Real-world evaluation of ImmuCare-PRO patient-reported outcomes in melanoma patients treated with immune checkpoint inhibitors.

Background: Toxicity profile of immune checkpoint inhibitors (ICI) poses challenges for early detection of immune-related adverse events (IrAEs). In oncology, patient-reported outcomes (PROs) are reported to have a beneficial effect; however, their efficacy for IrAE detection in melanoma patients remains unclear. A remote patient-monitoring system was created in our department; we investigated its real-world impact in detecting grade 2 or above IrAEs occurring during ICI treatment in melanoma patients. Patients and methods: Patients receiving ICI for a melanoma were followed using a weekly online questionnaire containing 11 symptoms suggestive of IrAE. Moderate/severe symptoms generated an alert score and an intervention by an oncology nurse or physician. The system's performance in detecting grade 2 or above IrAEs, as well as reasons for missed detections, were retrospectively assessed. Results: A total of 5202 questionnaires completed by 136 patients led to 783 (15.0%) alert scores; 64 of them were associated with 69 grade 2 or above IrAEs, with 22 (34.4%) questionnaires correctly detecting 27 grade 2 or above IrAEs, saving a mean 4.1 days on the next scheduled visit and leading to only one emergency room visit. Forty-two grade 2 or above IrAEs (mainly blood disorders, Conclusion: The ImmuCare-PRO system correctly detected a third of moderate-to-severe IrAEs, and most of those had clinical impact such as skin toxicities, colitis, and rheumatological IrAEs. This enables earlier management and could avoid unnecessary emergency room visits.