New radiation delivery method for newly diagnosed brain cancer

Plain-English translation of NCT07452458 on ClinicalTrials.gov ↗ · Source last updated September 2026 · Translation generated October 2026 · How we translate trials

What is this trial?

This trial compares two ways of treating newly diagnosed glioblastoma, a serious type of brain cancer. One group receives standard radiation therapy combined with chemotherapy (). The other group receives temporally-modulated pulsed radiation therapy (a newer method that delivers radiation in short pulses with breaks in between) also combined with the same chemotherapy. The main goal is to see if this newer radiation approach helps protect thinking and memory skills better than standard treatment.

Glioblastoma is an aggressive brain cancer, and while current treatments help, they can affect patients' thinking, memory, and quality of life over time. Researchers want to know if delivering radiation in a different pattern—with pauses between pulses—might be gentler on the brain while still fighting the cancer effectively.

Do you qualify?

You likely qualify if…

you have been newly diagnosed with glioblastoma (a specific type of brain cancer) that has not received prior radiation
you have had surgery to remove the tumor (a biopsy alone is not enough)
you are at least 18 years old
you are in generally good health with a Karnofsky Performance Status score of 70 or higher (meaning you can do most of your normal activities)
you are fluent in English or French Canadian, since the study includes thinking and memory tests
your tumor has specific genetic features (IDH wildtype and MGMT unmethylated status confirmed by the research team)

You likely don't qualify if…

you have had prior radiation therapy to the head or brain
you have signs that cancer has spread outside the brain or into the protective membranes around the brain
you have had previous chemotherapy or other treatments specifically for glioblastoma (other than surgery or certain approved devices like Gliadel wafers)
you have very low blood counts, liver problems, or kidney problems that would make treatment unsafe
you are pregnant or breastfeeding

What participation looks like

You would receive either standard radiation therapy or the newer pulsed radiation therapy, both given 5 days a week for 3 to 6 weeks, paired with daily chemotherapy pills during that same period. After this initial phase, you would take the chemotherapy pills for 5 days every month for about 6 months. Throughout the trial, you would have regular check-in visits with scans (MRI or CT), blood tests, and thinking and memory assessments to track how you are doing. The study also asks about your quality of life and daily functioning to see whether the new radiation method affects your ability to think clearly and remember things.

New radiation delivery method for newly diagnosed brain cancer

What is this trial?

Do you qualify?

What participation looks like

Trial locations(54 sites)