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The combination of carboplatin, etoposide, and bleomycin (CEB) was evaluated as initial chemotherapy in 76 patients with good-prognosis metastatic nonseminomatous germ cell tumors (NSGCT) between 1984 and 1988. The classification of eligible patients included Royal Marsden Hospital (RMH) stages IM, IIA, IIB, IIC, IIIA, IIIB, IV0ABCL1, and IV0ABL2. Four courses of combination chemotherapy were administered in a 21-day cycle, and surgical excision of residual mass was performed in 27 cases (23 laparotomies and four thoracotomies). At the time of analysis, median follow-up was 24 months from start of chemotherapy (range, 6 to 54 months). The 2-year cause-specific survival probability was 98.5%, the single cause-related mortality being caused by bleomycin pneumonitis. Five patients failed CEB chemotherapy, but all have been successfully salvaged with a combination of surgery and intensive chemotherapy, follow-up from completion of all treatment being 35 to 44 months. The toxicity of CEB included bone marrow suppression and alopecia in all patients but no significant neurotoxicity or ototoxicity, and minimal renal toxicity. Only four (5%) patients had a decrease in the glomerular filtration rate greater than 15%. In 51% of patients, the hemoglobin fell below 10 g/dL. The WBC count nadir was less than 1,500/microL in 11% of treatment cycles and in 16% the platelet nadir fell below 50,000/microL. Decreases in the WBC and platelet counts were of very brief duration. Only one of 310 CEB cycles was complicated by neutropenic sepsis, and there were no episodes of thrombocytopenic purpura or bleeding. We conclude that the CEB combination represents an effective alternative to cisplatin-based chemotherapy in good-prognosis NSGCT and that the replacement of cisplatin by carboplatin leads to reduced toxicity.
Horwich et al. (Tue,) studied this question.