Automated Breast Radiation Therapy Using an MR-Guided Process (Auto Breast RT)

March 3, 2026 updated by: University Health Network, Toronto
In the proposed research study, we are investigating the feasibility of integrating automated planning tools to MR images acquired using a novel MR-guided linac, for on-line adaptive radiation treatment. However, these on-line automation tools require further technical refinement and clinical validation. The goal of this research proposal is to develop an on-line MR-guided radiation therapy process for adapting breast IMRT treatment. Such an approach will provide early stage breast cancer patients timely access to high-quality adaptive treatments without exposure to additional ionizing radiation.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

63

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M5G 2M9
        • Princess Margaret Cancer Centre

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients who will receive standard two-field tangential whole breast radiation therapy with dose prescription of 4240 cGy in 16 fractions, 5000 cGy in 25 fractions or 4000 cGy in 16 fractions.
  • Female patients with any stage of breast cancer.
  • Patients with prior treatment such as surgery or chemotherapy for any type of cancer.
  • Able to provide a written informed consent.
  • ≥ 18 years of age.

Exclusion Criteria:

  • Patients who will not receive 4240 cGy in 16 fractions, 5000 cGy in 25 fractions, or 4000 cGy in 16 fractions
  • Males.
  • Patients who received partial breast radiation and not the standard dose.
  • Patients who are unable to provide informed consent.
  • < 18 years of age.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: IMRT + CT + MR scan
Other: IMRT + CT + MR scan

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Time between planning of Radiation treatment and the start of radiotherapy
Time Frame: 3 years
3 years
The effect of breathing on the position of the heart and lung in treatment plans
Time Frame: 3 years
3 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Health Network, Toronto

Collaborators

Princess Margaret Hospital, Canada

Investigators

  • Principal Investigator: Robert Dinniwell, M.D., Princess Margaret Cancer Centre
  • Principal Investigator: Tom Purdie, Physicist, Princess Margaret Cancer Centre

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 1, 2013

Primary Completion (Actual)

January 27, 2026

Study Completion (Actual)

January 27, 2026

Study Registration Dates

First Submitted

June 11, 2013

First Submitted That Met QC Criteria

November 25, 2013

First Posted (Estimated)

December 3, 2013

Study Record Updates

Last Update Posted (Actual)

March 6, 2026

Last Update Submitted That Met QC Criteria

March 3, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 12-5181

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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