Patient recruitment is one of the biggest bottlenecks in clinical research. Failure to meet enrollment targets creates costly delays, and more importantly, impacts the time that it takes to bring new medicines into the hands of patients that need them. And at the same time, there is an imperative to improve diversity and inclusion of trial participants. CHI’s Recruitment & Engagement track provides the latest strategies and technologies to improve these critical steps in trial planning and execution. Part A: Enrollment Planning and Patient Recruitment highlights strategies to enroll for global trials, leverage data analytics to improve enrollment and diversity, and tactics to improve up-front enrollment planning. Part B: Patient Engagement and Retention through Communities and Technology explores pathways to engage diverse populations, how to leverage technology without losing site of the participant’s user experience and potential technology burden, and strategies to support sites given ongoing resource constraints.