Patient Navigation for Improving Transition Success Among Multiply Disadvantaged Young Adult Survivors of Childhood Cancer

The goal of this clinical trial is to improve the successful healthcare transition from pediatric to adult-focused care for childhood cancer survivors. The main questions it aims to answer are * Receipt of the intervention (vs. standard of care control) will increase the proportion of CCS achieving transition success to adult-focused survivorship care from 50% to 70%. * Receipt of the intervention (vs. standard of care control) will significantly reduce patients' unmet HRSN. * Intervention effectiveness will be moderated by sociodemographic factors (gender, race/ethnicity, insurance status), medical risk for late effects, HRSN burden, and patient-reported outcomes (quality of life, self-efficacy). Researchers will compare those that receive intervention versus standard of care. Patients are randomized to either an intervention group, receiving structured PN-led sessions and tailored support for care transitions, or a control group receiving standard follow-up by a nurse case manager. High-HRSN patients in the intervention arm get monthly check-ins and coordinated handoffs to adult care providers for continuity.