Phase 1 study for people with Breast Cancer

Recruiting Phase 1

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

This trial at a glance

Status Recruiting
Phase Phase 1
Sponsor BeOne Medicines
Registry number NCT07222267
Started 11 December 2025 Today 16 October 2026 Estimated completion 30 September 2029

Where this trial is running

Trial sites and the status recorded for each
SiteCityState or countryStatus at this site
Blacktown Cancer and Haematology Centre Blacktown NSW Recruiting
Chris Obrien Lifehouse Camperdown NSW Recruiting
Cancer Research South Australia Adelaide SA Recruiting
Austin Health Heidelberg VIC Recruiting
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 and over
Sex Anyone, regardless of sex
Healthy volunteers Not accepted
Enrolment target 86

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:

* Part 1A: Participants with histologically or cytologically confirmed advanced, metastatic breast cancer and other solid tumors who have exhausted, are intolerant of all available standard of care therapies, and/or without available standard of care therapies.

* Part 1B and Part 2A: Participants with advanced breast cancer with 1 to 3 prior lines of systemic therapy in the metastatic setting. Prior lines in the advanced/ metastatic setting may not exceed 2 lines of chemotherapy (inclusive of antibody-drug conjugate with cytotoxic payload).

* Parts 2B and 2C: Participants with advanced breast cancer enrolled in regions where cyclin-dependent kinase 4/6 (CDK4/6) inhibitors are not approved and/or not available as the first-line treatment and who are CDK4/6 inhibitor treatment naïve and did not receive any previous systemic treatment for advanced disease.

* Participants with breast cancer must have histologically or cytologically confirmed advanced breast cancer at the time of most recent testing, based on American Society of Clinical Oncology (ASCO)/College of American Pathologists (CAP) guidelines.

* Female participants with metastatic breast cancer must be postmenopausal or receiving ovarian function suppression treatment.

* Measurable disease as assessed by Response Evaluation Criteria in Solid Tumors (RECIST) v 1.1.

* Stable Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1.

* Adequate organ function.

Exclusion Criteria:

* Prior exposure to KAT6A/B or KAT7 inhibitors/degraders.

* Patients with active leptomeningeal disease or uncontrolled, untreated brain metastasis.

* Participants with any malignancy ≤ 3 years before screening for the study except for the specific cancer under investigation in this study and any locally recurring cancer that has been treated curatively which in the opinion of the investigator is unlikely to require intervention during the study.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Dates on the record

Started 11 December 2025
Estimated completion 30 September 2029
Registry last updated 28 September 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: 28 September 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.