The European Commission (EC) released 54 Questions & Answers on In Vitro Diagnostic Medical Devices Regulation (EU) 2017/746 (IVDR) Performance Studies, MDCG 2025-5. This follows the analogous guidance for the Medical Devices Regulation (EU) 2017/745 MDR) clinical investigations from 2021 (MDCG 2021-6, revised 2023). This has been a long-awaited guidance document. In the interim, many competent..