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Allogeneic Hematopoietic Cell Transplantation for Adult Acute Lymphoblastic Leukemia in the Modern Era.
Allogeneic Hematopoietic Cell Transplantation for Adult Acute Lymphoblastic Leukemia in the Modern Era. Transplantation and cellular therapy Liang, E. C., Craig, J., Torelli, S., Cunanan, K., Iglesias, M., Arai, S., Frank, M. J., Johnston, L., Lowsky, R., Meyer, E. H., Miklos, D. B., Negrin, R., Rezvani, A., Shiraz, P., Shizuru, J., Sidana, S., Weng, W. K., Bharadwaj, S., Muffly, L. 2022Abstract
Allogeneic hematopoietic cell transplantation (HCT) remains an important treatment for adults with acute lymphoblastic leukemia (ALL). We hypothesized that advances in ALL and transplantation have resulted in improved HCT outcomes in recent years.To evaluate the characteristics and outcomes of adult ALL patients undergoing allogeneic HCT over the last decade.Patients with ALL aged =18 years old who underwent allogeneic HCT at Stanford University between 2008 and 2019 were included in this study. Patients were divided into two Eras based on year of HCT: 2008-2013 (Earlier Era) and 2014-2019 (Later Era).A total of 285 patients were included: 119 patients underwent HCT in the Earlier Era and 166 in the Later Era. Patients transplanted in the Later Era were more likely to be Hispanic (38% vs. 21%) and to have HCT-Comorbidity Index of = 3 (31% vs. 18%). Donor source for HCT also differed with an increase in the use of HLA-mismatched donor sources (38% vs. 24%), notably umbilical cord blood (UCB) in the Later Era (16% vs. 0%). Patients in the Later Era were less likely to undergo transplant with active disease (4% vs.16%); pre-HCT rates of measurable residual disease (MRD) were similar across the Eras (38% vs. 40%). In unadjusted analyses, overall survival (OS) improved across Eras, with 2-year estimates for the Later and Earlier Eras of 73% (95% CI, 66%-80%) vs. 55% (95% CI, 46%-64%), respectively. Multivariable analysis confirmed the association between Later Era and OS (HR?=?0.52, 95% CI, 0.34-0.78). Finally, among patients relapsing after HCT (25% in Later Era and 33% in Earlier Era), the utilization of novel immunotherapies increased in the Later Era (44% vs. 3%), as did the median OS following post-HCT relapse (16 months vs. 8 months, p < 0.001).OS following HCT for adult ALL has improved in recent years. This is due, in part, to a significant improvement in the ability to effectively salvage adults with ALL relapsing after HCT.
View details for DOI 10.1016/j.jtct.2022.05.010
View details for PubMedID 35584783