Cleared Traditional

K161721 - Diazyme Vitamin B12 Assay, Diazyme Vitamin B12 Calibrators Set, Diazyme Vitamin B12 Controls Set

K161721 is an FDA 510(k) clearance for Diazyme Vitamin B12 Assay, manufactured by Diazyme Laboratories. The device is a Class 2 Chemistry device with product code CDD cleared through the Traditional 510(k) pathway after a 90-day FDA review.

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Sep 2016
Decision
90d
Days
Class 2
Risk

K161721 is an FDA 510(k) clearance for the Diazyme Vitamin B12 Assay, Diazyme Vitamin B12 Calibrators Set, Diazyme Vitam.... Classified as Radioassay, Vitamin B12 (product code CDD), Class II - Special Controls.

Submitted by Diazyme Laboratories (Poway, US). The FDA issued a Cleared decision on September 20, 2016 after a review of 90 days - within the typical 510(k) review window.

This device falls under the Chemistry FDA review panel, regulated under 21 CFR 862.1810 - 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: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Chemistry review framework, consistent with the majority of Class II 510(k) submissions.

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FDA 510(k) Submission Details - K161721

510(k) Number K161721 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 22, 2016
Decision Date September 20, 2016
Days to Decision 90 days
Submission Type Traditional
Review Panel Chemistry (CH)
Summary Statement
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
2d slower than avg
Panel avg: 88d · This submission: 90d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

CDD Device Classification - Class 2, Special Controls

Product Code CDD Radioassay, Vitamin B12
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 862.1810
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 Chemistry devices follow this clearance model.

Regulatory Peers - CDD Radioassay, Vitamin B12

All 68
Devices cleared under the same product code (CDD) and FDA review panel - the closest regulatory comparables to K161721.
DxA 5000, DxI 800 Access Immunoassay System, Access Ferritin, Access Folate, Access TSH (3rd IS), Access Vitamin B12
K190298 · Beckman Coulter Biomedical GmbH · Oct 2019
LIAISON Vitamin B12
K192064 · DiaSorin, Inc. · Oct 2019
ADVIA Centaur Active-B12 (Holotranscobalamin) (AB12) Assay
K172133 · Axis-Shield Diagnostics, Ltd. · Oct 2017
ADVIA Centaur Active-B12 (Holotranscobalamin)(AB12) Assay, ADVIA Centaur Active-B12(AB12) Quality Control, and ADVIA Centaur Active-B12 (AB12) Master Curve Materials (MCM)
K160757 · Axis-Shield Diagnostics Limited · Jul 2016
Elecsys Vitamin B12 II assay, Elecsys Vitamin B12 II CalSet
K151786 · Roche Diagnostics · Sep 2015
Access Vitamin B12 Assay, Access Ferritin Assay, Access Folate Assay, Access HYPERsensitive hTSH Assay, Power Express Sample Processing System Generic Connection Module and Access Immunoassay System Reagents
K140496 · Beckman Coulter, Inc. · Sep 2014