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Development of a single‑item patient‑reported measure of treatment side‑effect burden in clinical trials of rheumatic and musculoskeletal diseases using stakeholder input and large language model refinement

Berthelsen, Dorthe, Horgan, Ben, Simon, Lee, Ioannidis, John P. A., Goel, Niti and Choy, Ernest ORCID: https://orcid.org/0000-0003-4459-8609 2026. Development of a single‑item patient‑reported measure of treatment side‑effect burden in clinical trials of rheumatic and musculoskeletal diseases using stakeholder input and large language model refinement. Seminars in Arthritis and Rheumatism 79 , 153026. 10.1016/j.semarthrit.2026.153026

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License Start date: 19 June 2026

Abstract

Objectives : To build on existing evidence regarding single-item measurement instruments of patient-reported bother or trouble from medical side effects in individuals with rheumatic and musculoskeletal diseases (RMDs). Further, to collect input from the OMERACT community through a structured survey that rated and ranked available options and to seek agreement to advance one or more of these measures for use as exploratory outcomes in future clinical trials. Methods : At OMERACT 2025 we presented and discussed survey results for domain match, feasibility and ranking of six candidate instruments of bother or trouble from side effects. Collaborator feedback - including comments from patients, clinicians, and researchers - was synthesized with a large-language-model (LLM) to identify key concerns and guide refinement of the instrument’s relevance, clarity, and acceptability. The LLM-assisted synthesis of participant comments resulted in a new, single-item instrument designed to improve patient safety reporting from the patient’s perspective. Results : The merged and modified version of the instrument was presented at the OMERACT 2025 meeting, where 33 participants approved it as a reasonable approach to incorporate collaborator input. The proposed instrument is feasible (32 [97%]) and voting supported advancing its further assessment (30 [91%]) as an exploratory outcome measurement instrument in coming RMD trials. Conclusion : We developed a novel single-item instrument. This is the first known application of LLMs in refining a patient-reported outcome instrument for clinical trials. It is designed to capture the patient perspective on symptomatic treatment-related side effects in RMDs and is supported for exploratory use in trials.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Schools > Medicine
Additional Information: For full list of authors see: https://doi.org/10.1016/j.semarthrit.2026.153026 License information from Publisher: LICENSE 1: URL: http://creativecommons.org/licenses/by/4.0/, Start Date: 2026-06-19
Publisher: Elsevier
ISSN: 0049-0172
Date of First Compliant Deposit: 26 June 2026
Last Modified: 05 Aug 2026 15:30
URI: https://orca.cardiff.ac.uk/id/eprint/187752

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