June 2026 · 7 min read

How to Respond to an FDA Additional Information Request (AI) for a 510(k)

An AI request stops your review clock. Here's how to respond completely, avoid a second AI, and get back to clearance as fast as possible.

Read article →
June 2026 · 6 min read

FDA Rejected Your 510(k) Predicate: What to Do Next

A predicate dispute in an AI request or NSE determination isn't necessarily the end. Here's how to respond, when to pivot to a new predicate, and when to consider a different pathway.

Read article →
June 2026 · 7 min read

FDA Q-Submission (Pre-Sub) Guide: When and How to Use It

A Pre-Sub can save months of rework — or waste weeks on questions FDA won't answer. Here's how to use Q-Subs effectively for 510(k) submissions.

Read article →
June 2026 · 7 min read

510(k) Biocompatibility Requirements: ISO 10993 for Medical Devices

Biocompatibility is one of the most common AI request triggers in 510(k) review. Here's how ISO 10993 applies to your device and how to build a defensible biocompatibility section.

Read article →
June 2026 · 7 min read

FDA 510(k) Labeling Requirements: What Must Be in Your Submission

Labeling deficiencies are the number one cause of Refuse to Accept decisions. Here's exactly what FDA requires in your 510(k) labeling — and how to keep it consistent.

Read article →
May 21, 2026 · 6 min read

How to Evaluate a 510(k) Predicate Before Committing

A checklist for evaluating predicate candidates before you build a submission around them. Covers clearance fit, post-market history, enforcement record, and chain integrity.

Read article →
May 21, 2026 · 6 min read

FDA Warning Letters and 510(k) Predicate Research

A predicate applicant's FDA warning letter history can affect the strength of your 510(k) submission. Here's what warning letters reveal and how to factor them into predicate selection.

Read article →
May 21, 2026 · 6 min read

What FDA Enforcement History Tells You About a Predicate

FDA's view of a device type doesn't stop at clearance. Enforcement actions in the years after clearance reveal how regulators think about a device's risks in practice.

Read article →
May 10, 2026 · 6 min read

510(k) vs PMA: Which FDA Pathway Does Your Device Need?

Most medical device companies assume 510(k) is the default FDA pathway. It often is — but understanding when a PMA is required, and when De Novo makes more sense, can save you years.

Read article →
May 6, 2026 · 6 min read

FDA 510(k) Review Timeline: What to Expect and How to Prepare

FDA has a 90-day statutory review goal for 510(k)s. Most submissions take longer. Here's what actually drives the timeline — and what you control.

Read article →
April 28, 2026 · 7 min read

The De Novo Pathway: When to Use It and How It Works

De Novo isn't a fallback when you can't find a predicate — it's a strategic pathway for novel devices that creates regulatory precedent for an entire product category.

Read article →
April 18, 2026 · 7 min read

510(k) for Combination Products: Drug-Device, Biologic-Device, and More

Combination products occupy some of the most complex regulatory territory FDA administers. Understanding primary mode of action and lead center assignment is essential before you file.

Read article →
← All posts

Everything you need for a 510(k) submission. Nothing you don't.

14-day free trial. No setup. Cancel anytime.

Start free trial →
Building an AI or ML-enabled device? Predicate search, PCCP tracking, and AI-specific FDA intelligence — built exclusively for AI/ML devices. Try AIFDA Intel →