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J Clin Oncol. 1983 Feb;1(2):91-8.

Improved prognosis of diffuse histiocytic and undifferentiated lymphoma by use of high dose methotrexate alternating with standard agents (M-BACOD).


A new combination chemotherapy program (M-BACOD) was administered to 101 patients with advanced diffuse histiocytic and diffuse undifferentiated lymphoma (DHL and DUL). High dose methotrexate (M) 3 g/m2 with leucovorin factor rescue was given on day 14 between cycles of bleomycin (B), adriamycin (A), cyclophosphamide (C), oncovin (O), and dexamethasone (D) administered every 3 weeks for 10 cycles. The complete remission rate (CR) was 72% in all 101 patients or 77% in 95 evaluable patients. The median follow-up is 3 yr 2 mo with one-third of CR patients followed beyond 4 yr. Twenty-six percent of CR patients have relapsed with a projected 5-yr survival rate of 80% (5-yr disease-free rate 65%). The overall survival of all 101 study patients reaches a plateau at 59% projected out to 5 yr. Patients with prior therapy had a significantly lower CR rate than those without prior treatment (p = 0.001); however, no other unfavorable prognostic characteristics could be identified. Relapse in the central nervous system CNS occurred in only 5.4% of CR patients. M-BACOD results in prolonged survival and possible cure in a high proportion of all patients with DHL and DUL.

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