Cleared Traditional

K844991 - EMIT PHENYTOIN ASSAY

K844991 is the FDA 510(k) clearance for EMIT PHENYTOIN ASSAY by Syva Co.. It is a Class 2 Toxicology device (product code DIP) cleared through the Traditional 510(k) pathway after a 28-day FDA review.

K844991 · Syva Co. · Toxicology device
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Jan 1985
Decision
28d
Days
Class 2
Risk

K844991 is an FDA 510(k) clearance for the EMIT PHENYTOIN ASSAY. Classified as Enzyme Immunoassay, Diphenylhydantoin (product code DIP), Class II - Special Controls.

Submitted by Syva Co. (Palo Alto, US). The FDA issued a Cleared decision on January 23, 1985 after a review of 28 days - a notably fast clearance cycle.

This device falls under the Toxicology FDA review panel, regulated under 21 CFR 862.3350 - 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 Syva Co. devices

Submission Details

510(k) Number K844991 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 26, 1984
Decision Date January 23, 1985
Days to Decision 28 days
Submission Type Traditional
Review Panel Toxicology (TX)
Summary -
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
59d faster than avg
Panel avg: 87d · This submission: 28d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code DIP Enzyme Immunoassay, Diphenylhydantoin
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 862.3350
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 - DIP Enzyme Immunoassay, Diphenylhydantoin

All 36
Devices cleared under the same product code (DIP) and FDA review panel - the closest regulatory comparables to K844991.
DETERMINATION OF PHENYTOIN (DIPHENYLHYDANTOIN)
K860048 · Clinical Data, Inc. · Jan 1986
EMIT QST PHENYTOIN ASSAY -MONOCLONAL ANTIBODY
K850712 · Syva Co. · Mar 1985
SERALYZER ARIS PHENYTOIN REAGENT STRIPS
K842092 · Miles Laboratories, Inc. · Mar 1985
PHENYTOIN ACA ANALYTICAL TEST PACK
K843209 · E.I. Dupont DE Nemours & Co., Inc. · Oct 1984
VENTREZYME PHENYTOIN KIT IMMUNOASSAY
K842161 · Ventrex Laboratories, Inc. · Jul 1984
EMIT QST PHENYTOIN ASSAY
K834406 · Syva Co. · Feb 1984