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Secondary tumours following etoposide containing therapy for germ cell cancer
C Boshoff1, R H Begent, R T Oliver
1Royal London Hospital, U.K.
Background:
Reports have implied etoposide as the cause of secondary leukaemia in patients treated for germ cell cancer.
Patients And Methods:
Between 1979 and 1992, 679 male patients with germ cell cancer received etoposide containing chemotherapy.
Results:
Six of 679 patients developed acute myeloid leukaemia (relative risk 150; CI: 55-326). None of these patients had a primary mediastinal germ cell tumour and only 1 patient received previous radiotherapy. The median interval between the onset of cytotoxic treatment and the development of leukaemia was 27 months. The FAB M4 morphology was seen in 4 of 6 cases.
Conclusion:
The benefit of etoposide containing protocols outweigh the risk of leukaemia in patients with intermediate or high risk disease, however in patients with good risk disease non-etoposide containing protocols should be explored.