NCOG-18. RELATIONSHIP BETWEEN RANO-PRO WORKING GROUP STANDARDIZED PRIORITY CONSTRUCTS AND DISEASE PROGRESSION AMONG MALIGNANT GLIOMA PATIENTS AS MEASURED THROUGH CLINICAL OUTCOMES ASSESSMENTS

Recognizing the importance of clinical outcomes assessments (COA), the RANO-PRO Working Group recommends inclusion of core symptoms/functions in clinical care/research for malignant glioma patients. This study evaluated the association between the recommended symptoms (pain, perceived cognition, seizures, aphasia, treatment-specific symptoms) and functions (physical: weakness, walking; and role/social: work, usual activities) and disease progression in these patients. MDASI-Brain Tumor and EQ-5D-3L scores, Karnofsky Performance Status (KPS), and Neurologic Function Score (NFS) were evaluated in relation to disease progression by chi-square tests, independent- and paired-samples t-tests, adjusted for multiple comparisons. Our sample included 336 patients with malignant glioma; 82% white, 64% male, median age=52 (21-79). Imaging study revealed disease progression for 46% of patients. All symptoms except seizures and difficulty concentrating were worse in the group whose imaging showed disease progression versus stable disease, as well as the functions of walking, work, activity, and self-care (0.8 < difference < 1.8). Patients with disease progression were 4 times more likely to have a poor KPS (≤ 80) and worse NFS. Among patients with disease progression (n=112), all symptoms, except seizures, worsened from first assessment to time of progression. Up to 22% of patients reported worsening mobility, self-care, and usual activity; 46% and 35% had worsened KPS and NFS, respectively. Seven symptoms and functions were each individually reported by at least 10% of patients as having worsened the most. Worsening of symptoms and functions was not observed among patients with stable disease, except in difficulty understanding. Identified core symptoms/functions worsen at the time of progression demonstrating the relationship between priority constructs and a traditional tumor response measure while highlighting the importance of longitudinal collection of COA. The pattern of worsening was observed via both patient- and clinician-reported outcomes, emphasizing the utility of COA in clinical care and clinical trials.