Breast Cancer
Conditions
Keywords
early stage invasive breast cancer, Partial breast irradiation, interstitial implant
Brief summary
The purpose of this study is to evaluate radiation therapy directed to a small region of the breast in women who were recently diagnosed with early stage invasive breast cancer.
Detailed description
* When participants undergo surgery to remove the tumor (lumpectomy), it will be followed by the placement of small flexible tubes throughout the region surrounding the site of operation. These tubes will remain in place for 7-9 days following the surgery. * The first 2-3 days, the tubes will not contain radioactivity. This time is used to do all the calculations necessary for treatment and to check the findings in the breast tissue that was removed. After 2-3 days, the tubes will be filled with a radioactive wire which will remain in place for the next 5 days. During this period of time, participants will be required to remain within the hospital. At the end of these 5 days, the radioactive wires and tubes will be removed.
Interventions
RADIATIONInterstitial Implant Brachytherapy
Via tubes placed at the time of wide local excision delivered over 5 days
Sponsors
Massachusetts General Hospital
Study design
Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Low risk of multifocal disease within the breast whose tumor location is favorable for brachytherapy catheter placement * Diagnosis of invasive breast carcinoma (biopsy or fine needle aspiration cytology) and be clinical stage T1N0 (primary tumor \< 2cm, clinically negative nodes) * Location of primary tumor is not immediately adjacent to the nipple of chest wall * No evidence of two or more separate tumors within the breast * All histologic types and pathologic grades of primary tumor * No extensive intraductal component (substantial intraductal carcinoma away from the primary tumor location) * No lymphatic or vascular invasion * Lymph node staging by sentinel node excision or axillary dissection confirms node negative status (If node positive, implant is used to deliver boost to tumor bed) * Assessment of final surgical margins should be predominantly negative, but a single small region of focal positivity is allowable as it is for whole breast radiation * 18 years of age or older
Exclusion criteria
* Tumor is too close to the chest wall to allow placement of catheters * Contraindications to radiation therapy are present, including a history of scleroderma, systemic lupus or other active connective tissue disease, pregnancy, or prior chest wall radiation
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| To determine if interstitial implant brachytherapy to radical radiation doses is feasible following wide local excision of T1N0 breast carcinoma | 3 years |
Countries
United States
Outcome results
None listed