L‐Asparaginase and Prednisolone Pretreatment Followed by Rubidomycin and Cytosine Arabinoside for Induction of Remission in Adult Patients with Acute Myeloblastic Leukaemia

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Abstract
77 unselected adult patients with acute myeloblastic leukaemia (AML), including practically all AML patients from an area with 1.9 million inhabitants, were randomized for either (1) 5 days pretreatment with l‐asparaginase and prednisolone followed by a combination of rubidomycin and cytosine arabinoside (ARAP), or (2) treatment with a combination of rubidomycin, cytosine arabinoside and prednisolone without l‐asparaginase pretreatment (RAP). Complete remission was induced with ARAP in 12 patients (31%) and with RAP in 13 patients (34%). Thus pretreatment with l‐asparaginase did not improve the therapeutic response. The overall remission frequency was significantly higher below the age of 60; 50% compared to 13% above this age. Side‐effects such as liver dysfunction, nausea and vomiting were more common in patients pretreated with l‐asparaginase. Sterilization of the gut did not improve the remission frequency with either regime.