Anterior Temporal Lobectomy in Temporal Glioblastoma

The ATLAS/NOA-29 trial is a prospective, multicenter, phase III randomized controlled study evaluating whether anterior temporal lobectomy (ATL), a standardized resection technique adapted from epilepsy surgery, improves clinical outcomes in patients with newly diagnosed glioblastoma of the anterior temporal lobe compared to conventional gross-total resection (GTR). The rationale is based on the concept of glioblastoma as a diffusely connected tumor network, with infiltrative spread extending beyond MRI-detectable tumor margins. ATL offers a reproducible supramarginal resection approach within anatomical boundaries that are routinely respected in epilepsy surgery. Patients are randomized intraoperatively in a 1:1 ratio following histopathological confirmation via intraoperative frozen section procedure. The trial's primary objective is to demonstrate superiority of ATL in overall survival (OS), while confirming non-inferiority in health-related quality of life (QoL), measured by the global health status scale of the European Organisation for Research and Treatment of Cancer (EORTC) - Quality of Life Questionnaire Core 30 (QLQ-C30). Secondary outcomes include progression-free survival (PFS), seizure control, neurocognitive functioning, and longitudinal assessments of selected EORTC QLQ-C30 and BN20 domains. A total of 178 patients will be enrolled over three years, with a minimum follow-up of three years. An interim safety analysis after inclusion of 57 patients will assess f…

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