TriangleNCT00005957 · CITED IN SOURCE DOCUMENTS
Radiation Therapy in Treating Women Who Have Undergone Surgery for Early-Stage Invasive Breast Cancer
An NCI or FDA source cites this study. A citation does not establish that it applies to an individual diagnosis.
- Phase
- NA
- Status at capture
- COMPLETED
- Registry last update
- 2023-08-21
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Radiation to the tumor site and surrounding area may kill more tumor cells. It is not yet known if radiation therapy to the breast alone following surgery is more effective than radiation therapy to the breast plus surrounding tissue in treating invasive breast cancer. PURPOSE: This randomized phase III trial is studying radiation therapy to the breast alone to see how well it works compared to radiation therapy to the breast plus surrounding tissue in treating women who have undergone surgery for early-stage invasive breast cancer.
Open the original ClinicalTrials.gov record → · Download preserved record
What did the study report?
Outcomes, safety and baseline populations are separate source sections. Quality-of-life measures appear under their original outcome titles.
Who could take part
- eligibility Criteria
- DISEASE CHARACTERISTICS: * Histologically proven invasive carcinoma of the breast * No evidence of T4, N2-3, or M1 disease prior to surgery * Node positive or high-risk node negative * Prior breast-conserving therapy (BCT) (e.g., lumpectomy, partial mastectomy, or segmental mastectomy) and axillary node dissection or sentinel node biopsy required and must be a candidate for breast radiotherapy after BCT * Normally patients should have microscopically clear resection margins and those with positive margins should undergo reexcision * Patients with microscopically focally positive margins (defined as no greater than 3 times high power fields) are candidates for breast radiotherapy plus a boost to the lumpectomy site * Patients with prior sentinel node dissection eligible if node negative, but still meet high-risk criteria * If node positive, then a level I and II axillary dissection must be performed * No evidence of residual disease in axilla after dissection * Must be treated with currently accepted adjuvant systemic chemotherapy and/or hormonal therapy * High risk of regional and systemic recurrence due to one of the following: * Pathologically positive axillary lymph nodes * Pathologically negative axillary lymph nodes with one of the following: * Primary tumor greater than 5 cm * Primary tumor greater than 2 cm and less than 10 axillary lymph nodes excised and one of the following: * Estrogen receptor negative * Skarf-Bloom-Richardson grade 3 * Lymphovascular invasion * Hormone receptor status: * Estrogen and progesterone receptor status known PATIENT CHARACTERISTICS: Age: * 16 and over Sex: * Female Menopausal status: * Premenopausal or postmenopausal Performance status: * ECOG 0-2 Life expectancy: * At least 5 years Hematopoietic: * Not specified Hepatic: * SGOT and/or SGPT no greater than 3 times upper limit of normal (ULN)\* * Alkaline phosphatase no greater than 3 times ULN\* NOTE: \* Patients with laboratory values greater than 3 times ULN may still be eligible if no metastatic disease by imaging examinations Renal: * No serious nonmalignant renal disease Cardiovascular: * No serious nonmalignant cardiovascular disease Pulmonary: * No serious nonmalignant pulmonary disease Other: * Not pregnant or nursing * Fertile patients must use effective contraception * No other serious nonmalignant disease (e.g., systemic lupus erythematosus or scleroderma) that would preclude definitive surgery or radiotherapy * No other malignancy except: * Nonmelanomatous skin cancer * Carcinoma in situ of the cervix or endometrium * Contralateral noninvasive breast cancer (unless prior radiotherapy to the contralateral breast) * Invasive carcinoma of the cervix, endometrium, colon, thyroid, or melanoma that was curatively treated at least 5 years prior to study participation * No psychiatric or addictive disorder that would preclude informed consent or study compliance PRIOR CONCURRENT THERAPY: Biologic therapy: * Not specified Chemotherapy: * See Disease Characteristics * Concurrent standard adjuvant chemotherapy allowed Endocrine therapy: * See Disease Characteristics * Concurrent standard adjuvant hormonal therapy allowed Radiotherapy: * See Disease Characteristics Surgery: * See Disease Characteristics
- healthy Volunteers
- false
- maximum Age
- 120 Years
- minimum Age
- 16 Years
- sex
- FEMALE
- std Ages
- CHILD
- ADULT
- OLDER_ADULT
Treatment arms and interventions
- arm Groups
- intervention Names
- Radiation: Standard Breast Irradiation
- label
- Standard Breast Irradiation
- type
- ACTIVE_COMPARATOR
- description
- regional radiation therapy (to the ipsilateral supraclavicular, axillary and internal mammary nodes)
- intervention Names
- Radiation: Breast Radiation plus Regional Radiation
- label
- Breast Radiation plus regional radiation
- type
- EXPERIMENTAL
- interventions
- arm Group Labels
- Standard Breast Irradiation
- description
- Standard Breast Irradiation - A dose of 5000 cGy in 25 fractions at a rate of 200 cGy per day, 5 days a week for 5 weeks will be prescribed to the standard tangent fields.
- name
- Standard Breast Irradiation
- type
- RADIATION
- arm Group Labels
- Breast Radiation plus regional radiation
- description
- Breast Radiation plus Regional Radiation - A dose of 5000 cGy in 25 fractions at a rate of 200 cGy per day, 5 days a week for 5 weeks will be prescribed to the modified wide tangent fields.
- name
- Breast Radiation plus Regional Radiation
- type
- RADIATION
Study design
- allocation
- RANDOMIZED
- intervention Model
- PARALLEL
- masking Info
- masking
- NONE
- primary Purpose
- TREATMENT
Enrollment
- count
- 1832
- type
- ACTUAL
Registered outcome plans (not posted results)
- primary Outcomes
- description
- Duration of study
- measure
- Overall Survival
- time Frame
- 10 years
- secondary Outcomes
- description
- Disease-free survival (including locoregional and distant disease)
- measure
- Disease-free Survival
- time Frame
- 10 years
Full study description
- brief Summary
- RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Radiation to the tumor site and surrounding area may kill more tumor cells. It is not yet known if radiation therapy to the breast alone following surgery is more effective than radiation therapy to the breast plus surrounding tissue in treating invasive breast cancer. PURPOSE: This randomized phase III trial is studying radiation therapy to the breast alone to see how well it works compared to radiation therapy to the breast plus surrounding tissue in treating women who have undergone surgery for early-stage invasive breast cancer.
- detailed Description
- OBJECTIVES: * Compare the overall survival, disease-free survival, isolated local regional disease-free survival, and distant disease-free survival in women with previously resected, early stage, invasive breast cancer treated with breast radiotherapy with or without regional radiotherapy. * Compare the toxic effects of these regimens in these patients. * Compare the quality of life of patients (in certain participating centers) treated with these regimens. * Compare the cosmetic outcomes in patients (in certain participating centers) treated with these regimens. OUTLINE: This is a randomized, multicenter study. Patients are stratified according to number of positive nodes (0 vs 1-3 vs more than 3), number of axillary nodes removed (\<10, \> or equal to 10); type of chemotherapy (anthracycline containing vs other vs none), hormonal therapy (yes vs no), number of axillary lymph nodes excised\*, and participating center. Patients are randomized to one of two treatment arms. NOTE: \* Patients with a negative sentinel node dissection with or without an axillary dissection will be stratified according to the total number of nodes removed * Arm I: Patients undergo standard breast radiotherapy alone 5 days a week for 5 weeks in the absence of disease progression or unacceptable toxicity. * Arm II: Patients undergo breast and regional radiotherapy 5 days a week for 5 weeks in the absence of disease progression or unacceptable toxicity. Radiotherapy in both arms begins as soon as possible after randomization. Radiotherapy must begin within 8 weeks after completion of adjuvant IV chemotherapy, unless radiotherapy is administered concurrently with chemotherapy (i.e., cyclophosphamide, methotrexate, and fluorouracil \[CMF\]), or within 16 weeks after the last breast surgery for patients treated with hormonal therapy alone. Quality of life is assessed (in patients in certain participating centers) within 2 weeks prior to randomization, during the last week of radiotherapy, at 3 and 9 months after completion of radiotherapy, and then annually until first distant disease recurrence. Cosmetic outcome is assessed (in patients in certain participating centers) within 2 weeks prior to randomization, and then at 3 and 5 years after completion of radiotherapy or until first distant disease recurrence. Patients are followed at 3, 6, and 9 months, every 6 months for 2 years, and then annually thereafter. PROJECTED ACCRUAL: Approximately 1,822 patients will be accrued for this study within approximately 4 years.
Source references
- references
- citation
- Whelan TJ, Olivotto IA, Parulekar WR, Ackerman I, Chua BH, Nabid A, Vallis KA, White JR, Rousseau P, Fortin A, Pierce LJ, Manchul L, Chafe S, Nolan MC, Craighead P, Bowen J, McCready DR, Pritchard KI, Gelmon K, Murray Y, Chapman JA, Chen BE, Levine MN; MA.20 Study Investigators. Regional Nodal Irradiation in Early-Stage Breast Cancer. N Engl J Med. 2015 Jul 23;373(4):307-16. doi: 10.1056/NEJMoa1415340.
- pmid
- 26200977
- type
- RESULT
- citation
- Gross JP, Whelan TJ, Parulekar WR, Chen BE, Rademaker AW, Helenowski IB, Donnelly ED, Strauss JB. Development and Validation of a Nomogram to Predict Lymphedema After Axillary Surgery and Radiation Therapy in Women With Breast Cancer From the NCIC CTG MA.20 Randomized Trial. Int J Radiat Oncol Biol Phys. 2019 Sep 1;105(1):165-173. doi: 10.1016/j.ijrobp.2019.05.002. Epub 2019 May 11.
- pmid
- 31085285
- type
- DERIVED
Source notices and limitations
Discovery and provenance
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- occurrences
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- r, its role in patients who have breast-conserving surgery and whole-breast radiation therapy has been less clear. A randomized trial (<a href="/clinicaltrials/NCT00005957">NCT00005957</a>) of 1,832 women showed that administering regional nodal irradiation after breast-conserving surgery and whole-breast radiation therapy reduce
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- n patients who have breast-conserving surgery and whole-breast radiation therapy has been less clear. A randomized trial (<a href="/clinicaltrials/NCT00005957">NCT00005957</a>) of 1,832 women showed that administering regional nodal irradiation after breast-conserving surgery and whole-breast radiation therapy reduced the risk of
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- source title
- Breast Cancer Treatment (PDQ®)–Health Professional Version
- source update dates
- context
- Updated: April 25, 2025
- datetime
- 2025-04-25T12:00:00Z
- display
- April 25, 2025
Preserved source evidence · Not medical advice