DEOXYCOFORMYCIN IN THE TREATMENT OF MATURE T-CELL LEUKEMIAS

被引:51
作者
DEARDEN, C
MATUTES, E
CATOVSKY, D
机构
[1] ROYAL MARSDEN HOSP,ACAD DEPT HAEMATOL & CYTOGENET,FULHAM RD,LONDON SW3 6JJ,ENGLAND
[2] INST CANC RES,LONDON,ENGLAND
关键词
D O I
10.1038/bjc.1991.423
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
We describe the results of treatment with 2'-deoxycoformycin (DCF) in 68 patients with post-thymic (mature) T-cell malignancies. These included: prolymphocytic leukaemia (T-PLL), 31, HTLV-I+ adult T-cell leukaemia/lymphoma (ATLL), 20, cutaneous T-cell lymphoma (CTCL), comprising mycosis fungoides and Sezary syndrome, 13, and large granular lymphocytic leukaemia, four. Two-thirds of patients were refractory to previous therapy, which included four drug combinations. DCF was given intravenously at 4 mg m-2 weekly for the first 4 weeks and then every 2 weeks until maximal response. Toxicity was very low with only one death resulting from prolonged neutropenia. Overall response rates, partial (PR) and complete (CR), were 38%, with variations according to diagnosis. Best responses, 54%, were seen in CTCL but limited to Sezary patients, one CR, six PR, whilst none of the mycosis fungoides responded. Responses in T-PLL were recorded in 48% including three CR (of 8-12 months' duration unmaintained) and 12 PR. Fifteen per cent of responses were seen in ATLL. The only ATLL responders - two CR, one PR - were those patients who received combination chemotherapy prior to DCF, with reduction of tumour bulk but short of PR. When results were analysed according to membrane phenotypes it was apparent that responses were seen mainly in cases with CD4+, CD8- T cells - 22 of 47 (47%) - contrasting with only three of 19 (16%) with other T-cell phenotypes. We conclude that DCF is a useful therapy for the treatment of T-cell leukaemias, in particular Sezary syndrome and T-PLL, and should play a part in strategies to improve the natural history of this group of lymphoid malignancies.
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页码:903 / 906
页数:4
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