RT Journal Article T1 Incorporating the Patient Voice in Sarcoma Research: How Can We Assess Health-Related Quality of Life in This Heterogeneous Group of Patients? A Study Protocol. A1 den Hollander, Dide A1 Fiore, Marco A1 Martin-Broto, Javier A1 Kasper, Bernd A1 Casado Herraez, Antonio A1 Kulis, Dagmara A1 Nixon, Ioanna A1 Sodergren, Samantha C A1 Eichler, Martin A1 van Houdt, Winan J A1 Desar, Ingrid M E A1 Ray-Coquard, Isabelle A1 Piccinin, Claire A1 Kosela-Paterczyk, Hanna A1 Miah, Aisha A1 Hentschel, Leopold A1 Singer, Susanne A1 Wilson, Roger A1 van der Graaf, Winette T A A1 Husson, Olga K1 bone sarcoma K1 health-related quality of life K1 patient-reported outcomes K1 sarcomas K1 soft tissue sarcoma AB Sarcomas comprise 1% of adult tumors and are very heterogeneous. Long-lasting and cumulative treatment side-effects detract from the (progression-free) survival benefit of treatment. Therefore, it is important to assess treatment effectiveness in terms of patient-reported outcomes (PROs), including health-related quality of life (HRQoL) as well. However, questionnaires capturing the unique issues of sarcoma patients are currently lacking. Given the heterogeneity of the disease, the development of such an instrument may be challenging. The study aims to (1) develop an exhaustive list of all HRQoL issues relevant to sarcoma patients and determine content validity; (2) determine a strategy for HRQoL measurement in sarcoma patients. We will conduct an international, multicenter, mixed-methods study (registered at clinicaltrials.gov: NCT04071704) among bone or soft tissue sarcoma patients ≥18 years, using EORTC Quality of Life Group questionnaire development guidelines. First, an exhaustive list of HRQoL issues will be generated, derived from literature and patient (n = 154) and healthcare professional (HCP) interviews (n = 30). Subsequently, another group of sarcoma patients (n = 475) and HCPs (n = 30) will be asked to rate and prioritize the issues. Responses will be analyzed by priority, prevalence and range of responses for each item. The outcome will be a framework for tailored HRQoL measurement in sarcoma patients, taking into account sociodemographic and clinical variables. SN 2072-6694 YR 2020 FD 2020-12-22 LK http://hdl.handle.net/10668/17128 UL http://hdl.handle.net/10668/17128 LA en DS RISalud RD Apr 9, 2025