(161 days)
The MicroScan® Dried Gram-Negative MIC/Combo Panel is used to determine quantitative and/or qualitative antimicrobial agent susceptibility of colonies grown on solid media of rapidly growing aerobic and facultative anaerobic gram-negative bacilli. After inoculation, panels are incubated for 16 - 20 hours at 35°C +/- 1°C in a non-CO2 incubator, and read either visually or with MicroScan instrumentation. according to the Package Insert.
This particular submission is for the addition of the antimicrobial Ertapenem at concentrations of 0.002 to 32 mcg/ml to the test panel.
The gram-negative organisms which may be used for Ertapenem susceptibility testing in this panel are:
Citrobacter freundii Citrobacter koseri Enterobacter aerogenes Enterobacter cloacae Escherichia coli Klebsiella oxytoca (excluding ESBL producing strains) Klebsiella pneumoniae Morganella morganii Proteus mirabilis Proteus vulgaris Serratia marcescens
MicroScan® Dried Gram-Negative MIC/Combo Panels are designed for use in determining quantitative and/or qualitative antimicrobial agent susceptibility of colonies grown on solid media of rapidly growing aerobic and facultative anaerobic Gram-Negative bacilli.
The antimicrobial susceptibility tests are miniaturizations of the broth dilution susceptibility test that have been diluted in broth and dehydrated. Various antimicrobial agents are diluted in broth to concentrations bridging the range of clinical interest. Panels are rehydrated with water after inoculation with a standardized suspension of the organism. After incubation in a non-CO2 incubator for 16-20 hours, the minimum inhibitory concentration (MIC) for the test organism is read by determining the lowest antimicrobial concentration showing inhibition of growth.
This 510(k) summary describes the MicroScan® Dried Gram-Negative MIC/Combo Panels with Ertapenem, an antimicrobial susceptibility test system.
1. Table of Acceptance Criteria and Reported Device Performance:
| Acceptance Criteria | Reported Device Performance |
|---|---|
| Overall Essential Agreement (compared to NCCLS frozen Reference Panel) | >97% for Ertapenem |
| Inoculum and Instrument Reproducibility | Acceptable reproducibility and precision for Ertapenem (with Turbidity and Prompt inoculum methods, and autoSCAN-4 and WalkAway® instruments) |
| Quality Control Testing | Acceptable results for Ertapenem |
2. Sample Size Used for the Test Set and Data Provenance:
The document does not explicitly state the exact sample size for the test set in terms of the number of isolates. However, it mentions that the external evaluation was conducted with:
- Fresh and stock Efficacy isolates
- Stock Challenge strains
The data provenance is not specified regarding the country of origin. The study was a comparison to an NCCLS frozen Reference Panel, suggesting a controlled, laboratory-based evaluation. It is a retrospective evaluation, as it uses existing isolates and challenge strains.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications of Those Experts:
The document does not specify the number or qualifications of experts used to establish the ground truth. It states that Challenge strains were compared to "Expected Results determined prior to the evaluation," and the primary comparison was against an "NCCLS frozen Reference Panel." This implies that the ground truth was established by a reference method rather than expert consensus on individual cases from a test set.
4. Adjudication Method for the Test Set:
No adjudication method is mentioned. The performance is assessed by direct comparison of the device's results to those of the NCCLS frozen Reference Panel.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done:
No, an MRMC comparative effectiveness study was not done. This study focuses on the agreement of the device with a reference method, not on human reader performance with or without AI assistance.
6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) was done:
Yes, this was a standalone performance study. The MicroScan® Dried Gram-Negative MIC/Combo Panel is an automated or semi-automated system designed to determine susceptibility, and its performance was evaluated against a reference standard without direct human intervention in the interpretation phase for the purposes of the study measurement. While human interaction is involved in setting up the test and potentially reading panels (visually or via instrumentation), the performance being measured is of the device's ability to produce an MIC value or categorization, not the human interpretation of that value.
7. The Type of Ground Truth Used:
The primary ground truth used was the results from an NCCLS frozen Reference Panel. Additionally, for challenge strains, "Expected Results determined prior to the evaluation" served as the ground truth. This indicates a reference standard method was used as the ground truth.
8. The Sample Size for the Training Set:
The document does not specify a training set or its sample size. This type of submission (for a diagnostic device, especially for an AST system) typically focuses on validation against a reference standard as opposed to a machine learning model that undergoes explicit training.
9. How the Ground Truth for the Training Set was Established:
As no training set is described, the method for establishing its ground truth is not applicable.
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510(k) Summary
510(k) Submission Information:
| Device Manufacturer: | Dade Behring, Inc. |
|---|---|
| Contact name: | Cynthia Van Duker, Regulatory Affairs Manager |
| Fax: | 916-374-3144 |
| Date prepared: | August 26, 2003 |
| Product Name: | Microdilution Minimum Inhibitory Concentration (MIC) Panels |
| Trade Name: | MicroScan® Dried Gram-Negative MIC/Combo Panels |
| Intended Use: | To determine antimicrobial agent susceptibility |
| 510(k) Notification: | New antimicrobial - Ertapenem |
| Predicate device: | MicroScan Dried Gram-Negative and Gram-Positive MIC/Combo Panels |
510(k) Summary:
MicroScan® Dried Gram-Negative MIC/Combo Panels are designed for use in determining quantitative and/or qualitative antimicrobial agent susceptibility of colonies grown on solid media of rapidly growing aerobic and facultative anaerobic Gram-Negative bacilli.
The antimicrobial susceptibility tests are miniaturizations of the broth dilution susceptibility test that have been diluted in broth and dehydrated. Various antimicrobial agents are diluted in broth to concentrations bridging the range of clinical interest. Panels are rehydrated with water after inoculation with a standardized suspension of the organism. After incubation in a non-CO2 incubator for 16-20 hours, the minimum inhibitory concentration (MIC) for the test organism is read by determining the lowest antimicrobial concentration showing inhibition of growth.
The proposed MicroScan® Dried Gram-Negative MIC/Combo Panel demonstrated substantially equivalent performance when compared with an NCCLS frozen Reference Panel, as defined in the FDA document "Class II Special Controls Guidance Document: Antimicrobial Susceptibility Test (AST) Systems; Guidance for Industry and FDA", dated February 5, 2003. The Premarket Notification (510[k]) presents data in support of the MicroScan® Dried Gram-Negative MIC/Combo Panel with Ertapenem.
The external evaluation was conducted with fresh and stock Efficacy isolates and stock Challenge strains. The external evaluations were designed to confirm the acceptability of the proposed Dried Gram-Negative Panel by comparing its performance with an NCCLS frozen Reference panel. Challenge strains were compared to Expected Results determined prior to the evaluation. The Dried Gram-Negative Panel demonstrated acceptable performance with an overall Essential Agreement of >97% for Ertapenem when compared with the frozen Reference panel.
Inoculum and instrument reproducibility testing demonstrated acceptable reproducibility and precision with Ertapenen, regardless of which inoculum method (i.e., Turbidity and Prompt), or instrument (autoSCAN-4 and WalkAway®) was used.
Quality Control testing demonstrated acceptable results for Ertapenem
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/1/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized eagle with three stripes extending from its back, representing the department's commitment to health, human services, and well-being. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" is arranged in a circular pattern around the eagle.
Public Health Service
FEB 1 0 2004
Food and Drug Administratio 2098 Gaither Road Rockville MD 20850
Ms. Cynthia Van Duker Regulatory Affairs Manager Dade MicroScan, Inc. l 584 Enterprise Blvd. West Sacramento, CA 95691
Re: K032706
Trade/Device Name: MicroScan® Dried Gram-Negative MIC/Combo Panels with Ertapenem (0.002 - 32 mcq/ml) Regulation Number: 21 CFR 866.1640 Regulation Name: Antimicrobial susceptibility test powder Regulatory Class: Class II Product Code: JWY; LTT; LTT; LTW Dated: December 4, 2003 Received: December 5, 2003
Dear Ms. Van Duker:
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 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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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,
Salamat
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
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Indications for Use
510(k) Number (if known): K032706
Device Name: MicroScan® Dried Gram-Negative MIC/Combo Panels with Ertapenem (0.002 - 32 mcg/ml)
Indications For Use:
The MicroScan® Dried Gram-Negative MIC/Combo Panel is used to determine quantitative and/or qualitative antimicrobial agent susceptibility of colonies grown on solid media of rapidly growing aerobic and facultative anaerobic gram-negative bacilli. After inoculation, panels are incubated for 16 - 20 hours at 35°C +/- 1°C in a non-CO2 incubator, and read either visually or with MicroScan instrumentation. according to the Package Insert.
This particular submission is for the addition of the antimicrobial Ertapenem at concentrations of 0.002 to 32 mcg/ml to the test panel.
The gram-negative organisms which may be used for Ertapenem susceptibility testing in this panel are:
Citrobacter freundii Citrobacter koseri Enterobacter aerogenes Enterobacter cloacae Escherichia coli Klebsiella oxytoca (excluding ESBL producing strains) Klebsiella pneumoniae Morganella morganii Proteus mirabilis Proteus vulgaris Serratia marcescens
Prescription Use V (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)
Luddi. Cook
ivision Sign-Off
Page 1 of 1
Office of In Vitro Diagnostic Device Evaluation and Safety
510(k) K032706
§ 866.1640 Antimicrobial susceptibility test powder.
(a)
Identification. An antimicrobial susceptibility test powder is a device that consists of an antimicrobial drug powder packaged in vials in specified amounts and intended for use in clinical laboratories for determining in vitro susceptibility of bacterial pathogens to these therapeutic agents. Test results are used to determine the antimicrobial agent of choice in the treatment of bacterial diseases.(b)
Classification. Class II (performance standards).