Spots Global Cancer Trial Database for High-dose Chemotherapy as Second-line Drug Therapy for Relapsed Germ Cell Tumors

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Trial Identification

Brief Title: High-dose Chemotherapy as Second-line Drug Therapy for Relapsed Germ Cell Tumors

Official Title: High-dose Chemotherapy as Second-line Drug Therapy for Relapsed Germ Cell Tumors

Study ID: NCT06418789

Conditions

Germ Cell Tumor

Interventions

High-dose chemotherapy (TI- 2 cycles, CE- 3 cycles )

Study Description

Brief Summary: This is a prospective, single-center, non-randomized phase II study. Patients with germ cell tumors of gonadal and extragonadal localization who have progressed after prior platinum-containing first-line chemotherapy will receive high-dose chemotherapy with TI (2 cycles) folollowed by high dose CE chemotherapy with autologous stem cell transplantation (3 cycles). The primary endpoint of the study is to evaluate the efficacy high-dose chemotherapy as second-line drug therapy for patients with advanced germ cell tumors.

Detailed Description: Germ cell tumors are curable diseases. Only a small proportion of patients fail to be cured: those who experience a primary resistance to chemotherapy and those who relapsed after first line conventional dose cisplatin-based chemotherapy. Nowadays, there is heterogeneity of practice in salvage approaches. This includes conventional chemotherapy high dose chemotherapy with autologous stem cell transplant. Best choice of the therapy strategy is an unmet clinical need now. This is why this single-center, non-randomized phase II study will be conducted at the N.N. Petrov National Medical Research Center of Oncology. Patients with germ cell tumors of gonadal and extragonadal localization who have progressed after prior platinum-containing first-line chemotherapy will receive two cycles of high-dose TI (Paclitaxel 200mg/m² on day 1, Ifosfamide 2000mg/m² daily from days 1 to 3 of 14-day cycle. G-CSF 10 micrograms/Kg SC daily day on days 6-14 day or until CD34 harvest; leukapheresis will be performed starting on day 11 in case of CD45+CD34+ blood level above 20x10\^6/L is achieved), followed by three cycles of high dose CE (Carboplatin AUC=8 IV daily days -4 to -2, Etoposide 400mg/m\^2 IV daily days -4 to -2, autlologous stem cell transplantation at day 0, GCSF support from day 4.) The primary endpoint of the study is to evaluate the efficacy by measuring progression-free survival. The secondary endpoints of the trial are overall survival, response rate by RECIST, safety and prognostic factors analysis.