Clinical trial Recruiting at 1 site Observational Ages 18 and up

Developing a markerless tracking method for real-time tumor motion measurement during radiation therapy

Official title: LEARN: Learning Environment for Artificial Intelligence in Radiotherapy New Technology

Run by University of Sydney · NCT05184790 · Data updated 2026-11-12

This study is testing a new way to track tumor movement during radiation therapy without using markers, to see if it can help doctors target the treatment more accurately for cancer patients.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment300 (estimated)
SponsorUniversity of Sydney
Academic / other
Drugs / interventionsradiation
Locations4 sites (Saint Leonards, New South Wales and 3 other locations)
StatusRecruiting
StartedFebruary 28, 2023
Main results expectedJanuary 31, 2028
Study endsJanuary 31, 2028
Registry record updatedMay 19, 2026
Trial IDNCT05184790 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults receiving radiation therapy for specific cancers, including brain, breast, kidney, and prostate cancers, or cardiac arrhythmias.

Probably not a fit

Patients under 18 years of age or those not receiving radiation therapy at participating centers will 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

This observational study aims to create a whole-of-body markerless tracking method to measure tumor and organ motion during radiation therapy. By utilizing routinely acquired patient data from 300 individuals with various cancers, the study will train, test, and validate this tracking method. The data will be processed through a clinical trial learning system that enhances the accuracy of the tracking software with each patient. The primary goal is to improve targeting accuracy in radiation therapy through advanced imaging techniques.

Why it matters

Potential benefit: If successful, this method could significantly enhance the precision of radiation therapy, leading to better treatment outcomes for patients.

How similar studies have gone: While the approach of using markerless tracking in radiation therapy is innovative, similar studies have shown promise in improving treatment accuracy.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Will receive radiation therapy for brain, breast, head and neck, kidney, liver, pancreas, prostate, spine cancer treatment or cardiac arrhythmia treatment at a participating centre.
* Will receive CT planning, and a cone beam CT scan for at least one fraction of radiation therapy.
* Will receive intrafraction x-ray imaging for the liver, pancreas, prostate, spine cancer treatment or cardiac arrhythmia treatment. As intrafraction imaging is not common standard of care for brain, breast, head and neck and kidney cancer treatments there is no requirement to have intrafraction x-ray imaging data for these anatomical sites.
* Provides written informed consent.

Exclusion Criteria:

* Less than 18 years of age

Where it's running

  • Royal North Shore Hospital
    Saint Leonards, New South Wales, Australia
    Recruiting
  • Princess Alexandra Hospital
    Woolloongabba, Queensland, Australia
    Not yet recruiting
  • Alfred Health
    Melbourne, Victoria, Australia
    Not yet recruiting
  • Peter MacCallum Cancer Centre
    Melbourne, Victoria, Australia
    Not yet 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.