Management of Patients with Poor-Prognosis Nonseminomatous Germ Cell Cancer

Abstract

The treatment and outcome of 57 patients with poor-prognosis metastatic nonseminomatous germ cell cancer were reviewed. The patients were treated between 1980 and 1986. Poor-prognosis patients were characterized by the presence of at least one of the following findings: (1) retroperitoneal tumor mass greater than 10 cm; (2) greater than 3 lung metastases, the largest being greater than 2 cm; (3) extrapulmonary, extralymphatic, metastases; and (4) extragonadal primary tumor. The intended treatment consisted of cisplatin-based combination chemotherapy followed by secondary surgery. From 1980 to 1983 a modified Einhorn regimen was used (cisplatin 100 mg/m2 per cycle; CVB). In case of unacceptable vinblastine toxicity, this drug was substituted by VP-16 (500 mg per m2 per cycle; BEP20). From October 1983 the intention was to replace at least 3 of the CVB/BEP20 cycles by BEP60 cycles (days 1-3: cisplatin 60 mg/m2, days 1-3: VP-16 120 mg/m2; days 1, 5, 15: bleomycin 30 mg). There were 33 patients in the CVB/BEP20 group and 24 patients in the BEP60 group. Two patients of the CVB/BEP20 group and 6 patients of the BEP60 group were not evaluable for response, but are included in the survival analysis. The reasons for exclusion from response evaluation were that these patients could not receive the intended chemotherapy in appropriate doses due to severely reduced pretreatment general condition or due to early death. Fourteen patients with multiple lung metastases but no other poor-prognosis criteria had a 93% survival indicating that they did not represent poor-prognosis germ cell cancer. After excluding these 14 patients, the 4-year survival was 58% for 19 CVB/BEP20 patients and 72% for BEP60 patients. This difference did not reach the level of statistical significance in this limited series. The introduction of high-dose cisplatin had thus not led to clearly superior treatment results as compared to CVB/BEP20.