A Foundation for Patient-Centered Core Impact Sets: Key Learnings from Past and Existing Approaches.

Despite growing commitment to patient centricity, challenges persist in consistently identifying the impacts of disease and/or treatment that patients report as most important to them, especially across myriad potential downstream uses. Patient-centered core impact sets (PC-CIS), disease-specific lists of impacts that patients report as most important, are proposed as a solution. But, PC-CIS is a new concept, currently in the pilot stage with patient advocacy groups. We conducted an environmental scan to explore PC-CIS conceptual overlap with past/existing efforts [e.g., core outcome sets (COS)] and to inform general feasibility for further development and operationalization. With guidance and advice from an expert advisory committee, we conducted a search of the literature and relevant websites. Identified resources were reviewed for alignment with the PC-CIS definition, and key insights were gleaned. We identified 51 existing resources and five key insights: (1) no existing efforts identified meet the definition of PC-CIS as we have specified it in terms of patient centricity, (2) existing COS-development efforts are a valuable source of foundational resources for PC-CIS, (3) existing health-outcome taxonomies can be augmented with patient-prioritized impacts to create a comprehensive impact taxonomy, (4) current approaches/methods can inadvertently exclude patient priorities from core lists/sets and will need to be modified to protect the patient voice, and (5) there is need for clarity and transparency on how patients were engaged in individual past/existing efforts. PC-CIS is conceptually unique from past/existing efforts in its explicit emphasis on patient leadership and being patient driven. However, PC-CIS development can leverage many resources from the past/existing related work.