Tumor treating fields: a new approach to glioblastoma therapy

Abstract

Glioblastoma is an aggressive brain malignancy with poor outcomes. Current standard of care involves surgery, radiotherapy and chemotherapy. Even with optimal treatment, 5-year survival rates are low. Many patients are unable to tolerate the considerable side effects that therapy involves and suffer from low quality of life. Anti-mitotic tumor treating fields have shown potential in treating glioblastoma with data suggesting that they prolong disease-free survival and overall survival. Novocure has marketed a device that generates these fields via externally placed electrodes. Incorporation of electric field therapy into GBM treatment has been somewhat slow, due to concerns about cost, practicality of its usage from a patient perspective, and hesitation of the medical and scientific community to embrace its unconventional mechanism. However, clinical trials have demonstrated this therapy has relatively minor side effects and high patient compliance. In this review, we explore the current state of this technology and discuss the benefits and limitations of tumor treating fields.

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