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Sensitivity of Organoids to Predict Treatment Outcome in 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

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06468124
Acronym
PDO
Enrollment
20
Registered
2024-06-21
Start date
2025-05-27
Completion date
2026-06-30
Last updated
2025-12-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Neoplasms

Brief summary

The aim of the study is to generate patient-derived organoids (PDOs) from brain resection or biopsied extra-cranial metastases. The preliminary data collected will be used to assess the ability of PDOs to predict patients' treatment response and their radio-sensitivity and chemo-sensitivity can be correlated with their survival outcome.

Detailed description

The SOTO-BC trail is an observation study and the patients will continue their clinical visits and follow-up as per normal standard of care. Patient cohorts: 1. Breast cancer patients with brain metastases undergoing surgical resection with or without further radiotherapy (SRS or whole brain radiotherapy) 2. Breast cancer patients with extra-cranial metastases undergoing surgical resection or biopsy Primary objective: To assess the percentage of successful generated organoids from resected brain or resected/biopsied extra-cranial metastases of breast cancer patients Secondary objectives: 1. To assess the sensitivity of radiotherapy in PDOs 2. To assess the sensitivity of the same systemic treatments that the patients previously had and will have in PDOs 3. To correlate the treatment sensitivities of PDOs above with the treatment outcome of patients 4. To correlate IC50 doses/dose response curves above with the objective response rates of patients undergoing same systemic treatment Study Procedures: Breast cancer patients with resectable brain or extra-cranial metastases or who will undergo a biopsy of the extra-cranial metastases will be asked to consent for this study and for their resected/biopsied samples to be used to generate PDOs. The investigators aim to recruit 20 patients in the pilot phase of the study. When the PDOs contain sufficient cells, these cells will be treated with increasing doses of radiotherapy and/or relevant systemic treatments in order to determine the IC50 and to obtain dose-response curves of these PDOs to the treatments. The investigators will treat the PDOs with the same treatments that the patients had or will receive in order to correlate the responses to radiotherapy and/or systemic treatments including immunotherapy (co-cultured with immune cells). The response of these PDOs will be compared to the treatment outcome and survivals in these patients.

Interventions

None listed

Sponsors

King's College London
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Patient derived organoids10 monthsTo generate PDOs from brain or extra-cranial metastases of breast cancer patients.

Secondary

MeasureTime frameDescription
Response to radiotherapy6 monthsTo determine the dose response curves of radiotherapy
Response to therapy5 monthsTo determine the IC50 doses of the previous and same systemic treatments that patients had or will have in PDOs
recurrence and survival rates4 monthsTo correlate the IC50 doses and dose response curves above with the recurrence rates and progression-free survival of patients
Response rate of patients undergoing systemic treatment3 monthsTo correlate IC50 doses/dose response curves above with the objective response rates of patients undergoing same systemic treatment

Countries

United Kingdom

Contacts

Primary ContactAnthony Kong
Anthony.kong@kcl.ac.uk0207 848 8302
Backup ContactChristiana Cattaneo
christiana.1.cattaneo@kcl.ac.uk0207 848 8302

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026