During the ALL Hub Steering Committee meeting in November 2025, key opinion leaders met to discuss strategies to prevent relapse post hematopoietic stem cell transplantation (HSCT) / cellular therapy in B-cell acute lymphoblastic leukemia (B-ALL). The meeting opened with a presentation by Ibrahim Aldoss and featured a discussion including Charles Mullighan, José María Ribera, Sabina Chiaretti, Andre Baruchel, Wendy Stock, Daniel DeAngelo, and Anita Rijneveld.
During his presentation, Aldoss highlighted that despite advances in multi-agent chemotherapy and novel immunotherapies allowing an increased number of patients to undergo allogeneic (allo) HSCT – a potentially curative approach in B-ALL – post-transplant relapse, as well as relapse following CAR T-cell therapy, remains a major cause of treatment failure. He discussed several studies exploring relapse-preventive measures post transplantation, including established strategies such as tyrosine kinase (TKI) maintenance in patients with Philadelphia-chromosome positive (Ph+) ALL, and newer strategies, such as the use of blinatumomab, inotuzumab ozogamicin, or prophylactic donor-derived CAR T-cell therapy, which have shown promising initial activity in patients with B-ALL. He also outlined the major considerations that influence the decision to initiate maintenance therapy after allo-HSCT or salvage therapy post-CAR T-cell therapy.
This educational resource is independently supported by Pfizer. All content was developed independently by the steering committee in collaboration with SES. Funders were allowed no influence on the content of the discussion.
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