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Discover the latest FDA Q-Submission Guidance to improve medical device submissions, gain early feedback, and streamline your FDA regulatory strategy.

Updated Guidance on the FDA Q-Submission (Q-Sub) Program  


4 mins


The FDA’s updated Q-Submission (Q-Sub) guidance, issued on May 29, 2025, provides medical device and IVD manufacturers with a structured framework to engage proactively with the FDA before or during the regulatory submission process. This voluntary program is designed to improve communication, streamline regulatory pathways, and enhance the quality of submissions. With this publication, the “Requests for Feedback and Meetings for Medical Device Submissions: The Q-Submission Program,” issued on June 2, 2023, and “Guidance on PMA Interactive Procedures for Day-100 Meetings and Subsequent Deficiencies – for Use by CDRH and Industry,” issued on February 19, 1998, are revoked. 

Key Takeaways From the Updated FDA Q-Submission Guidance

  • Early feedback: Manufacturers can gain regulatory clarity early in product development. 
  • Shortened review timelines: High-quality, well-prepared submissions are more likely to progress smoothly. 
  • Risk reduction: Helps identify and resolve potential regulatory challenges before formal submissions. 
  • Supports innovation: Encourages strategic planning for novel and breakthrough technologies. 

Applicable Situations

  • The guidance applies to both potential and submitted applications 
  • The guidance is relevant to a wide range of submission types, including: 
  • Investigational Device Exemptions (IDEs) 
  • Premarket Approvals (PMAs) 
  • Humanitarian Device Exemptions (HDEs) 
  • De Novo Classification Requests 
  • 510(k) Premarket Notifications 
  • CLIA Waiver Applications (CWs) 
  • Dual 510(k)/CLIA Waiver Submissions (Duals) 
  • Accessory Classification Requests 
  • Certain INDs and BLAs regulated by CBER under section 351 of the Public Health Service (PHS) Act 
  • Responses from FDA may be provided in writing or the manufacturer can request a “meeting” with FDA, which may be conducted in-person (face-to-face) or virtually (by videoconference or teleconference). 

Key Q-Submission Types Explained 

Type Purpose 
Pre-Submission (Pre-Sub) Request FDA feedback (written and/or meeting) on specific review topics before a submission. 
Submission Issue Request (SIR) Clarify FDA comments or propose strategies after a deficiency or hold letter. 
Study Risk Determination Seek FDA’s opinion on whether a clinical study is significant risk (SR), thus requiring the manufacturer or study sponsor to receive approval from FDA to initiate the study, non-significant risk (NSR), which indicates that approval from FDA is not required and the manufacturer or study sponsor must follow the “abbreviated” IDE requirements, or IDE-exempt, which permits  the manufacturer or study sponsor to move forward with the study with limit controls. 
Informational Meetings Share information with FDA without requesting feedback (e.g., for complex device overviews). 
PMA Day 100 Meeting Request formal meeting within 100 days of a PMA filing to discuss status, deficiencies, and next steps. 

Timelines for Feedback 

Q-Sub Type Expected FDA Response Time 
Pre-Sub (written only) 70 days 
Pre-Sub (with meeting) Written Feedback:  70 days or 5 days prior to scheduled meeting, whichever is sooner  Meeting:  Date based on mutual agreement (typically day 70-75)  
SIR (≤60 days of FDA letter) 21 days (as resources allow) 
SIR (>60 days of FDA letter) 70 days (as resources allow) 
Study Risk Determination 90 days 
Informational Meeting 90 days 
PMA Day 100 Meeting 100 days from the PMA filing date  

Summary of the Updated FDA Q-Submission Guidance

The updated Q-Submission guidance is considered a highly valuable tool for manufacturers seeking to navigate the regulatory landscape efficiently and effectively. By leveraging this guidance, manufacturers can ensure that their submissions are of the highest quality, thereby increasing the likelihood of a clear feedback from the FDA concerning questions raised.  

For detailed guidance and templates, refer to the full FDA document: FDA Q-Submission Guidance (May 2025). Note that to support FDA’s broader strategy to implement guided submission tools and templates for medical device submissions Pre-Subs can be submitted in an eSTAR format, where additional Q-Sub types may be included in the future. Note that the use of eSTAR format is currently on a voluntary basis. Upon finalization of the Draft Guidance on Electronic Submission Template for medical Device Q-Submissions the FDA plans to allow a minimum 1-year transition period post-finalization before mandatory use. 

Expert Support for Your FDA Q-Submission Strategy

If you have any questions regarding this summary or the accompanying guidance document, we encourage you to reach out to our regulatory experts, here. We are here to assist you with your Q-Sub strategy and submission preparation, and we can help you identify the most effective regulatory strategy for your products.