(39 days)
Not Found
No
The description focuses on automated measurements of turbidity and redox indicators, interpreted based on established criteria, not AI/ML algorithms. The performance studies compare results to reference methods and expected outcomes, not training or validation of an AI/ML model.
No
The device is an in vitro diagnostic (IVD) device used for identifying microorganisms and determining their antimicrobial susceptibility, which supports clinical decision-making but does not directly treat or diagnose a patient's condition.
Yes
The device 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." This process of identifying microorganisms and their susceptibility to antimicrobial agents is a diagnostic activity, as it provides information used to guide treatment decisions for infections.
No
The device description explicitly lists hardware components such as the "BD Phoenix instrument" and "BD Phoenix panels," in addition to the software.
Yes, this device is an IVD (In Vitro Diagnostic).
Here's why:
- Intended Use: The "Intended Use / Indications for Use" section explicitly states that the system is intended for "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 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 human body to provide information about their characteristics (identification and susceptibility to antimicrobial agents). This is the core function of an IVD.
- Testing Method: The description mentions "broth based microdilution test" and the use of "dried reagents" and "biochemicals for organism ID testing and antimicrobial agents." These are all components and methods used in in vitro diagnostic testing.
- Results: The system provides "identification of the isolate, minimum inhibitory concentration (MIC) values and category interpretations (S. I. or R)." These are diagnostic results derived from testing the sample in vitro.
N/A
Intended Use / Indications for Use
The BD Phoenix™ 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 antimicrobial susceptibility by minimal inhibitory concentration (MIC) of most Gram-negative aerobic and facultative anaerobic bacteria isolates from pure culture for Enterobacteriaceae and Non-Enterobacteriaceae and 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 moxifloxacin at concentrations of 0.125-8 µg/mL to Gram Positive ID/AST or AST only Phoenix panels. Moxifloxacin 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: Staphylococcus aureus (methicillin-susceptible strains only)
Product codes
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. or R (sensitive, intermediate, or resistant).
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
Not Found
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
Site Reproducibility: Intra- and inter-site reproducibility 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 the antimicrobial agent and associated reagents.
Clinical Studies: Clinical, stock and challenge isolates were tested across multiple geographically diverse sites across the United States. 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.
Summary of Performance Studies
Study Type: Substantial Equivalence Testing, Site Reproducibility, Clinical Studies
Sample Size: 1242 isolates for Moxifloxacin in Clinical Studies.
Key Results:
Site reproducibility: Intra-site reproducibility of greater than 90% and an overall inter-site reproducibility greater than 95% for the Gram-positive isolates tested.
Clinical Studies: Essential Agreement (EA) for Moxifloxacin at 0.125-8 ug/mL was 98.0% (n=1242). Category Agreement (CA) for Moxifloxacin at 0.125-8 ug/mL was 91.0% (n=1242).
Key Metrics
Essential Agreement (EA): 98.0%
Category Agreement (CA): 91.0%
Predicate Device(s)
VITEK® System (PMA No. N50510), K020321, K020323, K020322
Reference Device(s)
Not Found
Predetermined Change Control Plan (PCCP) - All Relevant Information
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.”
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Image /page/0/Picture/0 description: The image shows a sequence of alphanumeric characters, specifically "K031306". The characters are written in a bold, handwritten style, with varying stroke thicknesses. The characters are all connected and are in black against a white background.
BD PHOENIX™ Automated Microbiology System Moxifloxacin - GP
CONFIDENTIAL AND PROPRIETARY
510(k) SUMMARY
| SUBMITTED BY: | Becton, Dickinson and Company
7 Loveton Circle
Sparks, MD 21152
Phone: (410) 316-4778
Fax: 410-316-4499 |
|------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| CONTACT NAME: | Michelle B. Bandy,
Regulatory Affairs Specialist |
| DATE PREPARED: | April 23, 2003 |
| DEVICE TRADE NAME: | BD Phoenix™ Automated Microbiology System –
Moxifloxacin 0.125-8 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 Phoenix™
Automated Microbiology System with Gatifloxacin (K020321,
May 23, 2002), Ofloxacin (K020323, April 14, 2002), and
Levofloxacin (K020322, March 27, 2002). |
| INTENDED USE: | The BD Phoenix™ 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. or R (sensitive, intermediate, or resistant).
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 Phoenix™ 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 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.
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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, and resistant).
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 | Concentration | EA (n) | 'EA (%) | (CA (n) | I CA (%) |
|---|---|---|---|---|---|
| Moxifloxacin | A Comments of the comments of the comments of the control of the consistence of the country of the research and | ||||
| 0.125-8 ug/mL | Company of the program and the program and the county of | ||||
| 1242 | 98.0 | 1242 | 07 0 | ||
| 01.0 |
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).
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Image /page/3/Picture/2 description: The image is a black and white logo for the Department of Health & Human Services. The logo consists of a stylized eagle or bird-like figure with three curved lines representing its body and wings. The bird is facing towards the right. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES U.S.A." is arranged in a circular pattern around the bird.
JUN - 2 2003
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
Ms. Michelle B. Bandy Regulatory Affairs Specialist BD Diagnostics Systems Becton, Dickinson and Company 7 Loveton Circle Sparks, MD 21152-0999
Re: K031306
Trade/Device Name: BD Phoenix™ Automated Microbiology System Moxifloxacin (0.125-8 ug/ml) 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: April 23, 2003 Received: April 24, 2003
Dear Ms. Bandy:
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. Drue, 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. Iisting 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 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 Parts 801 and 809); and good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820).
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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). Other general information on your responsibilities under the Act may be obtained 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 vours.
Steven Putman
Steven I. Gutman, M.D., M.B.A. Director Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health
Enclosure
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Page 1 of 1
510(k) Number: _ K031306
Device Name: BD Phoenix™ Automated Microbiology System for use with the antimicrobial agent moxifloxacin (0.125-8 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 antimicrobial susceptibility by minimal inhibitory concentration (MIC) of most Gram-negative aerobic and facultative anaerobic bacteria isolates from pure culture for Enterobacteriaceae and Non-Enterobacteriaceae and 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 moxifloxacin at concentrations of 0.125-8 µg/mL to Gram Positive ID/AST or AST only Phoenix panels. Moxifloxacin 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: Staphylococcus aureus (methicillin-susceptible strains only)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Freddie H. Poole
ision Sign-Off
Prescription Use (Per 21 CFR 801.109) Office of In Vitro Diagnostic Device Evaluation and Safety
Over-the-Counter Use
510(k) K031306