MDS PD e‐Diary: A New Patient‐Centered Digital Tool in Development for People with Parkinson's Disease

Background There is a need to better evaluate Parkinson's disease (PD) impact on daily lives of People with Parkinson's (PwP). Objectives To conceptualize a novel digital tool, the MDS PD e‐Diary that has been commissioned by the International Parkinson's disease and Movement Disorders Society. Methods Using a modified Delphi methodology, we sought consensus among key stakeholders (PwP, care partners, PD specialists, industry, regulatory representatives) through online questionnaires, focus groups, and a broad community survey. Results The consensus resulted in a multiplatform patient‐reported outcome tool to track PD progression. It includes an Item Bank of symptoms and activities featuring two interconnected user modes. The personal mode is a customizable self‐tracking tool that allows data sharing with professionals to improve standard care. The research mode employs a predefined responsive item to enhance research and clinical trials. Conclusion The MDS PD e‐Diary was designed to capture PD progression and its impact on PwP lives, potentially transforming research and clinical practice. Its further development and validation processes are underway.