In this hybrid type 1 effectiveness-implementation study, the investigators will conduct a stepped-wedge cluster randomized trial with cancer centers (n=4; 484 patients) randomized to sequentially deliver treatment as usual (TAU) then ENDURE to patients with head and neck cancer undergoing surgery and postoperative radiation therapy (PORT). The trial will assess the effect of ENDURE vs TAU on delays starting PORT (primary objective), racial disparities in PORT delay (secondary objective), and the underlying mechanisms of ENDURE (secondary objective). The investigators will concurrently conduct a mixed-methods study with quantitative measures of implementation outcomes and qualitative data about implementation determinants from semi-structured interviews with key stakeholders and site visits (secondary objective).
The goal of this clinical trial is to compare the effectiveness of a navigation-based multilevel intervention (ENDURE) with treatment as usual at decreasing delays starting guideline-adherent postoperative radiation therapy among patients with head and neck cancer. The main questions the trial aims to answer are:~Does ENDURE decrease delays starting PORT relative to treatment as usual?~What are the mechanisms through which ENDURE reduces treatment delays?~What are the barriers and facilitators to implementing ENDURE across diverse clinical settings?