510(k) Predicate Finder
Find potential predicate devices for your 510(k) submission. Enter a K-number to find all clearances with the same product code, a three-letter product code to browse clearances directly, or search by device name.
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Describe your device and the Research Assistant searches 510(k)s, compares intended use, and drafts a predicate shortlist — with citations.
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Radioimmunoassay, Digoxin (125-I), Rabbit Antibody, Solid Phase Sep.
Clinical Toxicology
The Radioimmunoassay for Digoxin using iodine-125 with rabbit antibody and solid phase separation is a laboratory test system that quantifies digoxin in patient serum using a solid-phase bound radioimmunoassay format, important for monitoring therapeutic levels of this narrow therapeutic index cardiac drug. It is a Class 2 device requiring 510(k) premarket notification. The product code is DON, regulated under 21 CFR 862.3320, within the Clinical Toxicology specialty. It is eligible for third-party 510(k) review.
510(k) Clearances
17 matchesWhat is a Predicate Device?
A predicate device is a legally marketed device that a new 510(k) applicant uses to demonstrate substantial equivalence. The FDA's 510(k) pathway requires manufacturers to show that their device has the same intended use and similar technological characteristics as one or more predicate devices already cleared for commercial distribution.
Finding the right predicate is a critical step in 510(k) strategy. Manufacturers typically search for cleared devices with the same FDA product code, which groups devices by their intended use and regulatory classification. This tool helps you identify potential predicates by browsing all clearances within a product code.
Note that predicate devices must be legally marketed — they cannot be devices that were cleared but never commercialized, or devices subject to a mandatory recall. The determination of substantial equivalence considers intended use, technological characteristics, and performance data.