International Journal of Hematology-Oncology and Stem Cell Research 2018. 12(3):191-195.

Successful Outcome of Autologous Stem Cell Transplantation for Relapsed or Refractory Germ Cell Tumors
Seied Asadollah Mousavi, Negin Abedinzadeh, Leila Taj, Amir Kasaeian, Kamran Alimoghaddam, Mohammad Vaezi, Mohammad Zokaasadi, Hosein Kamranzdeh Fumani, Ardeshir Ghavamzadeh

Abstract


Background: Treatment of choice for patients with refractory germ cell tumors (GCT) or recurrence after platinum containing chemotherapy regimens is not yet well recognized. This study is aimed to evaluate the role of high-dose chemotherapy (HDCT) followed by an autologous hematopoietic stem cell transplantation (ASCT) as the second-or third-line of salvage therapy in GCT patients.

Materials and Methods: Since 1997 to 2013, 13 GCT patients failing at least one salvage chemotherapy protocol were included in the study. The patients underwent chemotherapy, and then after a primary response the ASCT was performed. Survival analysis was done using Kaplan-Meier method.

Results: Eleven patients were male and 2 were female. All patients had gonadal tumors except one that had mediastinal GCT. Median follow-up time was 5.45±3.19 years. The estimated 5-year overall and disease-free survival rates were 84.00% and 69.23%, respectively. Five relapses after ASCT and 2 deaths occurred, and the cause of death was due to the relapse of primary disease in both cases. Transplant-related mortality (TRM) did not happen among the study participants.

Conclusion: our results showed acceptable outcomes for ASCT in refractory or relapsed GCT in terms of survival and treatment-related mortality. Larger prospective studies will be required to elucidate different aspects of such an interpretation.


Keywords


Antineoplastic combined chemotherapy protocols, Stem cell transplantation, Neoplasms, Germ cell and embryonal, Survival analysis

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