Skip to main content

MDR NB Common Submission Issues and How to Prevent Them

By July 21, 2021April 6th, 2023No Comments
mdr submission

Fang’s internal processes and checklists have evolved over the last 3 years since we started working heavily on MDR transitions for our clients. The process improvements have been driven by the continuous feedback we get from Notified Bodies (NB) during the submission review process. We have worked with 6 NBs so this is a more industry-wide perspective than specific to one NB. Here are the top issues we see with MDR submissions. Our experience is that resolving these upfront can expedite your submissions by 3 months or more.


Common Issues:

  • NB cannot find information in the submission (broken links, no bookmarks, tables/figures misnumbered, referenced annex documents not attached…).
  • Referenced documents not released in QMS
  • Version number/release dates missing from documents


  • Each NB has their own requirements for formatting and document submission process. Get the latest information/templates prior to writing your submission so you are not forced into rework delaying your submission.
  • Ensure all submissions have proper pagination with hyperlinks, bookmarks, and easy ways to find all documents referenced in the technical file.
  • Verify PDF documents are unlocked
  • Documents should be searchable.Use optical character recognition (OCR) on scanned documents.
  • Conduct an independent quality review of the entire submission package.
  • Make it as easy as possible to understand the submission package.


Common Issues:

  • Not all components and accessories are present in the evaluation
  • No clinical investigation and/or insufficient equivalency data
  • Missing justification for why one group of data is worst case and/or representative for another.
  • CVs missing for relevant personal, failing to establish their competence as required
  • Clinical Evaluation Plan not included in submission
  • Claims not identified for clinical benefits of the product
  • Missing justification for lack of pre-market investigation


  • Be consistent throughout all documents. i.e., the CER must match the IFU (indications, warnings…), Risk documents, PMCF, etc.
  • The analysis must demonstrate that appropriate controls have been applied to all risks
  • Provide copies of the appropriate risk management documents including a copy of risk management procedure, plan, risk assessments and report


Common Issues:

  • Hazards do not match device application
  • Risk Management Plan or Risk Analysis (FMEAS) missing
  • CER adverse events do not match Risk Analysis
  • IFU Warnings/Precautions inconsistent with Risk documents
  • Device benefits not clear or inconsistent with CER


  • Include Risk Management Procedure with all scoring and definitions as well as the Risk Management Plan for the device.
  • Provide assessments for design, production/process, clinical/application/product risks and a Risk Management Report for the device.
  • Design Risk Assessment should include assessment of any design changes made and if they increase or decrease likelihood of existing hazards.


Common Issues:

  • Rationale for worst-case device or configuration not provided
  • Cleaning validation missing
  • Cleaning instructions inconsistent with the validation testing


Documents should describe:

  • use of “State of the Art”
  • process validation methods
  • bioburden controls and monitoring
  • the product qualification
  • the process qualification

For End-User Sterilization include:

  • IFU that details the validated cleaning and sterilization parameters
  • Validation protocol report for cleaning and sterilization parameters listed in the IFU


Common Issues:

  • Outdated or withdrawn standards referenced
  • Not all components evaluated
  • CV’s not attached for the expert assessors
  • Primary packaging of device not evaluated for biocompatibility
  • User not considered in biocompatibility evaluation


  • Directly address CMR/ED chemicals and the processes used to assess with clear conclusions tied to the regulations
  • Ensure biological safety assessments are per the most current ISO 10993
  • Include evidence of compliance for the finished device considering all materials and manufacturing steps, sterilization processes, intended use etc.


Common Issues:

  • PMCF plan or report missing
  • PMCF Plan not detailed or specific to the device
  • Missing proactive activities as required in MDR Article 61 and Annex XIV (B)


  • Evaluate global complaints; don’t just list them
  • Compare PMS data to expected occurrence rates. Tie to Risk documents
  • Provide full details of any vigilance issues including status, reference numbers for any FSCA or FSN
  • Include PMS procedure (not just the plan) with the submission
  • If the PMCF plan includes a PMCF study, include the study protocol.
  • PSUR should contain all the elements outlined in MDR Article 86 and any applicable MDCG guidance documents.

Many guidance documents exist on these topics and MDR submissions The MDCG documents are particularly important references to use when writing your Technical File and supporting evidence documents.

The submission review/ QC check is NOT a waste of time. If you are performing this step, you are potentially wasting months of time.

Have open dialog with your NB scheme manager to ensure your approach matches their requirements.

Aspects Fang can assist with:

  • Full or partial drafting of submissions/technical evidence documents
  • Independent QC check of submissions/technical evidence documents
  • Regulatory Strategy
  • Gap Assessments including evidence reviews
  • Answering NB non-conformance questions

Need a project completed? We have an expert for that.

Contact Us