K923504 is an FDA 510(k) clearance for the CHOLESTEROL ENZYMATIC ENDPOINT. Classified as Enzymatic Esterase--oxidase, Cholesterol (product code CHH), Class I - General Controls.
Submitted by Randox Laboratories, Ltd. (Antrim, N. Ireland, IR). The FDA issued a Cleared decision on January 10, 1994 after a review of 544 days - an unusually long review period, suggesting complex equivalence evaluation.
This device falls under the Chemistry FDA review panel, regulated under 21 CFR 862.1175 - the FDA in vitro diagnostics and chemistry framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.
Device pattern: High-complexity regulatory submission. Elevated predicate reliance profile. The extended review timeline suggests the FDA required additional documentation before confirming substantial equivalence - a pattern common in complex or first-of-kind Chemistry submissions.
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