Short intensive primary chemotherapy and radiotherapy in sporadic primary CNS lymphoma (PCL)
Abstract
To assess the efficacy and toxicity of combined modality therapy with short intensive primary chemotherapy in the treatment of primary CNS lymphoma (PCL). Prospective study of 31 nonimmunodeficient patients with PCL treated with initial chemotherapy (13 shortened MACOP-B; and 18 modified MACOP with high dose methotrexate) followed by radiotherapy (whole brain and a boost). Patients were aged 18-72 years (median 51 years). Eight patients had positive CSF cytology of which one had spinal meningeal disease; one patient had vitreous involvement. The overall complete response (CR) rate after chemotherapy and radiotherapy was 69% (95% Confidence Interval: 49-84%). At a median follow-up of 24 months (4 months to 10 years) median survival was 23 months and 5-year survival 34%. Age, sex, performance status, number of lesions, CSF cytology, and extent of surgery were not of prognostic significance for survival on univariate analysis. Eleven patients developed mucositis (Grade 3+) and 21 hematological toxicity (Grade 3+) with 22 septicemic episodes in 15 patients. Three patients developed dementia, one assumed to be treatment related, and two due to recurrent disease. The survival results of short intensive primary chemotherapy followed b...Continue Reading
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Clinical utility and pharmacology of high-dose methotrexate in the treatment of primary CNS lymphoma
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