Rapidly recycled, intensive alternating chemotherapy in heavily pretreated progressive nonseminomatous germ cell tumors a feasibility study.

To evaluate the feasibility and the efficacy of an intensive alternating chemotherapy regimen with hematopoietic growth factor support in the late salvage treatment of patients with metastatic nonseminomatous germ cell tumors (NSGCT), 14 patients with refractory or recurrent disease were treated with a combination regimen of vinblastine and bleomycin (VB) followed by three weekly cycles of BOP (bleomycin + vincristine + cisplatin) and subsequent CISCA (cyclophosphamide + doxorubicin + cisplatin) cycles. All patients experienced a grade 3 or 4 neutropenia despite prophylactic growth factor support; II patients required empiric antimicrobial therapy during the chemotherapy program. No toxic death or other significant adverse effect was seen. Eight patients achieved a complete remission and three patients had a partial remission with normalization of serum tumor markers at completion of chemotherapy. Four patients received high-dose chemotherapy with autologous bone marrow transplantation as consolidation therapy and one patient underwent a salvage surgery. Three patients remain free of disease at over 18, 26, and 36 months after therapy. We demonstrate here the feasibility of an intensive alternating chemotherapy schedule in the late salvage treatment of progressive NSGCT. Our results also suggest that the combination of such an approach with high-dose chemotherapy (HDCT) and/or surgery can be used in a curative attempt after the failure of first line salvage therapy.