%0 Journal Article %A Novelli, Silvana %A Bento, Leyre %A Garcia, Irene %A Prieto, Laura %A Lopez, Lucia %A Gutierrez, Gonzalo %A Hernani, Rafael %A Perez, Ariadna %A Esquirol, Albert %A Solano, Carlos %A Bastos, Mariana %A Dorado, Nieves %A Rodriguez, Nancy %A Rodriguez, Guillermo %A Piñana, Jose L %A Montoro, Juan %A Herrera, Pilar %A Luna, Alejandro %A Parody, Rocio %A Martín, Carmen %A Garcia, Estefania %A Lopez, Oriana %A Heras, Inmaculada %A Zanabili, Joud %A Moraleda, Jose M %A Yañez, Lucrecia %A Gutierrez, Antonio %A Zudaire, Teresa %A Cordoba, Raul %A Varela, Rosario %A Ferra, Christelle %A Martinez, Joaquin %A Martinez, Carmen %A Gonzalez-Barca, Eva %A Martino, Rodrigo %A Caballero, Dolores %T Allogeneic Stem Cell Transplantation in Mature T Cell and Natural Killer/T Neoplasias: A Registry Study from Spanish GETH/GELTAMO Centers. %D 2021 %U http://hdl.handle.net/10668/17585 %X Despite advances in understanding the biology of mature T and natural killer (NK)/T cell neoplasia, current therapies, even the most innovative ones, are still far from ensuring its cure. The only treatment to date that has been shown to control aggressive T cell neoplasms in the long term is allogeneic stem cell transplantation (alloSCT). We aim to report the results of alloSCT for advanced mature T and NK/T neoplasias performed in centers from our national GELTAMO/GETH (Grupo Español de Linfoma y Trasplante de Médula Ósea/Grupo Español de Trasplante Hematopoyético y Terapia Celular) over the past 25 years. As a secondary objective, we analyzed the results of alloSCT from haploidentical donors. We performed a retrospective analysis of all patients who received an alloSCT in Spanish centers (n = 201) from September 1995 to August 2018. The 2-year overall survival (OS) and disease-free survival (DFS) were 65.5% and 58.2%, respectively. The univariate for OS and DFS showed statistically different hazard ratios for conditioning intensity, response pre-alloSCT, comorbidity index, donor/receptor cytomegalovirus status and Eastern Cooperative Oncology Group (ECOG) pre-alloSCT, but only a better ECOG pre-alloSCT remained significant in the multivariate analysis. There was an increased incidence of relapse in those patients who did not develop chronic graft-versus-host disease (GVHD) and an increased risk of death in those developing moderate to severe acute GVHD. The 1-year nonrelapse mortality was 21.9% and was mainly due to GVHD (30%) and bacterial infections (17%). When comparing unrelated donors with haploidentical donors, we found similar results in terms of OS and DFS. There was, however, a reduction of acute GVHD in the haploidentical group (P = .04) and trend to a reduction of chronic GVHD. In conclusion, alloSCT is the only curative option for most aggressive T cell neoplasias. Haploidentical donors offer similar results to related donors in terms of survival with a reduction of acute GVHD. %K Allogeneic stem cell transplantation %K Haploidentical %K T cell lymphoma %~