Cleared Traditional

K202573 - LIAISON Lyme IgM, LIAISON Lyme IgM Control Set, LIAISON Lyme Total Antibody Plus (FDA 510(k) Clearance)

Class II Microbiology device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K202573 · DiaSorin, Inc. · Microbiology device
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Feb 2021
Decision
167d
Days
Class 2
Risk

K202573 is an FDA 510(k) clearance for the LIAISON Lyme IgM, LIAISON Lyme IgM Control Set, LIAISON Lyme Total Antibody Plus. Classified as Reagent, Borrelia Serological Reagent (product code LSR), Class II - Special Controls.

Submitted by DiaSorin, Inc. (Stillwater, US). The FDA issued a Cleared decision on February 18, 2021 after a review of 167 days - an extended review cycle.

This device falls under the Microbiology FDA review panel, regulated under 21 CFR 866.3830 - the FDA microbiology 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 Microbiology review framework, consistent with the majority of Class II 510(k) submissions.

View all DiaSorin, Inc. devices

Submission Details

510(k) Number K202573 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received September 04, 2020
Decision Date February 18, 2021
Days to Decision 167 days
Submission Type Traditional
Review Panel Microbiology (MI)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
65d slower than avg
Panel avg: 102d · This submission: 167d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code LSR Reagent, Borrelia Serological Reagent
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 866.3830
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 Microbiology devices follow this clearance model.

Regulatory Peers - LSR Reagent, Borrelia Serological Reagent

All 110
Devices cleared under the same product code (LSR) and FDA review panel - the closest regulatory comparables to K202573.
Lyme-ID IgG Test
K252627 · Inanovate, Inc. · Nov 2025
iDart Lyme IgM ImmunoBlot Kit
K242872 · Id-Fish Technology, Inc. · Jun 2025
iDart Lyme IgG ImmunoBlot Kit
K233367 · Id-Fish Technology, Inc. · Aug 2024
LIAISON Lyme IgG, LIAISON Lyme IgG Control Set, LIAISON Lyme Total Antibody Plus
K202574 · DiaSorin, Inc. · Feb 2021