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Stereotactic Ablative Radiotherapy for OligoMetastatic Breast Cancer

Treatment of Oligometastatic Breast Cancer - a Randomised Phase 3 Trial Comparing Stereotactic Ablative Radiotherapy and Systemic Treatment With Systemic Treatment Alone as 1st Line Treatment

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05377047
Acronym
TAORMINA
Enrollment
345
Registered
2022-05-17
Start date
2022-09-19
Completion date
2030-12-31
Last updated
2026-09-14

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

Conditions

Breast Cancer Stage IV, Oligometastatic Disease

Keywords

SBRT, SABR, OMBC

Brief summary

TAORMINA is an international, multicentre, randomised phase 3 trial for patients with oligometastatic breast cancer (OMBC) that will be allocated to combined stereotactic ablative radiotherapy (SABR) + systemic therapy (investigational arm) versus systemic therapy alone (control arm) as 1st line therapy.

Detailed description

TAORMINA is an international, multicentre, randomised phase 3 trial for patients with oligometastatic breast cancer (OMBC) that will be allocated to combined stereotactic ablative radiotherapy (SABR) + systemic therapy (investigational arm) versus systemic therapy alone (control arm) as 1st line therapy. Patients with 1-5 metastases in 1-2 organs (confirmed by PET-CT) with any breast cancer subtype can be enrolled. All metastases must be available for SABR. The primary aim is to investigate if the addition of SABR to the oligometastatic sites in addition to the standard first-line treatment can improve progression-free survival (PFS). Secondary aims are to compare overall survival (OS), response rate and time to development of new lesions, acute and late toxicity. quality of life, time to start of chemotherapy (luminal patients). Exploratory analyses: Circulating tumour DNA as an early sign of disease progression. Immun panel for determination of the effect of SABR on patients´ immune response. To investigate the survival for each BC subtype (Luminal, HER2+ and TNBC). To investigate survival in patients with de novo OMBC and recurrent OMBC respectively. Stratifications are based on subtype (luminal, HER2-positive vs TNBC) and type of OMBC (de novo vs. recurrent) without formal sample size calculation for the stratification factor (exploratory analysis). Patients with de novo metastatic OMBC that is planned for neoadjuvant treatment are recommended to complete treatment followed by standard surgery and radiotherapy or SABR towards the primary tumour lesion(s).

Interventions

RADIATIONSABR

Stereotactic Ablative Radiotherapy is delivered to all metastatic lesions.

Sponsors

Vastra Gotaland Region
Lead SponsorOTHER_GOV
Sahlgrenska University Hospital
CollaboratorOTHER
Azienda Ospedaliero-Universitaria Careggi
CollaboratorOTHER
Region Örebro County
CollaboratorOTHER
Skane University Hospital
CollaboratorOTHER
Karolinska University Hospital
CollaboratorOTHER
University Hospital, Umeå
CollaboratorOTHER
Oslo University Hospital
CollaboratorOTHER
St. Olavs Hospital
CollaboratorOTHER
Haukeland University Hospital
CollaboratorOTHER
University Hospital of North Norway
CollaboratorOTHER
Fondazione IRCCS Istituto Nazionale dei Tumori, Milano
CollaboratorOTHER
Humanitas Research Hospital IRCCS, Rozzano-Milan
CollaboratorOTHER
Cork University Hospital
CollaboratorOTHER
St. James's Hospital, Ireland
CollaboratorOTHER
Beaumont Hospital
CollaboratorOTHER
Bon Secours Cork Cancer Centre
CollaboratorUNKNOWN
Galway University Hospitals
CollaboratorUNKNOWN
Institute of Oncology Ljubljana
CollaboratorOTHER
Sheba Medical Center
CollaboratorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Randomisation 2:1 (systemic treatment + SABR vs systemic treatment)

Eligibility

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

Inclusion criteria

1. Histologically or cytological confirmed recurrent OMBC. 2. Age ≥18 years old. 3. OMBC defined as 1-5 metastases in a maximum of two organs confirmed by PET-CT. 4. Patients already on 1st line systemic treatment can be enrolled if repeated tumour evaluations show stable disease. 5. Patients with de novo stage IV OMBC must have a controlled primary tumour regardless of primary surgery or primary systemic treatment. 6. Patients with local recurrence and OMBC must have a controlled local recurrence. 7. ECOG/WHO 0-2. 8. Life expectancy \> 6 months. 9. Known ER, PgR and HER2 status of either primary tumour or metastasis (preferred). 10. Symptomatic bone metastases are allowed if ablative therapy can be delivered. 11. Adequate organ function for the planned treatment according to local guide-lines. 12. For patients with liver metastasis: * No cirrhosis or hepatitis * Hepatic function: * Total bilirubin level \< 3.0 x institutional ULN * ALT, AST, GGT, and alkaline phosphatase levels \< 3.0 x institutional ULN * Albumin \> 2.5 mg/dL * Metastasis not adjutant to stomach or small bowel. 13. For patients with abdominal metastases: adequate renal function with a calculated creatinine clearance of \> 60mL/min. 14. Toxicities from previous adjuvant therapies (excluding alopecia) must have recovered to grade 1 (defined by CTCAE 5.0). Stable grade 2 peripheral neuropathy are considered individually by the investigator. 15. Negative pregnancy test within 14 days prior to start of treatment\*. 16. If childbearing potential, willing to use an effective form of contraception\*. 17. No other malignancy during the last 5 years except for radically treated basal or squamous cell carcinoma of the skin or CIS of the cervix. 18. Signed informed consent and willingness to follow the trial procedures.

Exclusion criteria

1. \> 1 line of systemic treatment for OMBC due to previous progressing disease (previous treatment of isolated local recurrences with a 2nd adjuvant treatment not included). Change due to toxicity allowed. 2. Oligometastases in brain. 3. Malignant pleural effusion or ascites. 4. Metastasis growth that involves \> 3 vertebra and adjacent spinal cord, spine instability or neurological deficit resulting from compression, 25% spinal canal compromise or progressive neurological deficit. 5. Unable to undergo imaging by either CT scan or MRI. 6. Evidence of any other medical conditions (such as psychiatric illness, infectious diseases, neurological conditions, physical examination or laboratory findings) that may interfere with the planned treatment or affect patient compliance. 7. Pregnancy or breast-feeding. 8. Concurrent malignancy requiring therapy (excluding non-invasive carcinoma or carcinoma in situ).

Design outcomes

Primary

MeasureTime frameDescription
Progression-free survival (PFS)3 years after the last patient inclusionTime from the date of randomisation to the date of disease-progression at any site or death from any cause.

Secondary

MeasureTime frameDescription
Overall survival (OS)3 years after the last patient inclusionTime from the date of randomisation to the date of death from any cause.
Local Control Rate (LCR)3 years after the last patient inclusionTime from the date of randomisation to the date of progress in previously treated metastases
Safety analysis - acute toxicityFrom the first dose of SABR to 3 months after the last dose of SABRReported according to CTCAE v.5.0
Safety analysis - late toxicityFrom the first dose of SABR to 3 years after the last dose of SABRReported according to CTCAE v.5.0
Health-related quality of life Cancer-30At base-line and after 3, 6, 9, 12, 18, 24 and 36 months after registration.European Organisation for Research and Treatment of Cancer-Quality of Life Questionnaires Cancer-30 (EORTC-QLQ C30)
Health-related quality of life Breast-23At base-line and after 3, 6, 9, 12, 18, 24 and 36 months after registration.European Organisation for Research and Treatment of Cancer-Quality of Life Questionnaire Breast-23 (EORTC-QLQ B23)

Countries

Ireland, Israel, Italy, Norway, Slovenia, Sweden

Contacts

CONTACTKatarzyna Kulbacka-Ortiz, CTO
katarzyna.kulbacka-ortiz@vgregion.se+46721470685
CONTACTAnnika Baan
annika.baan@vgregion.se+46700906097
PRINCIPAL_INVESTIGATORBarbro K Linderholm, MD, PhD

Sahlgrenska University Hospital, Gothenburg

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 15, 2026