the treatment, median 24.2 months (range 6‑48). The overall survival (OS) rate was 94.5% and progression‑free survival rate was 94.5%. The median OS was 22 months (95% confidence interval, 19.4‑24.6). The high level of serum lactate dehydrogenase (LDH) concentration was associated with a poor outcome. Among 5 patients with an abnormally high LDH concentration, 1 achieved CR, 3 had PR and 1 had PD. None of the patients experienced any grade 4 toxicity. These results indicated that the R‑MAD immunochemotherapy regimen is effective in PCNSL patients without serious toxicity. A prospective investigation with more patients should be administered in order to understand the more accurate effect of the regimen.
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July-2015
Volume 3 Issue 4

Print ISSN: 2049-9450
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Spandidos Publications style
Liu J, Sun XF, Qian J, Bai XY, Zhu H, Cui Q, Li XY, Chen YD, Wang YM, Liu YB, Liu YB, et al: Immunochemotherapy for primary central nervous system lymphoma with rituximab, methotrexate, cytarabine and dexamethasone: Retrospective analysis of 18 cases. Mol Clin Oncol 3: 949-953, 2015
APA
Liu, J., Sun, X., Qian, J., Bai, X., Zhu, H., Cui, Q. ... Liu, Y. (2015). Immunochemotherapy for primary central nervous system lymphoma with rituximab, methotrexate, cytarabine and dexamethasone: Retrospective analysis of 18 cases. Molecular and Clinical Oncology, 3, 949-953. https://doi.org/10.3892/mco.2015.566
MLA
Liu, J., Sun, X., Qian, J., Bai, X., Zhu, H., Cui, Q., Li, X., Chen, Y., Wang, Y., Liu, Y."Immunochemotherapy for primary central nervous system lymphoma with rituximab, methotrexate, cytarabine and dexamethasone: Retrospective analysis of 18 cases". Molecular and Clinical Oncology 3.4 (2015): 949-953.
Chicago
Liu, J., Sun, X., Qian, J., Bai, X., Zhu, H., Cui, Q., Li, X., Chen, Y., Wang, Y., Liu, Y."Immunochemotherapy for primary central nervous system lymphoma with rituximab, methotrexate, cytarabine and dexamethasone: Retrospective analysis of 18 cases". Molecular and Clinical Oncology 3, no. 4 (2015): 949-953. https://doi.org/10.3892/mco.2015.566