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.
Let the assistant find your predicates
Describe your device and the Research Assistant searches 510(k)s, compares intended use, and drafts a predicate shortlist — with citations.
Free to try · every answer cites its records
Chromatographic Separation, Lactate Dehydrogenase Isoenzymes
Clinical Chemistry
The Chromatographic Separation Lactate Dehydrogenase Isoenzymes Test is a clinical chemistry device that uses chromatographic separation techniques to distinguish and quantify individual LDH isoenzyme fractions from biological samples, providing more specific information than total LDH measurements for diagnosing the source and nature of tissue injury. It is classified as FDA Class 2 (moderate risk), though it is exempt from 510(k) premarket notification. The product code is CEX, regulated under 21 CFR 862.1445, within the Clinical Chemistry medical specialty. No special flags apply to this device.
510(k) Clearances
8 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.