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Jabbour E, Zugmaier G, Agrawal V, Martínez-Sánchez P, Rifón Roca JJ, Cassaday RD, Böll B, Rijneveld A, Abdul-Hay M, Huguet F, Cluzeau T, Díaz MT, Vucinic V, González-Campos J, Rambaldi A, Schwartz S, Berthon C, Hernández-Rivas JM, Gordon PR, Brüggemann M, Hamidi A, Chen Y, Wong HL, Panwar B, Katlinskaya Y, Markovic A, Kantarjian H. Single agent subcutaneous blinatumomab for advanced acute lymphoblastic leukemia. Am J Hematol 2024; 99:586-595. [PMID: 38317420 DOI: 10.1002/ajh.27227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 01/05/2024] [Accepted: 01/08/2024] [Indexed: 02/07/2024]
Abstract
Blinatumomab is a BiTE® (bispecific T-cell engager) molecule that redirects CD3+ T-cells to engage and lyse CD19+ target cells. Here we demonstrate that subcutaneous (SC) blinatumomab can provide high efficacy and greater convenience of administration. In the expansion phase of a multi-institutional phase 1b trial (ClinicalTrials.gov, NCT04521231), heavily pretreated adults with relapsed/refractory B-cell acute lymphoblastic leukemia (R/R B-ALL) received SC blinatumomab at two doses: (1) 250 μg once daily (QD) for week 1 and 500 μg three times weekly (TIW) thereafter (250 μg/500 μg) or (2) 500 μg QD for week 1 and 1000 μg TIW thereafter (500 μg/1000 μg). The primary endpoint was complete remission/complete remission with partial hematologic recovery (CR/CRh) within two cycles. At the data cutoff of September 15, 2023, 29 patients were treated: 14 at the 250 μg/500 μg dose and 13 at 500 μg/1000 μg dose. Data from two ineligible patients were excluded. At the end of two cycles, 12 of 14 patients (85.7%) from the 250 μg/500 μg dose achieved CR/CRh of which nine patients (75.0%) were negative for measurable residual disease (MRD; <10-4 leukemic blasts). At the 500 μg/1000 μg dose, 12 of 13 patients (92.3%) achieved CR/CRh; all 12 patients (100.0%) were MRD-negative. No treatment-related grade 4 cytokine release syndrome (CRS) or neurologic events (NEs) were reported. SC injections were well tolerated and all treatment-related grade 3 CRS and NEs responded to standard-of-care management, interruption, or discontinuation. Treatment with SC blinatumomab resulted in high efficacy, with high MRD-negativity rates and acceptable safety profile in heavily pretreated adults with R/R B-ALL.
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Affiliation(s)
- Elias Jabbour
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | - Vaibhav Agrawal
- Department of Hematology and Hematopoietic Cell Transplantation, Gehr Family Center for Leukemia Research, City of Hope National Medical Center, Duarte, California, USA
| | - Pilar Martínez-Sánchez
- Department of Hematology, Hospital Universitario 12 de Octubre, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), CNIO, CIBERONC, Madrid, Spain
| | - José J Rifón Roca
- Hematology and Hemotherapy Department, Clínica Universidad de Navarra, Pamplona, Spain
| | - Ryan D Cassaday
- Division of Hematology and Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Boris Böll
- First Department of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, University of Cologne, Cologne, Germany
| | - Anita Rijneveld
- Department of Hematology, Erasmus University Medical Center Cancer Institute, Rotterdam, The Netherlands
| | - Maher Abdul-Hay
- Perlmutter Cancer Center, New York University Langone Health, New York, New York, USA
| | - Françoise Huguet
- Department of Hematology, Institut Universitaire du Cancer-Oncopole CHU de Toulouse, Toulouse, France
| | | | - Mar Tormo Díaz
- Hematology Department, Hospital Clínico Universitario de Valencia, Instituto de Investigación Sanitaria INCLIVA, Valencia, Spain
| | - Vladan Vucinic
- Department of Hematology and Cell Therapy, University Hospital Leipzig, Leipzig, Germany
| | | | - Alessandro Rambaldi
- Department of Oncology-Hematology, University of Milan, Milan and Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Stefan Schwartz
- Department of Hematology, Oncology and Tumor Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität and Humboldt-Universität zu Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Céline Berthon
- Centre Hospitalier Universitaire de Lille, Lille, France
| | - Jesús María Hernández-Rivas
- IBSAL, IBMCC, CSIC, Cancer Research Center, University of Salamanca, Salamanca, Spain
- Department of Hematology, University Hospital of Salamanca, Salamanca, Spain
- CIBERONC, Research Group CB16/12/00233, Salamanca, Spain
| | | | - Monika Brüggemann
- Department of Hematology, University of Schleswig-Holstein, Kiel, Germany
| | - Ali Hamidi
- Amgen Inc., Thousand Oaks, California, USA
| | - Yuqi Chen
- Amgen Inc., Thousand Oaks, California, USA
| | - Hansen L Wong
- Clinical Pharmacology, Modeling and Simulation, Amgen Inc., South San Francisco, California, USA
| | | | | | | | - Hagop Kantarjian
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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