Breast Cancer, Breast-conserving Surgery
Conditions
Brief summary
This study is a diagnostic open-label, prospective, single-arm non-inferiority clinical trial. The primary endpoint is the accuracy to detect positive invasive margins in invasive ductal carcinoma (IDC) patients by high-resolution specimen Positron Emission Tomography/Computed Tomography (PET/CT) imaging.
Detailed description
The rationale of this study is to examine the non-inferiority of intraoperative high-resolution specimen PET/CT imaging in early-stage breast cancer for the identification of all positive margins of the invasive component during Breast Cancer Surgery (BCS) as compared to standard-of-care gross pathology evaluation. The PET/CT specimen imager is used to intraoperatively assess resection margins and histopathological findings of the breast tumor specimen are applied as the gold standard.
Interventions
The PET/CT specimen imager (AURA 10 PET/CT) is used to intraoperatively assess resection margins and histopathological findings of the breast tumor specimen are applied as the gold standard
Sponsors
Study design
Eligibility
Inclusion criteria
* females with an age over 18 years; * confirmed breast cancer with indication to undergo BCS (stage I-II with tumor ≤2.5 in greatest dimension); * vacuum-assisted core breast biopsy is allowed for non-invasive tumors only; * able to understand treatment protocol and informed consent form; * estimated by the investigator to be compliant for study participation.
Exclusion criteria
* general or local contra-indication for BCS; * previous breast surgery; * inflammatory breast cancer; * radiotherapy of the ipsilateral breast; * vacuum-assisted core breast biopsy for all patients with invasive tumors (vacuum-assisted core breast biopsy is allowed for patients with non-invasive tumors as long as the residual tumor size on mammogram is at least 1.0 cm); * pregnancy or lactation; * participation in other clinical studies with a radiation exposure of more than 1 mSv in the past year; * active bacterial, viral or fungal infection.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Evaluation of the accuracy to detect positive invasive margins in IDC patients | 1 month | Evaluation of intraoperative high-resolution specimen PET/CT imaging for the identification of all invasive positive margins during primary breast-conserving surgery (BCS) of invasive ductal carcinoma (IDC), as compared to perioperative gross pathology evaluation. Permanent pathology is used as the gold standard for margin assessment. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Evaluation of diagnostic performance of PET/CT in the detection of positive margins respect to gross pathology | 1 month | determining the diagnostic performance of intraoperative high-resolution specimen PET/CT imaging and gross pathology to detect all positive margin; |
| Detection of malignant cells in resected lymph nodes and cavity shaves | 1 month | exploring the ability of intraoperative high-resolution specimen PET/CT imaging to detect the presence of malignant cells in resected lymph nodes and cavity shaves; |
| Definition of optimal SUVmax cut-off | 1 months | determining the optimal SUVmax cut-off in intraoperative high-resolution specimen PET/CT imaging for the correct detection of malignant vs. non-malignant tissues, using pathology results as standard-of-reference |
Countries
Italy