Toward a Core Outcome Measurement Set for Polymyalgia Rheumatica: Report from the OMERACT 2018 Special Interest Group.

OBJECTIVE: To report the progress of the Outcome Measures in Rheumatology (OMERACT) Polymyalgia Rheumatica (PMR) Working Group in selecting candidate instruments for a core outcome measurement set. METHODS: A systematic literature review identified outcomes measured and instruments used in PMR studies, and a respondent survey and raw data analysis assessed their domain match and feasibility. RESULTS: Candidate instruments were identified for pain [visual analog scale/numerical rating scale (VAS/NRS)], stiffness (VAS/NRS and duration), and physical function (Health Assessment Questionnaire-Disability Index/modified Health Assessment Questionnaire). Domain match and feasibility assessments were favorable; however, validation in PMR was lacking. CONCLUSION: Further assessment of candidate instruments is required prior to recommending a PMR core outcome measurement set.

The OMERACT Core Domain Set for Outcome Measures for Clinical Trials in Polymyalgia Rheumatica.

OBJECTIVE: To inform development of a core domain set for outcome measures for clinical trials in polymyalgia rheumatica (PMR), we conducted patient consultations, a systematic review, a Delphi study, and 2 qualitative studies. METHODS: Domains identified by 70% or more of physicians and/or patients in the Delphi study were selected. The conceptual framework derived from the 2 qualitative research studies helped inform the meaning of each domain and its relationship to the others. The draft core domain set was refined by further discussion with patients and physicians who had participated in the Delphi study. At the Outcome Measures in Rheumatology (OMERACT) 2016, the domains were discussed and prioritized by 8 breakout groups. Formal voting took place at the end of the workshop and in the final plenary. RESULTS: Ninety-three percent of voters in the final plenary agreed that the inner core of domains considered mandatory for clinical trials of PMR should consist the following: laboratory markers of systemic inflammation, pain, stiffness, and physical function. Patient's global and fatigue were considered important but not mandatory (outer core). The research agenda included psychological impact, weakness, physical activity, participation, sleep, imaging, and health-related quality of life. CONCLUSION: This core domain set was considered sufficiently well-defined that the next step will be to apply the OMERACT Filter 2.0 Instrument Selection Algorithm to select candidate instruments for a subsequent "deeper dive" into the data. This will allow instruments to be mapped onto each of our core domains to derive a core outcome set for PMR.

A Patient-reported Outcome Measure for Effect of Glucocorticoid Therapy in Adults with Inflammatory Diseases Is Needed: Report from the OMERACT 2016 Special Interest Group.

OBJECTIVE: The need for a standardized instrument to measure the effect of glucocorticoid (GC) therapy has been well documented in the literature. The aim of the first GC Special Interest Group was to define a research agenda around the development of a patient-reported outcome measure (PROM) in this area. METHODS: The results of a background literature search and the preliminary results of a pilot survey and 2 qualitative studies were presented to facilitate the development of a research agenda. RESULTS: It was agreed that there was a need for a data-driven PROM that identified both positive and negative effects of GC therapy to be used across all inflammatory indications for systemic GC use in adults. A research agenda was developed, consisting of further qualitative work to assess the effect of GC across different groups including various indications for GC use, different age groups, different dosages, and duration of treatment. CONCLUSION: There was agreement on the need for a PROM in this area and a research agenda was set.