High-dose Chemotherapy With Autologous Stem Cell Transplantation in Poor Prognosis Germ-cell Tumors: TAXIF II

Summary

High-dose chemotherapy (HD-CT) is able to circumvent platinum-resistance of resistant/refractory germ-cell tumors (GCTs), but expectancy of cure remains low. New strategies are needed with new drugs and a sequential approach. Patients with relapsed (but not absolutely refractory to Cisplatinum-based chemotherapy) poor-prognosis GCTs are scheduled to receive 2 cycles combining epirubicin and paclitaxel followed by 3 consecutive HD-CT supported by stem cell transplantation. One course will combine Taxol, 360 mg/m² + thiotepa, 720 mg/m², followed by two ICE regimens (Ifosfamide, 12 g/m², carboplatin, AUC 20, etoposide, 1500 mg/m²). This phase II study is designed as a Gehan method. The main objective of the study is the complete response rate. With this aim in view, it is planned to enroll in its first step 14 patients to insure that if no complete response (CR) is noticed, study would be stopped for inefficacy (i.e., a CR rate lower than 20%). If one or more CR are noticed, protocol specified that up to 45 patients will be included in order to reduce the confidence interval (CI) of the CR rate. Secondary objectives are the overall response rate (RR), the overall survival (OS) and the progression-free survival (PFS) rates, toxicity and toxic death rate. The statistical analysis is done in terms of intent-to-treat.

Timeline

Start

2004-09

Primary completion

2010-01

Completion

2010-01

Publications

• Background Lotz JP, Bui B, Gomez F, Theodore C, Caty A, Fizazi K, Gravis G, Delva R, Peny J, Viens P, Duclos B, De Revel T, Cure H, Gligorov J, Guillemaut S, Segura C, Provent S, Droz JP, Culine S, Biron P; Groupe d'Etudes des Tumeurs Uro-Genitales (GETUG). Sequential high-dose chemotherapy protocol for relapsed poor prognosis germ cell tumors combining two mobilization and cytoreductive treatments followed by three high-dose chemotherapy regimens supported by autologous stem cell transplantation. Results of the phase II multicentric TAXIF trial. Ann Oncol. 2005 Mar;16(3):411-8. doi: 10.1093/annonc/mdi087. Epub 2005 Jan 19.
• Selle F, Wittnebel S, Biron P, Gravis G, Roubaud G, Bui BN, Delva R, Bay JO, Flechon A, Geoffrois L, Caty A, Soares DG, de Revel T, Fizazi K, Gligorov J, Miclea JM, Dubot C, Provent S, Temby I, Gaulet M, Horn E, Brindel I, Lotz JP. A phase II trial of high-dose chemotherapy (HDCT) supported by hematopoietic stem-cell transplantation (HSCT) in germ-cell tumors (GCTs) patients failing cisplatin-based chemotherapy: the Multicentric TAXIF II study. Ann Oncol. 2014 Sep;25(9):1775-1782. doi: 10.1093/annonc/mdu198. Epub 2014 Jun 3.

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