Abstract: Although it is known that increasing age is associated with increased morbidity and mortality in allogeneic transplantation (allo-HSCT), individualization of the process may allow to perform it in progressively older patients. This study analyzed the outcome of 97 patients older than 60 years with a first allo-HSCT performed at our institution between 2011 and 2019. Median age was 66 years (range 60?79) and 15.4% were older than 70 years. The most frequent diagnosis was acute leukemia (50.5%), and 58.8% received a myeloablative conditioning. With a median follow-up of 33.9 months (range 7.9- 111.5), at 3-years overall survival (OS) was 50%; progression-free survival (PFS), 46%; cumulative incidence of relapse, 22%; and non-relapse mortality (NRM), 32%. There were no significant differences in OS (p=0.415), PFS (p=0.691), cumulative incidence of relapse (p=0.357) or NRM (p=0.658) between patients of 60?64 years (n=37), 65-69 (n=45) and ?70 years (n=15). No differences were observed either depending on the intensity of the conditioning regimen in terms of OS (p=0.858), PFS (p=0.729), cumulative incidence of relapse (p=0.416) or NRM (p=0.270). In conclusion, older adults can safely and effectively undergo allo-HSCT with proper patient selection and individualized transplantation procedures

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