Two cell-based modalities can target pHLA-expressing tumors: T cell receptors (TCRs) or TCR-mimetic (TCRm) antibodies reformatted as chimeric antigen receptors (CARs)...Insufficient TCR-T cell durability was overcome by coengaging 41BB or IL-2 signaling pathways, thereby enhancing tumor control in vivo. These data establish differential activities of human TCR-T and CAR-T cells targeting the same pHLA and inform the development of optimal targeting strategies to induce durable clinical responses.
13 days ago
Journal
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IL2 (Interleukin 2) • MAGEA4 (Melanoma antigen family A, 4)
P1/2, N=33, Terminated, Sanofi | Active, not recruiting --> Terminated; Early discontinuation based on strategic sponsor decision not driven by any safety concerns
This constituted only the second approval of a cell therapy in a solid tumor following lifileucel in melanoma and demonstrated the potential of cell therapies in sarcomas...However, the broader application of these therapies is hindered by the lack of targetable sarcoma-restricted immunogenic epitopes, spatiotemporal intratumoral heterogeneity, and a profoundly immunosuppressive tumor microenvironment that impedes effector-cell trafficking, expansion and persistence. While cell therapies hold promise for integration into precision medicine approaches for sarcomas, their successful implementation will require careful evaluation of clinical feasibility, logistical considerations and cost-effectiveness to optimize patient outcomes.
P1, N=22, Active, not recruiting, University Health Network, Toronto | Trial completion date: Sep 2025 --> Nov 2026 | Trial primary completion date: Sep 2025 --> Nov 2026
2 months ago
Trial completion date • Trial primary completion date
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HLA-A (Major Histocompatibility Complex, Class I, A) • CTAG1B (Cancer/testis antigen 1B)
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cyclophosphamide • fludarabine IV • mipetresgene autoleucel (TBI-1301)