This document provides an overview of comparative effectiveness research (CER), patient-centered outcomes research (PCOR), and the Patient-Centered Outcomes Research Institute (PCORI). It discusses the history and establishment of PCORI in 2010, its focus on patient-centered outcomes directly impacting patients' lives, and its funding priorities and first round of funded projects examining topics like treatment options, healthcare systems, communication/dissemination, and disparities. The agenda outlines a symposium focused on stakeholder engagement in CER and PCOR.