K Number
K040716
Device Name
BD PHOENIX AUTOMATED MICROBIOLOGY SYSTEM-PENICILLIN (GP) 0.0625-32 UG/ML
Date Cleared
2004-05-14

(56 days)

Product Code
Regulation Number
866.1645
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdparty
Intended Use
The BD Phoenix™ Automated Microbiology System is intended for in vitro quantitative determination of susceptibility by minimal inhibitory concentration (MC) of most Gram-negative aerobic and facultative anaerobic bacteria isolates from pure culture for Enterobacteriaceae and Non-Enterobacteriaceae land most Gram-positive bacteria isolates from pure culture belonging to the genera Staphylococcus and Enterococcus. This premarket notification is for the addition of the antimicrobial agent penicillin at concentrations of 0.0625-32 µg/mL to Gram Positive ID/AST or AST only Phoenix panels. Penicillin has been shown to be active in viro against most strains of microorganisms listed below, as described in the FDA-approved package insert for this antimicrobial agent. Active In Vitro and in Clinical Infections Against: Active In Vitro Against: Staphylococcus spp. (except penicillinase-producing strains)
Device Description
The BD Phoenix Automated Microbiology System (Phoenix System) is an automated system for the rapid identification (ID) and antimicrobial susceptibility testing (AST) of clinically relevant bacterial isolates. The system includes the following components: - BD Phoenix instrument and software. . - BD Phoenix panels containing biochemicals for organism ID testing and antimicrobial agents . or AST determinations. - BD Phoenix ID Broth used for performing ID tests and preparing AST Broth inoculum. . - BD Phoenix AST Broth used for performing AST tests only. . - BD Phoenix AST Indicator solution added to the AST Broth to aid in bacterial growth . determination. The Phoenix panel is a sealed and self-inoculating molded polystyrene tray with 136 micro-wells containing dried reagents. Organisms for susceptibility testing must be a pure culture and preliminarily identified as a Gram-negative or Gram-positive isolate. For each isolate, an inoculation equivalent to a 0.5 McFarland standard is prepared in Phoenix ID broth. The Phoenix AST method is a broth based microdilution test. The Phoenix System utilizes a redox indicator for the detection of organism growth in the presence of an antimicrobial agent. Measurements of changes to the indicator as well as bacterial turbidity are used in the determination of bacterial growth. Each AST panel configuration contains several antimicrobial agents with a wide range of two-fold doubling dilution concentrations. The instrument houses the panels where they are continuously incubated at a nominal temperature of 35°C. The instrument takes readings of the panels every 20 minutes. The readings are interpreted to give an identification of the isolate, minimum inhibitory concentration (MIC) values and category interpretations, S, I, R or N (susceptible, intermediate, resistant or not susceptible).
More Information

Not Found

No
The description focuses on automated biochemical and turbidity measurements and does not mention AI or ML.

No
This device is an automated microbiology system used for in vitro diagnostic testing of bacterial isolates, not for direct treatment of patients.

Yes

The device is intended for in vitro quantitative determination of susceptibility of bacterial isolates to antimicrobial agents, which provides information for diagnosing and guiding treatment of infections.

No

The device description clearly outlines multiple hardware components including the BD Phoenix instrument, panels, broths, and indicator solution, in addition to the software.

Based on the provided text, the device is indeed an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use/Indications for Use: The very first sentence explicitly states "The BD Phoenix™ Automated Microbiology System is intended for in vitro quantitative determination of susceptibility...". The term "in vitro" is a key indicator of an IVD.
  • Device Description: The description details a system that analyzes biological samples (bacterial isolates from pure culture) outside of the living organism, using reagents and instruments to determine characteristics (identification and antimicrobial susceptibility). This aligns with the definition of an IVD.
  • Components: The components listed (panels with biochemicals and antimicrobial agents, broths, indicator solution) are all typical of IVD systems used for microbial testing.
  • Methodology: The description of the broth based microdilution test and the use of a redox indicator for detecting bacterial growth are standard techniques used in IVD microbiology testing.

Therefore, the BD Phoenix™ Automated Microbiology System, as described, clearly falls under the category of an In Vitro Diagnostic device.

N/A

Intended Use / Indications for Use

The BD PhoenixTM Automated Microbiology System is intended for the rapid identification and in vitro antimicrobial susceptibility testing of isolates from pure culture of most aerobic and facultative anaerobic Gram-negative and Gram-positive bacteria of human origin.

The BD Phoenix™ Automated Microbiology System is intended for in vitro quantitative determination of I his be filled in septibility by minimal inhibitory concentration (MC) of most Gram-negative acrobic and facultative anaerobic bacteria isolates from pure culture for Enterobacteriaceae and Non-Enterobacteriaceae land most Gram-positive bacteria isolates from pure culture belonging to the genera Staphylococcus and Enterococcus.

This premarket notification is for the addition of the antimicrobial agent penicillin at concentrations of 0.0625-32 µg/mL to Gram Positive ID/AST or AST only Phoenix panels. Penicillin has been shown to be active in viro against most strains of microorganisms listed below, as described in the FDA-approved package insert for this antimicrobial agent.

Active In Vitro and in Clinical Infections Against:
Active In Vitro Against: Staphylococcus spp. (except penicillinase-producing strains)

Product codes (comma separated list FDA assigned to the subject device)

LON

Device Description

The BD Phoenix Automated Microbiology System (Phoenix System) is an automated system for the rapid identification (ID) and antimicrobial susceptibility testing (AST) of clinically relevant bacterial isolates. The system includes the following components:

  • BD Phoenix instrument and software. .
  • BD Phoenix panels containing biochemicals for organism ID testing and antimicrobial agents . or AST determinations.
  • BD Phoenix ID Broth used for performing ID tests and preparing AST Broth inoculum. .
  • BD Phoenix AST Broth used for performing AST tests only. .
  • BD Phoenix AST Indicator solution added to the AST Broth to aid in bacterial growth . determination.

The Phoenix panel is a sealed and self-inoculating molded polystyrene tray with 136 micro-wells containing dried reagents. Organisms for susceptibility testing must be a pure culture and preliminarily identified as a Gram-negative or Gram-positive isolate. For each isolate, an inoculation equivalent to a 0.5 McFarland standard is prepared in Phoenix ID broth.

The Phoenix AST method is a broth based microdilution test. The Phoenix System utilizes a redox indicator for the detection of organism growth in the presence of an antimicrobial agent. Measurements of changes to the indicator as well as bacterial turbidity are used in the determination of bacterial growth. Each AST panel configuration contains several antimicrobial agents with a wide range of two-fold doubling dilution concentrations.

The instrument houses the panels where they are continuously incubated at a nominal temperature of 35°C. The instrument takes readings of the panels every 20 minutes. The readings are interpreted to give an identification of the isolate, minimum inhibitory concentration (MIC) values and category interpretations, S, I, R or N (susceptible, intermediate, resistant or not susceptible).

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Not Found

Indicated Patient Age Range

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Intended User / Care Setting

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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

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Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Site Reproducibility
Intra- and inter-site reproducibility of this antimicrobial agent in the BD Phoenix System was evaluated at three sites using a panel of Gram-positive isolates. Each site tested the isolates in triplicate on three different days using one lot of Gram Positive Phoenix panels containing this antimicrobial agent and associated reagents.
The results of the study demonstrate for the this antimicrobial agent there was an overall intra-site reproducibility of greater than 90% and an overall inter-site reproducibility greater than 95% for the Gram-positive isolates tested.

Clinical Studies
Clinical, stock and challenge isolates were tested across multiple geographically diverse sites across the United States to demonstrate the performance of the Phoenix antimicrobial susceptibility test with the Gram Positive Phoenix Panel format containing this antimicrobial agent. Phoenix System results for Challenge set isolates were compared to the expected results. Phoenix System results for clinical isolates were compared to the results obtained from the NCCLS reference broth microdilution method.

The performance of the Phoenix System was assessed by calculating Essential Agreement (EA) and Category Agreement (CA) to expected/reference results for all isolates tested. Essential Agreement (EA) occurs when the BD Phoenix™ Automated Microbiology System agrees exactly or within ± one two-fold dilution to the reference result. Category Agreement (CA) occurs when the BD Phoenix™ Automated Microbiology System agrees with the reference method with respect to the FDA categorical interpretive criteria (susceptible, intermediate, resistant or not susceptible).

Table 1 summarizes the performance for the isolates tested in this study.
Performance of BD Phoenix System for Gram-Positive Organisms by Drug Table 1:
Antimicrobial: Penicillin
The rest of the table content is unreadable.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Essential Agreement (EA) occurs when the BD Phoenix™ Automated Microbiology System agrees exactly or within ± one two-fold dilution to the reference result. Category Agreement (CA) occurs when the BD Phoenix™ Automated Microbiology System agrees with the reference method with respect to the FDA categorical interpretive criteria (susceptible, intermediate, resistant or not susceptible).

For intra-site reproducibility: greater than 90%
For inter-site reproducibility: greater than 95%

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

VITEK® System (PMA No. N50510), K020321, K020323, K020322

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 866.1645 Fully automated short-term incubation cycle antimicrobial susceptibility system.

(a)
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.(b)
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.”

0

MAY 14 2004510(k) SUMMARY
SUBMITTED BY:Becton, Dickinson and Company
7 Loveton Circle
Sparks, MD 21152
Phone: 410-316-4287
Fax: 410-316-4499
CONTACT NAME:Monica Evelyn Giguere,
RA Specialist
DATE PREPARED:March 18, 2004
DEVICE TRADE NAME:BD PhoenixTM Automated Microbiology System --
Penicillin 0.0625-32 µg/mL
DEVICE COMMON NAME:Antimicrobial susceptibility test system-short incubation
DEVICE CLASSIFICATION:Fully Automated Short-Term Incubation Cycle Antimicrobial
Susceptibility Device, 21 CFR 866.1645
PREDICATE DEVICES:VITEK® System (PMA No. N50510) and BD PhoenixTM
Automated Microbiology System with Gatifloxacin (K020321,
May 23, 2002), Ofloxacin (K020323, April 14, 2002), and
Levofloxacin (K020322, March 27, 2002).
INTENDED USE:The BD PhoenixTM Automated Microbiology System is
intended for the rapid identification and in vitro antimicrobial
susceptibility testing of isolates from pure culture of most
aerobic and facultative anaerobic Gram-negative and Gram-
positive bacteria of human origin.

DEVICE DESCRIPTION:

The BD Phoenix Automated Microbiology System (Phoenix System) is an automated system for the rapid identification (ID) and antimicrobial susceptibility testing (AST) of clinically relevant bacterial isolates. The system includes the following components:

  • BD Phoenix instrument and software. .
  • BD Phoenix panels containing biochemicals for organism ID testing and antimicrobial agents . or AST determinations.
  • BD Phoenix ID Broth used for performing ID tests and preparing AST Broth inoculum. .
  • BD Phoenix AST Broth used for performing AST tests only. .
  • BD Phoenix AST Indicator solution added to the AST Broth to aid in bacterial growth . determination.

1

The Phoenix panel is a sealed and self-inoculating molded polystyrene tray with 136 micro-wells containing dried reagents. Organisms for susceptibility testing must be a pure culture and preliminarily identified as a Gram-negative or Gram-positive isolate. For each isolate, an inoculation equivalent to a 0.5 McFarland standard is prepared in Phoenix ID broth.

The Phoenix AST method is a broth based microdilution test. The Phoenix System utilizes a redox indicator for the detection of organism growth in the presence of an antimicrobial agent. Measurements of changes to the indicator as well as bacterial turbidity are used in the determination of bacterial growth. Each AST panel configuration contains several antimicrobial agents with a wide range of two-fold doubling dilution concentrations.

The instrument houses the panels where they are continuously incubated at a nominal temperature of 35°C. The instrument takes readings of the panels every 20 minutes. The readings are interpreted to give an identification of the isolate, minimum inhibitory concentration (MIC) values and category interpretations, S, I, R or N (susceptible, intermediate, resistant or not susceptible).

DEVICE COMPARISON:

The BD Phoenix™ Automated Microbiology System demonstrated substantially equivalent performance when compared with the NCCLS reference broth microdilution method. This premarket notification provides data supporting the use of the BD Phocnix™ Automated Microbiology System Gram positive ID/AST or AST only Phoenix panels with this antimicrobial agent.

SUMMARY OF SUBSTANTIAL EQUIVALENCE TESTING:

The BD Phoenix™ Automated Microbiology System has demonstrated substantially equivalent performance when compared to the NCCLS reference broth microdilution method (AST panels prepared according to NCCLS M7). The system has been evaluated as defined in the FDA Draft guidance document, "Guidance on Review Criteria for Assessment of Antimicrobial Susceptibility Devices", March 8, 2000.

Site Reproducibility

Intra- and inter-site reproducibility of this antimicrobial agent in the BD Phoenix System was cvaluated at three sites using a panel of Gram-positive isolates. Each site tested the isolates in triplicate on three different days using one lot of Gram Positive Phoenix panels containing this antimicrobial agent and associated reagents.

The results of the study demonstrate for the this antimicrobial agent there was an overall intra-site reproducibility of greater than 90% and an overall inter-site reproducibility greater than 95% for the Gram-positive isolates tested.

2

Clinical Studies

Clinical, stock and challenge isolates were tested across multiple geographically diverse sites across the United States to demonstrate the performance of the Phoenix antimicrobial susceptibility test with the Gram Positive Phocnix Panel format containing this antimicrobial agent. Phoenix System results for Challenge set isolates were compared to the expected results. Phoenix System results for clinical isolates were compared to the results obtained from the NCCLS reference broth microdilution method.

The performance of the Phocnix System was assessed by calculating Essential Agreement (EA) and Category Agreement (CA) to expected/reference results for all isolates tested. Essential Agreement (EA) occurs when the BD Phoenix™ Automated Microbiology System agrees exactly or within ± one two-fold dilution to the reference result. Category Agreement (CA) occurs when the BD Phoenix™ Automated Microbiology System agrees with the reference method with respect to the FDA categorical interpretive criteria (susceptible, intermediate, resistant or not susceptible).

Table 1 summarizes the performance for the isolates tested in this study.

Performance of BD Phoenix System for Gram-Positive Organisms by Drug Table 1:

|
Antimicrobi2' | oncentration | LEA L PROPER | THE THE PERSON FOR COLLECTION OF CONSULTION OF CONSULTION OF CONSULTION OF CONSULTION OF CONSULTION OF CHILIP OF COLLEGION OF CHILIP OF CHILIP OF CHILIFORNIA CONTRACT OF CHIL
て | A LANDON T . 17 R M F . LEWIN F . LEWING | |
|-------------------|--------------|-------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------|---|
| I
enicillin | | t Carlo Career (
Acres and | ﺎ ﮨﮯ ﺍﻭﺭ ﺍ
Concession Company of the Resident of the First | 1
BUIL | l |

Conclusions Drawn from Substantial Equivalence Studies

The data collected from the substantial equivalence studies demonstrate that testing on the BD Phoenix™ Automated Microbiology System with this antimicrobial agent is substantially equivalent as outlined in the FDA draft guidance document, "Guidance on Review Criteria for Assessment of Antimicrobial Susceptibility Devices", March 8, 2000. Technological characteristics of this system are substantially equivalent to those used in the VITEK® system, which received approval by the FDA under PMA number N50510 and BD Phoenix™ Automated Microbiology System with Gatifloxacin (K020321, May 23, 2002), Ofloxacin (K020323, April 14, 2002), and Levofloxacin (K020322, March 27, 2002).

3

DEPARTMENT OF HEALTH & HUMAN SERVICES

Image /page/3/Picture/1 description: The image shows a logo for the Department of Health & Human Services. The logo features a stylized eagle with three curved lines representing its wings and tail. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES (USA)" is arranged in a circular pattern around the eagle.

Public Health Service

Food and Drug Administration 2098 Gaither Road Rockville MD 20850

MAY 1 4 2004

Ms. Monica Evelyn Giguere Regulatory Affairs Specialist BD Diagnostics Systems Becton, Dickinson and Company 7 Loveton Circle Sparks, MD 21152

K040716 Re: Trade/Device Name: BD Phoenix™ Automated Microbiology System Penicillin (0.0625-32 µg/mL) - Gram-Positive ID/AST Regulation Number: 21 CFR 866.1645 Regulation Name: Fully Automated Short-Term Incubation Cycle Antimicrobial Susceptibility Devices Regulatory Class: Class II Product Code: LON Dated: March 18, 2004 Received: March 19, 2004

Dear Ms. Gigucre:

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. 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.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such additional controls. Existing major regulations affecting your device can be found in Title 21, Code of Federal Regulations (CFR), Parts 800 to 895. 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 madc a determination that your device complics with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencics. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Parts 801 and 809); and good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820).

4

Page 2

This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.

If you desire specific information about the application of labeling requirements to your device, or questions on the promotion and advertising of your device, please contact the Office of In Vitro Diagnostic Device Evaluation and Safety at (301) 594-3084. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html.

Sincerely yours,

Salazar

Sally A. Hojvat, M.Sc., Ph.D. Director Division of Microbiology Devices Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health

Enclosure

5

INDICATIONS FOR USE

Page 1 of 1

510(k) Number: K040714

Device Name: BD Phoenix™ Automated Microbiology System for use with the antimicrobial agent penicillin (0.0625-32 ug/mL) - Gram-Positive ID/AST or AST only Phoenix Panels.

Indications for Use:

The BD Phoenix™ Automated Microbiology System is intended for in vitro quantitative determination of I his be filled in septibility by minimal inhibitory concentration (MC) of most Gram-negative acrobic and facultative anaerobic bacteria isolates from pure culture for Enterobacteriaceae and Non-Enterobacteriaceae land most Gram-positive bacteria isolates from pure culture belonging to the genera Staphylococcus and Enterococcus.

This premarket notification is for the addition of the antimicrobial agent penicillin at concentrations of 0.0625-32 µg/mL to Gram Positive ID/AST or AST only Phoenix panels. Penicillin has been shown to be active in viro against most strains of microorganisms listed below, as described in the FDA-approved package insert for this antimicrobial agent.

Active In Vitro and in Clinical Infections Against:

Active In Vitro Against: Staphylococcus spp. (except penicillinase-producing strains)

Prescription Use √
(Part 21 CFR 801 Subpart D)

AND/OR

Over-the-Counter Use (21 CFR 807 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

Hazath
Division Sign-Off

Office of in Vitro Diagnostic Device Evaluation and Safety

4640716 510(k)