Study for people with Breast Cancer

Recruiting Not a phased study

Sources: ClinicalTrials.gov Checked: 11 October 2026 Not medical advice

This trial at a glance

Status Recruiting
Phase Not a phased study
Sponsor University Health Network, Toronto
Registry number NCT05592938
Started 27 June 2023 Today 16 October 2026 Estimated completion 27 June 2027

Where this trial is running

Trial sites and the status recorded for each
SiteCityState or countryStatus at this site
Peter MacCallum Cancer Centre Melbourne VIC Recruiting

voxsanity.com.au · trial sites from public registries · registry record synced 11 October 2026 · not medical advice

Who can join

Age 18 Years to 99 Years
Sex Female participants only
Healthy volunteers Not accepted
Enrolment target 171

The official eligibility criteria

Registry text, reproduced exactly. These are the words the trial's sponsor published on ClinicalTrials.gov. They have not been edited, shortened or rewritten, and they are written for researchers rather than for patients.

Inclusion Criteria:

* Age \> 18 years

* In-breast recurrence or new primary (ductal carcinoma in situ (DCIS) or invasive carcinoma)

* Tumour \<3.0 cm in greatest diameter on pathologic examination, including both invasive and non-invasive components

* \>5 years after completion of prior adjuvant whole or partial breast radiotherapy (prior nodal radiotherapy permitted)

* Clinically node negative

* Negative margins (no tumour on ink)

* Recovered from surgery with the incision completely healed and no signs of infection

Exclusion Criteria:

* Multicentric disease (patients with multifocal breast cancer in the same quadrant are eligible)

* Tumour histology limited to lobular carcinoma only

* T4 disease

* Node positive or distant metastatic disease

* Serious non-malignant disease (cardiovascular, pulmonary, systemic lupus erythematosus, scleroderma), which would preclude radiation treatment

* Currently pregnant or lactating

* Presence of an ipsilateral breast implant or pacemaker

* Unable to commence radiation within 16 weeks of breast-conserving surgery (or last surgical procedure on the breast) or within 12 weeks from last cycle of adjuvant chemotherapy

* Unable to clearly define the surgical cavity (oncoplastic procedures are permitted provided the tumor bed is well delineated with surgical clips).

* Psychiatric disorders which would preclude obtaining informed consent or adherence to protocol

* Grade II or more late skin toxicity from prior radiation evaluated and graded using CTCAE v5.0

* Current or prior diagnosis of bilateral breast cancer

Dates on the record

Started 27 June 2023
Estimated completion 27 June 2027
Registry last updated 17 July 2026
Checked by Voxsanity 11 October 2026

Results, publications and the official record

Sources and dates

  • ClinicalTrials.gov – the record this page reformats
  • ClinicalTrials.gov processing date: 17 July 2026.
  • This page last checked by Voxsanity: 11 October 2026.

Voxsanity reformats data from public registries into this layout. It does not edit, interpret or add to what the registry published.

Not medical advice.

Individual trial records are refreshed on a rolling basis rather than all at once, so a record may be up to several weeks old. Each trial page and trial card shows the date its own record was last synced. Where a record has lagged, its status, sites and enrolment can differ from the current registry state in either direction, so check the registry link on the trial page before acting on them.

Letter for your doctor

A one-page summary of this trial to print or email to your GP. It carries the registry's own record of the trial and its eligibility criteria, and nothing Voxsanity has written about whether it suits you.