Cleared Traditional

XPERT GBS LB GENEXPERT DX SYSTEMS (GX-I, GX-IV) GENEXPERT DX SYSTEMS (GX-XVI) GENEXPERT INFINITY-48 SYSTEM (900-XXXX) (K121539) - FDA 510(k) Clearance

Class I Microbiology device.

Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Nov 2012
Decision
162d
Days
Class 1
Risk

K121539 is an FDA 510(k) clearance for the XPERT GBS LB GENEXPERT DX SYSTEMS (GX-I, GX-IV) GENEXPERT DX SYSTEMS (GX-XVI).... Classified as Nucleic Acid Amplification Assay System, Group B Streptococcus, Direct Specimen Test (product code NJR), Class I - General Controls.

Submitted by Cepheid (Sunnyvale, US). The FDA issued a Cleared decision on November 2, 2012 after a review of 162 days - an extended review cycle.

This device falls under the Microbiology FDA review panel, regulated under 21 CFR 866.3740 - 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 Cepheid devices

Submission Details

510(k) Number K121539 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received May 24, 2012
Decision Date November 02, 2012
Days to Decision 162 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
60d slower than avg
Panel avg: 102d · This submission: 162d
Pathway characteristics
Predicate-based equivalence.

Device Classification

Product Code NJR Nucleic Acid Amplification Assay System, Group B Streptococcus, Direct Specimen Test
Device Class Class 1 - General Controls
CFR Regulation 21 CFR 866.3740
Definition A Nucleic Acid Amplification Assay System (including Probes, Other Reagents, And Instrumentation) Is An Aid In The Identification Of Group B Streptococci From Pre-partum And Intra-partum Women To Establish Colonization Status.
What this classification means

Class I devices are subject to general controls only and most are exempt from 510(k) premarket notification. They represent the lowest regulatory burden in the FDA device framework.

Regulatory Peers - NJR Nucleic Acid Amplification Assay System, Group B Streptococcus, Direct Specimen Test

All 17
Devices cleared under the same product code (NJR) and FDA review panel - the closest regulatory comparables to K121539.
Xpert® Xpress GBS, GeneXpert® Dx System, GeneXpert® Infinity Systems
K222638 · Cepheid · Sep 2023
Xpert GBS LB XC, GeneXpert Dx System, GeneXpert Infinity System
K203429 · Cepheid · May 2022
Simplexa GBS Direct, Simplexa GBS Positive Control Pack
K182467 · Diasorin Molecular, LLC · Nov 2018
Panther Fusion GBS Assay
K181156 · Diagenode · Jul 2018
NeuMoDx GBS Assay
K173725 · Neumodx Molecular, Inc. · Jun 2018