Research on immunotherapy for glioblastoma is ongoing, with some studies suggesting promise for this treatment approach. However, the available headlines also mention immunotherapy being used for other types of cancer, such as colon, stomach, esophageal, and lung cancer, making it unclear what specific developments have been made for glioblastoma. The effectiveness of immunotherapy appears to be being explored in various clinical trials, with some studies investigating its use in combination with other treatments or its potential to enhance overall survival.