Cleared Traditional

K251580 - MTS Sulbactam-Durlobactam 0.004/4 - 64/4 µg/mL (SUD) (FDA 510(k) Clearance)

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

K251580 · Liofilchem S. R. L. · Microbiology device
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Aug 2025
Decision
89d
Days
Class 2
Risk

K251580 is an FDA 510(k) clearance for the MTS Sulbactam-Durlobactam 0.004/4 - 64/4 µg/mL (SUD). Classified as Manual Antimicrobial Susceptibility Test Systems (product code JWY), Class II - Special Controls.

Submitted by Liofilchem S. R. L. (Roseto Degli Abruzzi, IT). The FDA issued a Cleared decision on August 20, 2025 after a review of 89 days - a notably fast clearance cycle.

This device falls under the Microbiology FDA review panel, regulated under 21 CFR 866.1640 - 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 Liofilchem S. R. L. devices

Submission Details

510(k) Number K251580 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received May 23, 2025
Decision Date August 20, 2025
Days to Decision 89 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
13d faster than avg
Panel avg: 102d · This submission: 89d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code JWY Manual Antimicrobial Susceptibility Test Systems
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 866.1640
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 Consultant

Laboratory Specialists, Inc.
Laura Koeth

The regulatory consultant manages the 510(k) submission process on behalf of the applicant - coordinating technical documentation, predicate strategy and FDA communications. Identifying the consultant behind a submission is a key signal for competitive regulatory intelligence.

Regulatory Peers - JWY Manual Antimicrobial Susceptibility Test Systems

All 440
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