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Radiation Therapy in Treating Women Undergoing Lumpectomy for Stage I or Stage IIA Breast Cancer

Breast Cancer Clinical Trial

Official title:
Phase II Study of Intra-operative Electron Irradiation and Hypofractionated External Beam Irradiation After Lumpectomy in Patients With Stage T1N0M0 or T2N0M0 Breast Cancer

Clinical Trial Summary

RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells. Giving intraoperative radiation therapy after lumpectomy followed by external-beam radiation therapy may kill any tumor cells that remain after surgery.

PURPOSE: This phase II trial is studying the side effects and how well radiation therapy works in treating women undergoing lumpectomy for stage I or stage IIA breast cancer.

Clinical Trial Description

OBJECTIVES:

- To determine the feasibility and acute patient tolerance of intraoperative electron irradiation (IOERT) and hypofractionated external-beam irradiation (HYPORT) after lumpectomy for patients with stage I-IIA breast cancer treated with breast conservation therapy.

- To determine the local tumor control and distant tumor control rates for patients with stage I-IIA breast cancer treated with breast conservation therapy using IOERT and HYPORT after lumpectomy.

- To determine the long-term side effects and cosmetic outcome of IOERT to tumor bed and HYPORT after lumpectomy for patients with stage I-IIA breast cancer.

OUTLINE: Patients undergo lumpectomy per standard procedures. Patients undergo intraoperative electron irradiation (IOERT) to the tumor bed right after completion of lumpectomy with axillary lymph node dissection or sentinel lymph node biopsy.

Beginning 2-6 weeks after lumpectomy with axillary lymph node dissection/sentinel lymph node sampling and IOERT, patients receive hypofractionated external-beam irradiation once daily for 16 days.

After completion of study treatment, patients are followed at 3 months, every 6 months for 5 years, and then annually thereafter for 8 years. ;

Study Design

Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00602108
Study type Interventional
Source Mayo Clinic
Contact
Status Completed
Phase Phase 2
Start date January 2005
Completion date August 2007
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