Purpose: Patients with relapsed extragonadal germ cell tumors (EGCT) are usually treated in an identical fashion as patients with recurrent testicular cancer. However, little is known about the long-term outcome in these patients and whether they have comparable results to patients with a testicular primary tumor. The purpose of this study was to evaluate the effect of salvage chemotherapy on long-term survival in patients with EGCT.
Materials and methods: We conducted a retrospective review of 73 patients with relapsed extragonadal nonseminomatous germ cell tumors (GCTs) treated at Indiana University between 1976 and 1993. All patients received cisplatin-containing regimens as primary chemotherapy.
Results: Only five of 73 patients (7%) were long-term disease-free survivors after salvage chemotherapy. The remaining 68 patients are either dead of disease or toxicity (n = 63), or alive with progressive disease (PD) (n = 5). Twenty-eight patients received high-dose chemotherapy with autologous bone marrow transplant (ABMT) at some point during their disease, and none of these patients are continuously disease-free.
Conclusion: Although similar salvage chemotherapy strategies will cure approximately 30% of patients with recurrent testicular cancer, new approaches are needed for EGCT.