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: GFO FDA class 2

Activated Partial Thromboplastin

Hematology

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Activated Partial Thromboplastin (product code GFO) is a hematology reagent used in the activated partial thromboplastin time (aPTT) test, a coagulation assay that evaluates the intrinsic and common coagulation pathways to detect clotting factor deficiencies and monitor anticoagulant therapy. This device is classified as FDA Class 2, indicating moderate risk, and requires 510(k) premarket notification. Regulated under 21 CFR 864.7925 in the Hematology specialty (HE), it is eligible for third-party review.

510(k) Clearances

50+ matches
K Number
Device Name
Cryocheck Hex LA
HemosIL Silica Clotting Time
STA-CEPHASCREEN KIT
HEMOSIL SYNTHASIL
HEMOSIL SILICA CLOTTING TIME
VITAL SCIENTIFIC APTT, APTT & QUIKCOAG APTT
CARESIDE APTT
HEMOCHRON JR. CITRATE APTT CUVETTE
SIGMA DIAGNOSTICS ALEXIN HS, MODELS A0969, A1094
SIGMA DIAGNOSTICS ALEXIN LS, MODELS A1219, A1334
HEMOCHRON CITRATE APTT
IL TEST APTT-SP
SPECKTIN-LA TEST SET
SYNTHAFAX APTT REAGENT
PATHROMTIN SL
SYNTHASIL APTT REAGENT
APTT-ES
APTT-ES REAGENT
PATHROMTIN
ACS APCT REAGENT, MODIFIED
HEMOCHRON CITRA ONESTEP APTT/FAC VI SINGSHOT APTT
HEMOCHRON DIRECT DRAW APTT/FAC VI VACU-APTT
STACLOT LA TEST KIT
PLATELIN L
ACS FREEZE-DRIED APTT REAGENT
ACS APCT REAGENT
ELLAGIC ACID APTT REAGENT
HEMOCHRON ONESTEP APTT TEST
HEMOCHRON(R) APTT, MODIFICATION
ANTICARDIOLIPIN ANTIBODY TEST SYSTEM
THE THERATEST ACA TEST
APTT REAGENT
ACS ACTIVATED PARTIAL THROMBOPLASTIN TIME TEST
APTT-EA REAGENT, AN ELLAGIC ACID ACTIVATED REAGENT
ACTIVATED PARTIAL THROMBOPLASTIN TIME (APTT)
APTT-P REAGENT, A PARTICLE ACTIVATED REAGENT
APTT BY HEMOCHRON(R)
COAG-1 APTT TEST CARD
EDL GLOBAL ACTIVATED PARTIAL THROMBOPLASTIN TIME
THROMBOSCREEN APTT REAGENT
EDL ACTIVATED PARTIAL THROMBOPLASTIN TIME REAGENT
BIOTRACK APTT REAGENT CARTRIDGE
APTT REAGENT
EASY-TEST PARTIAL THROMBOPLASTIN TIME PTT #16629
KD ACTIVATED PARTIAL THROMBOPLASTIN TIME REAGENT
UNIFAST ACTIVATED PARTIAL THROMBOPLASTIN TIME TEST
CLP ACTIVATED PARTIAL THROMBOPLASTIN TIME TEST
ALUMINA SILICA-ACTIVATED PARTIAL THROM
PLASMA COAGULATION CONT., ABNORMAL
HEPARIN CONTROL PLASMA

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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