Effect of a self-management intervention for newly diagnosed inflammatory arthritis: study protocol for a randomized controlled trial

This randomized controlled trial will provide essential insights about the efficacy of a targeted self-management intervention for newly diagnosed patients with inflammatory arthritis. If successful, the NISMA intervention could significantly enhance non-pharmacological management, providing a comprehensive approach to addressing both physical and psychological needs in caring for patients newly diagnosed with IA. TRIAL REGISTRATION {2B}: ClinicalTrials.gov, nr.: NCT06533423. Registered on December 19, 2024. PROTOCOL VERSION {3}: 22.09.2025. Version 2.