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Brief Title: Radiation Therapy During and After Lumpectomy in Treating Women With Stage I or Stage II Breast Cancer
Official Title: Phase II Study of Intra-operative Electron Irradiation and External Beam Irradiation After Lumpectomy in Patients With Stage T1N0M0 or T2N0M0 Breast Cancer
Study ID: NCT00647582
Brief Summary: RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells. Giving radiation therapy during and after surgery may kill any tumor cells that remain after surgery. PURPOSE: This phase II trial is studying the side effects of giving radiation therapy during and after lumpectomy and to see how well it works in treating women with stage I or stage II breast cancer.
Detailed Description: OBJECTIVES: * To determine the feasibility and acute tolerability of intraoperative electron radiotherapy (IOERT) and external-beam radiotherapy (EBRT) after lumpectomy in women with stage I or II breast cancer treated with breast conservation therapy. * To determine the local tumor control and distant tumor control rates in these patients. * To determine the long-term side effects and cosmetic outcome of IOERT to the tumor bed and EBRT after lumpectomy in these patients. OUTLINE: Patients undergo standard lumpectomy. Patients with negative lymph nodes undergo intraoperative electron radiotherapy to the tumor bed. Beginning 2-8 weeks after surgery, patients undergo whole breast external beam radiotherapy once daily for 24-27 fractions. After completion of study treatment, patients are followed periodically for up to 8 years.
Minimum Age: 18 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: FEMALE
Healthy Volunteers: No
Name: William W. Wong, MD
Affiliation: Mayo Clinic
Role: STUDY_CHAIR