Comparing proton radiation and photon radiation for WHO grade 2 and 3 glioma
Original title: Proton vs. Photon Radiotherapy for Patients With WHO Grade 2-3 Glioma
How far along is this research?
This is a trial that is enrolling or has been updated. It is not a finding yet.
This study does not list a phase, and it is still being run in people to find an answer.
Status: Recruiting. It is looking for patients now. Talk to your care team about whether it fits you.
The trial team last updated this record on . Always check the trial page for the latest.
The short version
This trial is testing whether the type of radiation used changes how thinking and memory hold up after treatment.
Who this trial is for. This trial is for people with a WHO grade 2 or 3 glioma: A tumor that starts in the glial cells, the support cells of the brain and spinal cord. Gliomas are graded 1 to 4 by how fast they tend to grow. See the glossary who are getting radiation as part of their treatment. People are sorted at random into two groups. One group gets proton radiation. The other gets photon radiation.
Where it stands. This trial has not reported results. It is measuring how thinking and memory change over time after treatment, and comparing the two groups. The answer is not in yet.
What this means, and what it doesn't
What it could mean: Radiation to the brain can affect thinking and memory. Doctors do not yet know how much of that comes from the dose to the tumor area, and how much comes from the smaller dose that reaches nearby brain tissue. This trial is trying to learn if proton radiation changes that. Someone who fits this picture could ask their care team about it.
What it doesn't mean: This does not mean proton radiation is better for thinking and memory. That is the question being asked, not an answer. A trial is a test, not a proven treatment. Being in a trial is not a guarantee that it will help you. It is not a promise of a cure.
Source: ClinicalTrials.gov, August 6, 2026 · Read the original
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