Clinical trial Recruiting at 2 sites Interventional Ages 16 to 100

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 typeInterventional
Ages16 Years to 100 Years
SexAll
Enrollment42 (estimated)
SponsorImperial College London
Academic / other
Locations2 sites (London, London and 1 other locations)
StatusRecruiting
StartedJune 1, 2026
Main results expectedDecember 2027
Study endsJune 2028
Registry record updatedOctober 8, 2026
Trial IDNCT06611306 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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.