K122556 is an FDA 510(k) clearance for the VISION BIOSYSTEMS ESTROGEN RECEPTOR CLONE 6F11 (ER 6F11). Classified as Immunohistochemistry Antibody Assay, Estrogen Receptor (product code MYA), Class II - Special Controls.
Submitted by Leica Biosystems Newcastle, Ltd. (Richmond, US). The FDA issued a Cleared decision on May 19, 2014 after a review of 635 days - an unusually long review period, suggesting complex equivalence evaluation.
This device falls under the Pathology FDA review panel, regulated under 21 CFR 864.1860 - the FDA pathology 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: 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 Pathology submissions.
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