Organoids to predict treatment outcomes for breast cancer metastases

Prospective Study to Correlate the Treatment Sensitivity of Patient-derived Organoids With Clinical Outcomes in Breast Cancer Patients With Brain and/or Extra-cranial Metastases

King's College London · NCT06468124

This project will try to grow mini-tumors (organoids) from people with breast cancer metastases to see if lab responses predict each patient’s response to radiation and chemotherapy.

Quick facts

Study typeObservational
Enrollment20 (estimated)
Ages18 Years and up
SexAll
SponsorKing's College London (other)
Drugs / interventionsimmunotherapy
Locations2 sites (London and 1 other locations)
Trial IDNCT06468124 on ClinicalTrials.gov

What this trial studies

The project will collect tissue from surgically resected or biopsied brain and extra‑cranial breast cancer metastases and generate patient‑derived organoids (PDOs). When organoids contain sufficient cells, investigators will expose them to increasing doses of radiotherapy and to the systemic treatments the patients received or will receive to measure dose‑response and IC50. Researchers will correlate PDO radio‑ and chemo‑sensitivity with patients’ clinical treatment responses and survival while patients continue standard clinical care. The pilot phase aims to enroll about 20 patients at two London hospital sites.

Who should consider this trial

Good fit: Adults (age >18) with breast cancer who are undergoing surgical resection or biopsy of brain or extra‑cranial metastases and who can give informed consent are ideal candidates.

Not a fit: Patients without resectable or biopsiable metastatic tissue, those unable to consent, or those whose tumor samples fail to grow organoids are unlikely to benefit directly.

Why it matters

Potential benefit: If successful, PDO testing could help personalize therapy by identifying which radiation or systemic treatments are most likely to work for an individual patient's metastases.

How similar studies have performed: Organoid-based drug testing has shown promising concordance with patient response in several cancer types and small breast cancer series, but its use to predict outcomes for metastatic breast cancer remains experimental.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Breast cancer patients with brain metastases who are suitable for surgical resection or Breast cancer patients with extra-cranial metastases undergoing surgical resection or biopsy
* Age \> 18 years old

Exclusion Criteria:

* Patients unable to give informed consent e.g., mental disability or vulnerable adults

Where this trial is running

London and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Breast Neoplasms

Last reviewed 2026-05-15 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.