The recommended dose of BV and ICE will be determined by the phase I Brentuximab Vedotin: MTD mg/kg (cycle 1-3), 1.8 mg/kg (cycle 4) ICE (cycle 1-3): Etoposide 100 mg/m² (day1 to 3); Carboplatine max 800mg (day 2); Ifosfamide + Mesna 5 g/m² (day 2) The recommended dose of BV and ICE will be determined by the phase I.