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Outcome of Pediatric Acute Lymphoblastic Leukemia: Sixty Years of Progress

Overview
Journal Anticancer Res
Specialty Oncology
Date 2019 Sep 15
PMID 31519634
Citations 9
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Abstract

Background: A retrospective analysis was performed to investigate the survival outcomes in pediatric acute lymphoblastic leukemia (ALL) based on time period. We hypothesized that improvement has been obtained with the time-dependent therapeutic era and rise in the gross domestic product (GDP) and Human Development Index (HDI).

Materials And Methods: Data from 710 children who were treated for ALL between 1958 and 2018 at a single pediatric center were analyzed for probability of 5-year overall survival (pOS), event-free survival (pEFS) and relapse risk (pRR). Time periods were defined by the treatment protocols used in seven consecutive therapeutic eras.

Results: Over the 60-year period analyzed, pOS increased from 1.2% to 90.7%, pEFS from 1.2% to 86.6%, and pRR decreased from 98.8% to 9.9% for patients treated in the past decade. Risk of mortality for patients who received chemotherapy and hematopoietic cell transplant was reduced to 9.9% in the recent era, however, no statistically significant survival difference was found between patients treated with stem cell transplant and those not.

Conclusion: The therapeutic era, related to improved GDP and HDI, was a statistically significant predictor of increased OS from ALL.

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