Liofilchem MIC Test Strip (MTS)- Ceftolozane/Tazobactam 0.016/4 - 256/4 mcg/mL
Applicant
Liofilchem s.r.l.
Product Code
JWY · Microbiology
Decision Date
Jul 12, 2016
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 866.1640
Device Class
Class 2
Intended Use
The Liofilchem MIC Test Strip (MTS) is a quantitative method intended for the in vitro determination of antimicrobial susceptibility of non-fastidious Gram negative and Gram positive aerobic bacteria (for example, Enterobacteriaceae, Pseudomonas, Enterococcus and Staphylococus species) and fastidious bacteria (for example, anaerobes, Haemophilus and Streptococcus species and N. gonorhoeae). MTS consists of specialized paper impregnated with a pre-defined concentration gradient of an antimicrobial agent, which is used to determine the minimum inhibitory concentration (MIC) in ug/mL of antimicrobial agents against bacteria as tested on agar media using overnight incubation and manual reading procedures. The purpose of this 510(k) is specifically for the ceftolozane/tazobactam MTS at concentrations of 0.016/4 - 256/4 mcg/mL. Ceftolozane/azobactam has been shown to be active against the following bacteria, both clinically and in vitro according to the FDA label: Enterobacter cloacae Escherichia coli Klebsiella oxytoca Klebsiella pneumoniae Proteus mirabilis Pseudomonas aeruginosa
Device Story
Liofilchem MIC Test Strip (MTS) is a quantitative in vitro diagnostic device for determining antimicrobial susceptibility. Device consists of specialized paper strips impregnated with a predefined concentration gradient of ceftolozane/tazobactam. Used in clinical microbiology laboratories by trained personnel. Procedure involves placing the strip on inoculated agar media, followed by overnight incubation. The MIC is determined by manual visual inspection of the inhibition ellipse intersection with the strip. Results provide clinicians with quantitative susceptibility data to guide antibiotic therapy selection for bacterial infections. Benefits include standardized, reliable MIC determination for specific pathogens.
Clinical Evidence
Performance evaluated via clinical and challenge studies (n=401 isolates). Combined results showed 95.7% Essential Agreement (EA) and 93.8% Category Agreement (CA) across all isolates. Pseudomonas aeruginosa showed 92.6% EA and 91.6% CA; Enterobacteriaceae showed 97.6% EA and 95.3% CA. Trending analysis indicated a slight bias toward higher MIC values compared to reference broth microdilution. Reproducibility >95%.
Technological Characteristics
Specialized paper strip impregnated with predefined exponential concentration gradient of ceftolozane/tazobactam (15 two-fold dilutions). Manual application to Mueller Hinton agar. Manual reading of inhibition ellipse. No electronic components or software algorithms.
Indications for Use
Indicated for in vitro susceptibility testing of Enterobacter cloacae, E. coli, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis, and Pseudomonas aeruginosa to ceftolozane/tazobactam (0.016/4 - 256/4 µg/mL).
Regulatory Classification
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.
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K163298 — Liofilchem MIC Test Strip (MTS) Ceftazidime 0.016 - 256.0 µg/mL · Liofilchem s.r.l. · Feb 22, 2017
K172542 — Liofilchem MIC Test Strip (MTS)- Tedizolid 0.002 - 32 mg/mL. · Liofilchem s.r.l. · Oct 23, 2017
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Submission Summary (Full Text)
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Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
July 12, 2016
LIOFILCHEM s.r.l. C/O LAURA KOETH LABORATORY SPECIALISTS, INC. 1651-A CROSSINGS PARKWAY WESTLAKE, OH 44145
Re: K161175
Trade/Device Name: Liofilchem MIC Test Strip (MTS) - Ceftolozane/tazobactam 0.016/4 -256/4 mcg/mL Regulation Number: 21 CFR 866.1640 Regulation Name: Antimicrobial susceptibility test powder Regulatory Class: II Product Code: JWY Dated: April 18, 2016 Received: April 26, 2016
Dear Ms. Koeth:
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. 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 Parts 801 and 809); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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If you desire specific advice for your device on our labeling regulations (21 CFR Parts 801 and 809), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638 2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. 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 the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
# Ribhi Shawar -S
For Uwe Scherf, M.Sc., Ph.D. Director Division of Microbiology Devices Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health
Enclosure
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#### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
# Indications for Use
510(k) Number (if known)
#### K161175
#### Device Name
Liofilchem MIC Test Strip (MTS) - Ceftolozane/tazobactam 0.016/4 - 256/4 mcg/mL
#### Indications for Use (Describe)
The Liofilchem MIC Test Strip (MTS) is a quantitative method intended for the in vitro determination of antimicrobial susceptibility of non-fastidious Gram negative and Gram positive aerobic bacteria (for example, Enterobacteriaceae, Pseudomonas, Enterococcus and Staphylococus species) and fastidious bacteria (for example, anaerobes, Haemophilus and Streptococcus species and N. gonorhoeae). MTS consists of specialized paper impregnated with a pre-defined concentration gradient of an antimicrobial agent, which is used to determine the minimum inhibitory concentration (MIC) in ug/mL of antimicrobial agents against bacteria as tested on agar media using overnight incubation and manual reading procedures.
The purpose of this 510(k) is specifically for the ceftolozane/tazobactam MTS at concentrations of 0.016/4 - 256/4 mcg/mL.
Ceftolozane/azobactam has been shown to be active against the following bacteria, both clinically and in vitro according to the FDA label:
Enterobacter cloacae Escherichia coli Klebsiella oxytoca Klebsiella pneumoniae Proteus mirabilis Pseudomonas aeruginosa
Type of Use (Select one or both, as applicable)
> Prescription Use (Part 21 CFR 801 Subpart D)
7 Over-The-Counter Use (21 CFR 801 Subpart C)
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