Although hairy cell leukaemia was first described 40 years ago, it is only in the last decade that newer therapeutic agents have enabled effective treatment. The purine nucleoside analogue, 2-chlorodeoxyadenosine (2-CdA) is currently considered as first-line therapy with a very high rate of complete remission. Although adverse events with 2-CdA are increasingly recognized, severe cutaneous reactions have been reported rarely. We describe two consecutive patients treated with 2-CdA for hairy cell leukaemia who both suffered extremely severe cutaneous reactions, one of which was life-threatening.
Earlier studies have indicated a role for serum lactic dehydrogenase (LDH) in haematological and other malignancies. As this is still not a routine test in many units, its value has been re-examined in a retrospective analysis of serum LDH levels in 278 patients with haematological malignancies managed in a single unit. Abnormal levels at diagnosis were found in 42% of these disorders; yet analysis of over 23,000 routine requests for a biochemical screen showed only 4% with an abnormal LDH level. The estimation was also valuable in follow-up of those haematological patients, with rising levels often indicating progressive or relapsing disease even in cases which had shown a normal LDH at diagnosis.
We have prospectively evaluated a regimen of mitozantrone and cytosine arabinoside (Ara-C) as first-line therapy in elderly patients with acute myeloid leukaemia (AML). One hundred and four patients with a median age of 68 (range 60-81) were studied, in whom 86 had de-novo AML, and 18 had preceding myelodysplasia or secondary AML. Complete remission was achieved in 64% of de-novo cases, in 28% of MDS/secondary cases, and in 58% overall. The incidence of early death within 28 d of chemotherapy was 11%. The median disease-free survival (DFS) was 11 months with an actuarial DFS of 15% at 43 months. The median overall survival was 9 months with an actuarial survival of 10% at 44 months. The incidence of non-haematological toxicity was acceptably low, and usually of mild to moderate severity. Quality of life was improved, or unchanged, in 90% of responders. We conclude that mitozantrone and ara-C is an effective and well-tolerated regimen which produces high remission rates in elderly patients with AML.
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