Active clinical trials for "Breast Neoplasms"

RATIONALE: Studying samples of tumor tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors understand how well patients respond to treatment. PURPOSE: This laboratory study is examining tumor tissue samples from patients with breast cancer treated with bevacizumab on clinical trial ECOG-2100 to learn more about DNA changes and response in these patients.

RATIONALE: Measuring levels of calgranulin A and calgranulin B in the blood of patients with breast cancer in the laboratory may help doctors identify and learn more about biomarkers related to breast cancer. PURPOSE: This laboratory study is measuring calgranulin A and calgranulin B levels in the blood of patients with newly diagnosed stage I, stage II, or stage III breast cancer.

RATIONALE: Studying samples of tumor tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. PURPOSE: This research study is looking at tumor samples from women who have undergone chemotherapy for breast cancer.

RATIONALE: Measuring blood levels of tumor cells in patients with breast cancer may help doctors predict how patients will respond to treatment. PURPOSE: This laboratory study is looking at blood levels of tumor cells in predicting response in patients receiving first-line chemotherapy for stage IV breast cancer.

RATIONALE: Collecting and storing samples of blood and tumor tissue from patients with cancer to test in the laboratory may help the study of cancer in the future. PURPOSE: This clinical trial is studying blood and tumor tissue samples in women with invasive breast cancer, ductal carcinoma in situ, lobular carcinoma in situ, or benign breast disease.

This research study is looking at tissue samples from women with breast cancer who were treated on clinical trial NCCTG-N9831. Studying samples of tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors predict how patients will respond to treatment.

RATIONALE: Gathering information about how often osteonecrosis of the jaw occurs in patients receiving zoledronic acid for bone metastases may help doctors learn more about the disease and provide the best follow-up care. PURPOSE: This clinical trial is studying osteonecrosis of the jaw in patients with cancer who are receiving zoledronic acid for bone metastases.

The objectives of this study is to obtain information of Faslodex use in the treatment of breast cancer in the clinical practice in Argentina.

The purpose is to collect real life data on the use of fulvestrant in normal clinical practice in Austria and document the clinical benefit of fulvestrant treatment.

RATIONALE: New surgery techniques may lessen pain after breast surgery. It is not yet known whether tumescent mastectomy or standard mastectomy results in less pain in women with breast cancer. PURPOSE: This clinical trial is studying pain after tumescent mastectomy compared with pain after standard mastectomy in women with stage I, stage II, or stage III breast cancer.