Can a single day of brain radiation match five days?
NCT ID NCT05050929
First seen Sep 21, 2026 · Last updated Sep 21, 2026
Summary
Researchers are testing whether a one-day course of targeted radiation works as well as the standard five-day course for people whose cancer has spread to the brain. The trial enrolls about 100 adults with brain metastases and a poor prognosis. Everyone receives precise, image-guided radiation aimed at all visible brain tumors, and the study compares how long patients live, how long they keep their daily functioning, and whether the tumors stay controlled.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- targeted radiation therapy to brain metastases, given either as a single high-dose treatment or split over five days
- What this could lead to
- If the one-day course works as well as the five-day course, patients with brain metastases could spend far less time traveling for treatment and start other care sooner.
- What could go wrong
- The trial is small and limited to patients with a poor prognosis, so results may not apply to everyone with brain metastases. A single high dose could also cause more short-term swelling or side effects than a split course.
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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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 100 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2022
- Expected to finish
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Dec 2027
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 to 100 years
- 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: Patients must fulfil all the following criteria to be eligible for admission to the study: * Age ≥ 18 * Pathological diagnosis of a non-hematopoietic malignancy * Brain metastases of any size * Any number of untreated or progressing, previously treated brain metastases that can all be contoured and targeted * Presence of extracranial disease * Diagnosis-Specific Graded Prognostic Assessment (DS-GPA) ≤ 2.0 (https://brainmetgpa.com/) or Graded Prognostic Assessment ≤ 2.0 (Appendix I) * Able to complete the EuroQOL (EQ-5D-5L) questionnaire * Willing and able to have regular imaging follow up * Feasible to start protocol treatment within 14 calendar days of participant enrolment * Karnofsky Performance Score (KPS) ≥ 50 Exclusion Criteria Patients who fulfill any of the following criteria are not eligible for admission to the study: * Inability to have a brain MRI. * WBRT less than 3 months prior to randomization * Disseminated leptomeningeal carcinomatosis (limited pachymeningeal disease is permitted) * Multiple sclerosis * Neurologically declining despite corticosteroids * Appropriate for surgery or stereotactic radiosurgery * Germ cell and primary brain tumours * Systemic lupus erythematosis, scleroderma, or other connective tissue disorders not in remission * Any other serious intercurrent illness or medical condition judged by the local investigator to compromise the patient's safety, preclude safe administration of the planned protocol treatment, or prevent the patient from being managed according to the protocol guidelines * Pregnancy * Potentially fertile men or women of childbearing potential who are unwilling to employ highly effective contraception
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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.
Contacts and locations
Locations
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BC Cancer - Abbotsford
Abbotsford British Columbia, British Columbia, Canada
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BC Cancer - Kelowna
Kelowna, British Columbia, V1Y5L3, Canada
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BC Cancer - Prince George
Prince George, British Columbia, V2M7E9, Canada
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BC Cancer - Surrey
Surrey, British Columbia, Canada
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BC Cancer - Vancouver
Vancouver, British Columbia, V5Z 4E6, Canada
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BC Cancer - Victoria
Victoria, British Columbia, Canada
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Other studies related to the condition(s) this trial covers.
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