Radiation before brain surgery kept treated spots under control
Original title: Three-fraction preoperative stereotactic radiotherapy for resectable brain metastases: the phase 2 STEP trial.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This was tested in people. That is the most reliable kind of research we share.
It was tested in people in a mid stage trial, but it is not standard care yet.
The short version
In a trial of 63 people, radiation given before brain surgery kept every treated spot under control at 6 months.
What was studied. Doctors tested radiation given before brain surgery, instead of after, for cancer that had spread to the brain. Of 73 people checked, 63 got both the three radiation doses and the surgery.
What they found. At 6 months, the treated spot stayed under control in all of them, 100%. At 12 months that rate was 96.4%, and no one got cancer in the fluid around the brain. Radiation damage at the treated spot happened in 7% within the first year.
What this means, and what it doesn't
What it could mean: For some people who need brain surgery, the order of care might change. Giving radiation first may lower some risks and skip the wait after surgery. This is still being studied, so ask your own team what fits you.
What it doesn't mean: This does not mean radiation before surgery is proven better. It was a mid stage trial with one group and no comparison group. Everyone got the same plan, so we cannot say it beats the usual order. It is not standard care today, and it is not a promise of a cure. Larger trials that compare the two orders are still going on.
Source: PubMed, October 30, 2026 · Read the original
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