K Number
K231758
Device Name
NxTAG Respiratory Pathogen Panel v2 (NxTAG RPP v2)
Date Cleared
2024-03-11

(269 days)

Product Code
Regulation Number
866.3981
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The NxTAG® Respiratory Pathogen Panel v2 (NxTAG® RPP v2) is a multiplexed polymerase chain reaction (PCR) test intended for the simultaneous, qualitative detection of multiple respiratory viral and bacterial nucleic acids in nasopharyngeal swab specimens obtained from individuals with signs and symptoms of respiratory tract infection, including COVID-19. The following organism types and subtypes are identified and differentiated using the NxTAG RPPv2: Viral Targets: Influenza A, Influenza A H1, Influenza A H1pdm09, Influenza B, Respiratory Syncytial Virus A, Respiratory Syncytial Virus B, SARS-CoV-2, Coronavirus 229E, Coronavirus OC43, Coronavirus NL63, Coronavirus HKU1, Human Metapneumovirus, Rhinovirus, Adenovirus, Parainfluenza 1, Parainfluenza 2, Parainfluenza 3, Parainfluenza 4 Bacterial Targets: Chlamydia pneumoniae, Mycoplasma pneumoniae Nucleic acids from the viral and bacterial organisms identified by this test are generally detectable in nasopharyngeal specimens during the acute phase of infection. The detection of specific viral and bacterial nucleic acids from individuals exhibiting signs and or symptoms of respiratory infection are indicative of the identified microorganism and aids in diagnosis if used in conjunction with other clinical and epidemiological information, and laboratory findings. The results of this test should not be used as the sole basis for diagnosis, treatment management decisions. Negative results in the setting of a respiratory illness may be due to infection with pathogens that are not detected by this test, or lower respiratory tract infection that may not be detected by a nasopharyngeal swab specimen. Positive results do not rule out coinfection with other organisms. The agent(s) detected by the NxTAG RPP v2 may not be the definite cause of disease. Additional laboratory testing (e.g., bacterial and viral culture, immunofluorescence, and radiography) may be necessary when evaluating a patient with possible respiratory tract infection. The NxTAG® Respiratory Pathogen Panel v2 is indicated for use with the Luminex® MAGPIX® Instrument and xPONENT® and SYNCTTM software.
Device Description
The NxTAG® Respiratory Pathogen Panel v2 (NxTAG® RPP v2) is designed to simultaneously detect and identify 21 different potential pathogens of respiratory tract infections, including the novel coronavirus SARS-CoV-2, from a single NPS specimen in transport medium. NxTAG® RPP v2 is compatible with Luminex's MAGPIX Instrument, and xPONENT® and SYNCT™ software. It incorporates multiplex Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) with the Luminex® proprietary universal tag sorting system on the Luminex platform to easily detect the 21 respiratory pathogen targets. Samples are extracted using the IVD-labeled bioMérieux NucliSENS® easyMag® or EMAG® extraction systems. Extracted total nucleic acid is then added to the sealed 96-well micro plate by piercing the seal with pipette tips. Each reaction well is pre-plated with two Lyophilized Bead Reagents (LBRs) that contain all the required reagents including primer mixes, bead mix, and enzyme buffer systems. Once the LBRs are resuspended, the reaction wells are re-sealed using the foils provided in the kit. The sealed plate can be placed inside the thermocycler. The reaction is amplified via RT-PCR and the reaction product undergoes near simultaneous bead hybridization within the sealed reaction wells. The hybridized, tagged beads are then sorted and read on the Luminex® MAGPIX® instrument. The MAGPIX® instrument generates a signal in the form of a median fluorescence intensity (MFI) value for each bead population. The signals are analyzed using the NxTAG® Respiratory Pathogen Panel v2 Assay File for SYNCT™ Software, providing a reliable, qualitative call for each of the 21 targets and internal controls within each reaction well.
More Information

Not Found

No
The description focuses on standard molecular diagnostic techniques (PCR, hybridization, fluorescence intensity measurement) and software for analyzing MFI values, with no mention of AI or ML algorithms for data interpretation or diagnosis.

No
This device is an in vitro diagnostic (IVD) test used for the detection and identification of pathogens, which aids in diagnosis. It does not provide treatment or therapy.

Yes

The "Intended Use / Indications for Use" section explicitly states that the device "aids in diagnosis if used in conjunction with other clinical and epidemiological information, and laboratory findings" for identifying microorganisms related to respiratory infections.

No

The device is a multiplexed PCR test that involves physical reagents, sample preparation, and analysis on a specific hardware instrument (Luminex MAGPIX). While it uses software for analysis, it is not solely software.

Yes, this device is an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use: The intended use explicitly states that the device is for the "simultaneous, qualitative detection of multiple respiratory viral and bacterial nucleic acids in nasopharyngeal swab specimens obtained from individuals with signs and symptoms of respiratory tract infection, including COVID-19." This is a classic description of an in vitro diagnostic test, as it analyzes a biological sample (nasopharyngeal swab) outside of the body to aid in the diagnosis of a disease.
  • Device Description: The device description details the process of extracting nucleic acids from the sample, performing RT-PCR, and analyzing the results to identify specific pathogens. This entire process is performed in vitro (in a lab setting).
  • Clinical Study: The description of the clinical study further supports its IVD nature. The study evaluates the performance of the device in detecting pathogens in clinical specimens and compares the results to other diagnostic methods.
  • Predicate Device: The mention of a predicate device (BioFire Respiratory Panel 2.1) with a K number (DEN200031) indicates that this device is being compared to another legally marketed IVD device.

Therefore, based on the provided information, the NxTAG® Respiratory Pathogen Panel v2 clearly fits the definition of an In Vitro Diagnostic device.

N/A

Intended Use / Indications for Use

The NxTAG® Respiratory Pathogen Panel v2 (NxTAG® RPP v2) is a multiplexed polymerase chain reaction (PCR) test intended for the simultaneous, qualitative detection of multiple respiratory viral and bacterial nucleic acids in nasopharyngeal swab specimens obtained from individuals with signs and symptoms of respiratory tract infection, including COVID-19.

The following organism types and subtypes are identified and differentiated using the NxTAG RPPv2:

Viral Targets: Influenza A, Influenza A H1, Influenza A H1pdm09, Influenza B, Respiratory Syncytial Virus A, Respiratory Syncytial Virus B, SARS-CoV-2, Coronavirus 229E, Coronavirus OC43, Coronavirus NL63, Coronavirus HKU1, Human Metapneumovirus, Rhinovirus, Adenovirus, Parainfluenza 1, Parainfluenza 2, Parainfluenza 3, Parainfluenza 4

Bacterial Targets: Chlamydia pneumoniae, Mycoplasma pneumoniae

Nucleic acids from the viral and bacterial organisms identified by this test are generally detectable in nasopharyngeal specimens during the acute phase of infection. The detection of specific viral and bacterial nucleic acids from individuals exhibiting signs and or symptoms of respiratory infection are indicative of the identified microorganism and aids in diagnosis if used in conjunction with other clinical and epidemiological information, and laboratory findings. The results of this test should not be used as the sole basis for diagnosis, treatment management decisions.

Negative results in the setting of a respiratory illness may be due to infection with pathogens that are not detected by this test, or lower respiratory tract infection that may not be detected by a nasopharyngeal swab specimen. Positive results do not rule out coinfection with other organisms. The agent(s) detected by the NxTAG RPP v2 may not be the definite cause of disease.

Additional laboratory testing (e.g., bacterial and viral culture, immunofluorescence, and radiography) may be necessary when evaluating a patient with possible respiratory tract infection.

The NxTAG® Respiratory Pathogen Panel v2 is indicated for use with the Luminex® MAGPIX® Instrument and xPONENT® and SYNCTTM software.

Product codes

OOF

Device Description

The NxTAG® Respiratory Pathogen Panel v2 (NxTAG® RPP v2) is designed to simultaneously detect and identify 21 different potential pathogens of respiratory tract infections, including the novel coronavirus SARS-CoV-2, from a single NPS specimen in transport medium. NxTAG® RPP v2 is compatible with Luminex's MAGPIX Instrument, and xPONENT® and SYNCT™ software. It incorporates multiplex Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) with the Luminex® proprietary universal tag sorting system on the Luminex platform to easily detect the 21 respiratory pathogen targets.

Samples are extracted using the IVD-labeled bioMérieux NucliSENS® easyMag® or EMAG® extraction systems. Extracted total nucleic acid is then added to the sealed 96-well micro plate by piercing the seal with pipette tips. Each reaction well is pre-plated with two Lyophilized Bead Reagents (LBRs) that contain all the required reagents including primer mixes, bead mix, and enzyme buffer systems. Once the LBRs are resuspended, the reaction wells are re-sealed using the foils provided in the kit. The sealed plate can be placed inside the thermocycler. The reaction is amplified via RT-PCR and the reaction product undergoes near simultaneous bead hybridization within the sealed reaction wells. The hybridized, tagged beads are then sorted and read on the Luminex® MAGPIX® instrument. The MAGPIX® instrument generates a signal in the form of a median fluorescence intensity (MFI) value for each bead population.

The signals are analyzed using the NxTAG® Respiratory Pathogen Panel v2 Assay File for SYNCT™ Software, providing a reliable, qualitative call for each of the 21 targets and internal controls within each reaction well.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

nasopharyngeal swab specimens

Indicated Patient Age Range

The study utilized leftover, de-identified specimens collected from pediatric and adult patients exhibiting clinical signs and symptoms of a respiratory tract infection.

Intended User / Care Setting

Not Found

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

A total of 1844 prospective specimens, collected from five geographically diverse US sites were initially enrolled in the study.
The clinical study utilized leftover, de-identified specimens collected from pediatric and adult patients exhibiting clinical signs and symptoms of a respiratory tract infection.
The NxTAG® RPP v2 results were compared to those obtained with an FDA-cleared molecular assay and PCR/bi-directional sequencing for influenza A subtyping. The twostep PCR analysis followed by BDS assays employed two independent sets of validated PCR assays. The primers used for PCR analysis and sequencing assays, where possible, were designed to amplify distinct regions from the investigational device. PCR analysis composite positive specimens were confirmed by BDS assays.
For targets that exhibited low prevalence rates in the prospective study cohort, the prospective specimen set was supplemented with 320 pre-selected left-over, deidentified specimens (Arm 2) sourced from six sites in the United States. Pre-selected specimens were identified by Standard of Care (SoC) results and confirmed by BDS testing prior to enrollment in the study. To minimize bias, pre-selected specimens were tested in a randomized, blinded manner with negative specimens at four sites.

Summary of Performance Studies

The performance of NxTAG® RPP v2 was assessed based on analytical performance and clinical performance.

Analytical Performance:

  • Precision (Reproducibility and Repeatability):
    • Site-to-Site Reproducibility: A study was performed across 3 sites, with 2 operators at each site testing a 9-member reproducibility panel in 4 replicates on 5 non-consecutive days (total of 30 runs, 120 data points per sample member). Overall percent agreement was 99.90%.
    • Lot-to-Lot Reproducibility: A study was performed at 1 site with 1 operator testing a 17-member reproducibility panel in 10 replicates on each of 3 assay kit lots (total of 30 data points per sample member). Overall percent agreement was 99.95%.
  • Detection Limit (LoD): LoD was assessed for each target by testing simulated samples prepared from high-titer cultured material or characterized clinical specimens. The LoD concentration for each target was defined as the lowest concentration at which ≥ 95% (≥ 19/20) of the replicates could be reproducibly detected.
  • Analytical Sensitivity for the First WHO International Standard for SARS-CoV-2: Evaluated at various concentrations (1/3x, 1x, 3x preliminary LoD). Determined as the lowest concentration at which ≥ 95% of replicates generated a positive call.
  • Analytical Reactivity (Inclusivity): Assessed by testing 193 pathogen strains/isolates (168 reactivity strains and 25 LoD strains) in triplicate. Successfully detected all but one Influenza A H1 strain (A/Denver/1/57 H1, subtype not detected) at tested concentrations. In silico analysis predicted ~99% inclusivity for Influenza A and B, and ≥96% for other targets (except Parainfluenza Virus 2 (~92%) and untyped Parainfluenza Virus 4 (~94%)).
  • Analytical Specificity (Exclusivity):
    • Cross-Reactivity: Tested 63 organisms (82 strains total, 41 off-panel, 22 on-panel) in triplicate at high positive concentration. None showed cross-reactivity, except Enterovirus (Species D, Type 68, US/IL/14-18952) which generated a false positive for Influenza A H3 at ≥ 1.00E+03 TCID50/mL.
    • In Silico Analysis: Predicted potential cross-reactivity of SARS-CoV-2 oligos with some SARS-related/bat coronaviruses, and Coronavirus 229E oligos with one bat 229E-like coronavirus sequence at high viral titer.
  • Microbial Interference: Evaluated 11 off-panel organisms against 22 on-panel organisms. No off-panel organism at high positive concentration interfered with the detection of any on-panel organism at low-moderate positive concentration.
  • Competitive Interference (Co-infection): Evaluated effect of high positive on-panel organisms on low-moderate positive on-panel organisms. No interference was detected. Additional testing for SARS-CoV-2 (low positive) against other high positive targets showed no interference.
  • Interfering Substances: Tested 20 non-microbial substances. Menthol interfered with Coronavirus OC43 at 1% w/v (no interference at 0.5% w/v). FluMist® generated expected positive calls for Influenza A, H1pdm09, H3, and B, as it contains attenuated strains.
  • Carry-Over/Cross-Contamination: Assessed for SARS-CoV-2 and Mycoplasma pneumoniae. Two false positives were observed for SARS-CoV-2 initially, but were resolved upon re-preparation and re-testing.

Comparison Studies:

  • Matrix and Multi-Analyte Sample Comparison: Demonstrated equivalency between multi-analyte (MA) and single target samples, and between NCM and negative simulated matrix (NSM). All targets in MA samples generated ≥ 95% positivity.
  • Specimen Collection Device Comparison: Nylon flocked tip and polyester tip swabs showed 100% positivity. Rayon-tipped swabs showed lower positivity (33% or 67% for certain targets), indicating they should not be used.
  • Specimen Collection Media and Extraction Comparison: Demonstrated equivalency between UTM and M4RT collection media, and between easyMAG and EMAG extraction systems, with ≥ 95% positivity for targets at ≤ 2x LoD.

Clinical Performance:

  • Study Design: Multi-site clinical study with prospective (Arm 1, n=1820 valid) and pre-selected (Arm 2, n=308 valid) de-identified nasopharyngeal swab specimens. Supplemented with contrived specimens (Arm 3, n=199 valid). Comparator methods included FDA-cleared molecular assays and PCR/bi-directional sequencing.
  • Key Results:
    • Prospective Data Set (Table 19):
      • Adenovirus: PPA 95.9%, NPA 99.6%
      • Coronavirus 229E: PPA 100%, NPA 99.9%
      • Coronavirus HKU1: PPA 95.2%, NPA 100%
      • Coronavirus NL63: PPA 92.3%, NPA 100%
      • Coronavirus OC43: PPA 100%, NPA 100%
      • Human Metapneumovirus: PPA 100%, NPA 99.2%
      • Influenza A: PPA 100%, NPA 99.8%
      • Influenza A H1pdm09: PPA 100%, NPA 100%
      • Influenza A H1: PPA N/A (0/0 positives), NPA 100%
      • Influenza A H3: PPA 95.7%, NPA 99.9%
      • Influenza B: PPA 100%, NPA 100%
      • Parainfluenza 1: PPA 100%, NPA 100%
      • Parainfluenza 2: PPA 100%, NPA 100%
      • Parainfluenza 3: PPA 90%, NPA 100%
      • Parainfluenza 4: PPA 100%, NPA 99.9%
      • RSV A: PPA 86.7%, NPA 99.8%
      • RSV B: PPA 100%, NPA 99.8%
      • Rhinovirus / Enterovirus: PPA 100%, NPA 100%
      • SARS-CoV-2: PPA 95.1%, NPA 99.9%
      • Chlamydia pneumoniae: PPA N/A (0/0 positives), NPA 100%
      • Mycoplasma pneumoniae: PPA N/A (0/0 positives), NPA 100%
    • Pre-Selected Data Set (Table 20): Generally high PPA and NPA (100% for many targets,
      • with a few in the 90s). Examples: Coronavirus HKU1 PPA 93.8%, Mycoplasma pneumoniae
      • PPA 92.3%.
    • Contrived Data Set (Table 21): High PPA and NPA (mostly 100%, some in upper 90s). Examples:
      • RSV B PPA 98.0%, Chlamydia pneumoniae PPA 98.0%.

Conclusion: The study results demonstrate that the diagnostic accuracy of the NxTAG® RPP v2 assay is acceptable for the detections and identification of respiratory bacteria and viruses from NPS specimens collected from patients exhibiting clinical signs and symptoms of RTI.

Key Metrics

Clinical Performance - Prospective Data Set (Table 19):

  • Adenovirus: PPA 95.9% (94/98), NPA 99.6% (1709/1716)
  • Coronavirus 229E: PPA 100% (7/7), NPA 99.9% (1806/1807)
  • Coronavirus HKU1: PPA 95.2% (20/21), NPA 100% (1793/1793)
  • Coronavirus NL63: PPA 92.3% (48/52), NPA 100% (1762/1762)
  • Coronavirus OC43: PPA 100% (39/39), NPA 100% (1775/1775)
  • Human Metapneumovirus: PPA 100% (157/157), NPA 99.2% (1643/1657)
  • Influenza A: PPA 100% (74/74), NPA 99.8% (1737/1740)
  • Influenza A H1pdm09: PPA 100% (31/31), NPA 100% (1782/1782)
  • Influenza A H1: PPA N/A (0/0), NPA 100% (1813/1813)
  • Influenza A H3: PPA 95.7% (45/47), NPA 99.9% (1766/1767)
  • Influenza B: PPA 100% (11/11), NPA 100% (1803/1803)
  • Parainfluenza 1: PPA 100% (18/18), NPA 100% (1796/1796)
  • Parainfluenza 2: PPA 90% (9/10), NPA 100% (1804/1804)
  • Parainfluenza 3: PPA 100% (42/42), NPA 99.9% (1771/1772)
  • Parainfluenza 4: PPA 86.7% (13/15), NPA 99.8% (1796/1799)
  • RSV A: PPA 100% (55/55), NPA 99.8% (1756/1759)
  • RSV B: PPA 100% (20/20), NPA 100% (1794/1794)
  • Rhinovirus / Enterovirus: PPA 95.1% (351/369), NPA 99.9% (1444/1445)
  • SARS-CoV-2: PPA 97.9% (229/234), NPA 99.3% (1558/1569)
  • Chlamydia pneumoniae: PPA N/A (0/0), NPA 100% (1814/1814)
  • Mycoplasma pneumoniae: PPA N/A (0/0), NPA 100% (1814/1814)

Clinical Performance - Pre-Selected Data Set (Table 20):

  • Adenovirus: PPA 100% (1/1), NPA 100% (307/307)
  • Coronavirus 229E: PPA 100% (11/11), NPA 100% (297/297)
  • Coronavirus HKU1: PPA 93.8% (30/32), NPA 100% (276/276)
  • Coronavirus NL63: PPA N/A (0/0), NPA 100% (308/308)
  • Coronavirus OC43: PPA N/A (0/0), NPA 100% (308/308)
  • Human Metapneumovirus: PPA N/A (0/0), NPA 100% (308/308)
  • Influenza A: PPA 100% (30/30), NPA 99.6% (277/278)
  • Influenza A H1pdm09: PPA 96.7% (29/30), NPA 100% (278/278)
  • Influenza A H1: PPA N/A (0/0), NPA 99.6% (277/278)
  • Influenza A H3: PPA N/A (0/0), NPA 100% (278/278)
  • Influenza B: PPA 100% (30/30), NPA 100% (278/278)
  • Parainfluenza 1: PPA 100% (29/29), NPA 100% (279/279)
  • Parainfluenza 2: PPA 100% (30/30), NPA 100% (278/278)
  • Parainfluenza 3: PPA N/A (0/0), NPA 100% (307/307)
  • Parainfluenza 4: PPA 93.8% (15/16), NPA 100% (292/292)
  • RSV A: PPA N/A (0/0), NPA 99.3% (305/307)
  • RSV B: PPA N/A (0/0), NPA 99.7% (306/307)
  • Rhinovirus / Enterovirus: PPA 100% (1/1), NPA 98.7% (302/306)
  • SARS-CoV-2: PPA N/A (0/0), NPA N/A (0/0)
  • Chlamydia pneumoniae: PPA 100% (14/14), NPA 99.7% (293/294)
  • Mycoplasma pneumoniae: PPA 92.3% (48/52), NPA 100% (256/256)

Clinical Performance - Contrived Data Set (Table 21):

  • Coronavirus 229E: PPA 100% (49/49), NPA 100% (150/150)
  • Influenza A (matrix): PPA 100% (50/50), NPA 100% (149/149)
  • Influenza A H1 (subtype): PPA 100% (50/50), NPA 100% (149/149)
  • RSV B: PPA 98.0% (49/50), NPA 99.3% (148/149)
  • Chlamydia pneumoniae: PPA 98.0% (49/50), NPA 100% (149/149)

Predicate Device(s)

BioFire Respiratory Panel 2.1, DEN200031

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 866.3981 Device to detect and identify nucleic acid targets in respiratory specimens from microbial agents that cause the SARS-CoV-2 respiratory infection and other microbial agents when in a multi-target test.

(a)
Identification. A device to detect and identify nucleic acid targets in respiratory specimens from microbial agents that cause the SARS-CoV-2 respiratory infection and other microbial agents when in a multi-target test is an in vitro diagnostic device intended for the detection and identification of SARS-CoV-2 and other microbial agents when in a multi-target test in human clinical respiratory specimens from patients suspected of respiratory infection who are at risk for exposure or who may have been exposed to these agents. The device is intended to aid in the diagnosis of respiratory infection in conjunction with other clinical, epidemiologic, and laboratory data or other risk factors.(b)
Classification. Class II (special controls). The special controls for this device are:(1) The intended use in the labeling required under § 809.10 of this chapter must include a description of the following: Analytes and targets the device detects and identifies, the specimen types tested, the results provided to the user, the clinical indications for which the test is to be used, the specific intended population(s), the intended use locations including testing location(s) where the device is to be used (if applicable), and other conditions of use as appropriate.
(2) Any sample collection device used must be FDA-cleared, -approved, or -classified as 510(k) exempt (standalone or as part of a test system) for the collection of specimen types claimed by this device; alternatively, the sample collection device must be cleared in a premarket submission as a part of this device.
(3) The labeling required under § 809.10(b) of this chapter must include:
(i) A detailed device description, including reagents, instruments, ancillary materials, all control elements, and a detailed explanation of the methodology, including all pre-analytical methods for processing of specimens;
(ii) Detailed descriptions of the performance characteristics of the device for each specimen type claimed in the intended use based on analytical studies including the following, as applicable: Limit of Detection, inclusivity, cross-reactivity, interfering substances, competitive inhibition, carryover/cross contamination, specimen stability, precision, reproducibility, and clinical studies;
(iii) Detailed descriptions of the test procedure(s), the interpretation of test results for clinical specimens, and acceptance criteria for any quality control testing;
(iv) A warning statement that viral culture should not be attempted in cases of positive results for SARS-CoV-2 and/or any similar microbial agents unless a facility with an appropriate level of laboratory biosafety (
e.g., BSL 3 and BSL 3+, etc.) is available to receive and culture specimens; and(v) A prominent statement that device performance has not been established for specimens collected from individuals not identified in the intended use population (
e.g., when applicable, that device performance has not been established in individuals without signs or symptoms of respiratory infection).(vi) Limiting statements that indicate that:
(A) A negative test result does not preclude the possibility of infection;
(B) The test results should be interpreted in conjunction with other clinical and laboratory data available to the clinician;
(C) There is a risk of incorrect results due to the presence of nucleic acid sequence variants in the targeted pathogens;
(D) That positive and negative predictive values are highly dependent on prevalence;
(E) Accurate results are dependent on adequate specimen collection, transport, storage, and processing. Failure to observe proper procedures in any one of these steps can lead to incorrect results; and
(F) When applicable (
e.g., recommended by the Centers for Disease Control and Prevention, by current well-accepted clinical guidelines, or by published peer-reviewed literature), that the clinical performance may be affected by testing a specific clinical subpopulation or for a specific claimed specimen type.(4) Design verification and validation must include:
(i) Detailed documentation, including performance results, from a clinical study that includes prospective (sequential) samples for each claimed specimen type and, as appropriate, additional characterized clinical samples. The clinical study must be performed on a study population consistent with the intended use population and compare the device performance to results obtained using a comparator that FDA has determined is appropriate. Detailed documentation must include the clinical study protocol (including a predefined statistical analysis plan), study report, testing results, and results of all statistical analyses.
(ii) Risk analysis and documentation demonstrating how risk control measures are implemented to address device system hazards, such as Failure Modes Effects Analysis and/or Hazard Analysis. This documentation must include a detailed description of a protocol (including all procedures and methods) for the continuous monitoring, identification, and handling of genetic mutations and/or novel respiratory pathogen isolates or strains (
e.g., regular review of published literature and periodic in silico analysis of target sequences to detect possible mismatches). All results of this protocol, including any findings, must be documented and must include any additional data analysis that is requested by FDA in response to any performance concerns identified under this section or identified by FDA during routine evaluation. Additionally, if requested by FDA, these evaluations must be submitted to FDA for FDA review within 48 hours of the request. Results that are reasonably interpreted to support the conclusion that novel respiratory pathogen strains or isolates impact the stated expected performance of the device must be sent to FDA immediately.(iii) A detailed description of the identity, phylogenetic relationship, and other recognized characterization of the respiratory pathogen(s) that the device is designed to detect. In addition, detailed documentation describing how to interpret the device results and other measures that might be needed for a laboratory diagnosis of respiratory infection.
(iv) A detailed device description, including device components, ancillary reagents required but not provided, and a detailed explanation of the methodology, including molecular target(s) for each analyte, design of target detection reagents, rationale for target selection, limiting factors of the device (
e.g., saturation level of hybridization and maximum amplification and detection cycle number, etc.), internal and external controls, and computational path from collected raw data to reported result (e.g., how collected raw signals are converted into a reported signal and result), as applicable.(v) A detailed description of device software, including software applications and hardware-based devices that incorporate software. The detailed description must include documentation of verification, validation, and hazard analysis and risk assessment activities, including an assessment of the impact of threats and vulnerabilities on device functionality and end users/patients as part of cybersecurity review.
(vi) For devices intended for the detection and identification of microbial agents for which an FDA recommended reference panel is available, design verification and validation must include the performance results of an analytical study testing the FDA recommended reference panel of characterized samples. Detailed documentation must be kept of that study and its results, including the study protocol, study report for the proposed intended use, testing results, and results of all statistical analyses.
(vii) For devices with an intended use that includes detection of Influenza A and Influenza B viruses and/or detection and differentiation between the Influenza A virus subtypes in human clinical specimens, the design verification and validation must include a detailed description of the identity, phylogenetic relationship, or other recognized characterization of the Influenza A and B viruses that the device is designed to detect, a description of how the device results might be used in a diagnostic algorithm and other measures that might be needed for a laboratory identification of Influenza A or B virus and of specific Influenza A virus subtypes, and a description of the clinical and epidemiological parameters that are relevant to a patient case diagnosis of Influenza A or B and of specific Influenza A virus subtypes. An evaluation of the device compared to a currently appropriate and FDA accepted comparator method. Detailed documentation must be kept of that study and its results, including the study protocol, study report for the proposed intended use, testing results, and results of all statistical analyses.
(5) When applicable, performance results of the analytical study testing the FDA recommended reference panel described in paragraph (b)(4)(vi) of this section must be included in the device's labeling under § 809.10(b) of this chapter.
(6) For devices with an intended use that includes detection of Influenza A and Influenza B viruses and/or detection and differentiation between the Influenza A virus subtypes in human clinical specimens in addition to detection of SARS-CoV-2 and similar microbial agents, the required labeling under § 809.10(b) of this chapter must include the following:
(i) Where applicable, a limiting statement that performance characteristics for Influenza A were established when Influenza A/H3 and A/H1-2009 (or other pertinent Influenza A subtypes) were the predominant Influenza A viruses in circulation.
(ii) Where applicable, a warning statement that reads if infection with a novel Influenza A virus is suspected based on current clinical and epidemiological screening criteria recommended by public health authorities, specimens should be collected with appropriate infection control precautions for novel virulent influenza viruses and sent to State or local health departments for testing. Viral culture should not be attempted in these cases unless a BSL 3+ facility is available to receive and culture specimens.
(iii) Where the device results interpretation involves combining the outputs of several targets to get the final results, such as a device that both detects Influenza A and differentiates all known Influenza A subtypes that are currently circulating, the device's labeling must include a clear interpretation instruction for all valid and invalid output combinations, and recommendations for any required followup actions or retesting in the case of an unusual or unexpected device result.
(iv) A limiting statement that if a specimen yields a positive result for Influenza A, but produces negative test results for all specific influenza A subtypes intended to be differentiated (
i.e., H1-2009 and H3), this result requires notification of appropriate local, State, or Federal public health authorities to determine necessary measures for verification and to further determine whether the specimen represents a novel strain of Influenza A.(7) If one of the actions listed at section 564(b)(1)(A) through (D) of the Federal Food, Drug, and Cosmetic Act occurs with respect to an influenza viral strain, or if the Secretary of Health and Human Services determines, under section 319(a) of the Public Health Service Act, that a disease or disorder presents a public health emergency, or that a public health emergency otherwise exists, with respect to an influenza viral strain:
(i) Within 30 days from the date that FDA notifies manufacturers that characterized viral samples are available for test evaluation, the manufacturer must have testing performed on the device with those influenza viral samples in accordance with a standardized protocol considered and determined by FDA to be acceptable and appropriate.
(ii) Within 60 days from the date that FDA notifies manufacturers that characterized influenza viral samples are available for test evaluation and continuing until 3 years from that date, the results of the influenza emergency analytical reactivity testing, including the detailed information for the virus tested as described in the certificate of authentication, must be included as part of the device's labeling in a tabular format, either by:
(A) Placing the results directly in the device's labeling required under § 809.10(b) of this chapter that accompanies the device in a separate section of the labeling where analytical reactivity testing data can be found, but separate from the annual analytical reactivity testing results; or
(B) In a section of the device's label or in other labeling that accompanies the device, prominently providing a hyperlink to the manufacturer's public website where the analytical reactivity testing data can be found. The manufacturer's website, as well as the primary part of the manufacturer's website that discusses the device, must provide a prominently placed hyperlink to the website containing this information and must allow unrestricted viewing access.

0

March 11, 2024

Image /page/0/Picture/1 description: The image shows the logo for the U.S. Food and Drug Administration (FDA). On the left is the Department of Health and Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.

Luminex Molecular Diagnostics, Inc. Kate Goscha Senior Manager, Regulatory Affairs 439 University Avenue Toronto, Ontario M5G 1Y8 Canada

Re: K231758

Trade/Device Name: NxTAG Respiratory Pathogen Panel v2 (NxTAG RPP v2) Regulation Number: 21 CFR 866.3981 Regulation Name: Device To Detect And Identify Nucleic Acid Targets In Respiratory Specimens From Microbial Agents That Cause The SARS-Cov-2 Respiratory Infection And Other Microbial Agents When In A Multi-Target Test Regulatory Class: Class II Product Code: OOF Dated: June 15, 2023 Received: June 16, 2023

Dear Kate Goscha:

We have reviewed your section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (the Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database available at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device"

1

(https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).

Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30. Design controls; 21 CFR 820.90. Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the OS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801 and Part 809); medical device reporting of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safetyreporting-combination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).

Sincerely. Joseph Briggs -S

Joseph Briggs Deputy Branch Chief Division of Microbiology Devices OHT7: Office of In Vitro Diagnostics Office of Product Evaluation and Quality Center for Devices and Radiological Health

2

Indications for Use

510(k) Number (if known) K231758

Device Name

NxTAG® Respiratory Pathogen Panel v2 (NxTAG® RPP v2)

Indications for Use (Describe)

The NxTAG® Respiratory Pathogen Panel v2 (NxTAG® RPP v2) is a multiplexed polymerase chain reaction (PCR) test intended for the simultaneous, qualitative detection of multiple respiratory viral and bacterial nucleic acids in nasopharyngeal swab specimens obtained from individuals with signs and symptoms of respiratory tract infection, including COVID-19.

The following organism types and subtypes are identified and differentiated using the NxTAG RPPv2:

Viral Targets: Influenza A, Influenza A H1, Influenza A H1pdm09, Influenza B, Respiratory Syncytial Virus A, Respiratory Syncytial Virus B, SARS-CoV-2, Coronavirus 229E, Coronavirus OC43, Coronavirus NL63, Coronavirus HKU1, Human Metapneumovirus, Rhinovirus, Adenovirus, Parainfluenza 1, Parainfluenza 2, Parainfluenza 3, Parainfluenza 4

Bacterial Targets: Chlamydia pneumoniae, Mycoplasma pneumoniae

Nucleic acids from the viral and bacterial organisms identified by this test are generally detectable in nasopharyngeal specimens during the acute phase of infection. The detection of specific viral and bacterial nucleic acids from individuals exhibiting signs and or symptoms of respiratory infection are indicative of the identified microorganism and aids in diagnosis if used in conjunction with other clinical and epidemiological information, and laboratory findings. The results of this test should not be used as the sole basis for diagnosis, treatment management decisions.

Negative results in the setting of a respiratory illness may be due to infection with pathogens that are not detected by this test, or lower respiratory tract infection that may not be detected by a nasopharyngeal swab specimen. Positive results do not rule out coinfection with other organisms. The agent(s) detected by the NxTAG RPP v2 may not be the definite cause of disease.

Additional laboratory testing (e.g., bacterial and viral culture, immunofluorescence, and radiography) may be necessary when evaluating a patient with possible respiratory tract infection.

The NxTAG® Respiratory Pathogen Panel v2 is indicated for use with the Luminex® MAGPIX® Instrument and xPONENT® and SYNCTTM software.

Type of Use (Select one or both, as applicable)

X Prescription Use (Part 21 CFR 801 Subpart D)

Over-The-Counter Use (21 CFR 801 Subpart C)

CONTINUE ON A SEPARATE PAGE IF NEEDED.

3

This section applies only to requirements of the Paperwork Reduction Act of 1995.

DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.

The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:

Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov

"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."

4

Image /page/4/Picture/0 description: The image shows the logo for Luminex. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray circle above the "i" in Luminex. A registered trademark symbol is next to the "x".

10.0 510(k) Summary

This Summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of 21 CFR 807.92.

Date Prepared: February 27, 2024

A. 510(k) Number:

K231758

B. Purpose for Submission:

Traditional 510(k)

C. Measurand:

The assay detects and identifies nucleic acids of the following respiratory pathogens: Influenza A, Influenza A H1, Influenza A H1pdm09, Influenza A H3, Influenza B, Respiratory Syncytial Virus A, Respiratory Syncytial Virus B, Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2), Coronavirus 229E, Coronavirus OC43, Coronavirus NL63, Coronavirus HKU1, Human Metapneumovirus, Rhinovirus/Enterovirus, Adenovirus, Parainfluenza 1, Parainfluenza 2, Parainfluenza 3, Parainfluenza 4, Chlamydia pneumoniae, and Mycoplasma pneumoniae.

D. Type of Test:

A multiplexed nucleic acid test intended for use with the Luminex® MAGPIX® Instrument, and xPONENT® and SYNCT™ software, for the qualitative detection and identification of multiple respiratory viral and bacterial nucleic acids in nasopharyngeal swabs (NPS) obtained from individuals with clinical signs and symptoms of a respiratory tract infection, including COVID-19.

E. Applicant:

Kate Goscha 439 University Avenue Toronto, Ontario M5G 1Y8 Canada (608) 203-8909 Luminex Molecular Diagnostics, Inc.

5

Image /page/5/Picture/0 description: The image shows the word "Luminex" in a bold, sans-serif font. The "i" in Luminex is dotted with a gray circle. To the right of the word Luminex is a registration mark.

F. Proprietary and Established Names:

NxTAG® Respiratory Pathogen Panel v2 (NxTAG® RPP v2)

G. Regulatory Information:

    1. Regulation Section:
      21 CFR 866.3981
    1. Classification:
      Class II (special controls)
    1. Product Code(s):
      QOF
    1. Panel:
      Microbiology (83)

H. Indications for Use:

    1. Indication(s) for use:
      The NxTAG® Respiratory Pathogen Panel v2 (NxTAG® RPP v2) is a multiplexed polymerase chain reaction (PCR) test intended for the simultaneous, qualitative detection and identification of multiple respiratory viral and bacterial nucleic acids in nasopharyngeal swab specimens obtained from individuals with signs and symptoms of respiratory tract infection, including COVID-19.

The following organism types and subtypes are identified and differentiated using the NxTAG RPP v2:

Viral Targets
Influenza ACoronavirus NL63
Influenza A H1Coronavirus HKU1
Influenza A H1pdm09Human Metapneumovirus

6

Viral Targets
Influenza A H3Rhinovirus/Enterovirus
Influenza BAdenovirus
Respiratory Syncytial Virus AParainfluenza 1
Respiratory Syncytial Virus BParainfluenza 2
SARS-CoV-2Parainfluenza 3
Coronavirus 229EParainfluenza 4
Coronavirus OC43
Bacterial Targets
Chlamydia pneumoniaeMycoplasma pneumoniae

Nucleic acids from the viral and bacterial organisms identified by this test are generally detectable in nasopharyngeal specimens during the acute phase of infection. The detection and identification of specific viral and bacterial nucleic acids from individuals exhibiting signs and/or symptoms of respiratory infection are indicative of the presence of the identified microorganism and aids in diagnosis if used in conjunction with other clinical and epidemiological information, and laboratory findings. The results of this test should not be used as the sole basis for diagnosis, treatment, or other patient management decisions.

Negative results in the setting of a respiratory illness may be due to infection with pathogens that are not detected by this test, or lower respiratory tract infection that may not be detected by a nasopharyngeal swab specimen. Positive results do not rule out coinfection with other organisms. The agent(s) detected by the NxTAG RPP v2 may not be the definite cause of disease.

Additional laboratory testing (e.g., bacterial and viral culture, immunofluorescence, and radiography) may be necessary when evaluating a patient with possible respiratory tract infection.

The NxTAG® Respiratory Pathogen Panel v2 is indicated for use with the Luminex® MAGPIX® Instrument and xPONENT® and SYNCT™ software.

    1. Special conditions for use statement(s):
      For prescription use only.

For in vitro diagnostic use.

7

Image /page/7/Picture/0 description: The image shows the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in "Luminex". A registered trademark symbol is located to the right of the "x".

3. Special instrument requirements:

  • . Sample Processing:
    • o Extraction: bioMérieux NUCLISENS® easyMAG® or EMAG® nucleic acid extraction systems
    • o Amplification: IVD-labeled Thermal Cycler required
  • . Sample Analysis: Luminex® MAGPIX® Instrument using xPONENT® and SYNCT™ software

Device Description: l.

The NxTAG® Respiratory Pathogen Panel v2 (NxTAG® RPP v2) is designed to simultaneously detect and identify 21 different potential pathogens of respiratory tract infections, including the novel coronavirus SARS-CoV-2, from a single NPS specimen in transport medium. NxTAG® RPP v2 is compatible with Luminex's MAGPIX Instrument, and xPONENT® and SYNCT™ software. It incorporates multiplex Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) with the Luminex® proprietary universal tag sorting system on the Luminex platform to easily detect the 21 respiratory pathogen targets.

Samples are extracted using the IVD-labeled bioMérieux NucliSENS® easyMag® or EMAG® extraction systems. Extracted total nucleic acid is then added to the sealed 96-well micro plate by piercing the seal with pipette tips. Each reaction well is pre-plated with two Lyophilized Bead Reagents (LBRs) that contain all the required reagents including primer mixes, bead mix, and enzyme buffer systems. Once the LBRs are resuspended, the reaction wells are re-sealed using the foils provided in the kit. The sealed plate can be placed inside the thermocycler. The reaction is amplified via RT-PCR and the reaction product undergoes near simultaneous bead hybridization within the sealed reaction wells. The hybridized, tagged beads are then sorted and read on the Luminex® MAGPIX® instrument. The MAGPIX® instrument generates a signal in the form of a median fluorescence intensity (MFI) value for each bead population.

The signals are analyzed using the NxTAG® Respiratory Pathogen Panel v2 Assay File for SYNCT™ Software, providing a reliable, qualitative call for each of the 21 targets and internal controls within each reaction well.

8

Image /page/8/Picture/0 description: The image shows the Luminex logo. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in Luminex. A registered trademark symbol is to the right of the x.

Substantial Equivalence Information: J.

    1. Predicate device name(s):
      BioFire Respiratory Panel 2.1 (RP2.1)

2. Predicate 510(k) number(s):

DEN200031

3. Comparison with predicate:

Device & Predicate Device(s):K231758DEN200031
Device Trade NameNxTAG Respiratory Pathogen
Panel v2BioFire Respiratory Panel 2.1
General Device Characteristic
Similarities
Intended Use/Indications For
UseThe Luminex NxTAG Respiratory
Pathogen Panel v2 (NxTAG RPP
v2) is a multiplexed polymerase
chain reaction (PCR) test
intended for the simultaneous,
qualitative detection and
identification of multiple
respiratory viral and bacterial
nucleic acids in nasopharyngeal
swab specimens obtained from
individuals with signs and
symptoms of respiratory tract
infection, including COVID-19.
The following organism types
and subtypes are identified and
differentiated using the NxTAG
RPP v2:
Viral targets:The BioFire Respiratory Panel
2.1 (RP2.1) is a PCR-based
multiplexed nucleic acid test
intended for use with the
BioFire FilmArray 2.0 or BioFire
FilmArray Torch systems for the
simultaneous qualitative
detection and identification of
multiple respiratory viral and
bacterial nucleic acids in
nasopharyngeal swabs (NPS)
obtained from individuals
suspected of respiratory tract
infections, including COVID-19.
The following organism types
and subtypes are identified
using the BioFire RP2.1:
Adenovirus
Influenza ACoronavirus 229E
Influenza A H1Coronavirus HKU1
Influenza A H1pdm09Coronavirus NL63
Influenza A H3Coronavirus OC43
Influenza BSevere Acute Respiratory
Respiratory Syncytial Virus ASyndrome Coronavirus (SARS-
CoV-2)
Respiratory Syncytial Virus BHuman Metapneumovirus
SARS-CoV-2Human Rhinovirus/Enterovirus
Coronavirus 229EInfluenza A, including subtypes
Coronavirus OC43H1, H1-2009, and H3
Coronavirus NL63Influenza B
Coronavirus HKU1Parainfluenza Virus 1
Human MetapneumovirusParainfluenza Virus 2
Rhinovirus/EnterovirusParainfluenza Virus 3
AdenovirusParainfluenza Virus 4
Parainfluenza Virus 1Respiratory Syncytial Virus
Parainfluenza Virus 2Bordetella parapertussis
Parainfluenza Virus 3(IS1001)
Parainfluenza Virus 4Bordetella pertussis (prxP)
Bacterial targets:Chlamydia pneumoniae and
Chlamydia pneumoniaeMycoplasma pneumoniae
Mycoplasma pneumoniaeNucleic acids from the
Nucleic acids from the viral and
bacterial organisms identified
by this test are generally
detectable in nasopharyngeal
specimens during the acute
phase of infection. The
detection and identification of
specific viral and bacterial
nucleic acids from individualsrespiratory viral and bacterial
organisms identified by this test
are generally detectable in NPS
specimens during the acute
phase of infection. The
detection and identification of
specific viral and bacterial
nucleic acids from individuals
exhibiting signs and/or
exhibiting signs and/or
symptoms of respiratory
infection are indicative of the
presence of the identified
microorganism and aids in
diagnosis if used in conjunction
with other clinical and
epidemiological information,
and laboratory findings. The
results of this test should not be
used as the sole basis for
diagnosis, treatment, or other
patient management decisions.
Negative results in the setting
of a respiratory illness may be
due to infection with pathogens
that are not detected by this
test, or lower respiratory tract
infection that may not be
detected by a nasopharyngeal
swab specimen. Positive results
do not rule out coinfection with
other organisms. The agent(s)
detected by the NxTAG RPPv2
may not be the definite cause
of disease.
Additional laboratory testing
(e.g., bacterial and viral culture,
immunofluorescence, and
radiography) may be necessary
when evaluating a patient with
possible respiratory tract
infection.
The NxTAG Respiratory
Pathogen Panel v2 is indicated
for use with the Luminex
MAGPIX Instrument and
xPONENT and SYNCT software.symptoms of respiratory
infection is indicative of the
presence of the identified
microorganism and aids in the
diagnosis of respiratory
infection if used in conjunction
with other clinical and
epidemiological information.
The results of this test should
not be used as the sole basis for
diagnosis, treatment, or other
patient management decisions.
Negative results in the setting
of a respiratory illness may be
due to infection with pathogens
that are not detected by this
test, or lower respiratory tract
infection that may not be
detected by an NPS specimen.
Positive results do not rule out
coinfection with other
organisms. The agent(s)
detected by the BioFire RP2.1
may not be the definite cause
of disease. Additional
laboratory testing (e.g. bacterial
and viral culture,
immunofluorescence, and
radiography) may be necessary
when evaluating a patient with
possible respiratory tract
infection.
Specimen TypeSameNasopharyngeal swabs
Patient PopulationIndividuals with signs and
symptoms of respiratory tract
infection, including COVID-19Individuals suspected of
respiratory tract infections,
including COVID-19
Organisms DetectedSame except for:
a) addition of assay for
differentiation of
Respiratory Syncytial Virus A
and B
b) omission of assays for
Bordetella pertussis and
Bordetella parapertussisViruses:
Adenovirus
Coronavirus 229E
Coronavirus HKU1
Coronavirus NL63
Coronavirus OC43
Severe Acute Respiratory
Syndrome Coronavirus 2 (SARS-
CoV-2)
Human Metapneumovirus
Human Rhinovirus/Enterovirus
Influenza A Virus
Subtypes: H1, H3, H1-2009
Influenza B Virus
Parainfluenza Virus 1
Parainfluenza Virus 2
Parainfluenza Virus 3
Parainfluenza Virus 4
Respiratory Syncytial Virus
Bacteria:
Bordetella parapertussis
Bordetella pertussis
Chlamydia pneumoniae
Mycoplasma pneumoniae
TechnologySamePCR amplification
General Device Characteristic
Differences
SystemSeparate instruments for
nucleic acid extraction, PCR
amplification and detectionIntegrated nucleic acid
extraction, amplification, and
detection in a sealed vessel.
Assay ReadMAGPIX InstrumentBIOFIRE FilmARRAY 2.0 or
BIOFIRE FilmArray Torch
Systems
DetectionHybridization of amplified
products with fluorescentlyArray-based melt curve analysis
labeled beads, sorting of tagged products

9

Confidential & Restricted

510(k) Summary

10

11

Image /page/11/Picture/0 description: The image shows the Luminex logo. The logo is in black and white and features the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in Luminex. The registered trademark symbol is to the right of the "x".

12

Image /page/12/Picture/0 description: The image shows the logo for Luminex. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in Luminex. The logo is simple and modern.

K. Standards/Guidance Documents Referenced:

Guidance

  • Highly Multiplexed Microbiological/Medical Countermeasure In Vitro Nucleic Acid Based Diagnostic Devices Guidance for Industry and Food and Drug Administration Staff - August 2014
  • . Respiratory Viral Panel Multiplex Nucleic Acid Assay – Class II Special Controls Guidance for Industry and FDA Staff - October 9, 2009
  • Guidance for Industry and FDA Staff Statistical Guidance on Reporting Results from Studies Evaluating Diagnostic Tests, March 13, 2007
  • Guidance on Informed Consent for In Vitro Diagnostic Device Studies using Leftover Human Specimens that are Not Individually Identifiable, January 2006
  • . Policy for Coronavirus Disease-2019 Tests during the Public Health Emergency (Revised). Immediately in Effect Guidance for Clinical Laboratories, Commercial Manufacturers, and Food and Drug Administration Staff, May 11, 2020

Standards

  • CLSI, EP05-A3, Evaluation of Precision of Quantitative Measurement Procedures; Approved Guideline - Third Edition
  • CLSI, EP07, Interference Testing in Clinical Chemistry; 3rd Edition
  • CLSI, EP12-A2, User Protocol for Evaluation of Qualitative Test Performance; Approved Guideline – Second Edition
  • CLSI, EP17-A2, Evaluation of Detection Capability for Clinical Laboratory Measurement Procedures; Approved Guideline – Second Edition
  • CLSI, EP24-A2, Assessment of the Diagnostic Accuracy of Laboratory Tests Using Receiver Operating Characteristic Curves; Approved Guideline—Second Edition
  • . CLSI, EP25-A, Evaluation of Stability of In Vitro Diagnostic Reagents; Approved Guideline
  • CLSI, EP37, Supplemental Tables for Interference Testing in Clinical Chemistry – First Edition
  • CLSI, MM03, Molecular Diagnostic Methods for Infectious Diseases; Approved Guideline - Third Edition
  • CLSI, MM09-A2, Nucleic Acid Sequencing Methods in Diagnostic Laboratory ● Medicine: Approved Guideline -- Second Edition
  • CLSI, MM17, Validation and Verification of Multiplex Nucleic Acid Assays – Second Edition

13

Image /page/13/Picture/0 description: The image shows the word "Luminex" in a bold, sans-serif font. The word is black, and there is a gray dot above the "i" in "Luminex". A registered trademark symbol is located to the right of the "x".

  • CLSI, MM18-A, Interpretive Criteria for Identification of Bacteria and Fungi by DNA Target Sequencing; Approved Guideline
  • ISO 14971:2019, Medical Devices – Application of Risk Management to Medical Devices
  • EN ISO 23640:2015, In vitro diagnostic medical devices Evaluation of stability of in ● vitro diagnostics reagents

L. Test Principle:

The NxTAG® Respiratory Pathogen Panel v2 (NxTAG® RPP v2) incorporates multiplex Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) with the Luminex® proprietary universal tag sorting system on the Luminex platform to detect respiratory pathogen targets. Extracted total nucleic acid is added to pre-plated, Lyophilized Bead Reagents (LBRs), and mixed to resuspend the reaction reagents. The reaction is amplified via RT-PCR and the reaction product undergoes near simultaneous microsphere hybridization within the sealed reaction well. The hybridized, tagged microspheres are then sorted and read on the MAGPIX® instrument. The generated signals are analyzed using the NxTAG® Respiratory Pathogen Panel v2 Assay File for SYNCT™ Software, providing a reliable, qualitative call for each of the targets and internal controls within each reaction well.

M. Performance Characteristics:

1. Analytical performance:

  • a. Precision (Reproducibility and Repeatability):

Site-to-Site Reproducibility

A site-to-site reproducibility study was performed to assess the total variability of the NxTAG® Respiratory Pathogen Panel (NxTAG RPP v2) assay across study sites, operators, testing days, and instruments. Two operators at each of the 3 sites tested a 9-member reproducibility panel in 4 replicates on 5 non-consecutive days, for a total of 30 runs (3 sites x 2 operators x 5 days). For each member of the 9-member panel, a total of 120 data points (30 runs x 4 replicates) were generated using 1 assay kit lot. The reproducibility panel comprised of a negative sample and 4 multi-analyte (MA) samples prepared in negative simulated matrix (NSM) at two concentrations, Low Positive (1.5x - 3x LoD) and Moderate Positive (5x – 9x LoD). The test concentration for Influenza A H3 (in sample MA2) is based on the LoD for the subtype. Since the Influenza A H3 matrix LoD is 3-fold less sensitive than the subtype, the expected results for the matrix at 1.5x of the subtype LoD was either "positive" or "negative

14

Lu

(i.e. both results were acceptable based on the respective LoDs of the Influenza A and H3 targets). Therefore, the Influenza A matrix result in sample MA2 could not be assessed and was excluded from data analysis. The results demonstrated reproducibility of the NxTAG RPP v2 assay across 3 sites with an overall percent agreement of 99.90%. The summary of results is shown in Table 1.

| Sample | Target | Sample Type | Agreement with Expected Results | | | | Overall
(All Sites) |
|--------|----------------------------------|-------------------|---------------------------------|-------------------|---------------------|-----------------------|------------------------|
| | Influenza A
H1pdm09 | Low Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) | 240/240
(100%) |
| | Influenza A
H1pdm09 | Moderate Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) | 240/240
(100%) |
| MA1 | Respiratory
Syncytial Virus A | Low Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) | 240/240
(100%) |
| | Respiratory
Syncytial Virus A | Moderate Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) | 240/240
(100%) |
| | Rhinovirusa | Low Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) | 240/240
(100%) |
| | Rhinovirusa | Moderate Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) | 240/240
(100%) |
| | All other
targets | Low Positive | 719/720
(99.86) | 720/720
(100%) | 720/720
(100%) | 2159/2160
(99.95%) | 4316/4320
(99.91%) |
| | All other
targets | Moderate Positive | 718/720
(99.72%) | 720/720
(100%) | 719/720
(99.86%) | 2157/2160
(99.86%) | 4316/4320
(99.91%) |
| MA2 | Influenza A H3 | Low Positive | 39/40
(97.50%) | 40/40
(100%) | 40/40
(100%) | 119/120
(99.17%) | 239/240
(99.58%) |
| | Influenza A H3 | Moderate Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) | 239/240
(99.58%) |
| | Respiratory
Syncytial Virus B | Low Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) | 240/240
(100%) |
| | Respiratory
Syncytial Virus B | Moderate Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) | 240/240
(100%) |
| | All other
targets | Low Positive | 717/720
(99.58%) | 720/720
(100%) | 720/720
(100%) | 2157/2160
(99.86%) | 4434/4440b
(99.86%) |
| | All other
targets | Moderate Positive | 757/760
(99.61%) | 760/760
(100%) | 760/760
(100%) | 2277/2280
(99.87%) | 4434/4440b
(99.86%) |
| MA3 | Influenza B | Low Positive | 39/40
(97.50%) | 40/40
(100%) | 40/40
(100%) | 119/120
(99.17%) | 239/240
(99.58%) |
| | Influenza B | Moderate Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) | 239/240
(99.58%) |
| | Parainfluenza
virus 3 | Low Positive | 39/40
(97.50%) | 40/40
(100%) | 40/40
(100%) | 119/120
(99.17%) | 239/240
(99.58%) |
| | Parainfluenza
virus 3 | Moderate Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) | 239/240
(99.58%) |
| | Mycoplasma
pneumoniae | Low Positive | 39/40
(97.50%) | 40/40
(100%) | 40/40
(100%) | 119/120
(99.17%) | 239/240
(99.58%) |
| | Mycoplasma
pneumoniae | Moderate Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) | 239/240
(99.58%) |

15

| Sample | Target | Sample Type | Site 1 | Site 2 | Site 3 | Overall
(All Sites) |
|------------------------------------------------------------------------------|-------------------------------|-------------------|-----------------------|----------------------|-----------------------|-------------------------|
| | All other
targets | Low Positive | 718/720
(99.72%) | 720/720
(100%) | 720/720
(100%) | 2158/2160
(99.91%) |
| | targets | Moderate Positive | 719/720
(99.86%) | 720/720
(100%) | 720/720
(100%) | 2159/2160
(99.95%) |
| | SARS-CoV-2 | Low Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) |
| | | Moderate Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) |
| MA4 | Human
Metapneu-
movirus | Low Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) |
| | | Moderate Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) |
| | Adenovirus | Low Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) |
| | | Moderate Positive | 40/40
(100%) | 40/40
(100%) | 40/40
(100%) | 120/120
(100%) |
| | All other
targets | Low Positive | 716/720
(99.44%) | 720/720
(100%) | 720/720
(100%) | 2156/2160
(99.81%) |
| | | Moderate Positive | 719/720
(99.86%) | 720/720
(100%) | 720/720
(100%) | 2159/2160
(99.96%) |
| NEG | Negative | N/A | 840/840
(100%) | 840/840
(100%) | 840/840
(100%) | 2520/2520
(100%) |
| Overall Agreement with Expected Results
(all targets and all test levels) | | | 7499/7520
(99.72%) | 7520/752
0 (100%) | 7519/7520
(99.99%) | 22538/22560
(99.90%) |

ª Reported by NxTAG RPP v2 as Rhinovirus/Enterovirus

ካ Excludes results of Influenza A Matrix target at Low Positive concentration.

16

Lot-to-Lot Reproducibility

A lot-to-lot reproducibility study was performed to assess the total variability of the NxTAG® Respiratory Pathogen Panel (NxTAG RPP v2) assay across 3 assay kit lots with unique lots of critical reagents, including enzymes, buffers, primers, MagPlex microspheres, and dNTPs. One operator at 1 site tested 17-member reproducibility panel in 10 replicates on each of the 3 assay kit lots, for a total of 30 data points (10 replicates x 3 assay lots) for each member. The reproducibility panel comprised of a negative sample and 8 multi-analyte samples prepared in negative simulated matrix (NSM) at two concentrations, Low Positive (1.5x - 3x LoD) and Moderate Positive (5x -9x LoD). The test concentration for Influenza A H3 (in sample MA2) is based on the LoD for the subtype. Since the Influenza A H3 matrix LoD is 3-fold less sensitive than the subtype, the expected results for the matrix at 1.5x of the subtype LoD was either "positive" or "negative" (i.e. both results were acceptable based on the respective LoDs of the Influenza A and H3 targets). Therefore, the Influenza A matrix result in sample MA2 could not be assessed and was excluded from data analysis. The results demonstrated reproducibility of the NxTAG RPP v2 assay across 3 assay kit lots with an overall percent agreement of 99.95%. The summary of results is shown in Table 2.

Agreement with Expected Results
SampleTargetSample TypeLot 1Lot 2Lot 3Overall
(All Lots)
MA1Influenza A 2009
H1N1Low Positive10/10
(100%)10/10
(100%)10/10
(100%)30/30
(100%)60/60
(100%)
Moderate
Positive10/10
(100%)10/10
(100%)10/10
(100%)30/30
(100%)60/60
(100%)
Respiratory Syncytial
Virus ALow Positive10/10
(100%)10/10
(100%)10/10
(100%)30/30
(100%)60/60
(100%)
Moderate
Positive10/10
(100%)10/10
(100%)10/10
(100%)30/30
(100%)
RhinovirusaLow Positive10/10
(100%)10/10
(100%)10/10
(100%)30/30
(100%)60/60
(100%)
Moderate
Positive10/10
(100%)10/10
(100%)10/10
(100%)30/30
(100%)60/60
(100%)
All other targetsLow Positive180/180
(100%)180/180
(100%)180/180
(100%)540/540
(100%)1080/1080
(100%)
Moderate
Positive180/180
(100%)180/180
(100%)180/180
(100%)540/540
(100%)
MA2Influenza A H3Low Positive10/10
(100%)10/10
(100%)10/10
(100%)30/30
(100%)60/60
(100%)
Moderate
Positive10/10
(100%)10/10
(100%)10/10
(100%)30/30
(100%)60/60
(100%)
Respiratory Syncytial
Virus BLow Positive10/10
(100%)10/10
(100%)10/10
(100%)30/30
(100%)60/60
(100%)
Table 2: NxTAG® RPP v2 Lot-to-lot Reproducibility
-------------------------------------------------------

17

| Sample | Target | Sample Type | Agreement with Expected Results | | | Overall
(All Lots) | |
|------------------------------------------------------------------------------|----------------------------------------|----------------------|---------------------------------|-----------------------|-----------------------|-----------------------|----------------------|
| | | | Lot 1 | Lot 2 | Lot 3 | | |
| MA3 | All other targets | Moderate Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | |
| | | Low Positive | 180/180
(100%) | 180/180
(100%) | 180/180
(100%) | 540/540
(100%) | |
| | All other targets | Moderate Positive | 190/190
(100%) | 190/190
(100%) | 190/190
(100%) | 570/570
(100%) | 1110/1110
(100%)b |
| | | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | |
| | Influenza B | Moderate Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60
(100%) |
| | | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | |
| MA3 | Parainfluenza virus 3 | Moderate Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60
(100%) |
| | | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | |
| | Mycoplasma pneumoniae | Moderate Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60
(100%) |
| | | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | |
| | All other targets | Moderate Positive | 180/180
(100%) | 180/180
(100%) | 180/180
(100%) | 540/540
(100%) | 1080/1080
(100%) |
| | | Low Positive | 180/180
(100%) | 180/180
(100%) | 180/180
(100%) | 540/540
(100%) | |
| MA4 | SARS-CoV-2 | Moderate Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60
(100%) |
| | | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | |
| | Human Metapneumovirus | Moderate Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60
(100%) |
| | | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | |
| | Adenovirus | Moderate Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60
(100%) |
| | | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | |
| MA4 | All other targets | Moderate Positive | 180/180
(100%) | 180/180
(100%) | 180/180
(100%) | 540/540
(100%) | 1080/1080
(100%) |
| | | Low Positive | 180/180
(100%) | 180/180
(100%) | 180/180
(100%) | 540/540
(100%) | |
| | Influenza A Matrix | Moderate Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60
(100%) |
| | | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | |
| | Coronavirus NL63 | Moderate Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60
(100%) |
| | | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | |
| | | | Agreement with Expected Results | | | | |
| Sample | Target | Sample Type | Lot 1 | Lot 2 | Lot 3 | Overall
(All Lots) | |
| | | Positive | (100%) | (100%) | (100%) | (100%) | |
| | Coronavirus HKU1 | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60 |
| | | Moderate
Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | (100%) |
| | All other targets | Low Positive | 180/180
(100%) | 179/180
(99.44%) | 180/180
(100%) | 539/540
(99.81%) | 1079/1080 |
| | | Moderate
Positive | 180/180
(100%) | 180/180
(100%) | 180/180
(100%) | 540/540
(100%) | (99.90%) |
| | Influenza A H1 | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60 |
| | | Moderate
Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | (100%) |
| | Parainfluenza virus 1 | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60 |
| | | Moderate
Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | (100%) |
| MA6 | Chlamydia
pneumoniae | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60 |
| | | Moderate
Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | (100%) |
| | All other targets | Low Positive | 180/180
(100%) | 180/180
(100%) | 180/180
(100%) | 540/540
(100%) | 1079/1080 |
| | | Moderate
Positive | 180/180
(100%) | 179/180
(99.44%) | 180/180
(100%) | 539/540
(99.81%) | (99.91%) |
| | Parainfluenza virus 2 | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60 |
| | | Moderate
Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | (100%) |
| | Parainfluenza virus 4
(subtype 4B)c | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60 |
| MA7 | | Moderate
Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | (100%) |
| | Coronavirus 229E | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60 |
| | | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | (100%) |
| | All other targets | Moderate
Positive | 180/180
(100%) | 180/180
(100%) | 179/180
(99.44%) | 539/540
(99.81%) | 1079/1080 |
| | | Low Positive | 180/180
(100%) | 180/180
(100%) | 180/180
(100%) | 540/540
(100%) | (99.91%) |
| | Parainfluenza virus 4 | Moderate
Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60 |
| MA8 | (subtype 4A)€ | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | (100%) |
| Sample | Target | Sample Type | Agreement with Expected Results | | | Overall
(All Lots) | |
| | | | Lot 1 | Lot 2 | Lot 3 | | |
| | Coronavirus OC43 | Moderate
Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | 60/60
(100%) |
| | | Low Positive | 10/10
(100%) | 10/10
(100%) | 10/10
(100%) | 30/30
(100%) | |
| | All other targets | Moderate
Positive | 190/190
(100%) | 190/190
(100%) | 190/190
(100%) | 570/570
(100%) | 1140/1140
(100%) |
| | | Low Positive | 190/190
(100%) | 190/190
(100%) | 190/190
(100%) | 570/570
(100%) | |
| NEG | Negative | N/A | 208/210
(99.04%) | 210/210
(100%) | 210/210
(100%) | 628/630 (99.68%) | |
| Overall Agreement with Expected Results
(all targets and all test levels) | | | 3558/3560
(99.94%) | 3558/3560
(99.94%) | 3559/3560
(99.97%) | 10675/10680 (99.95%) | |

Confidential & Restricted

510(k) Summary

18

Confidential & Restricted

510(k) Summary

Page 15 of 60

19

ª Reported by NxTAG RPP v2 as Rhinovirus/Enterovirus

b Excludes results of Influenza A Matrix target at Low Positive concentration.

^ NxTAG RPP v2 does not distinguish Parainfluenza virus subtypes 4A and 4B which are both reported as Parainfluenza virus

20

Image /page/20/Picture/0 description: The image shows the logo for Luminex. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray circle above the "i" in Luminex. The logo is simple and modern.

  • b. Linearity/assay reportable range:
    Not applicable. The NxTAG® RPP v2 assay is a qualitative assay.

  • Traceability, Stability, Expected values (controls, calibrators, or methods): C.

    • Controls: i)
      • (a) Internal Control

Bacteriophage MS2 is the internal control for the assay. This internal positive control is added to each specimen prior to extraction. This internal control allows the user to ascertain whether the assay is functioning properly. Failure to detect the MS2 control indicates a failure at either the extraction step, the reverse-transcription step, the PCR step, or the detection step, and may be indicative of the presence of amplification inhibitors, thereby preventing false negative results.

(b) External Controls

External positive and negative controls should be used in accordance with local, state, federal accrediting organizations, as applicable.

  • Positive Control Positive controls are not included in the NxTAG® Respiratory Pathogen Panel v2 assay, but are recommended to be included in every run, as a good laboratory practice.
  • · Negative Amplification Control (No Template Control (NTC)) The negative amplification control is RNase- free water.
  • Negative Extraction Control (NEC) The negative extraction control is the sample collection medium that has undergone the entire assay procedure, starting from extraction.

ii) Stability:

(a) Specimen Stability

Stability of raw specimens in Universal Transport Media (UTM), and MicroTest™ M4RT, as well as, stability of extracted specimens were evaluated at temperatures ranging between 2ºC to 8ºC and -70ºC ± 5ºC on the NxTAG®

21

RPP v2 assay. For raw specimens prepared in negative clinical matrix in UTM and extracted specimens, all targets probed by the assay were evaluated with a set of 17 samples: eight multi-analyte samples contrived in negative clinical matrix at two concentrations, Low positive (1.5x - 3x LoD) and Moderate positive (5x – 9x LoD), and a negative sample (negative clinical matrix only). For raw specimens prepared in negative clinical matrix in M4RT, a subset of targets in four multi-analyte samples consisting of representative organisms and genome types, at two concentrations Low positive (1.5x – 3x LoD) and Moderate positive (5x – 9x LoD), as well as a negative sample were evaluated. Ten replicates were tested for each condition.

All samples met the acceptance criteria, and the data support a raw specimen stability claim of 7 days at 2°C to 8°C and 12 months at -70°C ± 5°C for both transport media tested, and an extracted specimen stability claim of 4 hours at 2°C to 8°C and 12 months at -70°C ± 5°C.

(b) Device Stability

A shelf-life study was conducted to evaluate the real-time stability of NxTAG® RPP v2 at the recommended storage conditions of 2 - 8°C. Real-time stability was assessed using Positive Controls that cover all analytes probed by the assay, extracted MS2 (internal control), and no template control. Results of this study demonstrated that NxTAG® RPP v2 is stable for at least 12 months when stored at 2 - 8°C.

In-use, open-pouch/vial stability of NxTAG® RPP v2 was also evaluated by mimicking in-use conditions of the kit, which was stored at the recommended storage conditions of 2 - 8°C. Stability was assessed using Positive Controls that cover all or a subset of analytes probed by the assay, MS2 (Internal Control) and a No Template Control. The study demonstrated 100% agreement between calls made with the NxTAG® RPP v2 assay on a cold block for an hour vs. the baseline and calls made with NxTAG® RPP v2 assay on a cold block that was replaced every 15 to 20 minutes vs. the baseline, and confirmed the stability of the NxTAG® RPP v2 assay after it is opened and resealed for 6 cycles over 5 weeks, at the recommended storage conditions.

d. Detection Limit:

The Limit of Detection (LoD) of the NxTAG® RPP v2 assay for each target was assessed by testing simulated samples prepared from high-titer cultured material obtained from commercial suppliers or characterized clinical specimens. For each target, a 3-fold dilution series was prepared in negative clinical matrix (NCM,

22

pooled negative nasopharyngeal swabs in Universal Transport Medium), extracted using bioMérieux® EMAG® extraction system, and tested with NxTAG® RPP v2 assay. The preliminary LoD for each target was confirmed by preparing and testing 20 replicates. The LoD concentration for each target was defined as the lowest concentration at which ≥ 95% (≥ 19/20) of the replicates can reproducibly be detected. A droplet digital PCR (ddPCR) assay was performed to quantitate clinical specimens and those culture stocks where titer information in copy number was not available. A summary of the confirmed LoD for each target is listed in Table 3. In addition, confirmation of LoD was performed for targets in Multi-Analyte (MA) samples prepared in NCM. Each MA sample consisted of 2 to 4 target analytes and 8 MA samples cover all targets probed by the NxTAG® RPP v2 assay. Confirmation of the single-analyte LoD in MA samples supported the use of MA samples in NxTAG® RPP v2 analytical studies.

| Target | Strain/Isolate | Supplier
/Part Number | LoD Concentration | | # Detected/

Tested |

|------------------------------------|-------------------------------------------------------|-----------------------------------------------------|----------------------------------------|--------------------------|-------------------------|
| Influenza A
(Matrix) | A/Brisbane/59/07 | ZeptoMetrix
0810244CF | $1.19E+02$ | 2.83E-02
TCID50/mL | 20/20 |
| | A/NY/02/09 | ZeptoMetrix
0810109CFN | $3.28E+02$ | 3.74E-02
TCID50/mL | 20/20 |
| | A/Wisconsin/67/05 | ZeptoMetrix
0810252CF | $1.68E+02$ | 6.45E-01
TCID50/mL | 20/20 |
| Influenza A H1
(Subtype) | A/Brisbane/59/07 | ZeptoMetrix
0810244CF | $1.60E+03$ | 3.82E-01
TCID50/mL | 20/20 |
| Influenza A H1pdm09
(Subtype) | A/NY/02/09 | ZeptoMetrix
0810109CFN | $9.84E+02$ | 1.12E-01
TCID50/mL | 19/20 |
| Influenza A H3
(Subtype) | A/Wisconsin/67/05 | ZeptoMetrix
0810252CF | $5.60E+01$ | 2.15E-01
TCID50/mL | 20/20 |
| Influenza B | B/Florida/02/06 | ZeptoMetrix
0810037CF | $6.33E+01$ | 9.67E-01
TCID50/mL | 19/20 |
| Respiratory Syncytial
Virus A | A2 | ATCC VR-1540 | $4.97E+03$ | 3.77E+01
PFU/mL | 19/20 |
| Respiratory Syncytial
Virus B | 18537 | ATCC VR-1580 | $7.21E+03$ | 3.20E-01
PFU/mL | 20/20 |
| Parainfluenza Virus 1 | N/A | ZeptoMetrix
0810014CF | $6.92E+02$ | 7.64E-01
TCID50/mL | 20/20 |
| Parainfluenza virus 2 | Greer | ATCC VR-92 | $3.45E+02$ | 7.32E-01
TCID50/mL | 20/20 |
| Parainfluenza virus 3 | C 243 | ATCC VR-93 | $1.01E+03$ | 1.10E+02
TCID50/mL | 20/20 |
| | | Supplier
/Part Number | LoD Concentration | | |
| Target | Strain/Isolate | | Copies/
mL | In Supplier
Unit | # Detected/

Tested |

| Parainfluenza virus 4 | Type 4A | ZeptoMetrix
0810060CF | 1.69E+04 | 8.58E-01
TCID50/mL | 20/20 |
| | Type 4B, CH 19503 | ATCC VR-1377 | 7.15E+03 | 5.99E+01
TCID50/mL | 20/20 |
| SARS-CoV-2 | USA-WA1/2020 | ATCC VR-1986HK | 5.00E+02 | 7.68E+00
TCID50/mL | 19/20 |
| Coronavirus 229E | N/A | ATCC VR-740 | 3.81E+02 | 1.22E-01
TCID50/mL | 19/20 |
| Coronavirus NL63 | N/A | ZeptoMetrix
0810228CF | 1.00E+02 | 6.45E-03
TCID50/mL | 20/20 |
| Coronavirus OC43 | Betacoronavirus 1 | ATCC VR-1558 | 4.55E+03 | 7.32E-02
TCID50/mL | 20/20 |
| Coronavirus HKU1 | Genotype B | Clinical Sample | 4.18E+03 | N/A | 19/20 |
| Human
Metapneumovirus | hMPV-16, Type A1,
IA10-2003 | ZeptoMetrix
0810161CF | 7.15E+01 | 5.76E-02
TCID50/mL | 20/20 |
| | hMPV-3, Type B1,
Peru2-2002 | ZeptoMetrix
0810156CF | 2.62E+02 | 1.78E-02
TCID50/mL | 20/20 |
| Rhinovirus/
Enterovirus | Rhinovirus
50-525-CV54
[V-192-001-021] | ATCC VR-1195 | 1.54E+03 | 6.87E+01
TCID50/mL | 20/20 |
| | Enterovirus
Species D, Type 68
2007 Isolate | ZeptoMetrix
0810237CF | 3.53E+03 | 2.30E+00
TCID50/mL | 20/20 |
| Adenovirus | Species B, Type 14
2006 isolate | ZeptoMetrix
0810108CF | 1.42E+03 | 1.44E-01
TCID50/mL | 19/20 |
| | Species C, Type 1 | ZeptoMetrix
0810050CF | 2.01E+04 | 9.28E+01
TCID50/mL | 20/20 |
| | Species E, Type 4 | ZeptoMetrix
0810070CF | 7.33E+03 | 1.91E-01
TCID50/mL | 19/20 |
| Chlamydia
pneumoniae | TW-183 | ATCC VR-2282 | 2.38E+02 | 3.74E+01
IFU/mL | 20/20 |
| Mycoplasma
pneumoniae | M129 | ZeptoMetrix 0801579 | 3.23E+03 | 5.56E+01
CCU/mL | 19/20 |
| Target | Strain | Supplier
/Part Number | Concentration
(IU/mL) | # Detected / #
tested | |
| SARS-CoV-2 | Heat inactivated
England/02/2020 isolate | NIBSC
20/146 | 7.70E+05 | 20/20 (100%) | |
| Organism | Strain | Supplier / Part
Number | Concentration
Tested
(Copies/mL) | # Detected
/# Tested | |
| Influenza A H1 | A/Brisbane/59/07* | ZeptoMetrix
0810244CF | 4.81E+03 | 3/3 | |
| | A/New Caledonia/20/99 | ZeptoMetrix
0810036CF | 4.81E+03 | 3/3 | |
| | A/Solomon Island/03/06 | ZeptoMetrix
0810036CFN | 4.81E+03 | 3/3 | |
| | A/Taiwan/42/06 | ZeptoMetrix
0810036CF
(New PN:
0810247CF) | 4.81E+03 | 3/3 | |
| | A/Denver/1/57 | ATCC VR-546 | 4.81E+03 | 3/3 (Matrix) | |
| | | | $5.77E+07^a$ | 0/3 (H1 Subtype) | |
| | A/NY/02/09* | ZeptoMetrix
0810109CFN | 5.11E+03 | 3/3 | |
| | A/SwineNY/01/2009
(New name: A/NY/01/09) | ZeptoMetrix
0810109CFN
(New PN:
0810248CF) | 5.11E+03 | 3/3 | |
| | A/SwineNY/03/2009
(New name: A/NY/03/09) | ZeptoMetrix
0810109CFN
(New PN:
0810249CF) | 5.11E+03 | 3/3 | |
| | A/Swine/Canada/6294/09 | ZeptoMetrix
0810109CFJ | 5.11E+03 | 3/3 | |
| | A/California/07/09 | ZeptoMetrix
0810165CF | 5.11E+03 | 3/3 | |
| | A/Mexico/4108/09 | ZeptoMetrix
0810166CF | 5.11E+03 | 3/3 | |
| Influenza A H1pdm09 | A/Michigan/45/15 | ZeptoMetrix
0810538CF | 5.11E+03 | 3/3 | |
| | A/Brisbane/02/18 | ZeptoMetrix
0810585CF | 5.11E+03 | 3/3 | |
| | A/Virginia/ATCC1/2009 | ATCC VR-1736 | 5.11E+03 | 3/3 | |
| | A/Netherlands/2629/2009 | BEI NR-19823 | 5.11E+03 | 3/3 | |
| | A/Houston/3H/2009 | BEI NR-20340 | 5.11E+03 | 3/3 | |
| | A/Brownsville/31H/2009 | BEI NR-20344 | 5.11E+03 | 3/3 | |
| | A/Dominican Republic/7293/2013 | IRR FR-1298 | 5.11E+03 | 3/3 | |
| | A/Massachusetts/15/2013 | IRR FR-1319 | 5.11E+03 | 3/3 | |
| | A/Swine/1976/31 | ATCC VR-99 | 4.81E+03 | 3/3 (Matrix) | |
| Organism | Strain | Supplier / Part
Number | Concentration
Tested
(Copies/mL) | # Detected
/# Tested | |
| Influenza A H3 | A/Swine/Iowa/15/30 | ATCC VR-333 | 1.83E+07 | 3/3 (H1pdm09
Subtype) | |
| | A/Swine/Iowa/15/30 | ATCC VR-333 | 4.81E+03 | 3/3 (Matrix) | |
| | A/Swine/Iowa/15/30 | ATCC VR-333 | 2.25E+07 | 3/3
(H1pdm09Subtype) | |
| | A/Wisconsin/67/05* | ZeptoMetrix
0810252CF | 1.68E+02 | 3/3 | |
| | A/Brisbane/10/07 | ZeptoMetrix
0810138CF | 5.04E+02 | 3/3 (Matrix) | |
| | A/Brisbane/10/07 | ZeptoMetrix
0810138CF | 1.68E+02 | 3/3 (H3 Subtype) | |
| | A/Texas/50/12 | ZeptoMetrix
0810238CF | 5.04E+02 | 3/3 | |
| | A/Perth/16/09 | ZeptoMetrix
0810138CF
(New PN:
0810251CF) | 1.68E+02 | 3/3 | |
| | A/Hong Kong/4801/14 | ZeptoMetrix
0810526CF | 4.54E+03 | 3/3 (Matrix) | |
| | A/Hong Kong/4801/14 | ZeptoMetrix
0810526CF | 1.51E+03 | 3/3 (H3 Subtype) | |
| | A/Singapore/INFIMH-16-0019/16 | ZeptoMetrix
0810574CF | 1.51E+03 | 3/3 | |
| | A/Kansas/14/17 | ZeptoMetrix
0810586CF | 5.04E+02 | 3/3 (Matrix) | |
| | A/Kansas/14/17 | ZeptoMetrix
0810586CF | 1.68E+02 | 3/3 (H3 Subtype) | |
| | A/Hong Kong/8/68 | ATCC VR-544 | 1.68E+02 | 3/3 (Matrix) | |
| | A/Hong Kong/8/68 | ATCC VR-544 | 4.08E+04 | 3/3 (H3 Subtype) | |
| | A/Alice | ATCC VR-776 | 1.68E+02 | 3/3 (Matrix) | |
| | A/Alice | ATCC VR-776 | 8.04E+03 | 3/3 (H3 Subtype) | |
| | A/Port Chalmers/1/73 | ATCC VR-810 | 1.51E+03 | 3/3 (Matrix) | |
| | | A/Port Chalmers/1/73 | ATCC VR-810 | 5.04E+02 | |
| | A/Sydney/5/1997 | BEI NR-12278 | 4.54E+03 | 3/3 (Matrix) | |
| | | A/Sydney/5/1997 | BEI NR-12278 | 1.68E+02 | |
| | A/Santiago/7981/2006 | IRR FR-336 | 1.68E+02 | 3/3 | |
| | A/Henan/Jinshui/147/2007 | IRR FR-365 | 1.68E+02 | 3/3 | |
| | A/Brisbane/9/2006 | IRR FR-366 | 1.68E+02 | 3/3 | |
| Organism | Strain | Supplier / Part
Number | Concentration
Tested
(Copies/mL) | # Detected
/# Tested | |
| | A/Nepal/921/2006 | IRR FR-367 | 1.68E+02 | 3/3 | |
| | A/Florida/2/2006 | IRR FR-368 | 5.04E+02 | 3/3 (Matrix) | |
| | A/Florida/2/2006 | IRR FR-368 | 1.68E+02 | 3/3 (H3 Subtype) | |
| | South Australia/55/14 | 0810512CF | 1.68E+02 | 3/3 | |
| | Stockholm/6/14 | 0810513CF | 5.04E+02 | 3/3 (Matrix) | |
| | Stockholm/6/14 | 0810513CF | 1.68E+02 | 3/3 | |
| | Norway/466/14 | 0810514CF | 1.68E+02 | 3/3 | |
| | Hong Kong/2671/19 | 0810609CF | 5.04E+02 | 3/3 | |
| | A/California/2/2014 | VR-1938 | 1.68E+02 | 3/3 | |
| | A/Switzerland/9715293/2013 | VR-183 | 1.68E+02 | 3/3 | |
| | Clinical Sample | 500-NEG-161 | 1.68E+02 | 3/3 | |
| | Clinical Sample | 500-NEG-199 | 5.04E+02 | 3/3 | |
| Influenza A H5b | A/Anhui/01/2005 (H5N1)-PR8-
IBCDC-RG6 | IRR FR-735 | 5.04E+02 | 3/3 (Matrix only) | |
| | A/Egypt/N03072/2010 (H5N1)-
PR8-IDCDC-RG29 | IRR FR-1065 | 5.04E+02 | 3/3 (Matrix only) | |
| | A/pheasant/New Jersey
/1355/1998(H5N2)-PR8-IBCDC-4 | IRR FR-771 | 5.04E+02 | 3/3 (Matrix only) | |
| | A/Hubei/1/2010 (H5N1)-PR8-
IDCDC-RG30 | IRR FR-1066 | 5.04E+02 | 3/3 (Matrix only) | |
| Influenza A H7b | A/turkey/Virginia/4529/2002
(H7N2) x PR8-IBCDC-5 | IRR FR-772 | 5.04E+02 | 3/3 (Matrix only) | |
| Influenza A H7b | A/mallard/Netherlands/12/2000
(H7N7)/PR8-IBCDC-1 | IRR FR-773 | 5.04E+02 | 3/3 (Matrix only) | |
| Influenza A H9b | A/Hong Kong/33982/2009 (H9N2)-
PR8-IDCDC-RG26 | IRR FR-1068 | 5.04E+02 | 3/3 (Matrix only) | |
| Influenza Bc
(Yamagata Lineage) | B/Florida/02/06* | ZeptoMetrix
0810037CF | 1.90E+02 | 3/3 | |
| | B/Massachusetts/2/12 | ZeptoMetrix
0810239CF | 1.90E+02 | 3/3 | |
| | B/Wisconsin/1/10 | ZeptoMetrix
0810241CF | 1.90E+02 | 3/3 | |
| | B/Florida/04/06 | ZeptoMetrix
0810037CF
(New PN:
0810255CF) | 1.90E+02 | 3/3 | |
| Organism | Strain | Supplier / Part
Number | Concentration
Tested
(Copies/mL) | # Detected
/# Tested | |
| | B/Florida/07/04 | ZeptoMetrix
0810037CF (New
PN: 0810256CF) | 1.90E+02 | 3/3 | |
| | B/Panama/45/90 | ZeptoMetrix
0810037CF
(New PN:
0810259CF) | 1.90E+02 | 3/3 | |
| | B/Phuket/3073/13 | ZeptoMetrix
0810515CF | 1.90E+02 | 3/3 | |
| | B/Bangladesh/5972/2007 | IRR FR-450 | 1.90E+02 | 3/3 | |
| | B/Hubei-Wujiagang/158/2009 | IRR FR-469 | 1.90E+02 | 3/3 | |
| | B/Brisbane/33/08 | ZeptoMetrix
0810037CF
(New PN:
0810253CF) | 1.90E+02 | 3/3 | |
| | B/Brisbane/60/08 | ZeptoMetrix
0810037CF
(New PN:
0810254CF) | 1.90E+02 | 3/3 | |
| Influenza Bᶜ
(Victoria Lineage) | B/Malaysia/2506/04 | ZeptoMetrix
0810258CF | 1.90E+02 | 3/3 | |
| | B/Colorado/06/17 | ZeptoMetrix
0810573CF | 5.69E+02 | 3/3 | |
| | B/Hong Kong/259/2010 | IRR FR-663 | 1.90E+02 | 3/3 | |
| | B/New Jersey/1/2012 | IRR FR-1270 | 1.90E+02 | 3/3 | |
| | B/Texas/02/2013 | IRR FR-1302 | 1.90E+02 | 3/3 | |
| RSVA | A2* | ATCC VR-1540 | 1.49E+04 | 3/3 | |
| | 2006 Isolate | ZeptoMetrix
0810040ACF | 1.49E+04 | 3/3 | |
| | Long | ATCC VR-26 | 1.49E+04 | 3/3 | |
| | 18537* | ATCC VR-1580 | 2.16E+04 | 3/3 | |
| RSVB | CH93(18)-18 | ZeptoMetrix
0810040CF | 2.16E+04 | 3/3 | |
| | 9320 | ATCC VR-955 | 2.16E+04 | 3/3 | |
| | B WV/14617/85 | ATCC VR-1400 | 2.16E+04 | 3/3 | |
| | B1 | BEI NR-4052 | 2.16E+04 | 3/3 | |
| PIV1 | Type 1* | ZeptoMetrix
0810014CF | 2.08E+03 | 3/3 | |
| Organism | Strain | Supplier / Part
Number | Concentration
Tested
(Copies/mL) | # Detected
/# Tested | |
| | C35 | ATCC VR-94 | 2.08E+03 | 3/3 | |
| PIV2 | Greer* | ATCC VR-92 | 1.03E+03 | 3/3 | |
| | Type 2 | ZeptoMetrix
0810015CF | 1.03E+03 | 3/3 | |
| | | | | | |
| | C 243* | ATCC VR-93 | 3.04E+03 | 3/3 | |
| PIV3 | Type 3 | ZeptoMetrix
0810016CF | 3.04E+03 | 3/3 | |
| | ATCC-2011-5 | ATCC VR-1782 | 3.04E+03 | 3/3 | |
| | NIH 47885 | BEI NR-3233 | 3.04E+03 | 3/3 | |
| PIV4 | Type 4A* | ZeptoMetrix
0810060CF | 5.08E+04 | 3/3 | |
| | M-25; Type 4A | ATCC VR-1378 | 5.08E+04 | 3/3 | |
| | CH 19503; Type 4B* | ATCC VR-1377 | 2.14E+04 | 3/3 | |
| | Type 4B | ZeptoMetrix
0810060BCF | 2.14E+04 | 3/3 | |
| SARS-CoV-2 | 2019-nCoV/USA-WA1/2020* | ATCC VR-1986HK | 1.50E+03 | 3/3 | |
| | HongKong/VM2000106/2020 | ZeptoMetrix
0810590CFHI | 1.50E+03 | 3/3 | |
| | USA-WA1/2020 | ZeptoMetrix
0810587CFHI | 1.50E+03 | 3/3 | |
| | BetaCoV/Germany/BavPat1/2020p
.1d | EVAg 026N-03889 | 2.73E+03 | 3/3 | |
| | 2019-nCoV/Italy-INMI1d | EVAg 008N-03894 | 2.73E+03 | 3/3 | |
| | England/02/2020d | BEI NR-52499 | 2.73E+03 | 3/3 | |
| | Singapore/2/2020d | BEI NR-52501 | 2.73E+03 | 3/3 | |
| | USA-IL1/2020d | BEI NR-52503 | 2.73E+03 | 3/3 | |
| | USA-CA1/2020d | BEI NR-52504 | 2.73E+03 | 3/3 | |
| | USA-AZ1/2020d | BEI NR-52505 | 2.73E+03 | 3/3 | |
| | USA-WI1/2020d | BEI NR-52506 | 2.73E+03 | 3/3 | |
| | USA-CA3/2020d | BEI NR-52507 | 2.73E+03 | 3/3 | |
| | USA-CA4/2020d | BEI NR-52508 | 2.73E+03 | 3/3 | |
| Organism | Strain | Supplier / Part
Number | Concentration
Tested
(Copies/mL) | # Detected
/# Tested | |
| | USA-CA2/2020d | BEI NR-52509 | 2.73E+03o | 3/3 | |
| | Chile/Santiago_op4d1/2020d | BEI NR-52510 | 2.73E+03o | 3/3 | |
| | New York-PV08410/2020d | BEI NR-53518 | 2.73E+03o | 3/3 | |
| | USA/CA_CDC_5574/2020, Heat
Inactivated | BEI NR-55245 | 1.50E+03o | 3/3 | |
| | Alpha (B1.1.7)/UK Variant | Clinical Specimen | 1.50E+03 | 3/3 | |
| | Epsilon (B1.429)/California Variant | Clinical Specimen | 1.50E+03 | 3/3 | |
| | Epsilon (B1.429)/California Variant | Clinical Specimen | 1.50E+03 | 3/3 | |
| | Delta (B.1.617.2) | Clinical Specimen | 1.50E+03 | 3/3 | |
| | Delta (B.1.617.2) | Clinical Specimen | 1.50E+03 | 3/3 | |
| | Delta (B.1.617.2) | Clinical Specimen | 1.50E+03 | 3/3 | |
| | Delta (B.1.617.2) | Clinical Specimen | 1.50E+03 | 3/3 | |
| | Delta (B.1.617.2) | Clinical Specimen | 1.50E+03 | 3/3 | |
| | Omicron (B.1.1.529 and BA
lineages) | Clinical Specimen | 1.50E+03 | 3/3 | |
| | Omicron (B.1.1.529 and BA
lineages) | Clinical Specimen | 1.50E+03 | 3/3 | |
| | Omicron (B.1.1.529 and BA
lineages) | Clinical Specimen | 1.50E+03 | 3/3 | |
| | Omicron (B.1.1.529 and BA
lineages) | Clinical Specimen | 1.50E+03 | 3/3 | |
| | Omicron (B.1.1.529 and BA
lineages) | Clinical Specimen | 1.50E+03 | 3/3 | |
| Coronavirus 229E | 229E* | ATCC VR-740 | 1.14E+03 | 3/3 | |
| | 229E | ZeptoMetrix
0810229CF | 1.14E+03 | 3/3 | |
| Coronavirus NL63 | NL63* | ZeptoMetrix
0810228CF | 3.00E+02 | 3/3 | |
| | NL63 | BEI NR-470 | 3.00E+02 | 3/3 | |
| | Betacoronavirus 1* | ATCC VR-1558 | 1.36E+04 | 3/3 | |
| Coronavirus OC43 | OC43 | ZeptoMetrix
0810024CF | 1.36E+04 | 3/3 | |

Table 3: NxTAG® RPP v2 Limit of Detection

23

Image /page/23/Picture/0 description: The image shows the logo for Luminex. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in Luminex. The logo is simple and modern.

Analytical Sensitivity for the First WHO International Standard for SARS-CoV-2 e.

The Analytical Sensitivity of the NxTAG® RPP v2 assay for the WHO standard for SARS-CoV-2 was evaluated.

24

The preliminary LoD was determined by preparing a 10-fold dilution series in negative clinical matrix (NCM, pooled negative nasopharyngeal swabs in Universal Transport Medium) and testing each dilution level in triplicate. The LoD was confirmed by testing 20 replicates of sample prepared at preliminary LoD, as well as 20 replicates of samples prepared 3-fold above and below this preliminary LoD.

The Analytical Sensitivity was defined as the lowest concentration at which ≥ 95% of the replicates tested generated a positive call. The summary of the results is shown in Table 4.

Table 4. Analytical Sensitivity of NxTAG® RPP v2 for the First WHO International Standard for SARS-CoV-2.

Analytical Reactivity (Inclusivity) f.

Analytical Reactivity (Inclusivity) of the NxTAG® RPP v2 assay was assessed by testing a total of 193 pathogen strains/isolates (168 reactivity strains and 25 LoD strains). The strains tested represent the diversity of the targets probed by NxTAG® RPP v2. Each strain was prepared in negative simulated matrix (NSM) and tested in triplicate on the NxTAG RPP v2 assay. A droplet digital PCR (ddPCR) assay was performed to quantitate clinical specimens and those culture stocks where titer information in copy number was not available. For influenza A results, the concentration at which both the influenza A matrix and the subtype of that strain were detected by NxTAG® RPP v2 is shown. When the influenza A matrix and the subtype were detected at different concentrations, the concentration for each target is listed separately. The NxTAG® RPP v2 assay is capable of detecting the Influenza A matrix for all strains, including Influenza A H5, H7, and H9. Specimens containing Influenza A H5, H7, and H9 strains are expected to be reported as "Influenza A" only. The applicable subtype of all strains of influenza A H1, A H1pdm09 and A H3 with the exception of Influenza A A/Denver/1/57 H1 were detected successfully. A summary of the results, including the strain identity and the concentration at which they were detected, are shown in Table 5.

Table 5. Results of NxTAG® RPP v2 Analytical Reactivity

25

Image /page/25/Picture/0 description: The image shows the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in "Luminex". A registration mark is located to the bottom right of the word.

Confidential & Restricted

510(k) Summary

26

Image /page/26/Picture/0 description: The image shows the logo for Luminex. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray circle above the "i" in Luminex. The logo is simple and modern.

27

Image /page/27/Picture/0 description: The image shows the logo for Luminex. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray circle above the "i" in Luminex. The logo is simple and modern.

28

Image /page/28/Picture/0 description: The image shows the word "Luminex" in a bold, sans-serif font. There is a gray circle above the "i" in "Luminex". A small registration mark is located to the right of the "x".

Confidential & Restricted

510(k) Summary

29

Image /page/29/Picture/0 description: The image shows the word "Luminex" in a bold, sans-serif font. There is a gray circle above the "i" in "Luminex". A small registration mark is located to the right of the "x".

30

31

| Organism | Strain | Supplier / Part
Number | Concentration
Tested
(Copies/mL) | # Detected
/# Tested | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|---------------------------------|-------------------------------------------------------------|---------------------------|----------------------------------------|-------------------------|--|-----------------------------|--------------------------|----------|-----|--|--------------------|-------------------|----------|-----|--------------------------|------------------------------|--------------------------|----------|-----|-----------------------------|--------------------------|----------|-----|-----------------------------|--------------------------|----------|-----|-----------------------------|--------------------------|----------|-----|--|-----------------------------|--------------------------|----------|-----|--|-------------------------------------------------------------|--------------|----------|-----|--------------------|---------------------------|----------|-----|-------------------------------|-------------|----------|-----|-------------|-----------------------------------|--------------|----------|-----|--------------------|--------------------------|----------|-----|----------------------------------|--------------|----------|-----|--------------------------------|-------------|----------|-----|-----------------------------------------|--------------|----------|-----|---------------------------------|--------------|----------|-----|
| Coronavirus HKU1 | HKU1, Genotype B* | Clinical Specimen | 1.25E+04 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | HKU1, Genotype B | Clinical Specimen | 1.25E+04 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | HKU1, Genotype A | Clinical Specimen | 1.25E+04 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | HKU1, Genotype A | Clinical Specimen | 1.25E+04 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Type A1, IA10-2003, hMPV-16* | ZeptoMetrix
0810161CF | 2.15E+02 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Type A1, IA3-2002, hMPV-9 | ZeptoMetrix
0810160CF | 2.15E+02 | 3/3 | | Type A2, IA27-2004, hMPV-27 | ZeptoMetrix
0810164CF | 2.15E+02 | 3/3 | | Type A2, DHI 26583 | Clinical Specimen | 2.15E+02 | 3/3 | Human
Metapneumovirus | Type B1, Peru2-2002, hMPV-3* | ZeptoMetrix
0810156CF | 7.85E+02 | 3/3 | Type B1, Peru3-2003, hMPV-5 | ZeptoMetrix
0810158CF | 7.85E+02 | 3/3 | Type B2, Peru1-2002, hMPV-4 | ZeptoMetrix
0810157CF | 7.85E+02 | 3/3 | Type B2, Peru6-2003, hMPV-8 | ZeptoMetrix
0810159CF | 7.85E+02 | 3/3 | | Type B2, IA18-2003, hMPV-18 | ZeptoMetrix
0810162CF | 7.85E+02 | 3/3 | | Species A, Type 85, strain 50-525-
CV54 [V-192-001-021]* | ATCC VR-1195 | 4.61E+03 | 3/3 | Species A, Type 1A | ZeptoMetrix
0810012CFN | 4.61E+03 | 3/3 | Species A, Type 2, strain HGP | ATCC VR-482 | 4.61E+03 | 3/3 | Rhinovirusf | Species A, Type 7, strain 68-CV11 | ATCC VR-1601 | 4.61E+03 | 3/3 | Species A, Type 16 | ZeptoMetrix
0810285CF | 4.61E+03 | 3/3 | Species A, Type 34, strain 137-3 | ATCC VR-1365 | 4.61E+03 | 3/3 | Species A, Type 39, strain 209 | ATCC VR-340 | 4.61E+03 | 3/3 | Species A, Type 54, strain FO1-
3774 | ATCC VR-1661 | 4.61E+03 | 3/3 | Species A, Type 57, strain Ch47 | ATCC VR-1600 | 4.61E+03 | 3/3 |
| | Type A1, IA3-2002, hMPV-9 | ZeptoMetrix
0810160CF | 2.15E+02 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Type A2, IA27-2004, hMPV-27 | ZeptoMetrix
0810164CF | 2.15E+02 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Type A2, DHI 26583 | Clinical Specimen | 2.15E+02 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Human
Metapneumovirus | Type B1, Peru2-2002, hMPV-3* | ZeptoMetrix
0810156CF | 7.85E+02 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Type B1, Peru3-2003, hMPV-5 | ZeptoMetrix
0810158CF | 7.85E+02 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Type B2, Peru1-2002, hMPV-4 | ZeptoMetrix
0810157CF | 7.85E+02 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Type B2, Peru6-2003, hMPV-8 | ZeptoMetrix
0810159CF | 7.85E+02 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Type B2, IA18-2003, hMPV-18 | ZeptoMetrix
0810162CF | 7.85E+02 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Species A, Type 85, strain 50-525-
CV54 [V-192-001-021]* | ATCC VR-1195 | 4.61E+03 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Species A, Type 1A | ZeptoMetrix
0810012CFN | 4.61E+03 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Species A, Type 2, strain HGP | ATCC VR-482 | 4.61E+03 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Rhinovirusf | Species A, Type 7, strain 68-CV11 | ATCC VR-1601 | 4.61E+03 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Species A, Type 16 | ZeptoMetrix
0810285CF | 4.61E+03 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Species A, Type 34, strain 137-3 | ATCC VR-1365 | 4.61E+03 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Species A, Type 39, strain 209 | ATCC VR-340 | 4.61E+03 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | Species A, Type 54, strain FO1-
3774 | ATCC VR-1661 | 4.61E+03 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Species A, Type 57, strain Ch47 | ATCC VR-1600 | 4.61E+03 | 3/3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |

32

| Organism | Strain | Supplier / Part
Number | Concentration
Tested
(Copies/mL) | # Detected
/# Tested |
|----------------------|--------------------------------------------------------------------------|---------------------------------------|----------------------------------------|-------------------------|
| | Species A, Type 77, strain 130-63
[V-185-001-021] | ATCC VR-1187 | 4.61E+03 | 3/3 |
| | Species B, Type 3, strain FEB | ATCC VR-483 | 4.61E+03 | 3/3 |
| | Species B, Type 14, strain 1059 | ATCC VR-284 | 4.61E+03 | 3/3 |
| | Species B, Type 17, strain 33342 | ATCC VR-1663 | 4.61E+03 | 3/3 |
| | Species B, Type 27, strain 5870
[5870-CV28] (NIAID V-144-001-
021) | ATCC VR-1137 | 4.61E+03 | 3/3 |
| | Species B, Type 42, strain 56822 | ATCC VR-338 | 4.61E+03 | 3/3 |
| | Species B, Type 83, strain Baylor 7
[V-190-001-021] | ATCC VR-1193 | 4.61E+03 | 3/3 |
| | Type C | Clinical Specimen | 4.61E+03 | 3/3 |
| | Type C | Clinical Specimen | 4.61E+03 | 3/3 |
| | Type C | Clinical Specimen | 4.61E+03 | 3/3 |
| | Type C | Clinical Specimen | 4.61E+03 | 3/3 |
| | Type C | Clinical Specimen | 4.61E+03 | 3/3 |
| | Species D, Type 68, 2007 isolate* | ZeptoMetrix
0810237CF | 1.06E+04 | 3/3 |
| | Species A, Human Enterovirus 71,
strain H | ATCC VR-1432 | 1.06E+04 | 3/3 |
| | Species A, Human Coxsackie A10,
strain M.K. (Kowalik) | ATCC VR-168 | 1.06E+04 | 3/3 |
| Enterovirus' | Species B, Human Coxsackievirus
B1, strain Conn-5 | ATCC VR-28 | 1.06E+04 | 3/3 |
| | Species B, Human Coxsackievirus
B4, strain J.V.B. (Benschoten) | ATCC VR-184 | 1.06E+04 | 3/3 |
| | Species B, Human Echovirus 11,
strain Gregory | ATCC VR-41 | 2.86E+05 | 3/3 |
| | Species B, Human Echovirus 13,
strain Del Carmen | ATCC VR-1054
(New PN: VR-43) | 1.06E+04 | 3/3 |
| | Species B, Enterovirus Type 69,
strain Toluca-1 [V-068-001-021] | ATCC VR-1077 | 1.06E+04 | 3/3 |
| | Species C, Human coxsackievirus
A21, strain Kuykendall | ATCC VR-850 | 1.06E+04 | 3/3 |
| Organism | Strain | Supplier / Part
Number | Concentration
Tested
(Copies/mL) | # Detected
/# Tested |
| | Species C, Human coxsackievirus
A24, strain DN-19 | ATCC VR-1662 | 1.06E+04 | 3/3 |
| | Species D, Type 68, 2014 Isolate | ZeptoMetrix
0810300CF | 1.06E+04 | 3/3 |
| | Species D, Type 68, strain
US/MO/14-18947 | ATCC VR-1823 | 1.06E+04 | 3/3 |
| | Species D, Type 68, strain US/IL/14-
18952 | ATCC VR-1824 | 1.06E+04 | 3/3 |
| | Species D, Type 68, strain
US/KY/14-18953 | ATCC VR-1825 | 1.06E+04 | 3/3 |
| | Species D, Type 68, strain Fermon | ATCC VR-1076
(New PN: VR-
1826) | 1.06E+04 | 3/3 |
| | Species D, Type 70, strain J670/71 | ATCC VR-836 | 1.06E+04 | 3/3 |
| | Species B, Type 14, 2006 isolate* | ZeptoMetrix
0810108CF | 7.38E+03 | 3/3 |
| | Species B, Type 3 | ZeptoMetrix
0810062CF | 7.38E+03 | 3/3 |
| | Species B, Type 7, strain Gomen | ATCC VR-7 | 7.38E+03 | 3/3 |
| | Species B, Type 7A | ZeptoMetrix
0810021CF | 7.38E+03 | 3/3 |
| | Species B, Type 21, AV-1645 [128] | ATCC VR-1098
(New PN: VR-256) | 7.38E+03 | 3/3 |
| Adenovirus | Species C, Type 1* | ZeptoMetrix
0810050CF | 6.02E+04 | 3/3 |
| | Species C, Type 1, strain Adenoid
71 | ATCC VR-1 | 6.02E+04 | 3/3 |
| | Species C, Type 2 | ZeptoMetrix
0810110CF | 6.02E+04 | 3/3 |
| | Species C, Type 5 | ZeptoMetrix
0810020CF | 6.02E+04 | 3/3 |
| | Species C, Type 6 | ZeptoMetrix
0810111CF | 6.02E+04 | 3/3 |
| | Species E, Type 4* | ZeptoMetrix
0810070CF | 2.20E+04 | 3/3 |
| C. pneumoniae | TW-183* | ATCC VR-2282 | 7.13E+02 | 3/3 |
| | TWAR (CDC/CWL-029) | ATCC VR-1310 | 7.13E+02 | 3/3 |
| Organism | Strain | Supplier / Part
Number | Concentration
Tested
(Copies/mL) | # Detected
/# Tested |
| | TWAR 2023 | ATCC VR-1356 | 7.13E+02 | 3/3 |
| | AR-39 | ATCC 53592 | 7.13E+02 | 3/3 |
| M. pneumoniae | M129* | ZeptoMetrix
0801579 | 1.29E+04 | 3/3 |
| | [M52] | ATCC 15293 | 1.29E+04 | 3/3 |
| | FH strain of Eaton Agent [NCTC 10119] | ATCC 15531-TTR | 1.29E+04 | 3/3 |
| | Mutant 22 | ATCC 39505 | 1.29E+04 | 3/3 |

33

34

  • Indicates a LoD strain.

ª Highest possible concentration.

ხ NxTAG RPP v2 does not differentiate Influenza A H5, H7 or H9, all of which are reported as Influenza A

^ NxTAG RPP v2 does not differentiate the Yamagata and Victoria lineages, both of which are reported as influenza B

d Samples were obtained as RNA. The RNA was diluted in extracted negative simulated matrix to a concentration that represented 1.50E+03 copies/mL in a raw sample.

e Concentration units for these strains are Genome equivalents/mL.

1 Reported by NxTAG RPP v2 as Rhinovirus/Enterovirus

Analytical Reactivity In Silico Analysis

Based on in silico inclusivity analysis, it is predicted that the SARS-CoV-2 sequences available from GISAID EpiCoV database as of November 30, 2023, including sequences from all defined variants of concern or interest, are 100% detectable by NxTAG® Respiratory Pathogen Panel v2 (NxTAG RPP v2) assay.

Influenza A and B inclusivity was assessed with sequences available from the GISAID EpiFlu database between January 1, 2017 and May 5, 2023, as well as between January 1, 2000 and December 31, 2008. The assay oligos for Influenza A, Influenza A H1 (including H1pdm09), Influenza A H3, and Influenza B are predicted to have ~99% inclusivity against the analyzed sequences.

For all targets other than SARS-CoV-2 and the influenza viruses, in silico inclusivity analysis was performed with sequences available from the GenBank" Nucleotide (nt) database as of April 8, 2023. Based on this analysis, ≥96% of sequences of each analyte were predicted to be detected by NxTAG® RPP v2, except for Parainfluenza Virus 2 (~92%) and untyped strains of Parainfluenza Virus 4 (~94%), which exhibited lower homology.

g. Analytical Specificity

35

i) Cross-Reactivity

Analytical Specificity (Exclusivity) of the NxTAG® Respiratory Pathogen Panel v2 (NxTAG® RPP v2) assay was assessed with pathogens that cause respiratory infections or those that may be found in respiratory specimens. Sixty-three (63) organisms (82 strains total) were tested, including 41 pathogens that are not detected by NxTAG® RPP v2, and pooled nasal wash (referred to as "Off-panel organisms" – Table 6) and 22 that are detected by the assay (referred to as "On-Panel organisms" – Table 7). Each strain was prepared in negative simulated matrix (NSM) to reach the high positive concentration and tested in triplicate on the NxTAG® RPP v2 assay. None of the off-panel or on-panel organisms tested showed cross-reactivity, with the exception of one strain: Enterovirus (Species D, Type 68, US/IL/14-18952). This strain generated a false positive call for Influenza A H3 when it was tested at ≥ 1.00E+03 TCIDso/mL, although the influenza A matrix gene target was negative. No false positive call was generated when the strain was tested at 1.00E+02 TCID50/mL and five other isolates of Enterovirus D showed no evidence of cross-reaction.

| Off-Panel Organisms | Concentration Tested | Cross-Reactivity
Detected | |
|---------------------------------|----------------------|------------------------------|------|
| Aspergillus flavus | 1.00E+06 | CFU/mL | None |
| Aspergillus fumigatus | 1.00E+06 | CFU/mL | None |
| Bordetella parapertussis | 1.00E+06 | CFU/mL | None |
| Bordetella pertussis | 1.00E+06 | CFU/mL | None |
| Candida albicans | 1.00E+06 | CFU/mL | None |
| Chlamydia trachomatis | 1.00E+06 | IFU/mL | None |
| Corynebacterium diphtheriae | 1.00E+06 | CFU/mL | None |
| Corynebacterium striatum | 1.00E+06 | CFU/mL | None |
| Cytomegalovirus | 1.00E+05 | TCID50/mL | None |
| Epstein Barr Virus | 1.00E+07 | Copies/mL | None |
| Escherichia coli | 1.00E+06 | CFU/mL | None |
| Fusobacterium necrophorum | 1.00E+06 | CFU/mL | None |
| Haemophilus influenzae | 1.00E+06 | CFU/mL | None |
| Herpes Simplex virus Type 1 | 1.00E+05 | TCID50/mL | None |
| Human Bocavirus | 1.00E+07 | Copies/mL | None |
| Klebsiella pneumoniae | 1.00E+06 | CFU/mL | None |
| Lactobacillus acidophilus | 1.00E+06 | CFU/mL | None |
| Lactobacillus plantarum | 1.00E+06 | CFU/mL | None |
| Legionella (Tatlockia) micdadei | 1.00E+06 | CFU/mL | None |

Table 6: NxTAG® RPP v2 Analytical Specificity (Off-Panel Organisms)

36

Image /page/36/Picture/0 description: The image shows the Luminex logo. The logo consists of the word "Luminex" in a bold, sans-serif font, with a gray circle above the "i". A registered trademark symbol is present to the right of the "x".

| Off-Panel Organisms | Concentration Tested | Cross-Reactivity
Detected |
|----------------------------|-----------------------------------|------------------------------|
| Legionella pneumophila | 1.00E+06 CFU/mL | None |
| Measles Virus | 1.00E+05 TCID50/mL | None |
| MERS-coronavirus | 1.00E+05 TCID50/mL | None |
| Moraxella catarrhalis | 1.00E+06 CFU/mL | None |
| Mumps Virus | 1.00E+05 TCID50/mL | None |
| Mycobacterium tuberculosis | 1.00E+06 CFU/mL | None |
| Mycoplasma genitalium | 1.00E+051 CCU/mL
(Approximate) | None |
| Mycoplasma hominis | 1.00E+06 CCU/mL | None |
| Neisseria elongata | 1.00E+06 CFU/mL | None |
| Neisseria gonorrhoeae | 1.00E+06 CFU/mL | None |
| Neisseria meningitidis | 1.00E+06 CFU/mL | None |
| Pneumocystis carinii | 1.00E+06 nuclei/mL | None |
| Pseudomonas aeruginosa | 1.00E+06 CFU/mL | None |
| Serratia marcescens | 1.00E+06 CFU/mL | None |
| Staphylococcus aureus | 1.00E+06 CFU/mL | None |
| Staphylococcus epidermidis | 1.00E+06 CFU/mL | None |
| Streptococcus agalactiae | 1.00E+06 CFU/mL | None |
| Streptococcus pneumoniae | 1.00E+06 CFU/mL | None |
| Streptococcus pyogenes | 1.00E+06 CFU/mL | None |
| Streptococcus salivarius | 1.00E+06 CFU/mL | None |
| SARS-coronavirus | 3.01E+051 Copies/mL | None |
| Varicella Zoster Virus | 1.00E+05 TCID50/mL | None |
| N/A (Pooled Nasal Wash) | N/A N/A | None |

¹Highest concentration based on the available stock.

Table 7: NxTAG® RPP v2 Analytical Specificity (On-Panel Organisms)
----------------------------------------------------------------------------

| On-Panel Organisms (strain/subtype) | Concentration Tested | Cross-
Reactivity
Detected | |
|--------------------------------------------------------|----------------------|----------------------------------|-------------------|
| Influenza A H1N1 (Brisbane/59/07) | 1.00E+05 TCID50/mL | None | |
| Influenza A 2009 H1N1 (A/NY/02/09) | 1.00E+05 TCID50/mL | None | |
| Influenza A H3N2 (Wisconsin/67/05) | 1.00E+05 TCID50/mL | None | |
| Influenza B (Florida/02/06) (LN: 325286) | 1.00E+05 TCID50/mL | None | |
| Influenza B (Florida/02/06) (LN: 325345) | 1.00E+05 TCID50/mL | None | |
| Influenza B (Florida/02/06) (LN: 307551) | 1.00E+05 TCID50/mL | None | |
| Influenza B (B/Brisbane/33/2008) | 1.00E+05 TCID50/mL | None | |
| Influenza B (B/Massachusetts/2/12) | 1.00E+05 TCID50/mL | None | |
| Influenza B (B/Wisconsin/1/2010) | 1.00E+05 TCID50/mL | None | |
| On-Panel Organisms (strain/subtype) | Concentration Tested | Cross-
Reactivity
Detected | |
| Influenza B (B/Brigit (B/Russia/69)) | 1.00E+05 | CEID50/mL | None |
| Influenza B (B/Hong Kong/5/72) | 1.00E+05 | CEID50/mL | None |
| Influenza B (B/Russia/69) | 1.00E+05 | CEID50/mL | None |
| Influenza B (B/GreLakes/1739/1954) | 1.00E+05 | CEID50/mL | None |
| Influenza B (B/Bangladesh/5972/2007) | 1.00E+05 | TCID50/mL | None |
| Influenza B (B/Hong Kong/259/2010) | 1.00E+05 | CEID50/mL | None |
| Influenza B (B/Texas/02/2013) | 1.00E+05 | TCID50/mL | None |
| Influenza B (B/Hubei-Wujiagang/158/2009) | 1.00E+05 | CEID50/mL | None |
| Influenza B (B/New Jersey/1/2012) | 1.00E+05 | TCID50/mL | None |
| Influenza B (B/Brisbane/3/2007) | 1.00E+05 | CEID50/mL | None |
| Human Respiratory Syncytial Virus A (A2) | 1.00E+05 | PFU/mL | None |
| Human Respiratory Syncytial Virus B (18537) | 7.00E+04a | PFU/mL | None |
| SARS-CoV-2 (USA-WA-1/2020) | 1.00E+07 | Copies/mL | None |
| Coronavirus 229E | 1.00E+05 | TCID50/mL | None |
| Coronavirus OC43 | 1.00E+05 | TCID50/mL | None |
| Coronavirus NL63 | 1.00E+05 | TCID50/mL | None |
| Coronavirus HKU1 | 1.00E+06a | Copies/mL | None |
| Human Metapneumovirus (hMPV-16, Type A1,
IA10-2003) | 1.00E+05 | TCID50/mL | None |
| Human Metapneumovirus (hMPV-2, Type B1,
Peru2-2002) | 3.89E+04a | TCID50/mL | None |
| Rhinovirus (Type 85, 50-525-CV54 [V-192-001-
021]) | 1.00E+05 | TCID50/mL | None |
| Enterovirus (Species D, Type 68, 2007 Isolate) | 1.00E+05 | TCID50/mL | None |
| Enterovirus (Species D, Type 68, US/MO/14-
18947) | 1.00E+05 | TCID50/mL | None |
| Enterovirus (Species D, Type 68, US/IL/14-
18952) | 1.00E+03 | TCID50/mL | Influenza A
H3 |
| Enterovirus (Species D, Type 68, US/KY/14-
18953) | 1.00E+05 | TCID50/mL | None |
| Enterovirus (Species D, Type 68, Fermon) | 1.00E+05 | TCID50/mL | None |
| Enterovirus (68, 2014 Isolate 1) | 1.00E+05 | TCID50/mL | None |
| Adenovirus (Species B; Type 14, 2006 isolate) | 1.00E+05 | TCID50/mL | None |
| Parainfluenza virus 1 (Type 1) | 1.00E+05 | TCID50/mL | None |
| Parainfluenza virus 2 (Greer) | 1.00E+05 | TCID50/mL | None |
| Parainfluenza virus 3 (C243) | 1.00E+05 | TCID50/mL | None |
| Parainfluenza virus 4 (Subtype A) | 1.00E+05 | TCID50/mL | None |
| Parainfluenza virus 4 (Subtype B; CH 19503) | 1.00E+05 | TCID50/mL | None |
| On-Panel Organisms (strain/subtype) | Concentration Tested | Cross-
Reactivity
Detected | |
| Chlamydia pneumoniae (TW-183) | 1.00E+06 IFU/mL | None | |
| Mycoplasma pneumoniae (M129) | 1.00E+06 CCU/mL | None | |

510(k) Summary

37

Image /page/37/Picture/0 description: The image shows the logo for Luminex. The logo is in black and white and features the word "Luminex" in a bold, sans-serif font. There is a gray circle above the "i" in Luminex. The logo also includes the registered trademark symbol.

Confidential & Restricted

510(k) Summary

38

Image /page/38/Picture/0 description: The image shows the logo for Luminex. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in Luminex. The logo is simple and modern.

ªHighest concentration possible based on the available stock.

Analytical Cross-Reactivity In Silico Analysis

For in silico exclusivity assessment of the assay oligos against on-panel and off-panel organisms listed in Table 8 below, based on analysis of sequences available in the GenBank Nucleotide (nt) database as of April 9, 2023, the following potential cross-reactivity is predicted:

  • . SARS-CoV-2 oligos are likely to detect some SARS-related coronavirus strains, as well as some bat coronavirus and bat SARS-like coronavirus strains.
  • . One bat 229E-like coronavirus sequence (KT253270) is likely to be detected by the Coronavirus 229E oligos at high viral titer.
On-Panel OrganismsOff-Panel OrganismsOff-Panel Organisms
AdenovirusBat SARS-like CoronavirusChlamydia psittaci
EnterovirusBat SARS-like Coronavirus
HKU5Coxiella burnetii
Human coronavirus 229EHerpes Simplex Virus 2 (HSV2)Cryptococcus neoformans
Human coronavirus HKU1Human BocavirusFusobacterium necrophorum
Human coronavirus NL63Human Herpes Virus 6 (HHV6)Haemophilus influenza
Human coronavirus OC43Human Parechovirus (HPeV)Histoplasma capsulatum
Human metapneumovirus (hMPV)Influenza CKlebsiella (Enterobacter) aerogenes
Influenza AMERS-coronavirusKlebsiella oxytoca
Influenza BSARS-coronavirusLegionella pneumophila
Parainfluenza virus 1Acinetobacter calcoaceticusLeptospira interrogans
Parainfluenza virus 2Arcanobacterium haemolyticumMycobacterium tuberculosis
Parainfluenza virus 3Aspergillus fumigatusMycoplasma orale
Parainfluenza virus 4Aspergillus flavusPneumocystis jirovecii (PJP)
Respiratory syncytial virus ABacillus anthracisProteus mirabilis
Respiratory syncytial virus BBlastomyces dennatitidisPseudomonas aeruginosa
RhinovirusBordetella aviumStaphylococcus epidermidis
SARS-CoV-2Bordetella bronchisepticaStenotrophomonas maltophilia
Chlamydia pneumoniaeBordetella hinziiStreptococcus dysgalactiae
Mycoplasma pneumoniaeBordetella holmesiiStreptococcus pneumonia
Bordetella pertussisStreptococcus pyogenes
Burkholderia cepaciaStreptococcus salivarius

Table 8. Potential Cross-Reactive Organisms assessed in the In Silico Exclusivity Analysis

39

Image /page/39/Picture/0 description: The image shows the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in "Luminex". A small registered trademark symbol is located to the right of the "x".

On-Panel OrganismsOff-Panel Organisms
Candida albicans
Ureaplasma urealyticum

ii) Microbial Interference

The performance of NxTAG® RPP v2 in the presence of potentially interfering offpanel organisms (i.e., pathogens that are not detected by NxTAG® RPP v2) was evaluated by testing 11 off-panel organisms against 22 on-panel organisms detected by the assay. The samples were prepared in negative simulated matrix (NSM), with on-panel targets in multi-analyte samples at Low-Moderate Positive concentration (3x-6x LoD) and pools of off-panel organisms at the high positive concentration. Each combination was tested in triplicate on the NxTAG® RPP v2 assay. No off-panel organism present at high positive concentration interfered with the detection of any on-panel organism present at low positive concentration. The summary of results is shown in Table 9.

| Off-Panel Organisms | Strain | Concentration Tested | Microbial
Interference
Detected |
|-----------------------------|------------------|----------------------|---------------------------------------|
| Bordetella pertussis | A639 | 1.00E+06 CFU/mL | None |
| Cytomegalovirus | Merlin | 1.00E+05 TCID50/mL | None |
| Corynebacterium diphtheriae | Z116 | 1.00E+06 CFU/mL | None |
| Haemophilus influenzae | Type b; MinnA | 1.00E+06 CFU/mL | None |
| Measles Virus | N/A | 1.00E+05 TCID50/mL | None |
| Moraxella catarrhalis | Strain NE 11 | 1.00E+06 CFU/mL | None |
| Mumps Virus | N/A | 1.00E+05 TCID50/mL | None |
| Neisseria meningitides | Serotype A | 1.00E+06 CFU/mL | None |
| Pseudomonas aeruginosa | Clinical isolate | 1.00E+06 CFU/mL | None |
| Staphylococcus aureus | 102-04 | 1.00E+06 CFU/mL | None |
| Streptococcus pneumoniae | Z022 | 1.00E+06 CFU/mL | None |

Table 9: NxTAG® RPP v2 Microbial Interference

iii) Competitive Interference (Co-infection)

The performance of NxTAG® RPP v2 assay in the presence of potentially interfering on-panel organisms (i.e., pathogens that are detected by NxTAG® RPP v2) was

40

evaluated by testing samples that contain multiple on-panel targets, which included clinically relevant co-infections that occur in respiratory samples. The samples were prepared in negative simulated matrix (NSM), with on-panel organisms (in either single-analyte or multi-analyte samples) at Low-Moderate Positive concentration (3x-6x LoD), and the potentially interfering on-panel organisms at high positive concentration. Each combination was tested in triplicate on the NxTAG® RPP v2 assay. No on-panel organism present at high positive concentration interfered with the detection of any other on-panel organism present at low-moderate positive concentration. The summary of results is shown in Table 10.

| High Positive | | Low-Moderate Positive | Competitive
Interference
Detected |
|-----------------------------------------------------------------------------|-------------------------|-----------------------------------------|-----------------------------------------|
| Target | Concentration | Target | |
| Influenza A H1pdm09
(strain: A/NY/02/09) | 1.00E+05
TCID50/mL | Respiratory Syncytial Virus A | None |
| | | Rhinovirus | None |
| | | Respiratory Syncytial Virus B | None |
| | | Influenza A H3 | None |
| | | Influenza B | None |
| | | Parainfluenza virus 3 | None |
| | | Mycoplasma pneumoniae | None |
| | | SARS-CoV-2 | None |
| | | Human Metapneumovirus | None |
| | | Adenovirus | None |
| Influenza A H3
(Strain:
Wisconsin/67/05) | 1.00E+05
TCID50/mL | Influenza A H1pdm09 | None |
| | | Respiratory Syncytial Virus A | None |
| | | Rhinovirus | None |
| | | Respiratory Syncytial Virus B | None |
| | | Influenza B | None |
| | | Parainfluenza virus 3 | None |
| | | Mycoplasma pneumoniae | None |
| | | SARS-CoV-2 | None |
| | | Human Metapneumovirus | None |
| | | Adenovirus | None |
| Influenza B | 1.00E+05
TCID50/mL | Influenza A H1pdm09 | None |
| High Positive | | Low-Moderate Positive | Competitive
Interference
Detected |
| Target | Concentration | Target | |
| (Strain: Florida/02/06) | TCID50/mL | Respiratory Syncytial Virus A | None |
| | | Rhinovirus | None |
| | | Respiratory Syncytial Virus B | None |
| | | Influenza A H3 | None |
| | | Parainfluenza virus 3 | None |
| | | Mycoplasma pneumoniae | None |
| | | SARS-CoV-2 | None |
| | | Human Metapneumovirus | None |
| | | Adenovirus | None |
| | | Influenza A H1pdm09 | None |
| | | Respiratory Syncytial Virus A | None |
| Respiratory Syncytial
Virus B
(Strain: B/18537) | | Rhinovirus | None |
| | | Influenza A H3 | None |
| | | Influenza B | None |
| | | Parainfluenza virus 3 | None |
| | | Mycoplasma pneumoniae | None |
| | | SARS-CoV-2 | None |
| | | Human Metapneumovirus | None |
| | | Adenovirus | None |
| | | Influenza A H1pdm09 | None |
| | $6.30E+04^a$
PFU/mL | Respiratory Syncytial Virus A | None |
| Respiratory Syncytial
Virus B
(Strain:
B/WV/14617/85) | | Rhinovirus | None |
| | | Influenza A H3 | None |
| | | Influenza B | None |
| | | Parainfluenza virus 3 | None |
| | | Mycoplasma pneumoniae | None |
| | | SARS-CoV-2 | None |
| | | Human Metapneumovirus | None |
| | | Adenovirus | None |
| SARS-CoV-2
(Strain: USA-WA- | 1.00E+07
Copies/mL | Influenza A H1pdm09 | None |
| | | Respiratory Syncytial Virus A | None |
| High Positive | | Low-Moderate Positive | Competitive
Interference
Detected |
| Target | Concentration | Target | |
| 1/2020) | | Rhinovirus | None |
| | | Respiratory Syncytial Virus B | None |
| | | Influenza A H3 | None |
| | | Influenza B | None |
| | | Parainfluenza virus 3 | None |
| | | Mycoplasma pneumoniae | None |
| | | Human Metapneumovirus | None |
| | | Adenovirus | None |
| | | Influenza A H1pdm09 | None |
| | | Respiratory Syncytial Virus A | None |
| | | Rhinovirus | None |
| | | Respiratory Syncytial Virus B | None |
| Coronavirus NL63
(Strain: NL63) | 1.00E+05
TCID50/mL | Influenza A H3 | None |
| | | Influenza B | None |
| | | Parainfluenza virus 3 | None |
| | | Mycoplasma pneumoniae | None |
| | | SARS-CoV-2 | None |
| | | Human Metapneumovirus | None |
| | | Adenovirus | None |
| | | Influenza A H1pdm09 | None |
| Human
Metapneumovirus
(Strain: hMPV-16, Type
A1, IA10-2003) | 1.00E+05
TCID50/mL | Respiratory Syncytial Virus A | None |
| | | Rhinovirus | None |
| | | Respiratory Syncytial Virus B | None |
| | | Influenza A H3 | None |
| | | Influenza B | None |
| | | Parainfluenza virus 3 | None |
| | | Mycoplasma pneumoniae | None |
| | | SARS-CoV-2 | None |
| | | Human Metapneumovirus | None |
| | | Adenovirus | None |
| Human | 3.50E+04a | Influenza A H1pdm09 | None |
| High Positive | | Low-Moderate Positive | Competitive
Interference
Detected |
| Target | Concentration | Target | |
| Metapneumovirus
(Strain: hMPV-3, Type
B1, Peru2-2002) | TCID50/mL | Respiratory Syncytial Virus A | None |
| | | Rhinovirus | None |
| | | Respiratory Syncytial Virus B | None |
| | | Influenza A H3 | None |
| | | Influenza B | None |
| | | Parainfluenza virus 3 | None |
| | | Mycoplasma pneumoniae | None |
| | | SARS-CoV-2 | None |
| | | Adenovirus | None |
| | | Influenza A H1pdm09 | None |
| Human
Metapneumovirus
(Strain: hMPV-5, Type
B1, Peru3-2003 G gene) | 1.00E+05
TCID50/mL | Respiratory Syncytial Virus A | None |
| | | Rhinovirus | None |
| | | Respiratory Syncytial Virus B | None |
| | | Influenza A H3 | None |
| | | Influenza B | None |
| | | Parainfluenza virus 3 | None |
| | | Mycoplasma pneumoniae | None |
| | | SARS-CoV-2 | None |
| | | Adenovirus | None |
| | | Influenza A H1pdm09 | None |
| Rhinovirus
(Strain: Type 85, 50-
525-CV54 [V-192-001-
021]) | 1.00E+05
TCID50/mL | Respiratory Syncytial Virus A | None |
| | | Respiratory Syncytial Virus B | None |
| | | Influenza A H3 | None |
| | | Influenza B | None |
| | | Parainfluenza virus 3 | None |
| | | Mycoplasma pneumoniae | None |
| | | SARS-CoV-2 | None |
| | | Human Metapneumovirus | None |
| | | Adenovirus | None |
| Adenovirus B | | Influenza A H1pdm09 | None |
| High Positive | Low-Moderate Positive | Competitive
Interference
Detected | |
| Target | Concentration | Target | |
| (Strain: Type 14, 2006
isolate) | $1.00E+05$
TCID50/mL | Respiratory Syncytial Virus A | None |
| | | Rhinovirus | None |
| | | Respiratory Syncytial Virus B | None |
| | | Influenza A H3 | None |
| | | Influenza B | None |
| | | Parainfluenza virus 3 | None |
| | | Mycoplasma pneumoniae | None |
| | | SARS-CoV-2 | None |
| | | Human Metapneumovirus | None |

Table 10: NxTAG® RPP v2 Competitive Interference

Confidential & Restricted

510(k) Summary

41

Image /page/41/Picture/0 description: The image shows the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in "Luminex". A small registered trademark symbol is located to the right of the "x".

Confidential & Restricted

510(k) Summary

42

Image /page/42/Picture/0 description: The image shows the word "Luminex" in a bold, sans-serif font. There is a small, dark gray circle above the "i" in "Luminex". A small registered trademark symbol is located to the right of the "x".

Confidential & Restricted

510(k) Summary

Page 39 of 60

43

Image /page/43/Picture/0 description: The image shows the Luminex logo in black and white. The logo consists of the word "Luminex" in a bold, sans-serif font, with a small gray circle above the "i". A registered trademark symbol is present to the right of the "x". The logo is simple and modern.

Confidential & Restricted

510(k) Summary

44

ª The highest possible concentration was tested.

Additional competitive interference was evaluated for SARS-CoV-2. Low Positive SARS-CoV-2 (3x LoD) was tested against the remaining 13 NxTAG® RPP v2 assay targets that were not tested with the SARS-CoV-2 containing multi-analyte combinations. High Positive targets were tested at 1.00E+06 CCU/mL or IFU/mL for bacteria; 1.00E+05 TCIDso/mL, PFU/mL, or 1.00E+07 Copies/mL, or highest possible concentration for virus. Samples were prepared in negative simulated matrix and each combination was tested in triplicate with the assay. No interference of SARS-CoV-2 low positive detection was observed (Table 11).

Table 11: NxTAG® RPP v2 Competitive Interference Study – Additional Tests Performed with SARS-CoV-2

| High Positive | | Low Positive | Competitive
Interference
Detected |
|-------------------------------|--------------------|--------------|-----------------------------------------|
| Target | Concentration | Target | |
| Influenza A H1 | 1.00E+05 TCID50/mL | SARS-CoV-2 | None |
| Respiratory Syncytial Virus A | 1.00E+05 PFU/mL | | None |
| Parainfluenza virus 1 | 1.00E+05 TCID50/mL | | None |
| Parainfluenza virus 2 | 1.00E+05 TCID50/mL | | None |
| Parainfluenza virus 3 | 1.00E+05 TCID50/mL | | None |

45

Image /page/45/Picture/0 description: The image shows the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in "Luminex". A small registered trademark symbol is located to the right of the "x".

Parainfluenza virus 4Aa1.00E+05 TCID50/mL
Parainfluenza virus 4Ba1.00E+05 TCID50/mL
Coronavirus 229E1.00E+05 TCID50/mL
Coronavirus OC431.00E+05 TCID50/mL
Coronavirus HKU11.00E+06b Copies/mL
Enterovirusc1.00E+05 TCID50/mL
Chlamydia pneumoniae1.00E+06 IFU/mL
Mycoplasma pneumoniae1.00E+06 CCU/mL

ª Reported by NxTAG RPP as Parainfluenza virus 4

b The highest possible concentration was tested

¢ Reported by NxTAG RPP v2 as Rhinovirus/Enterovirus

iv) Interfering Substances:

The performance of NxTAG® RPP v2 in the presence of potentially interfering substances was assessed. Twenty non-microbial substances commonly found in respiratory specimens were tested on the assay alone or in the presence of pathogens detected by the assay in multi-analyte samples. The samples were prepared in negative simulated matrix (NSM), with the on-panel organisms at Low-Moderate Positive concentration (3x-6x LoD) and the potentially interfering substance at the concentration listed in Table 14. All samples were tested in triplicate on the NxTAG® RPP v2 assay. None of the substances tested interfered with the detection of on-panel organisms present in the sample, with the exception of menthol and FluMist®. Menthol interfered with the detection of Coronavirus OC43 at 1% w/v; no interference was observed when menthol was tested at 0.5% w/v. FluMist® generated positive calls for Influenza A (matrix), Influenza A H1pdm09, Influenza A H3, and Influenza B for all replicates it was present in. These positive calls are expected as FluMist® contains attenuated Influenza A H1N1, Influenza A H3N2, and Influenza B strains. Positive influenza results obtained in a patient who received FluMist® prior to sample collection may be due to detection of vaccine virus and may mask a true positive result due to infection by one or more of these analytes. The list of potentially interfering substances and the concentrations tested are shown in Table 12.

| Potential Interferent | 1991 - 1971 - 111 1 - 11 1 Vá 1116 - 111 1 Vá 1116 - 111 - 111 - Vá 1116 - 111 - 11 - 111 - 111 - 111 - 111 - 111 - 111 - 111 - 111 - 111 - 111 - 111 - 111 - 111 - 111 -
Active Ingredient | Concentration Tested |
|--------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------|
| Human Whole Blood | N/A | 5% (v/v) |
| Potential Interferent | Active Ingredient | Concentration Tested |
| Human Genomic DNA | N/A | 20 ng/µL |
| Mucin | Mucin | 100 µg/mL |
| Phenylephrine | Phenylephrine | 0.03 µg/mL |
| Beclomethasone
dipropionate | Beclomethasone
dipropionate | 25 µg/mL |
| Dexamethasone | Dexamethasone | 12 µg/mL |
| Flunisolide | Flunisolide | 5 µg/mL |
| Triamcinolone acetonide | Triamcinolone acetonide | 22 µg/mL |
| Budesonide | Budesonide | $6.30E-03$ µg/mL |
| Mometasone furoate | Mometasone furoate | $4.50E-04$ µg/mL |
| Fluticasone proprionate | Fluticasone | $1.26E-03$ µg/mL |
| Drixoral® | Oxymetaxoline | 10% (v/v) |
| | | 15% (v/v) |
| ZICAM® Allergy Relief | Galphimia Glauca
Histaminum
Hydrochloricum
Luffa operculata
Sulfur | 1% (v/v) |
| | | 5% (v/v) |
| Salinex® | Sodium Chloride | 1% (v/v) |
| | | 15% (v/v) |
| Mupirocin | Mupirocin | 1.5 µg/mL |
| Tobramycin | Tobramycin | 33 µg/mL |
| | | 600 µg/mL |
| Zanamivir | Zanamivir | 100 µg/mL |
| FluMist® | Influenza A H1N1,
Influenza A H3N2,
Influenza B Yamagata
lineage, Influenza B Victoria
Lineage | 0.5% (v/v) a |
| Benzocaine | Benzocaine | 10% (w/v) |
| | | 1% (w/v) b |
| Menthol | Menthol | 0.5% (w/v) |
| Leukocyte | Leukocyte | $1.00E+03$ cells/µL |
| Early Defence Nasal Spray® | Zinc | 5% (v/v) |

Table 12: NxTAG® RPP v2 Interfering Substances

46

ª FluMist® demonstrated interference with the detection of Influenza A (matrix), Influenza A H1pdm09, Influenza A H3, and Influenza B at 0.5% v/v.

₪ Menthol demonstrated interference with the detection of Coronavirus OC43 at 1% w/v; no interference was observed at 0.5% w/v.

  • ν) Carry-Over/Cross-Contamination:

47

The risk of carry-over and cross-contamination events for the NxTAG® RPP v2 assay was assessed by testing samples at high titer in alternating pattern with negative samples. Two representative targets, SARS-CoV-2 (viral) and Mycoplasma pneumoniae (bacterial), were each extracted in an alternating arrangement with the negative sample across two easyMAG instruments. The extracts were then tested in an alternating arrangement with the NxTAG® RPP v2 assay. Two false positives were observed for the SARS-CoV-2 target; one after a negative sample and the other after a high titer samples were re-run to determine whether the extracts were contaminated, and the re-run results confirmed the contamination of the Following this, the samples were re-prepared and re-tested, generating extracts. the expected results.

h. Assay cut-off

Thresholds for the NxTAG® RPP v2 assay are provided in Table 13.

AnalyteMFI ThresholdMDD Threshold
Influenza A4535
Influenza A H1 (H1-A)9075
Influenza A H1pdm09 (H1-B)5545
Influenza A H38050
Influenza B6040
RSV A5045
RSV B4535
Parainfluenza 16550
Parainfluenza 27055
Parainfluenza 36050
Parainfluenza 4A a7055
Parainfluenza 4B a6045
SARS-CoV-2 (ORF1ab) b3530
SARS-CoV-2 (M) b3530
Coronavirus 229E6050
Coronavirus NL637560
Coronavirus OC437055
Coronavirus HKU16040
Metapneumovirus5540
Rhinovirus/Enterovirus5040
Adenovirus7565
Chlamydia pneumoniae4540

Confidential & Restricted

510(k) Summary

48

Image /page/48/Picture/0 description: The image shows the logo for Luminex. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in Luminex. A registered trademark symbol is to the right of the x.

AnalyteMFI ThresholdMDD Threshold
Mycoplasma pneumoniae4030
Internal Control120100

ª NxTAG RPP v2 does not differentiate Parainfluenza virus 4A and 4B, both of which are reported as Parainfluenza virus 4

₪ NxTAG RPP v2 reports a single combined result for the SARS-CoV-2 ORF1ab and M gene targets

2. Comparison Studies:

  • Method comparison with predicate device: a.
    Not applicable.

  • b. Matrix and Multi-Analyte Sample Comparison:
    Equivalency between multi-analyte (MA) and single target samples, and NCM and negative simulated matrix (NSM) were assessed to demonstrate the validity of using MA samples and/or NSM in applicable analytical studies. Eight (8) MA samples, covering all targets probed by NxTAG® RPP v2, were evaluated. Each MA sample consisted of 2-3 targets and was prepared in both NCM and NSM at or near the LoD concentration (1x – 2x LoD) confirmed with single target samples in NCM. Twenty (20) replicates of each MA were tested, and all targets in MA samples generated ≥ 95% positivity. The results demonstrate equivalency between single-analyte and multi-analyte samples as well as between NCM and NSM.

The multi-analyte sample composition and the equivalency test results are shown in Table 14.

| Multi-
analyte
Sample | Organism | Confirmed LoD
(Copies/mL) | Positivity (%) | |
|-----------------------------|---------------------------------|------------------------------|---------------------|---------------------|
| | | | MA Sample in
NCM | MA Sample in
NSM |
| MA-1 | Influenza A 2009 H1N1 (subtype) | 9.84E+02 | 20/20 (100%) | 20/20 (100%) |
| | Respiratory Syncytial Virus A | 4.97E+03 | 19/20 (95%) | 20/20 (100%) |
| | Rhinovirus | 1.54E+03 | 20/20 (100%) | 20/20 (100%) |
| MA-2 | Influenza A H3 (subtype) | 5.60E+01 | 20/20 (100%) | 20/20 (100%) |
| | Respiratory Syncytial Virus B | 7.21E+03 | 20/20 (100%) | 20/20 (100%) |

Table 14: NxTAG® RPP v2 Multi-Analyte Vs. Single Analyte, and Negative Clinical Matrix Vs. Negative Simulated Matrix Equivalency

49

| Multi-
analyte
Sample | Organism | Confirmed LoD
(Copies/mL) | Positivity (%) | |
|-----------------------------|-------------------------|------------------------------|---------------------|---------------------|
| | | | MA Sample in
NCM | MA Sample in
NSM |
| MA-3 | Influenza B | 6.33E+01 | 20/20 (100%) | 19/20 (95%) |
| MA-3 | Parainfluenza virus 3 | 1.01E+03 | 20/20 (100%) | 20/20 (100%) |
| MA-3 | Mycoplasma pneumoniae | 3.23E+03 | 20/20 (100%) | 20/20 (100%) |
| MA-4 | SARS-CoV-2 | 5.00E+02 | 20/20 (100%) | 20/20 (100%) |
| MA-4 | Human Metapneumovirus | 2.62E+02 | 20/20 (100%) | 19/20 (95%) |
| MA-4 | Adenovirus | 1.42E+03 | 20/20 (100%) | 20/20 (100%) |
| MA-5 | Influenza A H3 (Matrix) | 1.68E+02 | 20/20 (100%) | 20/20 (100%) |
| MA-5 | Coronavirus NL63 | 1.00E+02 | 20/20 (100%) | 20/20 (100%) |
| MA-5 | Coronavirus HKU1 | 4.18E+03 | 20/20 (100%) | 19/20 (95%) |
| MA-6 | Influenza H1 (subtype) | 1.60E+03 | 20/20 (100%) | 19/20 (95%) |
| | Parainfluenza virus 1 | 6.92E+02 | 20/20 (100%) | 20/20 (100%) |
| | Chlamydia pneumoniae | 2.38E+02 | 20/20 (100%) | 20/20 (100%) |
| MA-7 | Parainfluenza virus 2 | 3.45E+02 | 19/20 (95%) | 19/20 (95%) |
| | Parainfluenza virus 4B | 7.15E+03 | 20/20 (100%) | 20/20 (100%) |
| | Coronavirus 229E | 3.81E+02 | 20/20 (100%) | 19/20 (95%) |
| MA-8 | Parainfluenza virus 4A | 1.69E+04 | 20/20 (100%) | 20/20 (100%) |
| | Coronavirus OC43 | 4.55E+03 | 20/20 (100%) | 20/20 (100%) |

Specimen Collection Device Comparison: C.

The equivalency between three swab types (swabs with a nylon flocked tip, polyester tip, and rayon tip) for the collection of samples for testing on the NxTAG® RPP v2 was evaluated. The study assessed the transfer of samples from the swab to the collection media. Four multi-analyte (MA) samples consisting of targets detected by the NxTAG® RPP v2 assay were prepared in negative simulated matrix (NSM) and tested at a final concentration of 3x-6x LoD, along with a negative sample.

Samples prepared using swabs with a nylon flocked tip and a polyester tip generated 100% positivity for all targets present in the respective multi-analyte samples and 0% positivity for all targets for the negative sample.

50

Samples prepared using swabs with a rayon tip only generated 100% positivity for all targets present in the MA1 and MA2 samples, and 0% positivity for all targets for the negative sample. For the MA3 sample, two of three replicates generated negative results for all targets (Influenza B, Parainfluenza virus 3, and M. pneumoniae) and for the MA4 sample, one of three replicates generated a negative result for Adenovirus.

The results demonstrate equivalency between swabs with nylon flocked tip and polyester tip (Table 15). Based on the results of this study, rayon-tipped swabs should not be used to collect specimens for use with the NxTAG RPP v2 assay.

SampleOrganismTarget Positivity
Nylon FlockedPolyesterRayon
MA1Influenza A 2009 H1N1 (subtype)100% (3/3)100% (3/3)100% (3/3)
MA1Respiratory Syncytial Virus A100% (3/3)100% (3/3)100% (3/3)
MA1Rhinovirus100% (3/3)100% (3/3)100% (3/3)
MA2Influenza A H3 (subtype)100% (3/3)100% (3/3)100% (3/3)
MA2Respiratory Syncytial Virus B100% (3/3)100% (3/3)100% (3/3)
MA3Influenza B100% (3/3)100% (3/3)33% (1/3)
MA3Parainfluenza virus 3100% (3/3)100% (3/3)33% (1/3)
MA3Mycoplasma pneumoniae100% (3/3)100% (3/3)33% (1/3)
MA4SARS-CoV-2100% (3/3)100% (3/3)100% (3/3)
MA4Human Metapneumovirus100% (3/3)100% (3/3)100% (3/3)
MA4Adenovirus100% (3/3)100% (3/3)67% (2/3)
NEGN/A0% (0/3)0% (0/3)0% (0/3)

Table 15: NxTAG® RPP v2 Assay Swab Equivalency

d. Specimen Collection Media and Extraction Comparison:

Equivalency between collection media; Universal Transport Media (UTM), and Remel MicroTest™ M4RT (M4RT), and between two extraction systems (bioMérieux's NucliSENS® easyMAG® and EMAG®) was assessed to verify their compatibility with the NxTAG® RPP v2 assay.

51

To assess collection media equivalency, four multi-analyte samples consisting of representative targets were contrived in pooled negative nasopharyngeal swabs (NPS) collected in UTM (NCM), and in pooled negative NPS collected in M4RT (NCM-M4RT). The samples, prepared at 3 dilution levels: Above LoD (5x -9x LoD), At/Near LoD (1x-2x LoD), and Below LoD (1/3x-2/3x LoD), along with a negative sample (negative clinical matrix alone), were extracted using the EMAG system and tested on the NxTAG® RPP v2 assay.

All samples prepared in NCM and extracted using easyMAG generated ≥ 95% positivity for all targets at concentrations that were ≤ 2x LoD concentration confirmed in using the EMAG in the LoD study. The results demonstrate equivalency between extractions by EMAG and easyMAG for use with NxTAG® RPP v2. Results are summarized in Table 16.

| Organism | Strain information | Concentration
(Copies/mL) | Sample
Type
(LoD) | Target Positivity (%) | |
|----------------------------------|--------------------|------------------------------|-------------------------|-----------------------|--------------|
| Influenza A 2009
H1N1 | A/NY/02/09 | 8.52E+03 | Above | 10/10(100%) | 10/10 (100%) |
| | | 1.70E+03 | At/Near | 30/30 (100%) | 30/30 (100%) |
| | | 5.68E+02 | Below | 10/10 (100%) | 7/10 (70%) |
| Respiratory
Syncytial Virus A | A2 | 2.48E+04 | Above | 10/10 (100%) | 10/10 (100%) |
| | | 4.97E+03 | At/Near | 30/30 (100%) | 30/30 (100%) |
| | | 1.66E+03 | Below | 6/10 (60%) | 5/10 (50%) |
| Rhinovirus | 50-525-CV54 | 7.68E+03 | Above | 10/10 (100%) | 10/10 (100%) |
| | | 1.54E+03 | At/Near | 30/30 (100%) | 30/30 (100%) |
| | | 5.12E+02 | Below | 10/10 (100%) | 9/10 (90%) |
| Influenza A H3 | A/Wisconsin/67/05 | 2.80E+02 | Above | 10/10 (100%) | 10/10 (100%) |
| | | 5.60E+01 | At/Near | 30/30 (100%) | 30/30 (100%) |
| | | 1.87E+01 | Below | 4/10 (40%) | 4/10 (40%) |
| Respiratory
Syncytial Virus B | 18537 | 3.60E+04 | Above | 10/10 (100%) | 10/10 (100%) |
| | | 7.21E+03 | At/Near | 30/30 (100%) | 30/30 (100%) |
| | | 2.40E+03 | Below | 6/10 (60%) | 3/10 (30%) |
| Influenza B | B/Florida/02/06 | 3.16E+02 | Above | 10/10 (100%) | 10/10 (100%) |
| | | 6.33E+01 | At/Near | 29/30 (97%) | 29/30 (97%) |
| | | 2.11E+01 | Below | 5/10 (50%) | 4/10 (40%) |
| Parainfluenza virus | C 243 | 5.07E+03 | Above | 10/10 (100%) | 10/10 (100%) |

Table 16: NxTAG® RPP v2 Collection Media Equivalency

52

Image /page/52/Picture/0 description: The image shows the logo for Luminex. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray circle above the "i" in Luminex. A registered trademark symbol is next to the x.

| Organism | Strain information | Concentration
(Copies/mL) | Sample
Type
(LoD) | Target Positivity (%) | |
|--------------------------|--------------------------------|------------------------------|-------------------------|-----------------------|--------------|
| | | | | NCM (UTM) | NCM-M4RT |
| 3 | | 2.03E+03 | At/Near | 30/30 (100%) | 29/30 (97%) |
| | | 1.01E+03 | At/Near | 26/30 (87%) | 22/30 (73%) |
| | | 3.38E+02 | Below | 0/10 (0%) | 2/10 (20%) |
| Mycoplasma
pneumoniae | M129 | 2.15E+04 | Above | 10/10 (100%) | 10/10 (100%) |
| | | 4.30E+03 | At/Near | 30/30 (100%) | 29/30 (97%) |
| | | 1.43E+03 | Below | 3/10 (30%) | 4/10 (40%) |
| SARS-CoV-2 | USA-WA1/2020 | 2.50E+03 | Above | 10/10 (100%) | 10/10 (100%) |
| | | 5.00E+02 | At/Near | 30/30 (100%) | 30/30 (100%) |
| | | 1.67E+02 | Below | 10/10 (100%) | 7/10 (70%) |
| Human
Metapneumovirus | hMPV-3, Type B1,
Peru2-2002 | 1.31E+03 | Above | 10/10 (100%) | 10/10 (100%) |
| | | 2.62E+02 | At/Near | 29/30 (97%) | 30/30 (100%) |
| | | 8.73E+01 | Below | 5/10 (50%) | 7/10 (70%) |
| Adenovirus | Type 14 | 1.23E+04 | Above | 10/10 (100%) | 10/10 (100%) |
| | | 3.69E+03 | At/Near | 30/30 (100%) | |
| | | 2.46E+03 | At/Near | 28/30 (93%) | 30/30 (100%) |
| | | 8.20E+02 | Below | 4/10 (40%) | 0/10 (0%) |
| N/A
(Negative Sample) | N/A | N/A | N/A | 0/10(0%) | 0/10 (0%) |

To demonstrate extractor equivalency, eight multi-analyte samples covering all targets probed by NxTAG® RPP v2 were tested. Multi-analyte samples were contrived in NCM, extracted on the easyMAG system, and tested on the NxTAG® RPP v2 assay.

All samples prepared in NCM and extracted using easyMAG generated ≥ 95% positivity for all targets at concentrations that were within 2x LoD of the confirmed concentration in multi-analyte samples prepared in NCM and extracted using the EMAG. The results demonstrate equivalency between extractions by EMAG and easyMAG for use with NxTAG® RPP v2. Results are summarized in Table 17.

Table 17: NxTAG® RPP v2 Extractor Equivalency

53

| Multi-analyte
Sample | Organism | Strain information | Concentration
(Copies/mL) | Sample Type
(LoD) | Positivity (%) |
|-------------------------|-------------------------------|--------------------------------|------------------------------|----------------------|----------------|
| easyMAG (in NCM) | | | | | |
| MA1 | Influenza A 2009 H1N1 | A/NY/02/09 | 1.70E+03 | At/Near | 20/20 (100%) |
| MA1 | Respiratory Syncytial Virus A | A2 | 4.97E+03 | At/Near | 20/20 (100%) |
| MA1 | Rhinovirus | 50-525-CV54 | 5.12E+02 | Below | 20/20 (100%) |
| MA2 | Influenza A H3 | A/Wisconsin/67/05 | 5.60E+01 | At/Near | 20/20 (100%) |
| MA2 | Respiratory Syncytial Virus B | 18537 | 7.21E+03 | At/Near | 20/20 (100%) |
| MA3 | Influenza B | B/Florida/02/06 | 6.33E+01 | At/Near | 20/20 (100%) |
| MA3 | Parainfluenza virus 3 | C 243 | 1.01E+03 | At/Near | 20/20 (100%) |
| MA3 | Mycoplasma pneumoniae | M129 | 4.30E+03 | At/Near | 20/20 (100%) |
| MA4 | SARS-CoV-2 | USA-WA1/2020 | 5.00E+02 | At/Near | 20/20 (100%) |
| MA4 | Human Metapneumovirus | hMPV-3, Type B1,
Peru2-2002 | 2.62E+02 | At/Near | 20/20 (100%) |
| MA4 | Adenovirus | Type 14 | 2.46E+03 | At/Near | 20/20 (100%) |
| MA5 | Influenza A Matrix | A/Wisconsin/67/05 | 1.68E+02 | At/Near | 20/20 (100%) |
| MA5 | Coronavirus NL63 | N/A | 1.00E+02 | At/Near | 20/20 (100%) |
| MA5 | Coronavirus HKU1 | Type B | 4.18E+03 | At/Near | 20/20 (100%) |
| MA6 | Influenza H1 | A/Brisbane/59/07 | 5.35E+02 | Below | 19/20 (95%) |
| MA6 | Parainfluenza virus 1 | N/A | 6.92E+02 | Below | 20/20 (100%) |
| MA6 | Chlamydia pneumoniae | TW-183 | 7.93E+01 | Below | 20/20 (100%) |
| MA7 | Parainfluenza virus 2 | Greer | 3.45E+02 | At/Near | 19/20 (95%) |
| MA7 | Parainfluenza virus 4B | CH 19503 | 7.15E+03 | At/Near | 20/20 (100%) |
| MA7 | Coronavirus 229E | N/A | 3.81E+02 | At/Near | 20/20 (100%) |
| MA8 | Parainfluenza virus 4A | N/A | 5.65E+03 | Below | 19/20 (95%) |
| MA8 | Coronavirus OC43 | Betacoronavirus 1 | 4.55E+03 | At/Near | 20/20 (100%) |

3. Clinical Performance:

A multi-site clinical study established the clinical performance of the NxTAG® RPP v2 assay for the detection and identification of nucleic acids from multiple respiratory viruses and bacteria extracted from upper respiratory tract specimens collected from individuals with clinical signs and symptoms of a respiratory tract infection. The clinical performance of the NxTAG® RPP v2 assay was evaluated using clinical specimens prospectively collected between October 2022 and April 2023 from five geographically diverse clinical sites within the United States. The clinical study utilized leftover, de-

54

identified specimens collected from pediatric and adult patients exhibiting clinical signs and symptoms of a respiratory tract infection.

The NxTAG® RPP v2 results were compared to those obtained with an FDA-cleared molecular assay and PCR/bi-directional sequencing for influenza A subtyping. The twostep PCR analysis followed by BDS assays employed two independent sets of validated PCR assays. The primers used for PCR analysis and sequencing assays, where possible, were designed to amplify distinct regions from the investigational device. PCR analysis composite positive specimens were confirmed by BDS assays. See Table 18 for comparator method testing by target.

NxTAG® RPP v2 TargetComparator Method
Adenovirus
Enterovirus/Rhinovirus
Influenza A
Influenza A H3
Influenza B
Respiratory Syncytial Virus A
Respiratory Syncytial Virus B
Parainfluenza 1
Parainfluenza 2
Parainfluenza 3FDA cleared molecular assay
Parainfluenza 4
Coronavirus 229E
Coronavirus NL63
Coronavirus OC43
Coronavirus HKU1
Human Metapneumovirus
Chlamydia pneumoniae
Mycoplasma pneumoniae
Influenza A H1FDA cleared molecular assay followed by
Influenza A H1pdm09composite of PCR followed by BDS NAATs*
SARS-CoV-2FDA cleared molecular assay

Table 18: Prospective Comparator Method Algorithm

  • NAAT – Nucleic Acid Amplification Test

A total of 1844 prospective specimens, collected from five geographically diverse US sites were initially enrolled in the study, of which 19 were excluded from the analysis of performance (duplicate specimen, not from a unique subject (11), absence of signs and symptoms (5), improper labeling (2), operator error (1)). Nineteen of the remaining 1825 specimens initially produced invalid NxTAG RPP v2 results, of which 14 resolved upon repeat testing. Therefore, a total of 1820 prospectively collected specimens

55

generated valid NxTAG RPP v2 results after allowing for a single retest. Certain additional specimens were excluded from performance calculations for specific analytes based on the availability of valid results for the applicable comparator method. Clinical runs and re-runs using the NxTAG® RPP v2 assay were tested on the MAGPIX System by trained operators at three sites. Prospective specimen (Arm 1) testing occurred between March 2023 and April 2023.

For targets that exhibited low prevalence rates in the prospective study cohort, the prospective specimen set was supplemented with 320 pre-selected left-over, deidentified specimens (Arm 2) sourced from six sites in the United States. Pre-selected specimens were identified by Standard of Care (SoC) results and confirmed by BDS testing prior to enrollment in the study. Of the preselected specimens, 11 were excluded from the analysis of performance because confirmatory testing could not be completed. In addition, 3 specimens initially produced invalid NxTAG RPP v2 results, of which 2 resolved upon repeat testing. Therefore, a total of 308 preselected specimens were included in the analysis of performance. To minimize bias, pre-selected specimens were tested in a randomized, blinded manner with negative specimens at four sites. Pre-selected specimen (Arm 2) testing occurred between December 2021 and May 2023.

To supplement the number of clinical specimens positive for Chlamydia pneumoniae, RSV B, pre-2009 pandemic Influenza A H1N1, and Coronavirus 229E in the prospective and pre-selected arms of the study, additional testing was performed using contrived specimens. Contrived specimens were prepared by spiking representative strains into unique negative human nasopharyngeal specimens at 2x Limit of Detection (LoD), 10x LoD, and 100x LoD, for all strains except influenza A H1N1 which was prepared at 2x and 10x LoD. A total of 199 specimens were contrived and tested as part of Arm 3.

To minimize bias, contrived specimens were blinded, randomized, and tested along with Arm 2 positive and negative clinical specimens at two testing sites between December 2021 and January 2022. Results from contrived specimens were analyzed separately from the prospective and pre-selected data sets.

Out of the 199 specimens included in the contrived study analysis, 198 (99.50%) generated valid NxTAG® RPP v2 Assay results (i.e., Positive or Negative) on the first attempt. There was one specimen (0.50%) with an invalid result on the initial run. This specimen generated a valid result after a single retest for a final success rate of 100%.

The invalid rate for prospective, pre-selected, and contrived specimens combined was 0.98% (23/2344) after the initial run. Of the 23 specimens with initial invalid results, 17 (0.73%) specimens generated valid NxTAG® RPP v2 results after a single retest, three (0.13%) specimens remained invalid on repeat, and three (0.13%) specimens were not retested due to volume limitations.

56

Lumi

For each target in the NxTAG® RPP v2 Assay, the performance (Positive Percent Agreement, Negative Percent Agreement, and 95% confidence interval) of the NxTAG® RPP v2 Assay as compared to the reference method are summarized in Tables 19 and 20 for prospective and pre-selected specimen analysis, respectively. The performance of the NxTAG® RPP v2 Assay for contrived specimens is presented separately in Table 21. For each of the contrived specimens (n = 199), negative results were obtained for all other analytes included on the panel that are not listed in Table 21.

Pathogen TargetPositive Percent AgreementNegative Percent Agreement
TP / (TP+FN)PPA (%)95% CITN / (TN+FP)NPA (%)95% CI
Viruses
Fresh39/39100%91%-100%733/73699.6%99%-100%
AdenovirusFrozen55/5993.2%84%-97%976/98099.6%99%-100%
Overall94/98a95.9%90%-98%1709/1716b99.6%99%-100%
Fresh2/2100%34%-100%773/773100%100%-100%
Coronavirus 229EFrozen5/5100%57%-100%1033/103499.9%99%-100%
Overall7/7100%65%-100%1806/180799.9%100%-100%
Fresh8/8100%68%-100%767/767100%100%-100%
Coronavirus HKU1Frozen12/1392.3%67%-99%1026/1026100%100%-100%
Overall20/21c95.2%77%-99%1793/1793100%100%-100%
Fresh25/2792.6%77%-98%748/748100%99%-100%
Coronavirus NL63Frozen23/2592%75%-98%1014/1014100%100%-100%
Overall48/5292.3%82%-97%1762/1762100%100%-100%
Fresh10/10100%72%-100%765/765100%100%-100%
Coronavirus OC43Frozen29/29100%88%-100%1010/1010100%100%-100%
Overall39/39100%91%-100%1775/1775100%100%-100%
Fresh87/87100%96%-100%680/68898.8%98%-99%
Human MetapneumovirusFrozen70/70100%95%-100%963/96999.4%99%-100%
Overall157/157100%98%-100%1643/1657d99.2%99%-99%
Fresh20/20100%84%-100%753/75599.7%99%-100%
Influenza AFrozen54/54100%93%-100%984/98599.9%99%-100%
Overall74/74100%95%-100%1737/1740e99.8%99%-100%
Fresh9/9100%70%-100%765/765100%100%-100%
Influenza A H1pdm09Frozen22/22100%85%-100%1017/1017100%100%-100%
Overall31/31100%89%-100%1782/1782100%100%-100%
Fresh0/0N/AN/A774/774100%100%-100%
Influenza A H1Frozen0/0N/AN/A1039/1039100%100%-100%
Overall0/0N/AN/A1813/1813100%100%-100%
Influenza A H3Fresh11/11100%74%-100%764/764100%99%-100%
Frozen34/3694.4%82%-98%1002/100399.9%99%-100%
Pathogen TargetPositive Percent AgreementNegative Percent Agreement
TP / (TP+FN)PPA (%)95% CITN /
(TN+FP)NPA (%)95% CI
Influenza BOverall45/47f95.7%86%-99%1766/176799.9%100%-100%
Fresh5/5100%57%-100%770/770100%100%-100%
Frozen6/6100%61%-100%1033/1033100%100%-100%
Parainfluenza 1Overall11/11100%74%-100%1803/1803100%100%-100%
Fresh7/7100%65%-100%768/768100%100%-100%
Frozen11/11100%74%-100%1028/1028100%100%-100%
Parainfluenza 2Overall18/18100%82%-100%1796/1796100%100%-100%
Fresh4/580%38%-96%770/770100%100%-100%
Frozen5/5100%57%-100%1034/1034100%100%-100%
Parainfluenza 3Overall9/1090%60%-98%1804/1804100%100%-100%
Fresh19/19100%83%-100%756/756100%99%-100%
Frozen23/23100%86%-100%1015/101699.9%99%-100%
Parainfluenza 4Overall42/42100%92%-100%1771/177299.9%100%-100%
Fresh2/366.7%21%-94%770/77299.7%99%-100%
Frozen11/1291.7%65%-99%1026/102799.9%99%-100%
RSV AOverall13/15g86.7%62%-96%1796/1799h99.8%100%-100%
Fresh10/10100%72%-100%764/76599.9%99%-100%
Frozen45/45100%92%-100%992/99499.8%99%-100%
RSV BOverall55/55100%93%-100%1756/1759i99.8%99%-100%
Fresh3/3100%44%-100%772/772100%100%-100%
Frozen17/17100%82%-100%1022/1022100%100%-100%
Rhinovirus /
EnterovirusOverall20/20100%84%-100%1794/1794100%100%-100%
Fresh123/13293.2%88%-96%643/643100%99%-100%
Frozen228/23796.2%93%-98%801/80299.9%99%-100%
SARS-CoV-2Overall351/369j95.1%92%-97%1444/144599.9%100%-100%
Fresh103/10697.2%92%-99%656/66099.4%98%-100%
Frozen126/12898.4%94%-100%902/90999.2%98%-100%
Overall229/234k97.9%95%-99%1558/1569l99.3%99%-100%
Bacteria
Chlamydia
pneumoniaeFresh0/0N/AN/A775/775100%100%-100%
Frozen0/0N/AN/A1039/1039100%100%-100%
Overall0/0N/AN/A1814/1814100%100%-100%
Mycoplasma
pneumoniaeFresh0/0N/AN/A775/775100%100%-100%
Frozen0/0N/AN/A1039/1039100%100%-100%
Overall0/0N/AN/A1814/1814100%100%-100%

Table 19: NxTAG® RPP v2 Performance for the Prospective Data Set

Confidential & Restricted

510(k) Summary

Page 53 of 60

57

Image /page/57/Picture/0 description: The image shows the Luminex logo in black and white. The logo consists of the word "Luminex" in a bold, sans-serif font, with a small gray circle above the "i". A registered trademark symbol is present to the right of the "x".

ªTwo of the four Adenovirus False Negative by BDS and two were not tested due to volume limitations.

bFour of the seven Adenovirus False Positives were positive by the molecular SoC assay.

'The one prospective Coronavirus HKU1 False Negative by the molecular SoC assay.

ণ Two of the fourteen Human Metapneumovirus False Positive by the molecular SoC assay. Seven samples could not be tested due to volume limitations.

€The Influenza A subtype was detected by the reference method for three Influenza A False Positives.

'One of the two Influenza A H3 False Negatives was negative by the molecular SoC assay.

80ne of the two Parainfluenza 4 False Negatives was negative by the molecular SoC assay.

Confidential & Restricted

510(k) Summary

58

Image /page/58/Picture/0 description: The image shows the logo for Luminex. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in Luminex. A registered trademark symbol is next to the "x".

1Two of the three Parainfluenza 4 False Positive by the molecular SoC assay.

1One of the three RSV A False Positives was positive by the molecular SoC assay.

Eight of the eighteen Rhinovirus False Negatives were negative by BDS, and three False Negatives were negative by the

  • molecular SoC assay. Five samples could not be tested due to volume limitations.
    *Two of the five SARS-CoV-2 False Negatives were negative by the molecular SoC assay.

'Six of the eleven SARS-CoV-2 False Positives were positive by the molecular SoC assay.

Positive Percent Agreement Negative Percent Agreement Pathogen Target TP / NPA TN / PPA (%) 95% Cl 95% Cl (TP+FN) (TN+FP) (%) Viruses Adenovirus Pre-Selected 1/1 100% 21%-100% 307/307 100% 99%-100% Coronavirus 229E Pre-Selected 11/11 100% 74%-100% 297/297 100% 99%-100% 30/32 80%-98% 276/276 Coronavirus HKU1 Pre-Selected 93.8% 100% 99%-100% 0/0 Coronavirus NL63 Pre-Selected N/A N/A 308/308 100% 99%-100% Coronavirus OC43 308/308 100% 99%-100% Pre-Selected 0/0 N/A N/A Human Pre-Selected 0/0 N/A N/A 308/308 100% 99%-100% Metapneumovirus Influenza A Pre-Selected 30/30 100% 89%-100% 277/278 99.6% 98%-100% Influenza A 29/30 96.7% 83%-99% 278/278 99%-100% Pre-Selected 100% H1pdm09 Influenza A H1 Pre-Selected 0/0 N/A N/A 277/278 99.6% 98%-100% Influenza A H3 Pre-Selected 0/0 N/A N/A 278/278 100% 99%-100% Influenza B 30/30 89%-100% 278/278 100% 99%-100% Pre-Selected 100% 29/29 Parainfluenza 1 Pre-Selected 100% 88%-100% 279/279 100% 99%-100% Parainfluenza 2 Pre-Selected 30/30 100% 89%-100% 278/278 100% 99%-100% Parainfluenza 3 Pre-Selected 0/0 N/A N/A 307/307 100% 99%-100% Parainfluenza 4 Pre-Selected 15/16 93.8% 72%-99% 292/292 100% 99%-100% RSV A Pre-Selected 0/0 N/A N/A 305/307 99.3% 98%-100% RSV B Pre-Selected 0/0 N/A N/A 306/307 99.7% 98%-100% Rhinovirus / Pre-Selected 1/1 100% 21%-100% 302/306 98.7% 97%-99% Enterovirus SARS-CoV-2 0/0 N/A 0/0 N/A N/A Pre-Selected N/A Bacteria Chlamydia Pre-Selected 14/14 100% 78%-100% 293/294 99.7% 98%-100% pneumoniae

Table 20: NxTAG® RPP v2 Performance for the Pre-Selected Data Set

59

Image /page/59/Picture/0 description: The image shows the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in "Luminex". A small registered trademark symbol is located to the right of the "x".

Pathogen TargetPositive Percent AgreementNegative Percent Agreement
TP /
(TP+FN)PPA (%)95% CITN /
(TN+FP)NPA (%)95% CI
Viruses
Mycoplasma pneumoniaePre-Selected48/5292.3%82%-97%256/256100%99%-100%
Pathogen TargetPositive Percent AgreementNegative Percent Agreement
TP /
(TP+FN)PPA (%)95% CITN /
(TN+FP)NPA (%)95% CI
AnalyteLoDViruses
2x25/25100%87%-100%N/AN/AN/A
Coronavirus10x12/12100%76%-100%N/AN/AN/A
229E100x12/12100%76%-100%N/AN/AN/A
Combined49/49100%93%-100%150/150100%98%-100%
2x26/26100%87%-100%N/AN/AN/A
Influenza A10x24/24100%86%-100%N/AN/AN/A
(matrix)100x0/0N/AN/AN/AN/AN/A
Combined50/50100%93%-100%149/149100%97%-100%
2x26/26100%87%-100%N/AN/AN/A
Influenza A H110x24/24100%86%-100%N/AN/AN/A
(subtype)100x0/0N/AN/AN/AN/AN/A
Combined50/50100%93%-100%149/149100%97%-100%
2x24/2596.0%80%-99%N/AN/AN/A
10x13/13100%77%-100%N/AN/AN/A
RSV B100x12/12100%76%-100%N/AN/AN/A
Combined49/5098.0%90%-100%148/14999.3%96%-100%
AnalyteLoDBacteria
2x25/25100%87%-100%N/AN/AN/A
Chlamydia10x12/1392.3%67%-99%N/AN/AN/A
pneumoniae100x12/12100%76%-100%N/AN/AN/A
Combined49/5098.0%90%-100%149/149100%97%-100%

Table 21: NxTAG® RPP v2 Performance for the Contrived Data Set

The study results demonstrate that the diagnostic accuracy of the NxTAG® RPP v2 assay is acceptable for the detection and identification of respiratory bacteria and viruses from NPS specimens collected from patients exhibiting clinical signs and symptoms of RTI.

60

Image /page/60/Picture/0 description: The image shows the Luminex logo. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in Luminex. A registered trademark symbol is next to the x.

61

Image /page/61/Picture/0 description: The image shows the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in "Luminex". A small registered trademark symbol is located to the right of the "x".

    1. Expected values/Reference range:

Table 22: NxTAG® RPP v2 Expected Values for Prospective Specimens by Age

0-1 years>1-5 years>5-21 years>21-65 years> 65 yearsUnknownOverall
Target (Analyte)#Pos(%)#Pos(%)#Pos(%)#Pos(%)#Pos(%)#Pos(%)#Pos(%)
Adenovirus3410.1%
(34/337)4015.8%
(40/253)226.7%
(22/329)50.8% (5/641)00.0%
(0/242)00.0%
(0/12)1015.6%
(101/1814)
Chlamydia pneumoniae00.0% (0/337)00.0%
(0/253)00.0%
(0/329)00.0% (0/641)00.0%
(0/242)00.0%
(0/12)00.0% (0/1814)
Coronavirus 229E10.3% (1/337)10.4%
(1/253)00.0%
(0/329)50.8% (5/641)10.4%
(1/242)00.0%
(0/12)80.4% (8/1814)
Coronavirus HKU130.9% (3/337)52.0%
(5/253)41.2%
(4/329)81.2% (8/641)00.0%
(0/242)00.0%
(0/12)201.1%
(20/1814)
Coronavirus NL63175.0% (17/337)124.7%
(12/253)82.4%
(8/329)91.4% (9/641)20.8%
(2/242)00.0%
(0/12)482.6%
(48/1814)
Coronavirus OC43164.7% (16/337)83.2%
(8/253)72.1%
(7/329)60.9% (6/641)20.8%
(2/242)00.0%
(0/12)392.1%
(39/1814)
Human
Metapneumovirus4513.4%
(45/337)4116.2%
(41/253)298.8%
(29/329)396.1% (39/641)145.8%
(14/242)325%
(3/12)1719.4%
(171/1814)
Influenza A72.1% (7/337)83.2%
(8/253)257.6%
(25/329)274.2% (27/641)104.1%
(10/242)00.0%
(0/12)774.2%
(77/1814)
Influenza A H1pdm0930.9% (3/337)31.2%
(3/253)82.4%
(8/329)142.2% (14/641)31.2%
(3/242)00.0%
(0/12)311.7%
(31/1813)
Influenza A H100.0% (0/337)00.0%
(0/253)00.0%
(0/328)00.0% (0/641)00.0%
(0/242)00.0%
(0/12)00.0% (0/1813)
Influenza A H341.2% (4/337)62.4%
(6/253)185.5%
(18/329)111.7% (11/641)72.9%
(7/242)00.0%
(0/12)462.5%
(46/1814)
Influenza B00.0% (0/337)31.2%
(3/253)30.9%
(3/329)50.8% (5/641)00.0%
(0/242)00.0%
(0/12)110.6%
(11/1814)

Confidential & Restricted

510(k) Summary

62

0-1 years>1-5 years>5-21 years>21-65 years> 65 yearsUnknownOverall
Target (Analyte)#Pos(%)#Pos(%)#Pos(%)#Pos(%)#Pos(%)#Pos(%)#Pos(%)
Mycoplasma
pneumoniae00.0% (0/337)00.0%
(0/253)00.0%
(0/329)00.0% (0/641)00.0%
(0/242)00.0%
(0/12)00.0% (0/1814)
Parainfluenza 161.8% (6/337)31.2%
(3/253)10.3%
(1/329)71.1% (7/641)10.4%
(1/242)00.0%
(0/12)181.0%
(18/1814)
Parainfluenza 210.3% (1/337)10.4%
(1/253)30.9%
(3/329)10.2% (1/641)31.2%
(3/242)00.0%
(0/12)90.5% (9/1814)
Parainfluenza 3154.5% (15/337)166.3%
(16/253)51.5%
(5/329)71.1% (7/641)00.0%
(0/242)00.0%
(0/12)432.4%
(43/1814)
Parainfluenza 472.1% (7/337)10.4%
(1/253)41.2%
(4/329)40.6% (4/641)00.0%
(0/242)00.0%
(0/12)160.9%
(16/1814)
RSV A288.3% (28/337)93.6%
(9/253)20.6%
(2/329)111.7% (11/641)83.3%
(8/242)00.0%
(0/12)583.2%
(58/1814)
RSV B103.0% (10/337)41.6%
(4/253)10.3%
(1/329)40.6% (4/641)10.4%
(1/242)00.0%
(0/12)201.1%
(20/1814)
Rhinovirus/ Enterovirus11333.5%
(113/337)7529.6%
(75/253)7522.8%
(75/329)6510.1%
(65/641)208.3%
(20/242)433.3%
(4/12)35219.4%
(352/1814)
SARS-CoV-2329.5% (32/336)124.8%
(12/251)216.5%
(21/325)11818.4%
(118/640)5623.3%
(56/240)19.1%
(1/11)24013.3%
(240/1803)

63

Image /page/63/Picture/0 description: The image shows the logo for Luminex. The logo is in black and white, with the word "Luminex" in a bold, sans-serif font. There is a gray dot above the "i" in Luminex. The logo is simple and modern.

N. Proposed Labeling:

The labeling provided in the submission satisfies the requirements of 21 CFR 809.10.

O. Conclusion:

The submitted information in this premarket notification is complete and supports a substantial equivalence decision.