NCT00014612 · CITED IN SOURCE DOCUMENTS
Comparison of Complete Axillary Lymph Node Dissection With Axillary Radiation Therapy in Treating Women With Invasive Breast Cancer
An NCI or FDA source cites this study. A citation does not establish that it applies to an individual diagnosis.
- Phase
- PHASE3
- Status at capture
- COMPLETED
- Registry last update
- 2013-10-29
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells and may be a less invasive treatment and cause fewer side effects than complete axillary lymph node dissection. It is not yet known which treatment is more effective for invasive breast cancer. PURPOSE: Randomized phase III trial to compare the effectiveness of complete axillary lymph node dissection with that of axillary radiation therapy in treating women who have 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.
No posted result sections were captured. Registered plans do not establish that a treatment works.
Who could take part
- eligibility Criteria
- DISEASE CHARACTERISTICS: * Histologically or "triple diagnosis" (palpation, mammogram or ultrasound, and cytology) confirmed operable invasive breast cancer * T0-2, N0 * Diagnosis by excisional tumorectomy allowed * Clinically occult invasive disease must be histologically confirmed * Only 1 tumor in 1 breast * Tumor between 5 and 50 mm in largest diameter, within 1 quadrant by mammogram, ultrasound or MRI * Multifocal (i.e., within one quadrant and sharing the same histological characteristics) is allowed * Multicentric (i.e., in different quadrants) breast cancer is not allowed * Clinically negative axillary lymph nodes * No metastatic disease * No previous treatment of the primary breast tumor by neoadjuvant hormonal or systemic treatment * Hormone receptor status: * Not specified PATIENT CHARACTERISTICS: Age: * Any age Sex: * Female Menopausal status: * Not specified Performance status: * Not specified Life expectancy: * Not specified Hematopoietic: * Not specified Hepatic: * Not specified Renal: * Not specified Other: * Fit to undergo sentinel node biopsy, axillary clearance, breast surgery, and/or axillary radiotherapy * No psychological, familial, sociological, or geographical condition that would preclude study compliance * No other prior malignancy except basal cell skin cancer or carcinoma in situ of the cervix * Not pregnant PRIOR CONCURRENT THERAPY: Biologic therapy: * Not specified Chemotherapy: * Not specified Endocrine therapy: * Not specified Radiotherapy: * No prior radiotherapy to axilla Surgery: * No prior surgery to axilla Other: * See Disease Characteristics
- healthy Volunteers
- false
- sex
- FEMALE
- std Ages
- CHILD
- ADULT
- OLDER_ADULT
Treatment arms and interventions
- arm Groups
- description
- complete axillary lymph node dissection
- intervention Names
- Procedure: axillary lymph node dissection
- Procedure: lymphoscintigraphy
- Procedure: therapeutic conventional surgery
- label
- axillary lymph node dissection
- type
- ACTIVE_COMPARATOR
- description
- axillary radiotherapy, daily for 5 days a week, for 5 weeks
- intervention Names
- Procedure: lymphoscintigraphy
- Procedure: therapeutic conventional surgery
- Radiation: radiation therapy
- label
- axillary radiotherapy
- type
- EXPERIMENTAL
- interventions
- arm Group Labels
- axillary lymph node dissection
- name
- axillary lymph node dissection
- type
- PROCEDURE
- arm Group Labels
- axillary lymph node dissection
- axillary radiotherapy
- name
- lymphoscintigraphy
- type
- PROCEDURE
- arm Group Labels
- axillary lymph node dissection
- axillary radiotherapy
- name
- therapeutic conventional surgery
- type
- PROCEDURE
- arm Group Labels
- axillary radiotherapy
- name
- radiation therapy
- type
- RADIATION
Study design
- allocation
- RANDOMIZED
- intervention Model
- PARALLEL
- masking Info
- masking
- NONE
- primary Purpose
- TREATMENT
Enrollment
- count
- 4813
- type
- ACTUAL
Registered outcome plans (not posted results)
- primary Outcomes
- measure
- Axillary recurrence rate
- time Frame
- from randomization
- secondary Outcomes
- measure
- Shoulder function as assessed by arm function test questionnaire at baseline, 1, 3, and 5 years after surgery
- time Frame
- from randomization
- measure
- Quality of life as measured by Quality of Life Questionnaire Core 30 Items (QLQ-C30) and QLQ-BR25 at baseline, 1, 2, 3, and 5 years after surgery
- time Frame
- from randomization
- measure
- Axillary recurrence-free survival
- time Frame
- from randomization
- measure
- Disease-free survival
- time Frame
- from randomization
- measure
- Overall survival
- time Frame
- from randomization
Full study description
- brief Summary
- RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells and may be a less invasive treatment and cause fewer side effects than complete axillary lymph node dissection. It is not yet known which treatment is more effective for invasive breast cancer. PURPOSE: Randomized phase III trial to compare the effectiveness of complete axillary lymph node dissection with that of axillary radiation therapy in treating women who have invasive breast cancer.
- detailed Description
- OBJECTIVES: * Compare the regional control of the axilla obtained by complete axillary lymph node dissection vs axillary radiotherapy in sentinel lymph node-positive women with operable invasive breast cancer. * Determine whether local and regional axillary control can be obtained without axillary lymph node dissection in sentinel lymph node-negative women. * Compare the axillary 5-year recurrence-free survival of these patients treated with these regimens. * Compare the morbidity of patients treated with these regimens. * Compare the quality of life of these patients treated with these regimens. OUTLINE: This is a randomized, multicenter study. Patients are stratified according to participating center and type of breast surgery (conservation vs total mastectomy). Patients are randomized to 1 of 2 treatment arms. Patients are given an injection of a tracer and undergo lymphoscintigraphy 2-3 hours later to identify the sentinel lymph node. Within 24 hours after lymphoscintigraphy, patients undergo wide local excision of the tumor or mastectomy after the sentinel node is removed. If no sentinel node is found or metastasis is found in a nonsentinel node, patients undergo complete axillary lymph node dissection (ALND) regardless of randomization. Sentinel node-negative patients receive no further treatment. Sentinel node-positive patients continue treatment according to randomization. * Arm I: Within 8 weeks after surgery, patients undergo complete ALND. * Arm II: Within 8 weeks after surgery, patients undergo axillary lymph node radiotherapy daily 5 days a week for 5 weeks. Patients in arm I may receive postoperative axillary irradiation if 4 or more nodes are positive and more than 1 axillary level is involved. Quality of life is assessed at baseline and then at 1, 2, 3, and 5 years. Patients are followed annually for 5 years. PROJECTED ACCRUAL: A total of 3,485 patients (1,394 sentinel node-positive and 2,091 sentinel node-negative) will be accrued for this study within 3 years.
Source references
- references
- citation
- Straver ME, Meijnen P, van Tienhoven G, van de Velde CJ, Mansel RE, Bogaerts J, Demonty G, Duez N, Cataliotti L, Klinkenbijl J, Westenberg HA, van der Mijle H, Hurkmans C, Rutgers EJ. Role of axillary clearance after a tumor-positive sentinel node in the administration of adjuvant therapy in early breast cancer. J Clin Oncol. 2010 Feb 10;28(5):731-7. doi: 10.1200/JCO.2008.21.7554. Epub 2009 Dec 28.
- pmid
- 20038733
- type
- RESULT
- citation
- Straver ME, Meijnen P, van Tienhoven G, van de Velde CJ, Mansel RE, Bogaerts J, Duez N, Cataliotti L, Klinkenbijl JH, Westenberg HA, van der Mijle H, Snoj M, Hurkmans C, Rutgers EJ. Sentinel node identification rate and nodal involvement in the EORTC 10981-22023 AMAROS trial. Ann Surg Oncol. 2010 Jul;17(7):1854-61. doi: 10.1245/s10434-010-0945-z. Epub 2010 Mar 19.
- pmid
- 20300966
- type
- RESULT
- citation
- Straver ME, Meijnen P, van Tienhoven G, et al.: Technical aspects of the sentinel node biopsy in the EORTC AMAROS sentinel node trial. [Abstract] 31st Annual San Antonio Breast Cancer Symposium, December 10-14, 2008, San Antonio, Texas. A-1006, 2008.
- type
- RESULT
- citation
- Meijnen P, Rutgers EJT, van de Velde CJH, et al.: EORTC 10981-22023 trial. AMAROS: after mapping of the axilla: radiotherapy or surgery? Trial update. [Abstract] Eur J Cancer 2 (Suppl 3): A-79, 79, 2004.
- type
- RESULT
- citation
- Hurkmans CW, Borger JH, Rutgers EJ, van Tienhoven G; EORTC Breast Cancer Cooperative Group; Radiotherapy Cooperative Group. Quality assurance of axillary radiotherapy in the EORTC AMAROS trial 10981/22023: the dummy run. Radiother Oncol. 2003 Sep;68(3):233-40. doi: 10.1016/s0167-8140(03)00194-4.
- pmid
- 13129630
- type
- RESULT
- citation
- Donker M, Slaets L, van Tienhoven G, Rutgers EJ. [Axillary lymph node dissection versus axillary radiotherapy in patients with a positive sentinel node: the AMAROS trial]. Ned Tijdschr Geneeskd. 2015;159:A9302. Dutch.
- pmid
- 26488192
- type
- DERIVED
- citation
- Donker M, van Tienhoven G, Straver ME, Meijnen P, van de Velde CJ, Mansel RE, Cataliotti L, Westenberg AH, Klinkenbijl JH, Orzalesi L, Bouma WH, van der Mijle HC, Nieuwenhuijzen GA, Veltkamp SC, Slaets L, Duez NJ, de Graaf PW, van Dalen T, Marinelli A, Rijna H, Snoj M, Bundred NJ, Merkus JW, Belkacemi Y, Petignat P, Schinagl DA, Coens C, Messina CG, Bogaerts J, Rutgers EJ. Radiotherapy or surgery of the axilla after a positive sentinel node in breast cancer (EORTC 10981-22023 AMAROS): a randomised, multicentre, open-label, phase 3 non-inferiority trial. Lancet Oncol. 2014 Nov;15(12):1303-10. doi: 10.1016/S1470-2045(14)70460-7. Epub 2014 Oct 15.
- pmid
- 25439688
- type
- DERIVED
- citation
- Donker M, Straver ME, van Tienhoven G, van de Velde CJ, Mansel RE, Litiere S, Werutsky G, Duez NJ, Orzalesi L, Bouma WH, van der Mijle H, Nieuwenhuijzen GA, Veltkamp SC, Helen Westenberg A, Rutgers EJ. Comparison of the sentinel node procedure between patients with multifocal and unifocal breast cancer in the EORTC 10981-22023 AMAROS Trial: identification rate and nodal outcome. Eur J Cancer. 2013 Jun;49(9):2093-100. doi: 10.1016/j.ejca.2013.02.017. Epub 2013 Mar 19.
- pmid
- 23522754
- type
- DERIVED
Source notices and limitations
Discovery and provenance
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- r DFS events (hazard ratio [HR], 0.78; 95% CI, 0.55–1.11).</li><li>No difference in OS was observed.</li></ul></div></li><li>The <a href="/clinicaltrials/NCT00014612">AMAROS</a> trial (NCT00014612) studied ALND and axillary radiation therapy after identification of a positive SLN.[<a href="#cit/section_4.33">33</a>][<a href
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- , 0.78; 95% CI, 0.55–1.11).</li><li>No difference in OS was observed.</li></ul></div></li><li>The <a href="/clinicaltrials/NCT00014612">AMAROS</a> trial (NCT00014612) studied ALND and axillary radiation therapy after identification of a positive SLN.[<a href="#cit/section_4.33">33</a>][<a href="/Common/PopUps/popDefinition.
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- source update dates
- context
- Updated: April 25, 2025
- datetime
- 2025-04-25T12:00:00Z
- display
- April 25, 2025
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