Understanding What Matters Most to Patients: Establishing the Validity of a Best-Worst Scaling Survey

Patients will complete surveys in three periods. An initial baseline survey, longitudinal assessments completed every 2 weeks over the course of the first three months on study (6 times maximum), and extended assessments that will happen every 3 months after the initial longitudinal period up to 2 years on the study (7 times maximum). Baseline questionnaire will collect demographic and background medical record information. Longitudinal assessments will consist of a BWS questionnaire (patients rate importance of 7 treatment goals), decisional conflict scales, EQ-5D-5L, distress thermometer, and items from PRO-CTCAE. Extended assessments will use same questionnaires as longitudinal assessments.

Patients will participate in 2 interviews (1 initial interview, 1 follow up). These will be cognitive interviews focusing on establishing content validity for BWS questionnaire. Will establish patient understanding of questions asked in BWS, understanding of how preferences affect treatment decisions, expected outcomes, and feedback from patients on other potentially important attributes not included in BWS.