Some patients with brain tumors receive standard radiation to help prevent tumor growth. Although standard radiation kills tumor cells, it can also damage normal tissue in the process and lead to more side effects. This research study is looking at a different form of radiation called proton radiotherapy which helps spare normal tissues while delivering radiation to the tumor or tumor bed. Proton techniques irradiate 2-3 times less normal tissue then standard radiation. This therapy has been used in treatment of other cancers and information from those other research studies suggests that this therapy may help better target brain tumors then standard radiation.
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Endocrine Dysfunction
Timeframe: 3- and 5- years post radiation treatment
Neurocognitive Sequelae
Timeframe: From the start of radiation treatment (baseline) to study completion. Participants were assessed annually up to 5 years following treatment completion. The median follow-up is 4.7 years.