VITEK 2 AST-Gram Negative Minocycline (<= 0.5 - >= 32 ug/mL)

K183551 · bioMerieux, Inc. · LON · Mar 7, 2019 · Microbiology

Device Facts

• Record ID: K183551
• Device Name: VITEK 2 AST-Gram Negative Minocycline (<= 0.5 - >= 32 ug/mL)
• Applicant: bioMerieux, Inc.
• Product Code: LON · Microbiology
• Decision Date: Mar 7, 2019
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 866.1645
• Device Class: Class 2

Intended Use

VITEK® 2 AST-Gram Negative Minocycline is designed for antimicrobial susceptibility testing of Gram Negative bacilli and is intended for use with the VITEK® 2 and VITEK® 2 Compact Systems as a laboratory aid in the determination of in vitro susceptibility to antimicrobial agents. The VITEK® 2 Gram-negative Susceptibility Card is intended for use with the VITEK® 2 Systems in clinical laboratories as an in vitro test to determine the susceptibility of clinically significant aerobic Gram-negative bacilli to antimicrobial agents when used as instructed.

Device Story

VITEK 2 AST-GN Minocycline is an automated, miniaturized, quantitative antimicrobial susceptibility test (AST) for Gram-negative bacilli. It uses a 64-well test card containing premeasured minocycline concentrations (1, 4, 8, 16 µg/mL) and nutrient media. The system processes a standardized saline suspension of the patient isolate (auto-diluted by VITEK 2 or manually for VITEK 2 Compact). The device fills, seals, and incubates the card, monitoring bacterial growth via optical scanner (light attenuation) every 15 minutes for up to 24 hours. The system's software calculates the Minimum Inhibitory Concentration (MIC) and assigns interpretive categories (S, I, R). Used in clinical laboratories by technicians/microbiologists, the output provides clinicians with susceptibility data to guide antibiotic therapy for infections caused by indicated organisms.

Clinical Evidence

Bench testing only. Performance evaluated using 367 clinical and 106 challenge isolates (473 total). Compared to CLSI broth microdilution reference method. Overall performance: 97.0% Essential Agreement (EA) and 93.7% Category Agreement (CA). Major error rate 0.3% (1/361), very major error rate 0.9% (1/112). Reproducibility was 100% for VITEK 2 (auto-dilution) and 99.63% (manual). Trending analysis identified specific MIC shifts for E. coli, S. marcescens, K. oxytoca, and C. freundii, which are addressed in device labeling.

Technological Characteristics

Miniaturized broth microdilution card; automated incubation and optical growth monitoring. Dimensions/form factor: VITEK 2 AST card. Connectivity: Integrated with VITEK 2 and VITEK 2 Compact systems. Software-based automated analysis of growth kinetics to determine MIC.

Indications for Use

Indicated for antimicrobial susceptibility testing of clinically significant aerobic Gram-negative bacilli, including Acinetobacter spp., Klebsiella (Enterobacter) aerogenes, Escherichia coli, and Klebsiella spp.

Regulatory Classification

Identification

A fully automated short-term incubation cycle antimicrobial susceptibility system is a device that incorporates concentrations of antimicrobial agents into a system for the purpose of determining in vitro susceptibility of bacterial pathogens isolated from clinical specimens. Test results obtained from short-term (less than 16 hours) incubation are used to determine the antimicrobial agent of choice to treat bacterial diseases.

Special Controls

*Classification.* Class II (special controls). The special control for this device is FDA's guidance document entitled “Class II Special Controls Guidance Document: Antimicrobial Susceptibility Test (AST) Systems; Guidance for Industry and FDA.”

Predicate Devices

• VITEK® 2 AST-GN Amikacin (K172731)

Submission Summary (Full Text)

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# Indications for Use

510(k) Number (if known)

Device Name

Indications for Use (Describe)

Type of Use (*Select one or both, as applicable*)Prescription Use (Part 21 CFR 801 Subpart D)

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

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## 510(k) SUMMARY

## VITEK® 2 AST-GN Minocycline

## 510(k) Submission Information:

| Submitter's Name: | bioMérieux, Inc. |
|----------------------|---------------------------------------------------------------------------------------------------------------------------|
| Address: | 595 Anglum Road<br>Hazelwood, MO 63042 |
| Contact Person: | Craig Buehler<br>Sr. Regulatory Affairs Specialist |
| Phone Number: | 314-731-8358 |
| Fax Number: | 314-731-8689 |
| Date of Preparation: | December 19, 2018 |
| Formal/Trade Name: | VITEK® 2 AST- GN Minocycline (≤ 0.5 – ≥ 32<br>µg/mL) |
| Classification Name: | 21 CFR 866.1645<br>Fully Automated Short-Term Incubation Cycle<br>Antimicrobial Susceptibility System<br>Product Code LON |
| Common Name: | VITEK® 2 AST-GN Minocycline |
| Predicate Device: | VITEK® 2 AST-GN Amikacin (K172731) |

## D. 510(k) Summary:

B.

C.

VITEK® 2 AST-Gram Negative Minocycline is designed for antimicrobial susceptibility testing of Gram Negative bacilli and is intended for use with the VITEK® 2 and VITEK® 2 Compact Systems as a laboratory aid in the determination of in vitro susceptibility to antimicrobial agents. VITEK® 2 AST-Gram Negative Minocycline is a quantitative test. Minocycline has been shown to be active against most strains of the microorganisms listed below, according to the FDA label for this antimicrobial.

Active in vitro and in clinical infections: Acinetobacter spp.

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Klebsiella (Enterobacter) aerogenes Escherichia coli Klebsiella spp.

The VITEK® 2 Gram-negative Susceptibility Card is intended for use with the VITEK® 2 Systems in clinical laboratories as an in vitro test to determine the susceptibility of clinically significant aerobic Gram-negative bacilli to antimicrobial agents when used as instructed.

The antimicrobial presented in VITEK® 2 AST-GN Cards is in concentrations equivalent by efficacy to standard method concentrations in mcg/ml. The VITEK® 2 AST Cards are essentially miniaturized versions of the doubling dilution technique for determining the minimum inhibitory concentration (MIC) microdilution methodology.

The isolate to be tested is diluted to a standardized concentration in 0.45 - 0.50% saline before being used to rehydrate the antimicrobial medium within the card. The VITEK® 2 automatically fills, seals and places the card into the incubator/reader. The VITEK® 2 Compact has a manual filling and sealing operation. The VITEK® 2 monitors the growth of each well in the card over a defined period of time (up to 18 hours). At the completion of the incubation cycle, a report is generated that contains the MIC value along with the interpretive category result for each antimicrobial contained on the card.

VITEK® 2 AST-GN Minocycline demonstrated substantially equivalent performance when compared with the CLSI broth microdilution reference method, as defined in the FDA Class II Special Controls Guidance Document: Antimicrobial Susceptibility Test (AST) Systems; Guidance for Industry and FDA (Issued August 28, 2009).

The Premarket Notification 510(k) presents data in support of VITEK® 2 AST-GN Minocycline. An external evaluation was conducted with fresh and stock clinical isolates, as well as a set of challenge strains. The external evaluations were designed to confirm the acceptability of VITEK® 2 AST-GN Minocycline by comparing its performance with the CLSI broth microdilution reference method incubated at 16-20 hours (20-24 hours for Acinetobacter species). The data is representative of performance on both the VITEK® 2 and VITEK® 2 Compact instrument platforms. VITEK® 2 AST-GN Minocycline demonstrated acceptable performance of 97.0% overall Essential Agreement and 93.7% overall Category Agreement with the reference method. Reproducibility and Quality Control demonstrated acceptable results.

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March 7, 2019

bioMérieux, Inc. Craig Buehler Sr. Regulatory Affairs Specialist 595 Anglum Road Hazelwood, Missouri 63042

### Re: K183551

Trade/Device Name: VITEK 2 AST-Gram Negative Minocycline (< 0.5 -> 32 ug/mL) Regulation Number: 21 CFR 866.1645 Regulation Name: Fully automated short-term incubation cycle antimicrobial susceptibility system Regulatory Class: Class II Product Code: LON, LTW, LTT Dated: December 19, 2018 Received: December 20, 2018

Dear Craig Buehler:

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 (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 located 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.

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

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803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.html; 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 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm.

For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). 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 (http://www.fda.gov/DICE) for more information or contact DICE by email ([e-mail]) or phone [phone] or 301-796-7100).

Sincerely,

for

Uwe Scherf, Ph.D. Director Division of Microbiology Devices Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health

Enclosure