The following represents disclosure information provided by authors of this abstract. The Breast Cancer Symposium Program Committee has reviewed all presenting author disclosure reports, identified potential conflicts of interest, and implemented strategies to manage those areas of conflict, where appropriate. All relationships are considered self-held and compensated unless otherwise noted. Employment/Leadership relationships are considered compensated employment unless otherwise noted. Authors marked with an asterisk (*) are participants in ASCO’s Disclosure Management System Pilot; their disclosure is not limited to subject matter under consideration in this article and includes payments to themselves, an immediate family member (I), and/or their institutions (Inst). For information on the pilot program, or to provide feedback, please visit coipilot.asco.org. L = Leadership, U = Uncompensated, I = Immediate Family Member, B = Both Myself and Immediate Family Member, Inst = My Institution