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Updated: Jan 9, 2026

The Clinical Application of Tumor Treating Fields Therapy in Glioblastoma
Published on: April 16, 2019
[Tumor-Treating Fields Therapy for Pediatric Brain Tumors]
1Division of Neurosurgery, Tokyo Metropolitan Children's Medical Center.
Abstract:
Tumor-treating fields (TTF) are alternating electric fields applied to the brain through scalp arrays. Although TTF therapy has shown efficacy in adults with supratentorial high-grade glioma, its safety and efficacy in children remain unproven. Pediatric and adult high-grade gliomas differ genetically, but share clinical features that support trials in children. Recently, a pediatric case series using TTF has been reported, and a few prospective studies are underway. Because pediatric high-grade gliomas are rare and genetically diverse, these studies were designed as feasibility trials for various malignant brain tumors. Their primary goal is to confirm safety and feasibility; however, assessing the efficacy in each pediatric tumor subtype, including high-grade gliomas, is challenging. To address this issue, our clinical research team planned an investigator-initiated trial, specifically for pediatric supratentorial high-grade gliomas. The aim of this study was to expand the regulatory approval of TTF therapy in children by establishing safety and exploratory efficacy data supplemented by accumulated evidence in adults.
Insights
Tumor-treating fields (TTF) show promise for pediatric high-grade gliomas. This study aims to establish safety and efficacy data for TTF in children, expanding its use beyond adults.
Area of Science:
- Oncology
- Biomedical Engineering
- Pediatric Neuro-oncology
Background:
- Tumor-treating fields (TTF) are an FDA-approved therapy for adult glioblastoma.
- TTF's safety and efficacy in pediatric patients with brain tumors are not yet established.
- Pediatric and adult high-grade gliomas share clinical features, warranting investigation in children.
Purpose of the Study:
- To establish safety and exploratory efficacy data for TTF in pediatric supratentorial high-grade gliomas.
- To expand the regulatory approval of TTF therapy for pediatric brain tumor patients.
- To supplement existing adult data with evidence from pediatric trials.
Main Methods:
- An investigator-initiated clinical trial was planned for pediatric supratentorial high-grade gliomas.
- The trial focuses on assessing safety and feasibility in a pediatric population.
- Efficacy will be explored, building upon accumulated evidence from adult studies.
Main Results:
- This section is not applicable as the study is planned and results are not yet available.
- The study aims to generate preliminary safety and efficacy data.
- Exploratory data will be collected to support future larger trials.
Conclusions:
- TTF therapy holds potential for treating pediatric high-grade gliomas.
- Establishing safety and efficacy in children is crucial for expanding TTF's clinical application.
- This trial will provide essential data for pediatric neuro-oncology treatment strategies.
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