The feasibility and the efficacy of such an attitude in a multicentric trail using the most active regimen (in term of complete response in metastatic patients) is unknown. The chosen regimen is therefore the intensified MVAC which allows, with the use of G-CSF, to double the dose-intensity of Adriamycin and Cisplatinum, and to decrease by 30% the methotrexate and vinblastine dose-intensity.