With the change from MDD to MDR Adverse Event (AE) reporting in Medical Device Clinical Trials is supposed to be more clear and uniform, but is it? Conclusion is that at this moment it is not due to several reasons, the main ones being that the clinical module in EUDAMED is not ready yet leading to different reporting requirements for the different EU countries, and that the MDR focusses on reporting to the Competent Authorities and central or local Ethics Committees may have different reporting requirements. So regardless MDR directions, it is key to check AE reporting needs with every regulatory body involved at the start of your Medical Device Clinical Trial to make sure you are compliant with the applicable requirements.