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: LDJ FDA class 2

Enzyme Immunoassay, Cannabinoids

Clinical Toxicology

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Enzyme immunoassay for cannabinoids is a laboratory test system using antibody-based detection to identify and quantify cannabinoid compounds (primarily THC and its metabolites) in patient specimens, used for drug screening or monitoring in clinical toxicology settings. It is classified as FDA Class 2, requiring 510(k) premarket clearance. The product code is LDJ, regulated under 21 CFR 862.3870, in the Clinical Toxicology specialty. Third-party review eligibility applies.

510(k) Clearances

50+ matches
K Number
Device Name
Rapid Marijuana (THC) Test Strip 20, Rapid Marijuana (THC) Test Dipcard 20, Rapid Marijuana (THC) Test Strip 50, Rapid Marijuana (THC) Test Dipcard 50
LYHER® Urine Marijuana (THC) Test Kit (Strip), LYHER® Urine Marijuana (THC) Test Kit (Cassette)
Healgen® Accurate Oral Fluid Drug Test, Healgen® Accurate Oral Fluid Drug Test COT
BIOEASY Marijuana Test Dip Card 40, BIOEASY Marijuana Test Dip Card 20, BIOEASY Marijuana Test Strip 40, BIOEASY Marijuana Test Strip 20
CLUNGENE Methamphetamine Test, CLUNGENE Morphine Test, CLUNGENE Marijuana Test
EGENS Urine Test Cup THC-MDMA, EGENS Urine Test DipCard THC-MDMA, EGENS Urine Test Cassette Marijuana
Immunalysis Cannabinoids Urine Enzyme Immunoassay, Immunalysis cTHC Urine Calibrators, Immunalysis cTHC Urine Control Set
LZI Oral Fluid Cannabinoids Enzyme Immunoassay, LZI Oral Fluid Cannabinoids Calibrators and LZI Oral Fluid Cannabinoids Controls
FaStep Marijuana Tests (Strip, Panel Dip, Quick Cup, Turn-Key Split Cup), FaStep Methamphetamine Tests (Strip, Panel Dip, Quick Cup, Turn-Key Split Cup)
HEALGEN THC ONE STEP MARIJUANA TEST , HEALGEN MAMP ONE STEP METHAMPHETAMINE TEST
RAPIDFRET ORAL FLUID ASSAY FOR THC, THC CALIBRATOR SET, THC CONTROL SET, COLLECTOR
QUICKPROFILE SINGLE DRUG OF ABUSE DEVICE AND QUICK PROFILE MULTI-DRUGS OF ABUSE SCREEN DEVICE
TOXCUP DRUG SCREEN CUP
OMEGA LABORATORIES HAIR DRUG SCREENING ASSAY CARDOXY-THC (THCA)
WONDFO CANNABINOIDS URINE TEST WONDFO PROPOXYPHENE URINE TEST
PSYCHEMEDICS CANNABINOIDS EIA
WUNDER TEST
LZI CANNABINOIDS (CTHC) HOMOGENEOUS ENZYME IMMUNOASSAY, CALIBRATORS, CONTROL
CANNABINOIDS URINE TEST
THERMO SCIENTIFIC CEDIA CANNABINOIDS OFT ASSAY
CANNABINOID ASSAY AND THE RANDOX CANNABINOID CALIBRATOR/ CONTROL SET
BIONEXIA OPTICUP MULTI-STRIP DOA DIPSTICK TEST INTEGRATED CUP
BIONEXA SINGLE AND MULTI-STRIP CASSETTE/DIPSTICK DOA SCREEN PANELS ( AMP, BAR, BZO, COC, MET, MTD, MOR, PCP, TCA, THC,
AMEDICHECK DRUG SCREEN THC, COC, OPI, AMP, MET, PCP, MDMA,BAR, BZ
VITROS CHEMISTRY PRODUCTS THC REAGENT, CALIBRATOR KIT 30, FS CALIBRATOR 1, AND DAT PERFORMANCE VERIFIERS I, II, III, IV
AMEDICA DRUG SCREEN THC, COC,OPI,AMP,MET,PCP,MDMA,BAR,BZO,; MODEL C1010,C1015,C1020
ACRO BIOTECH LLC RAPID TETRAHYDROCANNABINOL URINE TEST; CATALOG# OPI001000
ON CALL HOME DRUG TEST FOR MARIJUANA AND ON CALL HOME DRUG TEST FOR MARIJUANA AND COCAINE
ON CALL MULTI-DRUG HOME TEST CUP
NANO-CHECK DAT 5 MULTI DRUG SCREENING TEST FOR CANNABINOIDS, OPIATES, COCAINE, METHAMPHETAMINE & PHENCYCLIDINE
ON CALL MULTI-DRUG HOME TEST
RANDOX CANNABINOIDS ASSSAY
ACCU-STAT HOME DRUG TEST CUP FOR MAIJUANNA (THC), COCAINE (COC), AMPHETAMINE (AMP), METHAMPHETAMINE (MAMP), ECSTASY
QUEST DIAGNOSTICS HAIRCHECK-DT (THC)
AMEDICA DRUG SCREEN THC/COC, OP1300, PPX, OXY, BAR/BZO TEST
ACCU-STAT HOME DRUG TEST FOR MARIJUANA, COCAINE, AMPHETAMINE, METHAMPHETAMINE, OPIATES, AND PHENCYCLIDINE
VISUALINE CUP IV FOR DRUGS OF ABUSE TEST FOR QUALITATIVE DETERMINATION OF COCAINE, CANNABINOIDS, MORPHINE, METHAMPHETAMI
ONLINE DAT II CANNABINOIDS II
AMEDICA DRUG SCREEN THC TEST
CANNABINOID ENZYME IMMUNOASSAY, CATALOG 0070, 0071
LIFESIGN THC, STATUS STIK THC, ACCUSIGN STIK THC, LIFESIGN MARIJUANA, ACCUSTIK THC
LIFESIGN DOA 4 (THC/OPI/COC/MET)
CANNABINOIDS
NO STEP ON SITE DEUG TEST CUP
AMEDITECH IMMUTEST DRUG SCREEN THC
MODIFICATION TO:FASTIX THC/COC DRUG SCREEN DIPSTICK TEST, FASTIX THC/COC/MET DRUG SCREEN DIPSTICK TEST, FASTIX OPI/MET
ADVANTAGE MARIJUANA (THC) HOME DRUG TEST
EMIT II PLUS CANNABINOID ASSAY, MODEL OSR9N229
ACON THC ONE STEP MARIJUANA TEST STRIP(URINE);ACON THC ONE STEP MARIJUANA TEST DEVICE (URINE)
PROFILE II ER

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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