New hope in brain cancer treatment: Tumor spread slowed down

US researchers have developed a new treatment approach that slows the spread of brain cancer, according to the study reported in the article. The scientists say they have overcome the biggest obstacle that previously blocked this type of therapy, though the article does not specify the compound, trial size or effect size. The finding matters because gliomas and other brain tumors are notoriously difficult to treat once they infiltrate surrounding tissue, and slowing that spread is a key goal of neuro-oncology research. What to watch next: whether the early results hold up in larger clinical trials and how regulators view the approach.