Cleared Traditional

K943979 - IL TEST THEOPHYLLINE

K943979 is an FDA 510(k) clearance for IL TEST THEOPHYLLINE, manufactured by Instrumentation Laboratory CO. The device is a Class 2 Toxicology device with product code KLS cleared through the Traditional 510(k) pathway after a 225-day FDA review.

K943979 · Instrumentation Laboratory CO · Toxicology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Jan 1995
Decision
225d
Days
Class 2
Risk

K943979 is an FDA 510(k) clearance for the IL TEST THEOPHYLLINE. Classified as Enzyme Immunoassay, Theophylline (product code KLS), Class II - Special Controls.

Submitted by Instrumentation Laboratory CO (Lexington, US). The FDA issued a Cleared decision on January 18, 1995 after a review of 225 days - an extended review cycle.

This device falls under the Toxicology FDA review panel, regulated under 21 CFR 862.3880 - 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: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Toxicology review framework, consistent with the majority of Class II 510(k) submissions.

View all Instrumentation Laboratory CO devices

FDA 510(k) Submission Details - K943979

510(k) Number K943979 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 07, 1994
Decision Date January 18, 1995
Days to Decision 225 days
Submission Type Traditional
Review Panel Toxicology (TX)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
138d slower than avg
Panel avg: 87d · This submission: 225d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

KLS Device Classification - Class 2, Special Controls

Product Code KLS Enzyme Immunoassay, Theophylline
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 862.3880
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 - KLS Enzyme Immunoassay, Theophylline

All 61
Devices cleared under the same product code (KLS) and FDA review panel - the closest regulatory comparables to K943979.
CEDIA THEOPHYLLINE ASSAY
K961462 · Boehringer Mannheim Corp. · Jun 1996
IMMULITE THEOPHYLLINE
K954569 · Diagnostic Products Corp. · Nov 1995
THEOPHYLLINE ENZYME IMMUNOASSAY
K952596 · Diagnostic Reagents, Inc. · Aug 1995
AXSYM THEOPHYLLINE
K935373 · Abbott Laboratories · Jun 1994
PARAMAX(R) THEOPHYLLINE REAGENT AND CALIBRATORS
K932685 · Baxter Diagnostics, Inc. · Sep 1993
VIDAS THEOPHYLLINE(THEO)
K933258 · Biomerieux Vitek, Inc. · Aug 1993