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Brief Title: Use of PRO Onc Assay to Assess HER2 in Patients With Metastatic Breast Cancer
Official Title: Use of the PRO Onc Assay to Assess HER2 Overexpression and Activation in Patients With Metastatic Breast Cancer Whose Tumors Are HER2-Negative by Standard FISH Testing
Study ID: NCT01048099
Brief Summary: This trial will evaluate the clinical significance of the PRO Onc assay and will assess the efficacy of HER2-targeted therapy in patients with HER2-negative breast cancer who have been identified as having HER2 overexpression/activation by the PRO Onc Assay.
Detailed Description: This two-part trial is designed to evaluate the clinical significance of the PRO Onc assay when used in patients with metastatic HER2-negative breast cancer. The first part of this study will determine the incidence of HER overexpression/activation, as determined by the PRO Onc assay, in patients previously judged to have HER2-negative breast cancer by FISH analysis. Blood specimens will be obtained from patients with HER2-negative breast cancer; CTCs will then be isolated and tested for HER2 overexpression/activation using the PRO Onc Assay. When clinically indicated, fine needle aspiration biopsy will also be obtained and submitted for the PRO Onc Assay. If the incidence of HER2 overexpression/activation, as determined by the PRO Onc Assay, is \>10%, the study will proceed to Part 2. Part 2 of this study will assess the efficacy of HER2-targeted therapy in a group of patients with HER2-negative breast cancer who are identified as having HER2 overexpression/activation by the PRO Onc Assay. Patients will be treated with either trastuzumab or pertuzumab. Patients who progress during the first 8 weeks will have HER2-targeted treatment discontinued and will be removed from study. After 8 weeks, patients who have stable disease will be allowed to add chemotherapy to HER2-targeted therapy. Patients who have an objective response to single-agent, HER2-targeted therapy after 8 weeks will continue single-agent therapy.
Minimum Age: 18 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: FEMALE
Healthy Volunteers: No
Florida Cancer Specialists, Fort Myers, Florida, United States
Florida Cancer Specialists, St. Petersburg, Florida, United States
Oncology Hematology Care, Inc., Cincinnati, Ohio, United States
Chattanooga Oncology Hematology Associates, Chattanooga, Tennessee, United States
Tennessee Oncology, PLLC, Nashville, Tennessee, United States
Center for Cancer and Blood Disorders, Fort Worth, Texas, United States
Virginia Cancer Institute, Richmond, Virginia, United States
Name: John D. Hainsworth, M.D.
Affiliation: SCRI Development Innovations, LLC
Role: STUDY_CHAIR