Expanding access to cancer peer support: development of a website to deliver written peer support that meets patients' individual emotional and informational needs while reducing potential harms.

Cancer patients often want information from "peers" with the same diagnosis or treatment. To increase access to this valuable resource, we developed a website to deliver written peer support to cancer patients undergoing stem cell transplant. Because little evidence describes how to optimize benefits or reduce potential harms of written peer support, we gathered multiple forms of stakeholder feedback to inform the website's ethical approach, personalization, design, function, and content: a Community Advisory Board; a longitudinal study of patients' written peer support needs and motivations; focus groups; semi-structured interviews; and usability testing. Findings provide a rich foundation for website development.