During the open pilot study, which will take place over a 3-month period, up to 15 patients will be enrolled to receive the C3PO intervention. At the conclusion of this period, exit interviews will be conducted to gather feedback on the implementation of the intervention. The primary objective of this phase is to assess the strengths and weaknesses of the intervention in order to inform potential improvements before advancing to the next phase of the study

In Phase II of the study, patients will be randomized 1:1 by site and cancer type to either the C3PO intervention group or the usual care group. Those assigned to the C3PO arm will receive navigation services at SCC, along side collaborative care meetings (C3PO). These meetings, held without the patient present, will focus on discussing the patient's overall needs, such as potential adverse effects of cancer treatment, the impact of co-morbid conditions, etc,.

Patients randomized to the usual care group will receive navigation services only and will not participate in the C3PO intervention during the initial 6 months. However, after this 6-month period, they will become eligible to receive the C3PO intervention, following the same process as the initial intervention group.

Participants assigned to C3PO will receive usual navigation services with a Native American Navigator (NAN) at the SCC but will begin having their clinical care and social needs discussed during monthly collaborative care meetings. For the Open Pilot, this will include all participants (no randomization or usual care group). The collaborative care coordinator will meet with the participant virtually or in-person before and after collaborative care meetings as they are available and as needs arise.

All participants will complete the Patient Satisfaction with Cancer Care (PSCC) at baseline and monthly during the study duration.

Completed and all missed visits will be recorded in SCC's appointment database, which will be queried via the institutional software. The NANP cohort will be run through this query monthly to identify missed oncology visits, and the information will be entered into the NANP database. The proportion of missed visits for all navigated patients will be tallied monthly. Types of missed visits include no-show, canceled by SCC, rescheduled by pt, other, and unknown.

For treatment alignment, we will assess for alignment between treatment recommended and fitness (measured as met vs. not met) and alignment between treatment received and recommended (measured as met vs. not met). Alignment between fitness and treatment will be assessed using National Comprehensive Cancer Network (NCCN) recommendations and agreed upon by the physicians.