Combination of high-dose cyclophosphamide, BCNU, and VP-16-213 followed by autologous marrow rescue in the treatment of relapsed leukemia.

The combination of high-dose cyclophosphamide, BCNU, and VP-16-213 followed by autologous marrow rescue was evaluated in the treatment of relapsed leukemia refractory to normal-dose chemotherapy. Cyclophosphamide was given at a total dose of 4.5 g/m2, BCNU at a dose of 300 mg/m2, and VP-16-213 at a dose of 600 mg/m2. Seven high-dose treatments followed by marrow rescue were administered to six patients. Two patients achieved complete remissions, three had partial remissions, and one achieved a minimal response. The toxicity of this regimen was moderate.