Background: Outcome measurement is essential to progress clinical practice and improve patient care.
Aim: To develop a Core Outcome Set for best care for the dying person.
Design: We followed the Core Outcome Measures in Effectiveness Trials (COMET) Initiative guidelines, which involved identifying potential outcomes via a systematic literature review (n = 619 papers) and from participants in the "iLIVE" project (10 countries: 101 patients, 37 family members, 63 clinicians), followed by a two-round Delphi study, and a consensus meeting.