The treatment of hairy-cell leukaemia with 2'-deoxycoformycin.
Eight patients with hairy-cell leukaemia (HCL) complicated by pancytopenia were treated with low dose regimens of the adenosine deaminase ( ADA) inhibitor 2'-deoxycoformycin (DCF). All patients had significant haematological and clinical improvement. One patient who had been splenectomized and five patients with mild to moderate splenomegaly achieved normal blood counts within 2 months, which have been maintained for up to 18 months. Complete remissions occurred in two patients and four patients had 50-95% marrow clearance of hairy cells. The initial DCF treatments produced a 1-3 g/dl fall in the haemoglobin levels and one patient had a temporary reduction in granulocyte and platelet counts. Five patients had nausea/vomiting, and/or lethargy following DCF, but there was no correlation between the plasma levels of deoxyadenosine and adenosine and the incidence or severity of these side effects. An increased incidence of infection and drug hypersensitivity may reflect the effects of DCF on the immune system. Low dose DCF is a highly effective agent in HCL.[1]References
- The treatment of hairy-cell leukaemia with 2'-deoxycoformycin. Johnston, J.B., Glazer, R.I., Pugh, L., Israels, L.G. Br. J. Haematol. (1986) [Pubmed]
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