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Improving treatments for brain metastases through advanced imaging

PET/MR imaging study of breast cancer brain metastases to quantify relationships between blood perfusion dynamics and uptake of pertuzumab

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12618000803291
Acronym
BoNSAI
Enrollment
20
Registered
2018-05-11
Start date
2018-06-01
Completion date
2020-05-15
Last updated
2018-06-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

This study is examining brain tumour blood flow and drug uptake in patients with brain tumours originating from breast cancer. Who is it for? You may be eligible for this study if you are aged 18 or over and have a history of breast cancer, with radiologically diagnosed metastatic brain disease. Study details All participants will have an intravenous infusion containing a chemical tracer used in a PET scan. On the day of administration, plus an additional one or two occasions in the following week, participants will have a PET-MR scan. The study aims to use imaging to examine the uptake of the chemical tracer in brain metastases originating from breast cancer. It will provide new information about how treatment could be affected by unique blood flow patterns in the brain.

Interventions

Breast cancer patients with radiologically confirmed brain metastases will be administered ONCE with up to 10mg of a pertuzumab-[89]Zr PET tracer, and 50mg of unconjugated pertuzumab (loading dose to minimise nonspecific uptake of the tracer) by intravenous infusion. A Registered Nurse will administer the pertuzumab under supervision of a Medical Officer. On the day of administration, and on 1-2 occasions during the following week, brain tumour uptake of the tracer will be quantified by PET-MR i

Breast cancer patients with radiologically confirmed brain metastases will be administered ONCE with up to 10mg of a pertuzumab-[89]Zr PET tracer, and 50mg of unconjugated pertuzumab (loading dose to minimise nonspecific uptake of the tracer) by intravenous infusion. A Registered Nurse will administer the pertuzumab under supervision of a Medical Officer. On the day of administration, and on 1-2 occasions during the following week, brain tumour uptake of the tracer will be quantified by PET-MR imaging. Imaging will be performed by an accredited Nuclear Medicine Technologist, with supervision by a Medical Officer.

Sponsors

The University of Queensland
Lead SponsorUniversity

Study design

Allocation
Non-randomised trial
Primary purpose
Diagnosis

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

- Adults at least 18 years of age - History of breast cancer with HER2 status confirmed according to standard diagnostic criteria - One or more new or recurrent metastatic brain tumour(s) diagnosed radiologically - Willing and able to tolerate multiple rounds of imaging - Willing and able to provide informed consent & attend appointments - Adequate kidney function (eGFR>30) for Gad-DTPA excretion

Exclusion criteria

- History of intolerance or hypersensitivity to pertuzumab - Leptomeningeal disease - Prior surgical resection of lesions in the same hemisphere within 4 weeks - Prior radiation treatment of proximal lesions - History of congestive heart failure or left ventricular dysfunction (LVEF <50%) - Active infection - Claustrophobia - Pregnant or breastfeeding now or in the near future

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026