Study for Using Radiosurgery on Limited Metastases of Breast Cancer

Not Applicable

Completed

Interventions: Radiation: Hypofractionated Stereotactic Body Radiation Therapy

Brief Summary: The purpose of this study is to evaluate whether radiosurgery, along with standard chemotherapy, immunotherapy (the treatment of cancer by modulating the immune system and immune response), or hormonal therapy, affects the quality and length of life. The standard therapy is surgery, radiation therapy, or chemotherapy alone or in any combination. A second purpose of this study is to determine if the levels of a special type of protein (called cytokines) found in the blood are related to the quality of life while on this treatment.

Detailed Description: Before treatment begins, you will have a physical exam and blood tests. Physical evaluations and blood tests will be done each week while you are receiving treatment, and at follow-up visits. You will be seen for follow-up evaluations 4 weeks after treatment is completed, and every three months thereafter. You will be asked to fill out a Quality of Life questionnaire, which should take 5-10 minutes to complete. This will be done prior to treatment and at your follow-up visits. You will receive high dose radiation therapy directed at the site of metastasis. This treatment will be given once a day, 5 times a week (Monday through Friday) for one to four weeks depending on the location and size of the disease to be treated.

Recruitment & Eligibility

Inclusion Criteria

Age: no limit
Karnofsky performance status (KPS) ≥ 70
No more than 5 metastatic sites involving one or more different organs (liver, lung or bone).
The size of the lesion must be such that it can be safely treated to sterilizing radiation doses according to the rules in the protocol.
Previously treated lesions are not eligible unless the prescribed dose can be safely delivered.
Concurrent therapy is allowed and recommended. The chemotherapy protocol type and schedule are at the discretion of the medical oncologist.
Informed consent must be obtained.
Pregnancy test must be negative for women of child bearing potential

Exclusion Criteria

Inability of patient to be followed longitudinally as specified by protocol.
Technical inability to achieve required dose based on safe dose constraints required for radiosurgery.
Women who are pregnant or nursing.
Failure to meet requirements in Inclusion Criteria
Contraindications to radiation.

Arm && Interventions

Group	Intervention	Description
Hypofractionated Stereotactic Body Radiation Therapy	Hypofractionated Stereotactic Body Radiation Therapy	Use of Hypofractionated Stereotactic Body Radiation Therapy for limited metastases with breast cancer primary.

Primary Outcome Measures

Name	Time	Method
Overall Survival	6 years	The percent of patients that survived from date of enrollment until 6 year follow-up visit

Secondary Outcome Measures

Name	Time	Method
Percent of Patients With Lesion Local Control	6 years	Lesion local failure was scored as an event if any treated lesion increased by greater than or equal to 20% using the Response Evaluation Criteria in Solid Tumors criteria or local failure was confirmed pathologically. Lesion control includes all participants that did not fall into the category of lesion failure.
Number of Participants Who Experienced a Grade 4 or 5 Toxicity	6 years	Number of participants who experienced a grade 4 or 5 toxicity