(77 days)
Not Found
No
The device description and intended use describe a traditional, standardized agar diffusion test method using impregnated paper discs. There is no mention of any computational analysis, image processing, or algorithms that would suggest the use of AI or ML. The interpretation relies on comparing measured zone sizes to established, pre-defined tables.
No
This device is an in vitro diagnostic (IVD) product used to determine the susceptibility of bacteria to Grepafloxacin. Its purpose is to guide therapeutic decisions by providing information about antibiotic effectiveness, not to directly treat a medical condition.
Yes
This device, Antimicrobial Susceptibility Test Discs, is used for "semi-quantitative in vitro susceptibility testing by standardized agar diffusion test procedures" to "determine the susceptibility to Grepafloxacin of a wide range of bacteria." This process helps determine which antimicrobial agent is "most suitable for use in antimicrobial therapy" by categorizing bacteria as susceptible, intermediate, or resistant. This determination is a form of diagnosis, as it identifies a characteristic of the bacteria (susceptibility to a drug) that is crucial for guiding treatment.
No
The device description clearly states that the device is a physical product: "Antimicrobial Susceptibility Test Discs are prepared by impregnating high quality paper with accurately determined amounts of Grepafloxacin... Each Grepafloxacin disc is clearly marked... Grepafloxacin discs are furnished in cartridges of 50 discs each." This indicates a hardware component, not a software-only device.
Based on the provided text, the device is an IVD (In Vitro Diagnostic).
Here's why:
- Intended Use/Indications for Use: The text explicitly states the device is used for "semi-quantitative in vitro susceptibility testing" and "for use in determining the susceptibility to Grepafloxacin of a wide range of bacteria". This clearly indicates the device is used to perform tests on biological samples (bacteria) outside of the living organism.
- Device Description: The description further reinforces this by detailing how the discs are used in "standardized agar diffusion test procedures" with "pure cultures of clinical isolates". This is a classic method used in clinical laboratories for diagnostic purposes.
- Regulatory References: The mention of FDA approval (NDA No. 50-717) and adherence to NCCLS (National Committee for Clinical Laboratory Standards) documents (M2-A6 and M100-S7) are strong indicators that this device is regulated as an IVD. These standards and regulations are specifically for devices used in clinical laboratory testing.
- Purpose: The ultimate goal described is to "determine the agent(s) most suitable for use in antimicrobial therapy" and to classify organisms as "susceptible (S), intermediate (I), or resistant (R)". This information is used to guide clinical decisions regarding patient treatment, which is a core function of IVDs.
Therefore, the description clearly aligns with the definition and purpose of an In Vitro Diagnostic device.
N/A
Intended Use / Indications for Use
Antimicrobial Susceptibility Test Discs are used for semi-quantitative in vitro susceptibility testing by standardized agar diffusion test procedures. Grepafloxacin Sensi-Discs® are intended for use in determining the susceptibility to Grepafloxacin of a wide range of bacteria, including Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus agalactiae, Streptococcus pneumoniae. Streptococcus pyogenes, Citrobacter freundii, Citrobacter (diversus) koseri, Enterobacter aerogenes, Enterobacter cloacae,, Escherichia coli, Haemophilus parainfluenzae, Klebsiella oxytoca, Klebsiella pneumoniae, Morganella morganii, Proteus mirabilis, and Proteus vulgaris. Zone sizes used for interpretation of tests, including control organism limits, were determined by the antimicrobic manufacturer, GlaxoWellcome, Inc., and received FDA approval under NDA No. 50-717.
Use of BBL® Grepafloxacin Sensi-Discs® for in vitro agar diffusion susceptibility testing is indicated when there is a need to determine the susceptibility of bacteria to Grepafloxacin.
Grepafloxacin has been shown to be active against most strains of microorganisms listed below, both in vitro and in clinical infections, as described in the GlaxoWellcome, Inc., package insert for this antimicrobic.
Aerobic Gram-Positive Microorganisms
Streptococcus pneumoniae (penicillin-susceptible strains) Aerobic Gram-Negative Microorganisms
Haemophilus influenzae Moraxella catarrhalis Neisseria gonorrhoeae Other microorganisms Chlamydia trachomatis Mycoplasma pneumoniae
Grepafloxacin exhibits in vitro minimum inhibitory concentrations (MICs) of 1 ug/ml or less against most (≥90%) strains of the microorganisms listed below: however, the safety and effectiveness of Grepafloxacin in treating clinical infections due to these microorganisms have not been established in adequate and well-controlled clinical trials.
Aerobic Gram-Positive Microorganisms (/n Vitro Only)
Staphylococcus aureus (methicillin-susceptible strains) Staphylococcus epidermidis (methicillin-susceptible strains) Streptococcus agalactiae Streptococcus pneumoniae (penicillin-resistant strains) Streptococcus pyogenes
Aerobic Gram-Negative Microorganisms (/n Vitro Only)
Citrobacter freundii Citrobacter (diversus) koseri Enterobacter aerogenes Enterobacter cloacae Escherichia coli Haemophilus parainfluenzae Klebsiella oxytoca Klebsiella pneumoniae Morganella morganii Proteus mirabilis Proteus vulgaris
Product codes
JTN
Device Description
Grepafloxacin Susceptibility Test Discs are prepared by impregnating high quality paper with accurately determined amounts of Grepafloxacin supplied by the manufacturer, GlaxoWellcome, Inc., Research Triangle Park, North Carolina. Each Grepafloxacin disc is clearly marked on both sides with the agent and content. Grepafloxacin discs are furnished in cartridges of 50 discs each. Grepafloxacin cartridges are packed as either a single cartridge in a single box, or in a package containing ten cartridges.
Agar diffusion methods employing dried filter paper discs impregnated with specific concentrations of antimicrobial agents were developed in the 1940's. In order to eliminate or minimize variability in the testing, Bauer et al, developed a standardized procedure in which Mueller Hinton Agar was selected as the test medium.
Various regulatory agencies and standards-writing organizations subsequently published standardized reference procedures based on the Bauer-Kirby method. Among the earliest and most widely accepted of these standardized procedures were those published by the U.S. Food and Drug Administration (FDA) and the World Health Organization (WHO). The procedure was adopted as a consensus standard by the National Committee for Clinical Laboratory Standards (NCCLS) and is periodically updated. The latest NCCLS documents are M2-A6 (1/97) and M100-S7 (1/97).
Discs containing a wide variety of antimicrobial agents are applied to the surface of Mueller Hinton Agar plates for Haemophilus Test Medium Agar for Haemophilus influenzae or Mueller Hinton Agar with 5% Sheep Blood for Streptococcus pneumoniae] inoculated with pure cultures of clinical isolates. Following incubation, the plates are examined and the zones of inhibition surrounding the discs are measured and compared with established zone size ranges for individual antimicrobial agents in order to determine the agent(s) most suitable for use in antimicrobial therapy. The determination as to whether the organism in question is susceptible (S), intermediate (I), or resistant (R) to an antimicrobial agent is made by comparing zone sizes to those found in the respective organism tables of National Committee for Clinical Laboratory Standards (NCCLS) Document M2-A6 ("Performance Standards for Antimicrobial Disk Susceptibility tests - Sixth Edition, Approved Standard", 1/97) and of NCCLS Document M100-S7 ("Performance Standards for Antimicrobial Susceptibility Testing", Seventh Informational Supplement. 1/97).
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
Not Found
Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)
See attached GlaxoWellcome, Inc., product insert section on Susceptibility Tests -Diffusion Techniques for RAXAR™ Tablets (grepafloxacin hydrochloride tablets).
Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)
Not Found
Predicate Device(s)
Reference Device(s)
Not Found
Predetermined Change Control Plan (PCCP) - All Relevant Information
Not Found
§ 866.1620 Antimicrobial susceptibility test disc.
(a)
Identification. An antimicrobial susceptibility test disc is a device that consists of antimicrobic-impregnated paper discs used to measure by a disc-agar diffusion technique or a disc-broth elution technique the in vitro susceptibility of most clinically important bacterial pathogens to antimicrobial agents. In the disc-agar diffusion technique, bacterial susceptibility is ascertained by directly measuring the magnitude of a zone of bacterial inhibition around the disc on an agar surface. The disc-broth elution technique is associated with an automated rapid susceptibility test system and employs a fluid medium in which susceptibility is ascertained by photometrically measuring changes in bacterial growth resulting when antimicrobial material is eluted from the disc into the fluid medium. Test results are used to determine the antimicrobial agent of choice in the treatment of bacterial diseases.(b)
Classification. Class II (performance standards).
0
KY 145 18
Date 12/5/97
FEB 2 3 1998
SUMMARY OF SAFETY AND EFFECTIVENESS
SUBMITTED BY:
Virginia C. Weinknecht Regulatory Affairs Specialist Becton Dickinson Microbiology Systems 7 Loveton Circle Sparks, MD 21152
NAME OF DEVICE:
| Trade Name: | Grepafloxacin, 5 mcg, Sensi-Discs
Catalog Numbers 4331711, 4331712 |
|--------------------------|-----------------------------------------------------------------------|
| Common Name/Description: | Antimicrobial Susceptibility Test Discs |
| Classification Name: | Antimicrobial Susceptibility Test Discs |
| PREDICATE DEVICE: | Other BBL® Sensi-Discs® such as
Ciprofloxacin, 5 mcg, Sensi-Disc® |
DEVICE DESCRIPTION:
INTENDED USE:
Antimicrobial Susceptibility Test Discs are used for semi-quantitative in vitro susceptibility testing by standardized agar diffusion test procedures. Grepafloxacin Sensi-Discs® are intended for use in determining the susceptibility to Grepafloxacin of a wide range of bacteria, including Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus agalactiae, Streptococcus pneumoniae. Streptococcus pyogenes, Citrobacter freundii, Citrobacter (diversus) koseri, Enterobacter aerogenes, Enterobacter cloacae,, Escherichia coli, Haemophilus parainfluenzae, Klebsiella oxytoca, Klebsiella pneumoniae, Morganella morganii, Proteus mirabilis, and Proteus vulgaris. Zone sizes used for interpretation of tests, including control organism limits, were determined by the antimicrobic manufacturer, GlaxoWellcome, Inc., and received FDA approval under NDA No. 50-717.
1
INDICATIONS FOR USE:
Use of BBL® Grepafloxacin Sensi-Discs® for in vitro agar diffusion susceptibility testing is indicated when there is a need to determine the susceptibility of bacteria to Grepafloxacin.
Grepafloxacin has been shown to be active against most strains of microorganisms listed below, both in vitro and in clinical infections, as described in the GlaxoWellcome, Inc., package insert for this antimicrobic.
Aerobic Gram-Positive Microorganisms
Streptococcus pneumoniae (penicillin-susceptible strains) Aerobic Gram-Negative Microorganisms
Haemophilus influenzae Moraxella catarrhalis Neisseria gonorrhoeae Other microorganisms Chlamydia trachomatis Mycoplasma pneumoniae
Grepafloxacin exhibits in vitro minimum inhibitory concentrations (MICs) of 1 ug/ml or less against most (≥90%) strains of the microorganisms listed below: however, the safety and effectiveness of Grepafloxacin in treating clinical infections due to these microorganisms have not been established in adequate and well-controlled clinical trials.
Aerobic Gram-Positive Microorganisms (/n Vitro Only)
Staphylococcus aureus (methicillin-susceptible strains) Staphylococcus epidermidis (methicillin-susceptible strains) Streptococcus agalactiae Streptococcus pneumoniae (penicillin-resistant strains) Streptococcus pyogenes
Aerobic Gram-Negative Microorganisms (/n Vitro Only)
Citrobacter freundii Citrobacter (diversus) koseri Enterobacter aerogenes Enterobacter cloacae Escherichia coli Haemophilus parainfluenzae Klebsiella oxytoca Klebsiella pneumoniae Morganella morganii Proteus mirabilis Proteus vulgaris
2
Date 12/5/97
SUMMARY OF SAFETY AND EFFECTIVENESS
FEB 2 3 1998
SUBMITTED BY:
Virginia C. Weinknecht Regulatory Affairs Specialist Becton Dickinson Microbiology Systems 7 Loveton Circle Sparks, MD 21152
NAME OF DEVICE:
| Trade Name: | Grepafloxacin, 5 mcg, Sensi-Discs
Catalog Numbers 4331711, 4331712 |
|--------------------------|-----------------------------------------------------------------------|
| Common Name/Description: | Antimicrobial Susceptibility Test Discs |
| Classification Name: | Antimicrobial Susceptibility Test Discs |
| PREDICATE DEVICE: | Other BBL® Sensi-Discs® such as
Ciprofloxacin, 5 mcg, Sensi-Disc® |
DEVICE DESCRIPTION:
INTENDED USE:
Antimicrobial Susceptibility Test Discs are used for semi-quantitative in vitro susceptibility testing by standardized agar diffusion test procedures. Grepafloxacin Sensi-Discs® are intended for use in determining the susceptibility to Grepafloxacin of a wide range of bacteria, including Staphylococcus aureus, Staphylococcus epidermidis. Streptococcus agalactiae, Streptococcus pneumoniae, Streptococcus pyogenes, Citrobacter freundii, Citrobacter (diversus) koseri, Enterobacter aerogenes, Enterobacter cloacae,, Escherichia coli, Haemophilus parainfluenzae, Klebsiella oxytoca, Klebsiella pneumoniae, Morganella morganii, Proteus mirabilis, and Proteus vulgaris. Zone sizes used for interpretation of tests, including control organism limits, were determined by the antimicrobic manufacturer, GlaxoWellcome, Inc., and received FDA approval under NDA No. 50-717.
3
INDICATIONS FOR USE:
Use of BBL® Grepafloxacin Sensi-Discs® for in vitro agar diffusion susceptibility testing is indicated when there is a need to determine the susceptibility of bacteria to Grepafloxacin.
Grepafloxacin has been shown to be active against most strains of microorganisms listed below, both in vitro and in clinical infections, as described in the GlaxoWellcome, Inc., package insert for this antimicrobic.
Aerobic Gram-Positive Microorganisms
Streptococcus pneumoniae (penicillin-susceptible strains) Aerobic Gram-Negative Microorganisms
Haemophilus influenzae Moraxella catarrhalis Neisseria gonorrhoeae
Other microorganisms
Chlamydia trachomatis Mycoplasma pneumoniae
Grepafloxacin exhibits in vitro minimum inhibitory concentrations (MICs) of 1 µg/ml or less against most (≥90%) strains of the microorganisms listed below; however, the safety and effectiveness of Grepafloxacin in treating clinical infections due to these microorganisms have not been established in adequate and well-controlled clinical trials.
Aerobic Gram-Positive Microorganisms (In Vitro Only)
Staphylococcus aureus (methicillin-susceptible strains) Staphylococcus epidermidis (methicillin-susceptible strains) Streptococcus agalactiae Streptococcus pneumoniae (penicillin-resistant strains)
- Streptococcus pyogenes
Aerobic Gram-Negative Microorganisms (/n Vitro Only)
Citrobacter freundii
Citrobacter (diversus) koseri
Enterobacter aerogenes
Enterobacter cloacae
Escherichia coli
Haemophilus parainfluenzae
Klebsiella oxytoca
Klebsiella pneumoniae
Morganella morganii
Proteus mirabilis
Proteus vulgaris
4
PRODUCT DESCRIPTION:
Grepafloxacin Susceptibility Test Discs are prepared by impregnating high quality paper with accurately determined amounts of Grepafloxacin supplied by the manufacturer, GlaxoWellcome, Inc., Research Triangle Park, North Carolina. Each Grepafloxacin disc is clearly marked on both sides with the agent and content. Grepafloxacin discs are furnished in cartridges of 50 discs each. Grepafloxacin cartridges are packed as either a single cartridge in a single box, or in a package containing ten cartridges.
Agar diffusion methods employing dried filter paper discs impregnated with specific concentrations of antimicrobial agents were developed in the 1940's. In order to eliminate or minimize variability in the testing, Bauer et al, developed a standardized procedure in which Mueller Hinton Agar was selected as the test medium.
Various regulatory agencies and standards-writing organizations subsequently published standardized reference procedures based on the Bauer-Kirby method. Among the earliest and most widely accepted of these standardized procedures were those published by the U.S. Food and Drug Administration (FDA) and the World Health Organization (WHO). The procedure was adopted as a consensus standard by the National Committee for Clinical Laboratory Standards (NCCLS) and is periodically updated. The latest NCCLS documents are M2-A6 (1/97) and M100-S7 (1/97).
Discs containing a wide variety of antimicrobial agents are applied to the surface of Mueller Hinton Agar plates for Haemophilus Test Medium Agar for Haemophilus influenzae or Mueller Hinton Agar with 5% Sheep Blood for Streptococcus pneumoniae] inoculated with pure cultures of clinical isolates. Following incubation, the plates are examined and the zones of inhibition surrounding the discs are measured and compared with established zone size ranges for individual antimicrobial agents in order to determine the agent(s) most suitable for use in antimicrobial therapy. The determination as to whether the organism in question is susceptible (S), intermediate (I), or resistant (R) to an antimicrobial agent is made by comparing zone sizes to those found in the respective organism tables of National Committee for Clinical Laboratory Standards (NCCLS) Document M2-A6 ("Performance Standards for Antimicrobial Disk Susceptibility tests - Sixth Edition, Approved Standard", 1/97) and of NCCLS Document M100-S7 ("Performance Standards for Antimicrobial Susceptibility Testing", Seventh Informational Supplement. 1/97).
5
PERFORMANCE DATA:
:
:
(
See attached GlaxoWellcome, Inc., product insert section on Susceptibility Tests -Diffusion Techniques for RAXAR™ Tablets (grepafloxacin hydrochloride tablets).
.
6
Image /page/6/Picture/1 description: The image is a black and white logo for the U.S. Department of Health & Human Services. The logo features a stylized image of an eagle with three lines forming its body and wings. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular pattern around the eagle. The text is in all capital letters.
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
Ms. Virginia C. Weinknecht Regulatory Affairs Specialist Becton Dickinson Microbiology Systems 7 Loveton Circle Sparks, Maryland 21152
FEB 2 3 1998
Re: K974578 Grepafloxacin, 5 mcg, Sensi-Discs Trade Name: Catalog Number 4331711, 4331712 Regulatory Class: II Product Code: JTN December 5, 1997 Dated: Received: December 8, 1997---------------------------------------------------------------------------------------------------------------------------------------------------
Dear Ms. Weinknecht:
We have reviewed your Section 510 (k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). 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 (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirement, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic (QS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal Laws or Regulations.
7
Page 2
Under the Clinical Laboratory Improvement Amendments of 1988 (CLIA-88), this device may require a CLIA complexity categorization. To determine if it does, you should contact the Centers for Disease Control and Prevention (CDC) at (770)488-7655.
This letter will allow you to begin marketing your device as described in your 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 advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4588. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll free number (800) 638-2041 or at (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html"
Sincerely yours,
Steven Putman
Steven I. Gutman, M.D., M.B.A. Director Division of Clinical Laboratory Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
8
Page 1 of 1 510(k) Number (if known): ____________________________________________________________________________________________________________________________________________________
Device Name: Grepafloxacin, 5 mg, Sensi-Disc®
Indications For Use:
Use of BBL Grepafloxacin Sensi-Discs® for in vitro agar diffusion susceptibility testing is indicated when there is a need to determine the susceptibility of bacteria to Grepafloxacin. Grepafloxacin has been shown to be active against most strains of microorganisms listed below, both in vitro and in clinical infections, as described in the GlaxoWellcome package insert for this antimicrobic.
Aerobic Gram-Positive Microorganisms
Streptococcus pneumoniae (penicillin-susceptible strains) Aerobic Gram-Negative Microorganisms ------------------Haemophilus influenzae Neisseria gonorthoeae Moraxella catarrhalis Other microorganisms:
Chlamvdia trachomatis
Mycoplasma pneumoniae
Grepafloxacin exhibits in vitro minimum inhibitory concentrations (MICs) of 1ug/ml or less against most (د90%) strains of the following microorganisms; however, the safety and effectiveness of grepafloxacin in treating clinical infections due to these microorganisms have not been established in adequate and well-controlled clinical trials.
Aerobic Gram-Positive Microorganisms (In Vitro Only) Staphylococcus aureus (methicillin-susceptible strains) Staphylococcus epidermidis (methicillin-susceptible strains) Streptococcus agalactiae Streptococcus pneumoniae (penicillin-resistant strains) Streptococcus pyogenes Aerobic Gram-Negative Microorganisms (In Vitro Only)
Klebsiella oxytoca Citrobacter freundii Citrobacter (diversus) koseri Klebsiella pneumoniae Morqanella morqanii Enterobacter aerogenes Enterobacter cloacae Proteus vulgaris - -- . - -- -- --Escherichia coli Haemophilus parainfluenzae
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
| Prescription Use
Per 21 CFR 801.109 | OR | Over-The-Counter Use _
Optional Format 1-2-96 |
| ---------------------------------------- | ---- | -------------------------------------------------- |
|---|
(Division Sign-Off)
Division of Clinical Laboratory Devices
| 510(k) Number | |
|---|---|
| --------------- | -- |
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1