This document discusses the different roles patients can play in health technology assessment and decision making regarding new treatments. It identifies four types of patient voice: 1) as information providers who can provide key details about diseases and treatments to assessment bodies; 2) as decision makers who should be directly involved in decision making committees; 3) as policy makers who can help shape the processes by which patient voice is incorporated; and 4) as individuals making their own informed choices about treatments. The document argues that all four types of patient voice are important and should be involved in the assessment and decision making process.