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  • Title: Primary central nervous system lymphoma: monocenter, long-term, intent-to-treat analysis.
    Author: Kiewe P, Fischer L, Martus P, Thiel E, Korfel A.
    Journal: Cancer; 2008 Apr 15; 112(8):1812-20. PubMed ID: 18318432.
    Abstract:
    BACKGROUND: This retrospective, single-center study assessed the feasibility, outcome, and late side effects of the treatment of immunocompetent patients with primary central nervous system lymphoma (PCNSL) at the authors' institution. METHODS: All 72 consecutive patients diagnosed with PCNSL between January 1994 and February 2005 were scheduled to receive high-dose methotrexate (HDMTX)-based chemotherapy. RESULTS: The median age of the patients was 62 years and the median Karnofsky performance score (KPS) was 70. Twelve patients did not receive HDMTX-based chemotherapy because of poor physical condition or renal insufficiency. Of the 60 patients treated with HDMTX-based chemotherapy, the treatment of 9 was followed with whole-brain irradiation. Of 54 patients who were evaluable for response, 35 (65%) responded (52% with a complete response and 13% with a partial response), and 19 patients (35%) did not. At a median follow-up of 58.7 months, the median progression-free survival was 9 months and the median overall survival (OAS) was 41.4 months. According to the Memorial Sloan-Kettering Cancer Center (MSKCC) prognosis score, patients could be divided into 3 groups with significantly different OAS: 52.9 months for patients aged <50 years, 42.4 months for patients aged >or= 50 years and with a KPS >70, and 5.2 months for patients aged >or= 50 years and with a KPS <70 (P= .009, log-rank test). CONCLUSIONS: Promising long-term results could be achieved with HDMTX-based chemotherapy in patients with PCNSL in this monocenter study. The MSKCC score proved useful for predicting survival.
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