Background: To date, there has been no large-scale, real-world study of the health-related quality of life outcomes for patients using tumor treating fields (TTFields) therapy for glioblastoma (GBM) treatment.
Methods: A survey was mailed to 2,815 patients actively using TTFields for treatment of GBM in the USA ( = 2,182) and Europe ( = 633). The survey included patient-reported demographic and clinical information, as well as EuroQol's EQ-5D-5L and visual analogue scale (EQ-VAS) overall health score.