Cleared Traditional

K173691 - Sofia Lyme FIA, Sofia 2 analyzer, Sofia 2 Installation Pack (FDA 510(k) Clearance)

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

K173691 · Quidel Corporation · Microbiology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Feb 2018
Decision
89d
Days
Class 2
Risk

K173691 is an FDA 510(k) clearance for the Sofia Lyme FIA, Sofia 2 analyzer, Sofia 2 Installation Pack. Classified as Reagent, Borrelia Serological Reagent (product code LSR), Class II - Special Controls.

Submitted by Quidel Corporation (San Diego,, US). The FDA issued a Cleared decision on February 28, 2018 after a review of 89 days - a notably fast clearance 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: 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 Quidel Corporation devices

Submission Details

510(k) Number K173691 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 01, 2017
Decision Date February 28, 2018
Days to Decision 89 days
Submission Type Traditional
Review Panel Microbiology (MI)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
13d faster than avg
Panel avg: 102d · This submission: 89d
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
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