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http://dx.doi.org/10.3324/haematol.2023.284917DOI Listing

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Purpose: Orvacabtagene autoleucel (orva-cel; JCARH125), a CAR T-cell therapy targeting B-cell maturation antigen (BCMA), was evaluated in relapsed/refractory multiple myeloma (RRMM) patients in the EVOLVE phase 1/2 study (NCT03430011). We applied a modified piecewise model to characterize orva-cel transgene kinetics and assessed the impact of various covariates on its pharmacokinetics (PK).

Experimental Design: The population PK analysis included 159 patients from the EVOLVE study.

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Background: Multiple myeloma (MM) is an incurable plasma cell malignancy with increasing global incidence. Chimeric antigen receptor (CAR) T-cell therapy targeting BCMA has shown efficacy in relapsed or refractory MM, but it faces resistance due to antigen loss and the tumor microenvironment. Bispecific T-cell engaging (BITE) antibodies also encounter clinical challenges, including short half-lives requiring continuous infusion and potential toxicities.

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Background And Hypothesis: Teclistamab, a novel bispecific monoclonal antibody targeting CD3 and B-cell maturation antigen (BCMA), and chimeric antigen receptor T-cell (CAR-T) therapy are promising options for treating relapsed/refractory multiple myeloma (MM). However, the rates of acute kidney injury (AKI) associated with teclistamab remain inadequately characterized. This study aims to compare the incidence, severity, and outcomes of AKI between patients receiving teclistamab and CAR-T therapy.

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Optimized BCMA/CS1 bispecific TRuC-T cells secreting IL-7 and CCL21 robustly control multiple myeloma.

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Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, China.

Introduction: Challenges remain in reducing antigen escape and tumor recurrence while CAR-T cell therapy has substantially improved outcomes in the treatment of multiple myeloma. T cell receptor fusion construct (TRuC)-T cells, which utilize intact T cell receptor (TCR)-CD3 complex to eliminate tumor cells in a non-major histocompatibility complex (MHC)-restricted manner, represent a promising strategy. Moreover, interleukin-7 (IL-7) is known to enhance the proliferation and survival of T cells.

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Despite significant advancements, multiple myeloma (MM) remains incurable, and there is still a pressing need for new therapeutic strategies with highly selective mechanisms of action and balanced off-target toxicity. In recent years, the development of "off-the-shelf" bispecific antibodies (bsAbs) has significantly enhanced our ability to treat relapsed or refractory MM. Teclistamab, elranatamab (both BCMA × CD3), and talquetamab (GPRC5D × CD3) are approved for treating MM patients who have received at least 3 prior lines of therapy, including a proteasome inhibitor, an immunomodulatory drug, and an anti-CD38 monoclonal antibody.

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