Regulatory Q&A Forum
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When should I use a Special 510k instead of a Traditional 510k?
When modifying a legally marketed Class II device, how can a sponsor rigorously determine if the change qualifies for a Special 510(k) submission versus requiring a Traditional 510(k)? The Special 51...
What is the total cost of a 510k submission beyond FDA user fees?
When a medical device sponsor prepares a budget for a 510(k) submission, how can they develop a comprehensive financial forecast that extends beyond the official FDA user fee to accurately capture the...
How do I justify using multiple predicate devices for my 510k submission?
When developing a 510(k) submission for a device that combines features from multiple legally marketed devices—often called a "split predicate" or "multiple predicate" approach—what is a robust strate...
When is a Special 510k appropriate versus a Traditional 510k submission?
When a manufacturer modifies a legally marketed device, such as updating the user interface of a Class II SaMD or changing a non-patient contacting component in a surgical instrument, a critical regul...
When does a medical device modification require a new 510k submission?
When a manufacturer modifies a 510(k)-cleared device, such as an infusion pump, a critical regulatory decision must be made: is a new 510(k) submission required, or can the change be documented intern...
What is the total timeline for a 510k from preparation to clearance?
When project managers and regulatory teams are tasked with creating a go-to-market timeline for a new Class II medical device, such as a wireless patient monitor, how can they develop a realistic, end...
The "Silent Killers" of FDA 510(k) Submissions in 2025: Why eSTAR and Cybersecurity Are Failing New Devices
What are the main challenges with eSTAR compliance and cybersecurity documentation in FDA 510(k) submissions in 2025? Why are these areas causing submission failures, and how can regulatory consultant...
How long does the FDA have to complete a 510k substantive review?
While the FDA’s overall performance goal for a 510(k) review is widely known to be 90 calendar days, this target represents the FDA’s review time and does not include periods when the submission is on...
What testing is required for 510k if my predicate is old?
When preparing a 510(k) submission using a legacy predicate cleared decades ago, how can sponsors develop a robust testing strategy to bridge the gap between the predicate's minimal clearance data and...
How to prove substantial equivalence with multiple predicate devices?
When a new medical device combines key technological characteristics from two or more distinct predicate devices—such as an orthopedic implant using a porous coating from one predicate and an expandab...
How do I justify substantial equivalence with a split predicate device?
When developing a new medical device by combining key features from two or more legally marketed devices—a 'split predicate' approach—what is a comprehensive framework for demonstrating substantial eq...
What is the total estimated cost for a 510k including FDA and consultant fees?
Beyond the standard MDUFA user fee, what is a comprehensive framework for a medical device sponsor, particularly a startup, to realistically estimate the total cost of a 510(k) submission for a Class ...
How does an RTA hold affect the FDA 510k review timeline?
When a medical device sponsor submits a 510(k) for a product, such as a new diagnostic imaging software, receiving a Refuse-to-Accept (RTA) hold can cause significant project delays. Unlike an Additio...
When does a software change to a cleared device require a new 510k?
For a manufacturer with a 510(k)-cleared medical device, such as a diagnostic imaging workstation, what is a comprehensive and defensible methodology for determining if a planned software update requi...
What are the FDA user fees for a 510k submission in 2024?
For regulatory affairs professionals budgeting for a 510(k) submission, what are the key strategic and operational considerations for navigating the MDUFA user fee requirements for the current fiscal ...
How to determine if a device change requires a new 510k submission?
For a manufacturer with a 510(k)-cleared device, such as an electrosurgical unit, what is a robust and defensible framework for determining if a proposed modification requires a new 510(k) submission ...
What is the average FDA 510k review time after an AI request?
After a sponsor submits a comprehensive response to an FDA Additional Information (AI) request for a 510(k), the review clock officially restarts, but forecasting the time until a final clearance deci...
How to write a substantial equivalence argument for a 510k submission?
When preparing a 510(k) for a device that introduces a novel feature to an established design, such as a Class II orthopedic bone screw with a new surface coating intended to improve osseointegration,...
How much does a 510k submission cost including consultant and testing fees?
When planning for a 510(k) submission, how can a medical device sponsor develop a comprehensive budget that goes beyond the predictable FDA user fee to accurately forecast the major, variable costs as...
What are the 2024 FDA user fee costs for a small business 510k submission?
For a small medical device company preparing its first 510(k), successfully qualifying for the reduced small business user fee is a critical financial step. Beyond simply meeting the gross receipts or...