• Julie Hallet, Laura E Davis, Alyson L Mahar, Law Calvin H L CHL Susan Leslie Multidisciplinary Clinic for Neuroendocrine Tumors, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada. , Elie Isenberg-Grzeda, Lev D Bubis, Simron Singh, Sten Myrehaug, Haoyu Zhao, Kaitlyn Beyfuss, Lesley Moody, and Natalie G Coburn.
• Susan Leslie Multidisciplinary Clinic for Neuroendocrine Tumors, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada julie.hallet@sunnybrook.ca.
• Oncologist. 2019 Oct 1; 24 (10): 1384-1394.

BackgroundHow to best support patients with neuroendocrine tumors (NETs) remains unclear. Improving quality of care requires an understanding of symptom trajectories. Objective validated assessments of symptoms burden over the course of disease are lacking. This study examined patterns and risk factors of symptom burden in NETs, using patient-reported outcomes.Subjects, Materials, And MethodsA retrospective, population-based, observational cohort study of patients with NETs diagnosed from 2004 to 2015, who survived at least 1 year, was conducted. Prospectively collected patient-reported Edmonton Symptom Assessment System scores were linked to provincial administrative health data sets. Moderate-to-severe symptom scores were presented graphically for both the 1st year and 5 years following diagnosis. Multivariable Poisson regression identified factors associated with record of moderate-to-severe symptom scores during the 1st year after diagnosis.ResultsAmong 2,721 included patients, 7,719 symptom assessments were recorded over 5 years following diagnosis. Moderate-to-severe scores were most frequent for tiredness (40%-51%), well-being (37%-49%), and anxiety (30%-40%). The proportion of moderate-to-severe symptoms was stable over time. Proportion of moderate-to-severe anxiety decreased by 10% within 6 months of diagnosis, followed by stability thereafter. Changes were below 5% for other symptoms. Similar patterns were observed for the 1st year after diagnosis. Primary tumor site, metastatic disease, younger age, higher comorbidity burden, lower socioeconomic status, and receipt of therapy within 30 days of assessment were independently associated with higher risk of elevated symptom burden.ConclusionPatients with NETs have a high prevalence of moderate-to-severe patient-reported symptoms, with little change over time. Patients remain at risk of prolonged symptom burden following diagnosis, highlighting potential unmet needs. Combined with identified patient and disease factors associated with moderate-to-severe symptom scores, this information is important to support symptom management strategies to improve patient-centered care.Implications For PracticeThis study used population-level, prospectively collected, validated, patient-reported outcome measures to appraise the symptoms burden and trajectory of patients with neuroendocrine tumors (NETs) after diagnosis. It is the largest and most detailed analysis of patient-reported symptoms for NETs. Patients with NETs present a high burden of symptoms at diagnosis that persists up to 5 years later, highlighting unmet needs. Early and comprehensive symptom screening and management programs are needed. This information should serve to devise pathways and policies to better support patients, evaluate supportive interventions, and assess the effectiveness of symptom management at the provider, institutional, and system levels.© AlphaMed Press 2019.

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