[Use of blinatumomab in children acute lymphoblastic leukemia in the Grand Ouest interregion: A chance for all].
Bull Cancer 2019;
106:206-215. [PMID:
30638898 DOI:
10.1016/j.bulcan.2018.11.012]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 11/06/2018] [Accepted: 11/14/2018] [Indexed: 11/23/2022]
Abstract
INTRODUCTION
Relapsed/refractory acute lymphoblastic leukemia (ALL) in children has a pejorative prognosis and justifies to be treated by hematopoietic stem cell transplantation (HSCT). A minimal residual disease (MRD) before transplantation is a major part of prognosis. Blinatumomab, a bispecific antibody CD19+/CD3+, allowed to achieve a cytologic and molecular complete remission in adults with refractory B-precursor ALL. This retrospective study analyses results from a pediatric cohort treated by blinatumomab thanks to an interregional structuring consortium.
PATIENTS AND METHODS
Patients between 0 and 23 years old, from the 7 centers of the french "Grand Ouest" interregional network, treated by blinatumomab for a relapsed or refractory ALL, from January 2015 to January 2018, were included. The efficiency of blinatumomab was assessed in terms of complete remission, minimal residual disease, overall survival, and tolerability of treatment.
RESULTS
Thirteen of 18 patients achieved a complete remission, with negative minimal residual disease for ten of them. Fourteen patients proceeded to stem cell transplantation,. Eight out of 14 patients obtained long term remission after HSCT. As far as tolerance is concerned, no serious adverse event, neurological or psychiatric disorder, was observed.
CONCLUSION
Thanks to an interregional network collaboration, all children with high risk ALL coming from the western french interregion could be treated by blinatumomab. Blinatumomab offered good hematological conditions to undergo HSCT with a good tolerability.
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