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<p>Glioblastoma remains one of the most aggressive primary brain tumors in adults, with a survival rarely exceeding 15 months despite multimodal therapy. Novel immunotherapeutic strategies, particularly chimeric antigen receptor T-cell therapy, have emerged as promising approaches to overcome the limitations of conventional treatments. This review summarizes recent early-phase clinical trials investigating locoregional chimeric antigen receptor T-cell delivery in recurrent glioblastoma and highlights key considerations for multidisciplinary neuro-oncology teams involved in this evolving therapeutic paradigm. Phase I studies of intratumoral, intracavitary, intraventricular, or combined delivery routes have demonstrated technical feasibility and safety, with most adverse events being manageable. Dual-route delivery may enhance chimeric antigen receptor T-cell distribution and produce early radiographic and clinical responses in selected patients. However, therapeutic durability remains limited by tumor heterogeneity, antigen loss, and the immunosuppressive tumor microenvironment. Multidisciplinary care teams play a critical role in catheter and reservoir placement, infusion planning, and management of neuroinflammatory toxicities. Although current findings are preliminary, ongoing optimization of target selection, dosing strategies, and combination therapies may expand treatment options for recurrent glioblastoma and further integrate immunotherapy into contemporary neuro-oncology care.</p>

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Recent Locoregional CAR T-Cell Trials for the Treatment of Recurrent Glioblastoma: Implications for Neuro-Oncology Practice

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月22日

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  • Manina Maja Etter,
  • Kevin Akeret,
  • Raphael Guzman,
  • Luigi Mariani,
  • Gregor Hutter,
  • Michael Lim

摘要

Glioblastoma remains one of the most aggressive primary brain tumors in adults, with a survival rarely exceeding 15 months despite multimodal therapy. Novel immunotherapeutic strategies, particularly chimeric antigen receptor T-cell therapy, have emerged as promising approaches to overcome the limitations of conventional treatments. This review summarizes recent early-phase clinical trials investigating locoregional chimeric antigen receptor T-cell delivery in recurrent glioblastoma and highlights key considerations for multidisciplinary neuro-oncology teams involved in this evolving therapeutic paradigm. Phase I studies of intratumoral, intracavitary, intraventricular, or combined delivery routes have demonstrated technical feasibility and safety, with most adverse events being manageable. Dual-route delivery may enhance chimeric antigen receptor T-cell distribution and produce early radiographic and clinical responses in selected patients. However, therapeutic durability remains limited by tumor heterogeneity, antigen loss, and the immunosuppressive tumor microenvironment. Multidisciplinary care teams play a critical role in catheter and reservoir placement, infusion planning, and management of neuroinflammatory toxicities. Although current findings are preliminary, ongoing optimization of target selection, dosing strategies, and combination therapies may expand treatment options for recurrent glioblastoma and further integrate immunotherapy into contemporary neuro-oncology care.