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5 Common Pitfalls in MDR Technical Files — and How to Avoid Them
By Adel Greb
Navigating the Medical Device Regulation (MDR) can feel overwhelming — especially when it comes to compiling a compliant technical file. After reviewing and submitting dozens of files, I’ve seen the same mistakes pop up time and again.
Avoid these 5 common pitfalls to strengthen your submission and reduce costly delays:
1. Incomplete Risk Management Documentation
Many companies underestimate how deeply MDR ties the technical file to ISO 14971. A standalone risk matrix isn’t enough — you need traceability from risk analysis to design controls, verification, and post-market surveillance.
💡Helpful Tip: Align your risk documentation directly with your design and usability work. Consider linking risks to mitigations across the lifecycle.
2. Weak Clinical Evaluation Reports (CER)
Regulators are increasingly focused on clinical evidence. Reused or outdated CERs from the MDD era often fall short of MDR expectations.
💡Helpful Tip: Make sure your clinical data is current, device-specific, and aligned with MEDDEV 2.7/1 Rev 4 and MDCG guidance.
3. Unclear Software Documentation
If your product includes software, lack of structure in IEC 62304 and IEC 82304 documentation is a red flag. This includes missing software architecture, SOUP justifications, or version control plans.
💡Helpful Tip:: Organize your software file in line with IEC 62304 clauses, and don’t forget the software risk classification justification.
4. Gaps in Post-Market Surveillance Plans
Some companies treat PMS as an afterthought. However, MDR expects a proactive, data-driven approach integrated into your QMS.
💡Helpful Tip: Use real-world use cases and complaint trends to show how PMS feeds into continuous improvement and risk reevaluation.
5. Lack of Documented PRRC Responsibility
The Person Responsible for Regulatory Compliance (PRRC) must be clearly assigned and documented. Not having this role filled, or failing to prove their qualifications, can stop the submission cold.
💡Helpful Tip: Maintain a signed role description and CV for the PRRC as part of your QMS.
Final Thoughts
A strong technical file isn’t about ticking boxes — it’s about telling a coherent, compliant story about your device’s safety, quality, and performance.
Don’t let these common mistakes delay your MDR submission. The cost of a rejected Technical File is measured in months, not days. Download our FREE MDR Technical File Pre-Submission Audit Checklist. This comprehensive tool breaks down the necessary evidence for Risk, CER, Software, and PMS to ensure your documentation is robust, traceable, and ready for Notified Body review on the first submission. Download the Audit Checklist Now to submit with confidence.”
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