Local Therapy for ER/PR-positive Oligometastatic Breast Cancer

ConditionBreast Cancer
Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexFemale
Age18+
SponsorInstituto do Cancer do Estado de São Paulo

About this trial

Randomized phase 2 trial to evaluate the efficacy of local therapy for oligometastasis from ER/PR-positive breast cancer. The study hypothesis is that local therapy in addition to systemic therapy improves progression-free survival in comparison with systemic therapy alone.

Eligibility criteria

Qualifiers

Female sex

≥ 18 years of age

Histologically confirmed invasive breast cancer, with oligometastatic disease defined as one of the following criteria: 1) One to four bone lesions; 2) One to four lung and/ or hepatic lesions; 3) Distant metastasis limited to ipsilateral cervical lymph nodes; 4) Distant metastasis limited to contralateral axillary lymph nodes

Oligometastatic sites amenable to treatment with a local therapy modality, including surgical resection, stereotactic radiotherapy, or radiofrequency ablation

Disqualifiers

HER2-positive breast cancer

Progressive disease during the last systemic treatment received for metastatic disease

Previous local therapy for distant metastasis

Current or previous history of severe diseases, such as clinically relevant heart failure, acute myocardium infarction in the last six months, chronic obstructive lung disease, HIV infection, chronic active hepatitis B or C infection, current serious uncontrolled infections or other severe diseases that may impact patients' expected survival)

Trial design

Treatments tested in this trial

  • Radiotherapy
  • Surgery
  • Radiofrequency ablation

Treatment groups

74 Participants
are divided into 2 treatment groups