A Phase I Study of Once-Daily External-Beam Partial-Breast Irradiation (PBI) for Selected Patients With Early Invasive N0 or Non-Invasive Breast Cancer

Detailed Summary

Standard therapy for patients with early stage breast cancer consists of surgery to remove the cancer followed by radiation therapy. One question regarding radiation therapy for early stage breast cancer is whether the entire breast needs to be radiated or only a more limited area surrounding the tumor. Whole-breast irradiation (WBI) is radiation therapy given to the whole breast. Partial-breast irradiation (PBI) is radiation therapy given only to the area of the breast where the cancer was removed (called the "tumor bed"). The investigators hope the option of PBI will reduce side effects from radiation therapy and shorten the radiation treatment process when compared to WBI, since only part of the breast is being treated. The investigators also hope that this will make such treatment more convenient for breast cancer patients. The purpose of the study is to evaluate the the safety of external-beam PBI in selected early breast cancer patients utilizing PBI in ten daily fractions over two weeks. The investigators will also evaluate the local control and the cosmetic results.

Study Details

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Interventions