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Alcharakh M, Yun S, Dong Y, Vincelette ND, Daud M, Manzoor S, Riaz IB, Anwer F. Blinatumomab-induced donor T-cell activation for post-stem cell transplant-relapsed acute CD19-positive biphenotypic leukemia. Immunotherapy 2016; 8:847-52. [DOI: 10.2217/imt-2015-0023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Post-stem cell transplantation (SCT) relapsed acute lymphoblastic leukemia (ALL) has extremely poor prognosis with median survival of less than 1 year. Donor lymphocyte infusion, second transplantation, chemotherapy or cytokine treatment have been tried as a salvage regimen without significant clinical benefit. Recently, blinatumomab, a bispecific monoclonal antibody targeting CD3-expressing T cells and CD19-expressing B-cell lineage malignant cells demonstrated promising outcomes in relapsed/refractory ALL patients. Literature on blinatumomab use in biphenotypic ALL along with Philadelphia chromosome positive (Ph+) ALL is limited. We report a case of post-SCT relapsed CD19 expressing biphenotypic lymphoblastic leukemia patient who achieved complete remission after blinatumomab treatment and has lasting remission for 1 year.
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Affiliation(s)
- Mohammed Alcharakh
- Research Assistant, Hematology Department of Medicine, University of Arizona, AZ, USA
| | - Seongseok Yun
- Department of Medicine, University of Arizona, AZ, USA
| | - Yimin Dong
- Department of Pathology, University of Arizona, AZ, USA
| | - Nicole D Vincelette
- Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, MN, USA
| | - Madiha Daud
- Research Assistant, Hematology Department of Medicine, University of Arizona, AZ, USA
| | - Saima Manzoor
- Research Assistant, Hematology Department of Medicine, University of Arizona, AZ, USA
| | - Irbaz Bin Riaz
- Research Assistant, Hematology Department of Medicine, University of Arizona, AZ, USA
| | - Faiz Anwer
- Department of Medicine, University of Arizona, AZ, USA
- Division of Hematology, Oncology, Blood & Marrow Transplantation, University of Arizona, Tucson, AZ 86721, USA
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