Tool · 510(k)

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.

Product Code: KXT FDA class 2

Enzyme Immunoassay, Digoxin

Clinical Toxicology

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The Digoxin Enzyme Immunoassay is an in vitro diagnostic device used to measure digoxin concentrations in patient serum or plasma, supporting therapeutic drug monitoring for patients prescribed this cardiac glycoside to treat heart failure and arrhythmias. It is classified as FDA Class 2, indicating moderate risk, and requires a 510(k) premarket notification before marketing. The product code is KXT, regulated under 21 CFR 862.3320, in the Clinical Toxicology medical specialty. This device is eligible for third-party review under the FDA's accredited persons program.

510(k) Clearances

50+ matches
K Number
Device Name
ADVIA Centaur® Digoxin assay
Elecsys Digoxin Immunoassay, Elecsys PreciControl Cardiac II
RANDOX DIGOXIN ASSAY
DIMENSION VISTA LOCI DIGOXIN FLEX REAGENT CARTRIDGE (DIGXN), MODEL K6435
ARCHITECT IDIGOXIN AND ARCHITECT IDIGOXIN CALIBRATORS, MODELS 1P32-25 AND IP32-01
AXSYM DIGOXIN III
BAYER ADVIA DIGOXIN ASSAY FOR THE INTEGRATED MODULE SYSTEM
QMS DIGOXIN REAGENT SYSTEM ON THE ABBOTT AEROSET SYSTEM
IMMULITE 2000 DIGOXIN, MODELS L2KDI2 (200 TESTS) AND L2KDI6 (600 TESTS)
RANDOX DIGOXIN
EMIT 2000 DIGOXIN ASSAY, MODEL OSR4H229
DIGOXIN IMMUNOASSAY
IMMAGE IMMUNOCHEMISTRY SYSTEM DIGOXIN (DIG) REAGENT
SYNCHRON SYSTEMS DIGOXIN (DIGN) REAGENT, SYNCHRON SYSTEMS DRUG CALIBRATOR
DIGOXIN ASSAY FOR THE TECHNICON RA / OPERA SYSTEMS
ELECSYS DIGOXIN
DIGOXIN DG-II FPIA REAGENT SET
CEDIA DIGOXIN II
CEDIA DIGOXIN
IMMAGE SYSTEM DIGOXIN (DIG) REAGENT/BECKMAN DRUG CALIBRATOR 2
DIGOXIN ENZYME IMMUNOASSAY
AXSYM DIGOXIN II
IMX DIGOXIN
IL TEST DIGOXIN, PN 181761-00
EMIT 2000 DIGOXIN ASSAY
DUPONT ACA DIGOXIN (DGN A) METHOD
IL TEST DIGOXIN & IL TEST DIGOXIN CALIBRATORS
DIGOXIN FLEX(TM) REAGENT CARTRIDGE
AXSYM DIGOXIN
EMIT 2000 DIGOXIN ASSAY
DIGOXIN FPIA REAGENT SET AND CALIBRATOR SET
CEDIA DIGOXIN PLUS ASSAY
ACE CLINICAL CHEMISTRY SYSTEM
EMIT 2000 DIGOXIN ASSAY/CALIBRATORS MODIFICATION
CEDIA DIGOXIN PLUS ASSAY
ACA(R) DIGOXIN ANALYTICAL TEST PACK (DGN)
VIDAS DIGOXIN (DIG)
DIGOXIN TEST SYSTEM, KXT TX
ACS DIGOXIN IMMUNOASSAY
ACA DIGOXIN ANALYTICAL TEST PACK
FAST DIGOXIN TEST SYSTEM
ACCESS DIGOXIN ASSAY
DELFIA DIGOXIN KIT
CEDIA DIGOXIN PLUS ASSAY
CEDIA DIGOXIN ASSAY (MODIFICATION)
SRI DIGOXIN ENZYME IMMUNOASSAY
IL TEST(TM DIGOXIN
CEDIA(R) DIGOXIN R' ASSAY
CEDIA(R) DIGOXIN SC ASSAY
OPUS(TM) DIGOXIN TEST SYSTEM

What 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.

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