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Factors Associated With Overall Survival in Acute Myeloid Leukemia Patients Before and After Hematopoietic Stem Cell Transplant. | LitMetric

AI Article Synopsis

  • The study aimed to identify factors that affect overall survival in patients with acute myeloid leukemia who underwent stem cell transplants, focusing on pretransplant therapies and the role of minimal residual disease.
  • A total of 76 patients were analyzed, revealing high relapse rates and significantly lower survival rates for those who relapsed compared to those who did not.
  • The findings suggested that relapse is a crucial predictor of poor prognosis, while factors like cytogenetic status and minimal residual disease did not significantly influence overall survival.

Article Abstract

Objectives: Our aim was to identify factors associated with overall survival and the efficacy of postrelapse treatment protocols and to determine whether pretransplant consolidation therapy and minimal residual disease status pose a survival benefit.

Materials And Methods: Patients with acute myeloid leukemia who underwent stem cell transplant between 2007 and 2018 were enrolled retrospectively. The effects of pretransplant cytogenetic and minimal residual disease status, pretransplant consolidation therapies, development of graft-versus-host disease, postrelapse treatment protocols, and type of con-ditioning regimens on overall survival were analyzed.

Results: In 76 study patients, the cumulative overall 1- and 5-year relapse probabilities were 67.8% and 58.7%, respectively. Overall survival rates at 3 and 5 years in patients with and without relapse were 23.5% and 0% and 95.9% and 91.1% (P < .001), respectively. Although mean postrelapse overall survival was better with intensive salvage plus donor lymphocyte infusion, no significant differences were shown versus other therapies (intensive salvage, nonintensive salvage, intensive salvage or nonintensive salvage plus donor lymphocyte infusion, or supportive therapy). Twenty-three patients (30.3%) died during the study period with a median survival of 9.6 months. Patients with favorable, intermediate, and unfavorable cytogenetic status showed overall survival of 46.6 ± 10.4, 54.6 ± 4.4, and 36.9 ± 5.9 months (P = .807). Patients with and without minimal residual disease and patients who received or did not receive consolidation therapy had similar overall survival. Relapse was an independent predictor of overall survival (increased mortality risk of 26.22). Patients who developed graft-versus-host disease showed decreased relapse.

Conclusions: Relapse is the most important predictor of overall survival and is associated with poor prognosis. Pretransplant minimal residual status and cytogenetic status showed no effect on relapse rates and overall survival, and consolidation therapy did not improve outcomes.

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Source
http://dx.doi.org/10.6002/ect.2018.0352DOI Listing

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