Phase 3 study for people with Breast Cancer
Recruiting Phase 3
This trial at a glance
Where this trial is running
| Site | City | State or country | Status at this site |
|---|---|---|---|
| Blacktown Hospital | Blacktown | NSW | Recruiting |
| Royal North Shore Hospital | St Leonards | NSW | Recruiting |
| Lyell McEwin Hospital | Elizabeth Vale | SA | Recruiting |
| Monash Health | Clayton | VIC | Recruiting |
| Maroondah hospital;Oncology clinical trials | Ringwood | VIC | Recruiting |
voxsanity.com.au · trial sites from public registries · registry record synced 13 October 2026 · not medical advice
Who can join
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:
* Women or men with histologically or cytologically confirmed carcinoma of the breast
* Documented ER-positive and/or progesterone receptor-positive tumor according to American Society of Clinical Oncology/College of American Pathologists (ASCO/CAP) guidelines
* Documented HER2-negative tumor according to ASCO/CAP guidelines
* De-novo HR+ , HER2- ABC, or, alternatively, relapsed HR+ , HER2- ABC after at least 2 years of standard neoadjuvant/adjuvant endocrine therapy without disease progression during that treatment and disease-free interval of at least 1 year since the completion of that treatment
* Participants who have bilateral breast cancers which are both HR-positive and HER2-negative
* Confirmation of biomarker eligibility
* Consent to provide fresh or archival tumor tissue specimen
* Measurable disease per Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v1.1)
* Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1
* Adequate hematologic and organ function within 14 days prior to initiation of study treatment
Exclusion Criteria:
* Pregnant or breastfeeding, or intention of becoming pregnant during the study or within the time frame in which contraception is required
* Metaplastic breast cancer
* Any prior systemic therapy for locally advanced unresectable or metastatic breast cancer
* Type 2 diabetes requiring ongoing systemic treatment at the time of study entry; or any history of Type 1 diabetes
* Any history of leptomeningeal disease or carcinomatous meningitis
* Known and untreated, or active CNS metastases. Participants with a history of treated CNS metastases are eligible
* Active inflammatory or infectious conditions in either eye or history of idiopathic or autoimmune-associated uveitis in either eye
* Symptomatic active lung disease
* History of or active inflammatory bowel disease
* Any active bowel inflammation
* Prior hematopoietic stem cell or bone marrow transplantation
* Treatment with strong cytochrome P450 (CYP) 3A4 inhibitors or strong CYP3A4 inducers within 4 weeks or 5 drug-elimination half-lives, prior to initiation of study treatment
Dates on the record
Results, publications and the official record
- No results are posted on the official record yet.
- No publications are listed on the official record yet.
- Official record and contacts on ClinicalTrials.gov – contact details for each site are kept there, and are not copied onto this page.
Sources and dates
- ClinicalTrials.gov – the record this page reformats
- ClinicalTrials.gov processing date: 6 October 2026.
- This page last checked by Voxsanity: 13 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.