RT Journal Article T1 Allogeneic Stem Cell Transplantation in Mantle Cell Lymphoma; Insights into Its Potential Role in the Era of New Immunotherapeutic and Targeted Therapies: The GETH/GELTAMO Experience. A1 Gutierrez, Antonio A1 Bento, Leyre A1 Novelli, Silvana A1 Martin, Alejandro A1 Gutierrez, Gonzalo A1 Queralt Salas, Maria A1 Bastos-Oreiro, Mariana A1 Perez, Ariadna A1 Hernani, Rafael A1 Cruz Viguria, Maria A1 Lopez-Godino, Oriana A1 Montoro, Juan A1 Piñana, Jose Luis A1 Ferra, Christelle A1 Parody, Rocio A1 Martin, Carmen A1 Español, Ignacio A1 Yañez, Lucrecia A1 Rodriguez, Guillermo A1 Zanabili, Joud A1 Herrera, Pilar A1 Varela, Maria Rosario A1 Sampol, Antonia A1 Solano, Carlos A1 Caballero, Dolores K1 CAR-T cell therapy K1 Acute graft-versus-host disease K1 Allogeneic stem-cell transplantation K1 Graft-versus-lymphoma effect K1 Mantle cell lymphoma K1 Non-relapse mortality K1 Target therapy AB Allo-SCT is a curative option for selected patients with relapsed/refractory (R/R) MCL, but with significant NRM. We present the long-term results of patients receiving allo-SCT in Spain from March 1995 to February 2020. The primary endpoints were EFS, OS, and cumulative incidence (CI) of NRM, relapse, and GVHD. We included 135 patients, most (85%) receiving RIC. After a median follow-up of 68 months, 5-year EFS and OS were 47 and 50%, respectively. Overall and CR rates were 86 and 80%. The CI of relapse at 1 and 3 years were 7 and 12%. NRM at day 100 and 1 year were 17 and 32%. Previous ASCT and Grade 3-4 aGVHD were associated with a higher NRM. Grade 3-4 aGVHD, donor type (mismatch non-related), and the time-period 2006-2020 were independently related to worse EFS. Patients from 1995-2005 were younger, most from HLA-identical sibling donors, and were pretreated less. Our data confirmed that allo-SCT may be a curative option in R/R MCL with low a CI of relapse, although NRM is still high, being mainly secondary to aGVHD. The arrival of new, highly effective and low toxic immunotherapeutic or targeted therapies inevitably will relegate allo-SCT to those fit patients who fail these therapies, far away from the optimal timing of treatment. PB MDPI SN 2072-6694 YR 2022 FD 2022-05-27 LK http://hdl.handle.net/10668/20899 UL http://hdl.handle.net/10668/20899 LA en NO Gutierrez A, Bento L, Novelli S, Martin A, Gutierrez G, Queralt Salas M, et al. Allogeneic Stem Cell Transplantation in Mantle Cell Lymphoma; Insights into Its Potential Role in the Era of New Immunotherapeutic and Targeted Therapies: The GETH/GELTAMO Experience. Cancers (Basel). 2022 May 27;14(11):2673 DS RISalud RD Jul 4, 2025