AI-assisted contouring for breast cancer radiation treatment
Official title: LOCATOR - Locally Optimised Contouring With AI Technology for Radiotherapy
Run by Royal North Shore Hospital · NCT06546592 · Data updated 2026-11-12
This study is testing if using AI to help outline areas for radiation treatment in breast cancer patients is just as good and faster than having doctors do it by hand.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 444 (estimated) |
| Sponsor | Royal North Shore Hospital Academic / other |
| Drugs / interventions | radiation |
| Locations | 3 sites (Dubbo, New South Wales and 2 other locations) |
| Status | Recruiting |
| Started | February 11, 2025 |
| Main results expected | February 1, 2026 |
| Study ends | April 30, 2030 |
| Registry record updated | January 29, 2026 |
| Trial ID | NCT06546592 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults aged 18 and older who are scheduled for treatment of primary breast malignancy and have an ECOG performance status of 0-2.
✕Probably not a fit
Patients under 18 years of age or those unable to understand consent documents may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
LOCATOR is a multicentre phase II non-inferiority randomised controlled trial that compares AI-assisted contouring using in-house LOCATOR software to fully manual contouring by radiation oncologists for breast cancer patients. The study aims to determine if AI-assisted contouring is of comparable quality and whether it saves time for oncologists. Patients will be randomly assigned to receive either AI-assisted or manual contouring, with the primary endpoint focusing on the quality of the contours as assessed by the MD Anderson Contouring Grade Scale. Secondary endpoints include geometric accuracy, dosimetric differences, and a cost-benefit analysis of the AI contouring tool.
Why it matters
Potential benefit: If successful, this approach could enhance the efficiency and accuracy of radiation therapy for breast cancer patients.
How similar studies have gone: Other studies have shown promise in using AI for contouring in radiation therapy, indicating a growing interest in this innovative approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * 18 years and older who are planned for primary breast malignancy * ECOG performance 0-2 * Ability to understand and willingness to sign a written informed consent document * The target volume must be able to be objectively reviewed by current published national or international clinical guidelines Exclusion Criteria: * Patients under 18 years of age * Patients unable to understand consent documents
Where it's running
-
Western Cancer Centre Dubbo
Dubbo, New South Wales, Australia Recruiting -
Central West Cancer Centre
Orange, New South Wales, Australia Recruiting -
Department of Radiation Oncology, Royal North Shore Hospital
St Leonards, New South Wales, Australia Recruiting
Study contacts
- Study coordinator: Joseph Chan, BSc MBBS PhD FRANZCR
- Email: joseph.chan@health.nsw.gov.au
- Phone: 94631300
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
FAPI-guided radiotherapy with cadonilimab plus chemo for colorectal cancer limited to the peritoneum
Aims to see if adding targeted radiotherapy and cadonilimab immunotherapy to standard second-line chemotherapy helps adults with colorectal cancer that’s spread only to the peritoneum.
-
Pelvic ultra-hypofractionated radiotherapy after surgery for high-risk endometrial cancer
This trial tests whether giving 27.5 Gy in five sessions of pelvic radiotherapy after surgery is safe and feasible for high-risk endometrial cancer patients.
-
Radiation-related heart damage in locally advanced NSCLC tested with PET-CT
This study tests whether PET-CT imaging with 18F-Flurpiridaz can detect early radiation-related heart damage in adults with locally advanced non-small cell lung cancer receiving standard chemoradiation.
-
Seeing what cancer patients eat during radiation treatment using a mobile food diary
This study tests whether patients undergoing radiation therapy can consistently use a mobile food diary app to log their daily meals.
-
CAIX PET/CT–guided radiation for clear cell kidney cancer
This trial will try using CAIX-targeted PET/CT scans plus FDG PET/CT to guide focused stereotactic radiation alongside standard targeted therapy and anti‑PD‑1 immunotherapy for adults with recurrent or metastatic clear cell kidney cancer.
-
Radiation therapy options compared for newly diagnosed gynecologic cancers
This study tests whether proton therapy works as well as conventional photon therapy for endometrial and cervical cancers.
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.