Phase 3 Trial of Blinatumomab vs Standard Chemotherapy in Pediatric Subjects With HIgh-Risk (HR) First Relapse B-precursor Acute Lymphoblastic Leukemia (ALL)

Summary

B-precursor ALL is an aggressive malignant disease. Therapy is usually stratified according to risk characteristics to ensure that appropriate treatment is administered to patients with high-risk of relapse. In general, pediatric treatment regimens are more intense than those employed in adults and include courses of combination chemotherapy. Standard of care chemotherapy is associated with considerable toxicity. There is a lack of novel treatment options for subjects who relapse or are refractory to treatment. Therefore, innovative therapeutic approaches are urgently needed. Blinatumomab is a bispecific single-chain antibody construct designed to link B cells and T cells resulting in T cell activation and a cytotoxic T cell response against CD19 expressing cells. This study will evaluate the event-free survival (EFS) after treatment with blinatumomab when compared to standard of care (SOC) chemotherapy. The effect of blinatumomab on overall survival and reduction of minimal residual disease compared to SOC chemotherapy will also be investigated.

Timeline

Start

2015-11-10

Primary completion

2019-07-17

Completion

2022-11-21

Publications

• Background Locatelli F, Eckert C, Hrusak O, Buldini B, Sartor M, Zugmaier G, Zeng Y, Pilankar D, Morris J, von Stackelberg A. Blinatumomab overcomes poor prognostic impact of measurable residual disease in pediatric high-risk first relapse B-cell precursor acute lymphoblastic leukemia. Pediatr Blood Cancer. 2022 Aug;69(8):e29715. doi: 10.1002/pbc.29715. Epub 2022 Apr 28.
• Background Blinatumomabe em pacientes pediátricos com leucemia linfoblástica aguda B em primeira recidiva de alto risco: um estudo de custo-efetividade. van Beurden-Tan CHY, Ribeiro RA, Seber A, de Martino Lee ML, Marçola M, Schuetz R, Loggetto SR, Maiolino A. Jornal Brasileiro de Economia da Saúde 14(1): 41-50. 10.21115/JBES.v14.n1.p41-50
• Background Locatelli F, Zugmaier G, Rizzari C, Morris JD, Gruhn B, Klingebiel T, Parasole R, Linderkamp C, Flotho C, Petit A, Micalizzi C, Mergen N, Mohammad A, Kormany WN, Eckert C, Moricke A, Sartor M, Hrusak O, Peters C, Saha V, Vinti L, von Stackelberg A. Effect of Blinatumomab vs Chemotherapy on Event-Free Survival Among Children With High-risk First-Relapse B-Cell Acute Lymphoblastic Leukemia: A Randomized Clinical Trial. JAMA. 2021 Mar 2;325(9):843-854. doi: 10.1001/jama.2021.0987.
• Background Caillon M, Brethon B, van Beurden-Tan C, Supiot R, Le Mezo A, Chauny JV, Majer I, Petit A. Cost-Effectiveness of Blinatumomab in Pediatric Patients with High-Risk First-Relapse B-Cell Precursor Acute Lymphoblastic Leukemia in France. Pharmacoecon Open. 2023 Jul;7(4):639-653. doi: 10.1007/s41669-023-00411-4. Epub 2023 Apr 18.
• Background Peters C, Bruno A, Rizzari C, Brescianini A, Von Stackelberg A, Linderkamp C, Zeng Y, Zugmaier G, Locatelli F. Blinatumomab is associated with better post-transplant outcome than chemotherapy in children with high-risk, first-relapse B-cell acute lymphoblastic leukemia irrespective of the conditioning regimen. Haematologica. 2025 Jan 1;110(1):234-238. doi: 10.3324/haematol.2024.285837. No abstract available.
• Background Locatelli F, Rizzari C, Gruhn B, Klingebiel T, Parasole R, Linderkamp C, Flotho C, Petit A, Micalizzi C, Eckert C, Moricke A, Sartor M, Hrusak O, Peters C, Saha V, Vinti L, Desai R, Henry M, Zugmaier G, von Stackelberg A. Blinatumomab consolidation in children with high-risk first-relapse B-cell precursor acute lymphoblastic leukemia: final 5-year follow-up analysis of a randomized multicenter phase 3 study. Leukemia. 2026 Jan;40(1):230-234. doi: 10.1038/s41375-025-02800-6. Epub 2025 Nov 13. No abstract available.
• Diaz Martinez JP, de Maraumont TA, Camacho LM, Garcia L. Cost-effectiveness of blinatumomab for the treatment of B-precursor acute lymphoblastic leukemia pediatric patients with high-risk first-relapse in Mexico. Leuk Res. 2024 Oct;145:107560. doi: 10.1016/j.leukres.2024.107560. Epub 2024 Aug 22.

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Indications