Cleared Traditional

K023317 - METHADONE ENZYME IMMUNOASSAY (FDA 510(k) Clearance)

Class II Toxicology device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K023317 · Lin-Zhi International, Inc. · Toxicology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Dec 2002
Decision
70d
Days
Class 2
Risk

K023317 is an FDA 510(k) clearance for the METHADONE ENZYME IMMUNOASSAY. Classified as Enzyme Immunoassay, Methadone (product code DJR), Class II - Special Controls.

Submitted by Lin-Zhi International, Inc. (San Jose, US). The FDA issued a Cleared decision on December 12, 2002 after a review of 70 days - a notably fast clearance cycle.

This device falls under the Toxicology FDA review panel, regulated under 21 CFR 862.3620 - the FDA toxicology device framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Lin-Zhi International, Inc. devices

Submission Details

510(k) Number K023317 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received October 03, 2002
Decision Date December 12, 2002
Days to Decision 70 days
Submission Type Traditional
Review Panel Toxicology (TX)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
17d faster than avg
Panel avg: 87d · This submission: 70d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code DJR Enzyme Immunoassay, Methadone
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 862.3620
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Toxicology devices follow this clearance model.

Regulatory Peers - DJR Enzyme Immunoassay, Methadone

All 62
Devices cleared under the same product code (DJR) and FDA review panel - the closest regulatory comparables to K023317.
LZI Methadone II Enzyme Immunoassay
K192433 · Lin-Zhi International, Inc. · Oct 2019
LZI Methadone Metabolite Enzyme Immunoassay, LZI Methadone Metabolite (100 and 300) Calibrators
K170416 · Lin-Zhi International, Inc. · Jun 2017
Immunalysis EDDP Specific Urine Enzyme Immunoassay, Immunalysis EDDP Urine Calibrators, Immunalysis EDDP Urine Control Sets
K151395 · Immunalysis Corporation · Jul 2015