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AALL1731 trial: Blinatumomab + chemotherapy in pediatric patients with SR B-ALL

Mar 4, 2026

Learning objective: After reading this article, learners will be able to recall the latest efficacy and safety data for blinatumomab + chemotherapy in pediatric patients with standard-risk B-ALL.


Do you know... Based on the updated results from the AALL1731 trial, what was the impact on adverse prognostic factors when blinatumomab was added to chemotherapy vs chemotherapy alone?

The randomized phase III AALL1731 (NCT03914625) trial assessed the efficacy and safety of adding blinatumomab and alternating with chemotherapy vs chemotherapy alone in the first-line consolidation phase in the treatment of pediatric patients aged 1 year to <10 years with newly diagnosed Philadelphia-chromosome negative (Ph−) standard-risk (SR) B-cell acute lymphoblastic leukemia.1 

At the first efficacy interim analysis, with a median 2.5 years of follow-up, which included 1,440 randomized patients, data indicated a disease-free survival benefit with the addition of blinatumomab to chemotherapy, and randomization was stopped early.1 Results from this trial were published in the New England Journal of Medicine by Gupta et al.1 Updated results, with a median 3.5 years of follow-up, were presented by Gupta during the 67th American Society of Hematology (ASH) Annual Meeting and Exposition, December 6–9, 2025, Orlando, US, and demonstrated that the benefit of blinatumomab + chemotherapy was sustained in this patient population.2

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This educational resource is independently supported by Amgen. All content was developed by SES in collaboration with an expert steering committee. Funders were allowed no influence on the content of this resource.

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