Randomized Boost Versus no Boost Irradiation of Early Breast Cancer
NCT ID: NCT02295033
Last Updated: 2014-11-19
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
PHASE3
INTERVENTIONAL
1989-05-31
Brief Summary
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Detailed Description
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The objective of this trial is to assess the local recurrence rate and the cosmetic result in women who have had conservative resection of small breast cancers and who are randomly assigned after postoperative whole-breast irradiation to no boost vs. 15-16 Gy boost (patients with microscopically complete resections) or 10 Gy vs. 25-26 Gy boost (patients with microscopically incomplete resections).
Following tumorectomy, all patients receive radiotherapy for 5 weeks.
Patients with microscopically negative resection margins are randomized to one of 2 groups: no further radiotherapy; or a radiotherapy boost with either external-beam radiotherapy or an interstitial implant.
Patients with microscopically positive resection margins are also randomized to receive either lower dose or higher dose radiotherapy boosts by external beam or interstitial implant.
Patients with positive lymph nodes are encouraged to receive at least 6 courses of adjuvant or perioperative chemotherapy prior to radiotherapy provided radiotherapy is initiated within 6 months of surgery. All other patients begin radiotherapy within 9 weeks of surgery. All postmenopausal women with positive lymph nodes receive oral tamoxifen daily for 2 years.
Conditions
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Study Design
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TREATMENT
Study Groups
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Boost irradiation
Boost irradiation
No boost irradiation
No interventions assigned to this group
Interventions
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Boost irradiation
Eligibility Criteria
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Inclusion Criteria
* Lumpectomy with 1-2 cm margin required within 9 weeks of initiation of protocol radiotherapy
* Axillary dissection required for premenopausal patients and recommended for postmenopausal patients (Irradiation of clinically negative axilla is an acceptable alternative to axillary dissection in postmenopausal patients)
Exclusion Criteria
* Gross residual disease in the breast (re-excision allowed if there is gross residual disease after first surgical procedure)
* Multiple foci of tumor in more than 1 quadrant
* Previous or concurrent malignant tumor in contralateral breast
* In situ carcinoma of the breast, without invasive tumor
* Tumorectomy performed more than 9 weeks before the start of radiotherapy in cases where no adjuvant chemotherapy is given and more than 6 months before the start of radiotherapy if chemotherapy is given
* Previous history of malignant disease, except adequately treated carcinoma in situ of the cervix or basal cell carcinoma of the skin
* Concurrent pregnancy or lactation
* Eastern Cooperative Oncology Group performance scale more than 2
70 Years
FEMALE
No
Sponsors
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European Organisation for Research and Treatment of Cancer - EORTC
NETWORK
Responsible Party
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References
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Vrieling C, van Werkhoven E, Maingon P, Poortmans P, Weltens C, Fourquet A, Schinagl D, Oei B, Rodenhuis CC, Horiot JC, Struikmans H, Van Limbergen E, Kirova Y, Elkhuizen P, Bongartz R, Miralbell R, Morgan DA, Dubois JB, Remouchamps V, Mirimanoff RO, Hart G, Collette S, Collette L, Bartelink H; European Organisation for Research and Treatment of Cancer, Radiation Oncology and Breast Cancer Groups. Prognostic Factors for Local Control in Breast Cancer After Long-term Follow-up in the EORTC Boost vs No Boost Trial: A Randomized Clinical Trial. JAMA Oncol. 2017 Jan 1;3(1):42-48. doi: 10.1001/jamaoncol.2016.3031.
Bartelink H, Maingon P, Poortmans P, Weltens C, Fourquet A, Jager J, Schinagl D, Oei B, Rodenhuis C, Horiot JC, Struikmans H, Van Limbergen E, Kirova Y, Elkhuizen P, Bongartz R, Miralbell R, Morgan D, Dubois JB, Remouchamps V, Mirimanoff RO, Collette S, Collette L; European Organisation for Research and Treatment of Cancer Radiation Oncology and Breast Cancer Groups. Whole-breast irradiation with or without a boost for patients treated with breast-conserving surgery for early breast cancer: 20-year follow-up of a randomised phase 3 trial. Lancet Oncol. 2015 Jan;16(1):47-56. doi: 10.1016/S1470-2045(14)71156-8. Epub 2014 Dec 9.
Other Identifiers
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EORTC-22881-10882-ROG-BCG
Identifier Type: -
Identifier Source: org_study_id