New scan may sharpen radiation for Fast-Growing brain cancers

This completed Phase 2 trial tested whether a special PET/CT scan using 11C-methionine could help doctors better plan radiation therapy for people with glioblastoma, the most common and aggressive brain cancer. The study focused on patients whose tumors grew back quickly after surgery (rapid early progression). 33 participants received the scan, and their radiation plans were adjusted based on the results. The goal was to see if this approach could improve how long patients lived without their cancer worsening.