Clinical Trials

This study will recruit breast cancer patients and survivors to take part in an ongoing study of the issues and concerns surrounding breast cancer survivorship. We will recruit both newly diagnosed patients as well as patients diagnosed within the past 5 years. Those who consent to the study will be asked to provide a series of questionnaires and blood samples over time. These data/samples will create a repository that will enable us to address many specific hypotheses both now and in the future. As part of the study DNA samples will be genotyped for common genetic variants ...

The purpose of this study is to compare the effectiveness of fulvestrant to anastrozole or tamoxifen in treating invasive lobular breast cancer, by measuring the level of the biomarker Ki67 found in tumor tissue before and then after treatment.

The purpose of this study is to develop a breast cancer survivor (BCS) multiscale omics database that includes a complete fecal metagenome (gut microbiome) and fecal metabolome characterization. 

The purpose of this research study is to test whether metformin, a drug commonly used to treat diabetes, is able to get rid of atypia (early cell changes that are thought to be a marker of breast cancer risk) in women at increased risk for breast cancer. There will be testing for the presence of atypia in the breast after metformin is given to see if it can get rid of atypia. The study will compare the effects, good and/or bad, of metformin or placebo on atypia to find out which is better. Note: The standard drug used for the ...

We aim to determine if Molecular Breast Imaging (a new nuclear medicine technique developed at Mayo) can identify malignant breast lesions in women who have atypical ductal hyperplasia, atypical lobular hyperplasia, or lobular carcinoma in situ.

The purpose of this study is to compare the effectiveness of two different combinations of chemotherapy in treating women who have stage II or stage IIIA breast cancer that has spread to the lymph nodes. Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. It is not yet known which regimen of chemotherapy is more effective for breast cancer.

The purpose of this study is to estimate the circulating tumor DNA (ctDNA)detection rate and mutational load in breast cancer patients with indications for regional nodal irradiation.