Description:
RATIONALE: Radiation therapy uses high-energy x-rays or other types of radiation to kill
tumor cells. Giving radiation therapy after surgery may kill any tumor cells that remain
after surgery. It is not yet known whether radiation therapy is more effective than
observation after mastectomy in treating women with stage II breast cancer.
PURPOSE: This randomized phase III trial is studying radiation therapy to see how well it
works compared with standard therapy in treating women with stage II breast cancer who have
undergone mastectomy.
Title
- Brief Title: Radiation Therapy or Standard Therapy in Treating Women With Stage II Breast Cancer Who Have Undergone Mastectomy
- Official Title: Selective Use of Postoperative Radiotherapy AftEr MastectOmy - SUPREMO
Clinical Trial IDs
- ORG STUDY ID:
MRC-BIG2-04
- SECONDARY ID:
CDR0000642751
- SECONDARY ID:
ISRCTN61145589
- SECONDARY ID:
EU-20943
- NCT ID:
NCT00966888
Conditions
Purpose
RATIONALE: Radiation therapy uses high-energy x-rays or other types of radiation to kill
tumor cells. Giving radiation therapy after surgery may kill any tumor cells that remain
after surgery. It is not yet known whether radiation therapy is more effective than
observation after mastectomy in treating women with stage II breast cancer.
PURPOSE: This randomized phase III trial is studying radiation therapy to see how well it
works compared with standard therapy in treating women with stage II breast cancer who have
undergone mastectomy.
Detailed Description
OBJECTIVES:
- Determine the overall survival of women at intermediate risk for locoregional recurrence
of breast cancer treated with ipsilateral chest wall adjuvant radiotherapy after
mastectomy.
OUTLINE: This is a multicenter study. Patients are randomized to 1 of 2 treatment arms.
- Arm I: Beginning 12 weeks after mastectomy or 6 weeks after adjuvant chemotherapy,
patients undergo radiotherapy 5 days a week for 3-5 weeks in the absence of disease
progression or unacceptable toxicity.
- Arm II: Patients receive standard of care and observation only. After completion of
study therapy, patients are followed up twice in the first year, and then annually for
up to 10 years.
Trial Arms
Name | Type | Description | Interventions |
---|
Arm I | Experimental | Beginning 12 weeks after mastectomy or 6 weeks after adjuvant chemotherapy, patients undergo radiotherapy 5 days a week for 3-5 weeks in the absence of disease progression or unacceptable toxicity. | |
Arm II | Active Comparator | Patients receive standard of care and observation only. | |
Eligibility Criteria
DISEASE CHARACTERISTICS:
- Histologically confirmed unilateral invasive breast cancer
- pT1, pN1, M0 disease
- pT2, pN1, M0 disease
- pT2, pN0 disease with grade III histology and/or lymphovascular invasion
- Multifocal breast cancer meeting both of the following criteria:
- Largest discrete tumor ≥ 2 cm if N0
- Grade III histology and/or lymphovascular invasion
- No bilateral breast cancer
- Axillary node negative status by axillary clearance, axillary node sampling, or
sentinel node biopsy
- Patients with axillary node positive (1-3 positive nodes, including
micrometastases* > 0.2 mm and ≤ 2 mm) must have had an axillary node clearance
(minimum of 10 nodes removed) performed
- No more than 3 pathologically involved lymph nodes
- No internal mammary nodes visible on sentinel node scintigraphy in the absence of
negative histology NOTE: *Isolated tumor cells not counted as micrometastases
- Underwent total mastectomy (with minimum of 1 mm margin clear of invasive cancer and
DCIS) and axillary surgery with staging procedure
- Must have undergone adjuvant systemic chemotherapy if indicated for
intermediate-risk breast cancer
- Patients undergoing immediate breast reconstruction allowed
- No known BRCA1 and BRCA2 carriers
- Hormone receptor status not specified
PATIENT CHARACTERISTICS:
- Menopausal status not specified
- Not pregnant
- Fit for adjuvant chemotherapy, adjuvant endocrine therapy, and post-operative
radiotherapy
- No prior or concurrent malignancy except curatively treated nonmelanomatous skin
cancer or carcinoma in situ of the cervix
PRIOR CONCURRENT THERAPY:
- See Disease Characteristics
- No concurrent trastuzumab
- No prior neoadjuvant systemic therapy
Maximum Eligible Age: | N/A |
Minimum Eligible Age: | N/A |
Eligible Gender: | Female |
Healthy Volunteers: | No |
Primary Outcome Measures
Measure: | Overall survival |
Time Frame: | |
Safety Issue: | |
Description: | |
Secondary Outcome Measures
Measure: | Chest wall recurrence |
Time Frame: | |
Safety Issue: | |
Description: | |
Measure: | Regional recurrence |
Time Frame: | |
Safety Issue: | |
Description: | |
Measure: | Disease-free survival |
Time Frame: | |
Safety Issue: | |
Description: | |
Measure: | Metastasis-free survival |
Time Frame: | |
Safety Issue: | |
Description: | |
Measure: | Cause of death (breast cancer, or intercurrent disease [cardiovascular or non-cardiovascular]) |
Time Frame: | |
Safety Issue: | |
Description: | |
Measure: | Quality of life |
Time Frame: | |
Safety Issue: | |
Description: | |
Measure: | Cost effectiveness |
Time Frame: | |
Safety Issue: | |
Description: | |
Details
Phase: | Phase 3 |
Primary Purpose: | Interventional |
Overall Status: | Unknown status |
Lead Sponsor: | Medical Research Council |
Trial Keywords
Last Updated
August 12, 2013