AI-assisted contouring for breast cancer radiation treatment

LOCATOR - Locally Optimised Contouring With AI Technology for Radiotherapy

NA · Royal North Shore Hospital · NCT06546592

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

PhaseNA
Study typeInterventional
Enrollment444 (estimated)
Ages18 Years and up
SexAll
SponsorRoyal North Shore Hospital (other)
Drugs / interventionsradiation
Locations3 sites (Dubbo, New South Wales and 2 other locations)
Trial IDNCT06546592 on ClinicalTrials.gov

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.

Who should consider this trial

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.

Not a fit: Patients under 18 years of age or those unable to understand consent documents may not benefit from this study.

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 performed: Other studies have shown promise in using AI for contouring in radiation therapy, indicating a growing interest in this innovative approach.

Eligibility criteria

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 this trial is running

Dubbo, New South Wales and 2 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Contouring, Segmentation, Radiation Therapy, Artificial Intelligence, Deep Learning

Last reviewed 2026-05-15 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.