Could shrinking radiation targets improve life for brain cancer patients?
NCT ID NCT06719440
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
The BELGICA trial is testing whether giving radiation in a more focused way to people with glioblastoma can reduce side effects and improve quality of life without shortening survival. About 347 newly diagnosed patients will be randomly assigned to receive either standard or reduced radiation margins around the tumor. The study aims to find a safer way to deliver radiotherapy while maintaining its effectiveness.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Radiotherapy
- What this could lead to
- If successful, this could lead to a new standard of care that reduces brain radiation side effects and improves quality of life for glioblastoma patients.
- What could go wrong
- This is a Phase NA trial with 347 participants. The smaller radiation field might not control the tumor as well, potentially reducing survival. Results are not guaranteed.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 347 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2025
- Expected to finish
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Oct 2031
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Participants capable of giving informed consent * Age \>= 18 y.o. * WHO performance status 0-2 * Newly diagnosed glioblastoma (Histologically proven glioblastoma per WHO 2021 classification based on biopsy or resection ) * Indication of chemoradiotherapy confirmed by multidisciplinary tumour board Exclusion Criteria: * Participation in a competing trial * Known contraindication to undergo MRI scans
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Get notified about this study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
23 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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AZ Delta
RECRUITINGRoeselare, 8800, Belgium
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AZ Groeninge
RECRUITINGKortrijk, 8500, Belgium
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AZ Sint Jan
RECRUITINGBruges, 8000, Belgium
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AZ Sint Maarten
RECRUITINGMechelen, 2800, Belgium
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AZ Sint-Lucas
RECRUITINGGhent, 9000, Belgium
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CH Mouscron
NOT_YET_RECRUITINGMouscron, 7700, Belgium
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CHR Verviers
RECRUITINGVerviers, 4800, Belgium
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CHU Liège
RECRUITINGLiège, 4000, Belgium
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CHU UCL Namur - Sainte Elisabeth
RECRUITINGNamur, 5000, Belgium
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Chu Helora
RECRUITINGLa Louvière, 7100, Belgium
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Cliniques de l'Europe
RECRUITINGUccle, 1180, Belgium
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Cliniques universitaires Saint-Luc
RECRUITINGBrussels, 1200, Belgium
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EpiCURA
RECRUITINGBaudour, 7331, Belgium
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Grand Hôpital de Charleroi
RECRUITINGGilly, 6060, Belgium
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Hôpital André Vésale - HUmani
RECRUITINGMontigny-le-Tilleul, 6110, Belgium
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Institut Jules Bordet
NOT_YET_RECRUITINGBrussels, 1070, Belgium
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JESSA Ziekenhuis
RECRUITINGHasselt, 3500, Belgium
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Olv Azorg
NOT_YET_RECRUITINGAalst, 9300, Belgium
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UZ Brussel
NOT_YET_RECRUITINGBrussels, 1090, Belgium
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UZ Gent
NOT_YET_RECRUITINGGhent, 9000, Belgium
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UZ Leuven
RECRUITINGLeuven, 3000, Belgium
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ZAS Augustinus
RECRUITINGWilrijk, 2610, Belgium
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Ziekenhuis Oost-Limburg (ZOL)
RECRUITINGGenk, 3600, Belgium
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can an existing drug boost bevacizumab against recurrent brain cancer?
- One extra radiation dose after standard brain cancer therapy: can it boost the immune system?
- Radioactive tracer lights up Oxygen-Starved brain tumors
- Can a common virus vaccine help fight brain cancer?
- Radioactive tiles target brain tumors in frail patients