PEPTIDE RECEPTOR RADIONUCLIDE THERAPY (PRRT) WITH 90Y-DOTATOC IN RELAPSED/REFRACTORY DIFFUSE LARGE B CELL AND MANTLE CELL LYMPHOMAS.~This is a prospective, single arm, open-label, phase II study. It is estimated that a maximum of 35 patients will be enrolled in 36 months; the treatment efficacy will be tested in 18 patients in the first stage, if 2 or fewer patients will show an objective response, the study will be closed; if > 2 objective responses will be observed, a total of 35 patients will be enrolled.~Follow up period is 48 months.~Single-center~The primary objective is the evaluation of objective response rate (ORR). of Y-PRRT in relapsed or refractory DLBCl and MCL NHL, not suitable to other therapies, included HDCT, or patients relapsed after HDCT with ASCT.~The secondary objectives are toxicity (acute and late), progression free survival, overall survival and Quality of life.~35 patients will be enrolled in 36 months in two stages (18 patients in the first stage, if 2 or fewer patients will show an objective response, the study will be closed).~Each patient will receive a maximum cumulative 90Y-DOTATOC activity of 11.1 GBq (300 mCi), divided into 4 cycles (1.8 - 2.8 GBq for each cycle) with an interval of 6 - 8 weeks between cycles. The 90Y-DOTATOC will be slowly infused intravenously.~The study will be conducted following the Optimal Two Stage Design assuming the true response probability:~under H0 (p0) <=10%~under H1 (p1) >=30% and considering alpha=0.05 and power=0.90.
This is a prospective, single arm,single centre open-label, phase II study in relapsed or refractory DLBCL and MCL non-Hodgkin's lymphoma (NHL), not suitable to other therapies, included HDCT, or patients relapsed after high-dose chemotherapy (HDCT) with autologous stem-cell transplantation (ASCT), treated with peptide receptor radionuclide therapy with 90Y-Dotatoc.~Each patient will receive a maximum cumulative 90Y-DOTATOC activity of 11.1 GBq (300 mCi), divided into 4 cycles (1.8 - 2.8 gigabequerel (GBq) for each cycle) with an interval of 6 - 8 weeks between cycles. The 90Y-DOTATOC will be slowly infused intravenously.~35 patients will be enrolled in 36 months in two stages (18 patients in the first stage, if 2 or fewer patients will show an objective response, the study will be closed).