Patient-reported outcome measure (PROM) programs for monitoring symptoms among patients treated with immunotherapy: a scoping review

Abstract

Background Monitoring toxicities among patients receiving immune checkpoint inhibitors (ICIs) using patient-reported outcome (PRO) measures (PROMs) is relatively recent. This scoping review aims to guide decision-making in the development of PROMs ICI programs. Methods Four electronic databases were searched from inception to January 2024. Data on PROMs ICI programs (eg, PROMs used, frequency) were extracted. Two authors with established inter-rater reliability screened titles, abstracts, and full texts. A narrative synthesis identified patterns in the data. Results 22 articles described 16 unique multicomponent, electronic PRO programs, mainly developed for remote monitoring of toxicities between appointments. Patients typically completed 18-26 items from the PRO-CTCAE or CTCAE weekly, with high adherence/satisfaction. Commonly monitored symptoms were diarrhea, fatigue, shortness of breath, cough, nausea, decreased appetite, rash, joint pain, pain, and mood. Other features of PROM programs included clinician alerts, with some program only flagging symptoms that had an impact on treatment. Some program also or only sent alerts to patients to contact their clinicians and gave access to symptom management information. In terms of efficacy, the only consistent finding was an increase in QOL. Discussion The findings of this scoping review provide some indication as to which components of a PROM program are promising. However, as the evidence-based for PROMs among patients receiving ICIs is growing, many questions remain, including which symptoms to monitor, using which PROM, and at what frequency. More trials are needed to answer these questions and to determine how best to implement PROM ICI programs in clinical practice.