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Background: Pulmonary sarcoidosis is a rare granulomatous disease of unknown aetiology. Heterogeneity in the outcomes measured in trials of treatment for pulmonary sarcoidosis has impacted on the ability to systematically compare findings, contributing to research inefficiency. The FSR-SCOUT study has aimed to address this heterogeneity by developing a core outcome set that represents a patient and health professional consensus on the most important outcomes to measure in future research for the treatment of pulmonary sarcoidosis., Research Design and Methods: systematic review of trial registries, narrative synthesis of published qualitative literature on the patient experience and results of a patient survey contributed to the development of a comprehensive list of outcomes that were rated in a two round online Delphi survey. The Delphi survey was completed by patients/carers and health professionals and the results discussed and ratified at an online consensus meeting., Results: 259 patients/carers and 51 health professionals completed both rounds of the Delphi survey. A pre-agreed definition of consensus was applied and the results discussed at an online consensus meeting attended by 17 patients and 7 health professionals). Fifteen outcomes, across five domains (physiological/clinical, treatment, resource use, quality of life, and death), reached the definition of consensus and were included in the core outcome set., Conclusions: The core outcome set represents a patient and health professional consensus on the most important outcomes for pulmonary sarcoidosis research. The use of the core outcome set in future trials, and efforts to validate its components, will enhance the relevance of trials to stakeholders and will increase the opportunity for the research to contribute to evidence synthesis., Competing Interests: NLH, SLG, PRW, RPB, MAJ, NAK, DEV, JCG, DAC have no competing interests. ESB is an employee of Janssen Research and Development, LLC, who has sponsored research studies in Sarcoidosis. EJS is an employee of Insmed Incorporated. MW employee of Janssen Research & Development. HJ is a sarcoidosis patient. TA-H, HN and NS were employed by the funder (The Foundation for Sarcoidosis Research) during the research., (Copyright: © 2021 SARCOIDOSIS VASCULITIS AND DIFFUSE LUNG DISEASES.)

Background: Clinical trials evaluating different management strategies for pulmonary sarcoidosis may measure different outcomes. This heterogeneity in outcomes can lead to waste in research due to the inability to compare and combine data. Core outcome sets (COS) have the potential to address this issue and here we describe a systematic review of outcomes as the first step in the development of a COS for pulmonary sarcoidosis research., Methods: A search of clinical trial registries for phase II, III and IV trials of pulmonary sarcoidosis was undertaken along with a rapid review of the patient perspective literature. Each study was screened for eligibility and outcomes extracted verbatim from the registry entry or publication then reviewed, grouped and categorised using the COMET taxonomy., Results: 36 trial registry entries and 6 studies on patients' perspective of pulmonary sarcoidosis were included reporting 56 and 82 unique outcomes respectively across 23 domains. The most frequently reported outcome domain was "respiratory, thoracic and mediastinal outcomes". However, the patients' perspective literature identified outcomes in the "personal circumstances" and "societal/carer burden" domains that were not reported in any of the included trial registrations., Conclusions: Using both clinical trial registry data and published literature on patients' perspective has allowed rapid review of outcomes measured and reported in pulmonary sarcoidosis research. The use of multiple sources has led to the development of a comprehensive list of outcomes that represents the first step in the development of a COS for use in future pulmonary sarcoidosis research., Competing Interests: COMET – Core Outcome Measures in Effectiveness Trials; COS - Core Outcome Set; PROM – Patient Reported Outcome MeasureThe datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.NLH, SLG, PRW, RPB, MAJ, NAK, DEV, JCG, DAC have no competing interests. ESB is an employee of Janssen Research and Development, LLC, who has sponsored research studies in Sarcoidosis. EJS is an employee of Insmed Incorporated. MW employee of Janssen Research & Development. HJ is a sarcoidosis patient. TA-H, HN and NS were employed by the funder (The Foundation for Sarcoidosis Research) during the research.This study was funded by the Foundation for Sarcoidosis Research (https://www.stopsarcoidosis.org/). The Funder was an active member of the Study Management Group, they facilitated organization of meetings with the Study Steering Committee, contributed to the study design and reviewed the manuscript.NLH: Conceived and designed the analysis. Performed the search, extracted and categorised outcomes. Drafted the manuscript. SLG: Conceived and designed the analysis. Performed the search, extracted and categorised outcomes. Reviewed and approved the manuscript. PRW: Conceived and designed the analysis. Supervised the project. Reviewed and approved the manuscript. DAC: Contributed to the study design. Contributed to outcome categorisation and data analysis. Reviewed and approved the manuscript. NS, EB, RB, HJ, NK, ES, DV, MW, TA-H, HN, JG: Contributed to the study design. Reviewed and approved the manuscript., (Copyright: © 2021 SARCOIDOSIS VASCULITIS AND DIFFUSE LUNG DISEASES.)