Preoperative Accelerated Partial Breast Irradiation (APBI) for Women With Stage I and Select IIA Breast Cancer — GCC 0919  

Clinical Trial Summary

The purpose of this study is to examine the feasibility to deliver PBI before the lumpectomy is performed. By administering the PBI before the lumpectomy, a smaller volume of breast tissue may be exposed to radiation. The PBI method used in this study is 3D (three dimensional) conformal external beam irradiation. 3D-conformal external beam irradiation uses an x-ray beam to deliver the radiation dose. Approximately 3 weeks after completion of the PBI, the cancer will be surgically removed.

This study will learn about the good and bad effects of 3D-conformal external beam irradiation PBI when given before the cancer has been removed by lumpectomy. The study will also learn about the feelings women have about how their breast looks after PBI and surgery.

This study will evaluate the feasibility, cosmetic results, complication rates, and local control rate of 3D-CRT confined to the region of the lumpectomy cavity for patients with Stage I and IIa (less than or equal to 3 cm) carcinoma of the breast (non-lobular histology) treated with APBI using 3D-CRT before lumpectomy. For selected patients with Stage I and II breast carcinoma, 3D-CRT delivered to the primary tumor preoperatively is technically reproducible with acceptable complication rates. Cosmetic results after partial breast irradiation before lumpectomy will be comparable to that obtained after whole breast external beam radiation therapy. The local tumor control rate in the breast after partial breast irradiation therapy followed by lumpectomy will be comparable to that of conventional external beam radiation therapy, with less inconvenience and potentially less cost to the patient, given the selection criteria which minimize the risk of clinically significant multicentric or extensive residual carcinoma following lumpectomy. ;

Study Design

Related Conditions & MeSH terms

• Breast Cancer
• Breast Neoplasms