The Influence Of Patient Engagement On The Design And Implementation Of A Clinical Trial To Improve Cancer Care Delivery.

223Background: We have engaged 10 patient partners in the development and implementation of S1415CD, a five-year pragmatic clinical trial currently in year 3 assessing the effectiveness of a guideline-based colony stimulating factor standing order intervention (NCT02728596). Patient partners serve as part of a 21-person External Stakeholder Advisory Group (ESAG), which also includes providers, payers and guidelines experts. This abstract explores the influence of patient partners on the design, tools and implementation of S1415CD Methods: Patient partners advise the study team on protocol development, patient-facing materials and implementation challenges over four teleconferences each year, annual in-person meetings and targeted email communication. All patient partner input from 2014-2017 was tracked, collected and reviewed for impact on the trial. Results: Input from patient partners led to the refinement of the study’s patient-reported outcome (PRO) survey questions, the creation of a highly utilized ...