• Anne-Rose W Schut, Milea J M Timbergen, Kazem Nasserinejad, Thijs van Dalen, Winan J van Houdt, Johannes J Bonenkamp, Stefan Sleijfer, Dirk J Grünhagen, Cornelis Verhoef, Olga Husson, and Dutch Grafiti Group.
• Department of Surgical Oncology, Erasmus MC Cancer Institute Rotterdam, The Netherlands.
• Ann. Surg. 2023 Jun 1; 277 (6): 877883877-883.

ObjectiveTo examine the impact of an active surveillance (AS) approach on the health-related quality of life (HRQoL) of patients with desmoid-type fibromatosis (DTF).Background DataAS is recommended as initial approach in DTF patients. AS might however negatively affect HRQoL due to physical symptoms or stress and anxiety.MethodsIn a prospective observational study, the GRAFITI trial (NTR4714), DTF patients were followed during an initial AS approach for 3 years. HRQoL was assessed by the EORTC QLQ-C30 at baseline, 6, 12 and 24-month follow-up. Patients who completed questionnaires at≥1-time point were included in this analysis of the secondary endpoint. A multivariable linear mixed-effects model with random intercept was conducted to assess trends of HRQoL scores over time and to explore the effect of treatment strategy on HRQoL.ResultsAll 105 patients enrolled in the GRAFITI trial were eligible for the HRQoL analyses. During 24-month follow-up, 75 patients (71%) continued AS and 30 patients (29%) started an active treatment (AT). DTF patients who continued AS demonstrated relatively stable HRQoL scores during follow-up. HRQoL scores of patients who started AT worsened compared to patients who continued AS, although no significant changes in HRQoL score over time were found in the mixed-model analyses. Overall, DTF patients who started AT scored significantly worse on pain (β=10.08, P =0.039) compared to patients who continued AS.ConclusionsAn initial AS approach did not impair HRQoL of DTF patients who continued AS over time, therefore providing further support for AS as the frontline approach in DTF patients. Longitudinal assessment of HRQoL should be part of clinical follow-up to identify patients who may need a change in treatment strategy.Copyright © 2023 The Author(s). Published by Wolters Kluwer Health, Inc.

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