Background: Adolescent and young adult (AYAs) cancer survivors experience high rates of financial toxicity (FT), which is associated with poorer health outcomes. FT may disproportionately affect AYAs with unmet health-related social needs (HRSN), such as food or housing insecurity. Needs navigation may be an effective intervention to reduce financial distress, however, engagement has been a challenge in prior adult-directed interventions. We hypothesize that a hybrid navigation delivery model with community organization support and digital delivery will reduce financial distress and improve health outcomes. In a pilot study of AYA-NAV, an AYA-directed needs navigation intervention, we report patient engagement among participants. Methods: Eligible AYAs were 15-39 years old, Spanish- or English-speaking, receiving curative-intent treatment for cancer, and screened positive for FT (Comprehensive Score of Financial Toxicity < 22) or unmet HRSN (food, housing, transportation, or utilities insecurity). Participants were referred for a consultation with the Patient Advocate Foundation (PAF), a national organization that provides case management and navigation support for people facing life limiting illness. At month 1, participants were referred to findhelp.org, a digital platform of comprehensive resources to facilitate resolution of unmet HRSN. Monthly check-ins were conducted by the study team to assess acceptability, intervention fidelity, and provide additional navigation support. We plan to enroll 30 participants on this study. Results: Of 19 AYAs that completed screening to date, 13 met criteria for FT or unmet HRSN; 13 (100%) agreed to AYA-NAV participation. To date, of 46 check-ins initiated by the study team, 33 (72%) were completed. All AYAs connected with the study team at least once during the 6-month duration of the study by text, phone, and/or in-clinic. Ten out of 13 (77%) participants reported that they spoke with a PAF case manager, and 7 (70%) of those said it was helpful. If the patient was unable to connect with PAF, more than half (55%) requested to be reconnected during a monthly check-in. Eight of the 13 (62%) participants visited findhelp.org; 6 (75%) of those found the digital platform to be helpful. Most patients referenced the high usability of findhelp.org, and 55% stated they connected to community resources via findhelp.org. Patients qualitatively reported challenges to intervention participation including medical complications, scheduling conflicts, and work commitments. Conclusions: Preliminary data demonstrate high patient engagement and intervention fidelity during a pilot feasibility study of AYA-NAV. Flexible modes for data collection and intervention delivery are important to inclusion of and retention of AYAs in hybrid navigation delivery models. Clinical trial information: NCT06072833.