- Patients with localized ENKTL (stage IE or stage IIE) will receive involved-field radiation (IRFT) with concomitant weekly intravenous Cisplatin. Three to five weeks after the completion of IFRT and cisplatin, B-MAD (Brentuximab vedotin, Methotrexate, L-asparaginase and Dexamethasone) regimen will be given every 21 days for 3 cycles.