Allogenic Stem Cell Transplantation (SCT) With Non-myeloablative Conditioning in Patients With Relapse Non-Hodgkin's Lymphoma (NHL)

"Conditioning Regimen~1. Rituximab, 250 mg/m2 on days -21 and -14.~2. Ibritumomab tiuxetan (Zevalin): 0.4 mCi/kg (14.8 MBq/kg). Maximum: 32 mCi on day -14.~Chemotherapy:~* Fludarabine 30 mg/m2/day on days -7, -6, -5, -4 and -3 as a 30-min infusion.~* Melphalan 70 mg/m2/day on days -3 and -2 as a 15-min infusion.~Chemotherapy for relapsing patients after autologous transplantation including melphalan over the last 6 months:~* Thiotepa 5 mg/kg over 4 hours every 12 hours on day -8.~* Fludarabine 30 mg/m2/day on days -7, -6, -5, -4 and -3 as a 30-min infusion.~* Melphalan 70 mg/m2/day on day -2 as a 15-min infusion."