Notes from the FDA frontier.
153 posts and counting — every CDRH guidance, warning letter, and explainer worth your time.
FDA Additional Information Requests: How to Respond to 510(k) Deficiency Letters (Complete Guide)
Learn how to effectively respond to FDA Additional Information requests for 510(k) deficiency letters. Master strategies to address FDA Additional Information requests and meet the 180-day deadline.
What Happens If FDA Disagrees With Your Predicate Device? Complete Response Guide
Discover what happens if FDA disagrees with your predicate device and explore response strategies. Learn how to navigate predicate device challenges effectively.
10 Reasons FDA Submissions Fail — Even When You Think You're Ready
Why 60% of 510(k)s get RTA'd. The top 10 preventable reasons FDA submissions fail, backed by data and regulatory expert analysis for 2025.
How to Prepare Your First FDA Submission: Step-by-Step Guide
Complete guide to preparing your first FDA submission as a startup founder. Learn classification, pathway selection, documentation, and timelines for 2025.
How to Find a Predicate Device: Complete FDA Medical Device Guide
Find the right predicate device for your 510(k) submission. Step-by-step guide to FDA database search, evaluation criteria, and avoiding costly mistakes.
FDA Medical Device Databases: Complete Search Guide
Unlock the power of FDA database insights with our complete guide. Learn strategic FDA database search techniques to boost your regulatory strategy.
What Is an RTA Hold? FDA 510(k) Acceptance Review Complete Guide
Learn what causes FDA RTA (Refuse to Accept) holds affecting 60% of 510(k) submissions. Complete prevention guide with checklists, common triggers & recovery strategies.
What Is an RTA Hold? FDA 510(k) Acceptance Review Complete Guide
Learn what causes FDA RTA (Refuse to Accept) holds affecting 60% of 510(k) submissions. Complete prevention guide with checklists, common triggers & recovery strategies.
What Is Substantial Equivalence (SE) in FDA 510(k)? Definition & Criteria
Master FDA's substantial equivalence requirements for 510(k) success. Complete guide to predicate selection, technological comparison, performance data strategy & NSE recovery.
What Is FDA's eSTAR? Electronic Submission Template Guide
Complete guide to FDA's mandatory eSTAR electronic submission template. Learn requirements, technical specs, compliance deadlines & preparation procedures for 510(k), De Novo & Q-Subs.
What Is FDA's eSTAR? Electronic Submission Template Guide
Complete guide to FDA's mandatory eSTAR electronic submission template. Learn requirements, technical specs, compliance deadlines & preparation procedures for 510(k), De Novo & Q-Subs.
What Is an FDA Pre-Submission (Q-Sub)? Complete Guide
Learn when FDA Q-Submissions provide ROI for medical device approvals. Complete guide to Pre-Subs, timing strategy, eSTAR requirements & maximizing FDA feedback value.
What Is an FDA Pre-Submission (Q-Sub)? Complete Guide
Learn when FDA Q-Submissions provide ROI for medical device approvals. Complete guide to Pre-Subs, timing strategy, eSTAR requirements & maximizing FDA feedback value.
FDA SaMD Pre-Submission (Q-Sub): When to Request & What to Include
Learn when to schedule an FDA Pre-Submission meeting for your SaMD project, key benefits, required documents.
FDA eSTAR for SaMD: What Changes After Oct 1 2025?
From Oct 1 2025, FDA will require all De Novo SaMD submissions via its eSTAR template. Learn what’s new, key sections, and get ready.
FDA Q-Submission (Q-Sub) Program: How Early Feedback Streamlines Approval
Learn how the FDA’s Q-Submission Program provides early feedback to improve your medical device approval process. Discover Q-Sub types, benefits, and tips for successful submissions.
How to Choose the Right Predicate Device for Your 510(k) Submission
Learn how to choose the right predicate device for your 510(k) submission with this step-by-step guide. Avoid common mistakes and strengthen your FDA submission.
Top 10 FDA Medical Device Regulatory Mistakes and How to Avoid Them
Learn the top 10 common mistakes in FDA medical device regulations and how to avoid them. Get actionable tips to ensure your compliance efforts stay on track.
510(k) Submission Checklist for Medical Devices: What to Include
Looking to submit a 510(k) to the FDA? Our checklist covers everything from device classification to testing, ensuring a smooth submission process.