DE-iPTV radiotherapy for breast cancer that has spread to the brain in patients not eligible for SRS
Official title: BEAT-Breast - Improving Outcomes for Breast Cancer Patients With Brain Metastases: a Pilot Nonrandomised Single Arm Phase 2 Clinical Trial in Patients With Primary Breast Cancer With Brain Metastases Who Are Not Suitable for Stereotactic Radiotherapy
Run by Imperial College London · NCT06611306 · Data updated 2026-11-12
This trial tests a dose-escalated internal PTV radiotherapy approach (DE-iPTV) for adults with breast cancer brain metastases who can’t have stereotactic radiotherapy, to see if it can be delivered safely and whether it improves quality of life.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 16 Years to 100 Years |
| Sex | All |
| Enrollment | 42 (estimated) |
| Sponsor | Imperial College London Academic / other |
| Locations | 2 sites (London, London and 1 other locations) |
| Status | Recruiting |
| Started | June 1, 2026 |
| Main results expected | December 2027 |
| Study ends | June 2028 |
| Registry record updated | October 8, 2026 |
| Trial ID | NCT06611306 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (16+) with breast cancer and brain metastases who are not suitable for stereotactic radiotherapy and are candidates for WBRT in the UK.
✕Probably not a fit
Patients whose brain metastases do not respond to DE-iPTV or who experience unacceptable toxicity may not experience a HRQoL benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This interventional study aims to determine the feasibility of delivering dose-escalated internal PTV radiotherapy (DE-iPTV) to brain metastases from breast cancer in patients who are not suitable for stereotactic radiotherapy. Participants will receive five radiotherapy fractions and complete weekly health-related quality of life assessments plus steroid diaries, with MRI follow-up at 8, 12, and 24 weeks. An exploratory biomarker component is included. The study also investigates the impact of DE-iPTV on lesion control, patient quality of life, and steroid use, comparing outcomes to the expected course with conventional WBRT. Eligible participants are adults in the UK with confirmed brain metastases, preserved performance status, and life expectancy over 3 months.
Why it matters
Potential benefit: If successful, DE-iPTV could improve tumor control and quality of life while reducing exposure to normal brain tissue compared with standard whole-brain radiotherapy.
How similar studies have gone: Other approaches to dose-escalated or targeted brain radiotherapy have shown promise in limited settings, but this exact DE-iPTV approach in this population is novel/untested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria 1. Written (signed and dated) informed consent and be capable of co-operating with treatment and follow-up 2. Adult (aged 16+) patients, resident in the United Kingdom. 3. Histologically confirmed primary breast cancer with brain metastases on MRI imaging 4. The treating oncologist considers whole-brain radiotherapy to be the most suitable treatment outside of the trial. 5. Eastern Cooperative Oncology Group Performance status 0, 1 or 2 6. Able to respond to question about their quality of life, symptoms, and side effects remotely (via telephone assessments 7. Life expectancy from extra-cranial disease \>3 months Exclusion Criteria 1. Leptomeningeal disease 2. "Miliary" pattern of metastases: patients with over 15 metastases are excluded (clinician-based assessment) 3. Cystic metastases 4. Previous whole or partial brain radiotherapy (previous surgery or SRS is acceptable) 5. Plan for hippocampal-sparing whole brain radiotherapy. 6. Unable to give informed consent. 7. Prognosis less than 3 months 8. Pregnant or nursing women 9. Unable to complete a brain MRI and/or known allergy to gadolinium.
Where it's running
-
Imperial College London
London, London, United Kingdom Recruiting -
University of Oxford Cancer and Haematology Centre | Churchill Hospital Headington, Oxford,
Oxford, United Kingdom Recruiting
Study contacts
- Study coordinator: Lillie Pakzad-Shahabi, BSc MSc
- Email: beat-breast@imperial.ac.uk
- Phone: 02033118427
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.