Genetic Analysis in Blood and Tumor Samples From Patients With Advanced or Metastatic Estrogen Receptor Positive and HER2 Negative Breast Cancer Receiving Palbociclib and Endocrine Therapy
Status: ACTIVE_NOT_RECRUITING
Study type: OBSERVATIONAL
Conditions: Advanced Breast Carcinoma|Locally Advanced Breast Carcinoma|Metastatic Breast Carcinoma|Recurrent Breast Carcinoma|Stage III Breast Cancer AJCC v7|Stage IIIA Breast Cancer AJCC v7|Stage IIIB Breast Cancer AJCC v7|Stage IIIC Breast Cancer AJCC v7|Stage IV Breast Cancer AJCC v6 and v7
Interventions: PROCEDURE: Biopsy|PROCEDURE: Biospecimen Collection|OTHER: Laboratory Biomarker Analysis
Sponsor: Mayo Clinic
Collaborators: National Cancer Institute (NCI)