(51 days)
Not Found
No
The device description and performance studies focus on a standard clinical chemistry assay based on enzymatic reactions and spectrophotometry, with no mention of AI or ML.
No
The device is an in vitro diagnostic assay used for the quantitative determination of ammonia in human plasma for diagnosis, not for treatment or therapy.
Yes
The "Intended Use" section explicitly states that "Ammonia measurements are used in the diagnosis and treatment of severe liver disorders." Additionally, the "Device Description" identifies it as an "in vitro diagnostic assay."
No
The device description clearly states it is an "in vitro diagnostic assay" and describes a chemical reaction and measurement of absorbance, indicating it is a physical test kit or reagent, not 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 assay is "used for the quantitation of ammonia in human plasma." This indicates that it is used to test a sample taken from the human body (in vitro) to provide diagnostic information.
- Device Description: The "Device Description" further clarifies that it is an "in vitro diagnostic assay for the quantitative determination of ammonia in human plasma." It also describes the chemical reactions used to perform the test on the sample.
- Performance Studies: The "Summary of Performance Studies" describes testing performed on the assay itself, comparing its performance to a predicate device (another IVD). This is typical for IVD submissions.
- Predicate Device: The mention of a "Predicate Device(s)" with a K number (K870787) and name (A-GENT® Ammonia assay) strongly suggests that this device is being compared to a previously cleared IVD.
All of these points align with the definition and characteristics of an In Vitro Diagnostic device.
N/A
Intended Use / Indications for Use
The Ammonia assay is used for the quantitation of ammonia in human plasma. Ammonia measurements are used in the diagnosis and treatment of severe liver disorders, such as cirrhosis, hepatitis, and Reye's syndrome.
Product codes
75JIX, JIF
Device Description
Ammonia is an in vitro diagnostic assay for the quantitative determination of ammonia in human plasma. The Ammonia assay is a clinical chemistry assay which utilizes the amination of x-ketoglutarate by ammonia (NH3) along with the concomitant oxidation of NH2DPH. These reactions, catalyzed by glutamate dehydrogenase (GLDH), produce glutamate and NHxDP+ The oxidation of NHxDPH produces a decrease in absorbance at 340 nm which is directly proportional to the concentration of ammonia in the sample.
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)
Comparative performance studies were conducted using the AEROSET™ System. The Ammonia assay method comparison yielded acceptable correlation with the A-GENT Ammonia assay on the ABBOTT SPECTRUM Series II System. The correlation coefficient = 0.9957, slope = 0.971, and Y-intercept = - 2.083 umol/L. Precision studies were conducted using the Ammonia assay. Within-run, between-run, and between-day studies were performed using three levels of control material. The total %CV for Level 1/Panel 103 is 11.7%, 4.0% for Level 2/Panel 104, and 5.5% for Level 3/Panel 105. The Ammonia assay is linear up to 1,574.9 umol/L. The limit of quantitation (sensitivity) of the Ammonia assay is 20.6 umol/L. These data demonstrate that the performance of the Ammonia assay is substantially equivalent to the performance of the A-GENT Ammonia assay on the ABBOTT SPECTRUM Series II System.
Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)
The correlation coefficient = 0.9957, slope = 0.971, and Y-intercept = - 2.083 umol/L. The total %CV for Level 1/Panel 103 is 11.7%, 4.0% for Level 2/Panel 104, and 5.5% for Level 3/Panel 105. The Ammonia assay is linear up to 1,574.9 umol/L. The limit of quantitation (sensitivity) of the Ammonia assay is 20.6 umol/L.
Predicate Device(s)
Reference Device(s)
Not Found
Predetermined Change Control Plan (PCCP) - All Relevant Information
Not Found
§ 862.1065 Ammonia test system.
(a)
Identification. An ammonia test system is a device intended to measure ammonia levels in blood, serum, and plasma, Ammonia measurements are used in the diagnosis and treatment of severe liver disorders, such as cirrhosis, hepatitis, and Reye's syndrome.(b)
Classification. Class I.
0
JUL 22 1998
510(k) Summary
Submitter's Name/Address
Abbott Laboratories 1920 Hurd Drive Irving, Texas 75038
Contact Person Mark Littlefield Section Manager MS 1-8 Regulatory Affairs (972) 518-6062 Fax (972) 753-3367
| Date of Preparation of this Summary: | May 29, 1998 |
|---|---|
| Device Trade or Proprietary Name: | Amm |
| Device Common/Usual Name or Classification Name: | Ammonia |
| Classification Number/Class: | 75JIX/Class I |
This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92.
The assigned 510(k) number is: _______________________________________________________________________________________________________________________________________________
Test Description:
Ammonia is an in vitro diagnostic assay for the quantitative determination of ammonia in human plasma. The Ammonia assay is a clinical chemistry assay which utilizes the amination of x-ketoglutarate by ammonia (NH3) along with the concomitant oxidation of NH2DPH. These reactions, catalyzed by glutamate dehydrogenase (GLDH), produce glutamate and NHxDP+ The oxidation of NHxDPH produces a decrease in absorbance at 340 nm which is directly proportional to the concentration of ammonia in the sample.
Substantial Equivalence:
The Ammonia assay is substantially equivalent to the A-GENT® Ammonia assay (K870787) on the ABBOTT SPECTRUM® Series II™ System.
Ammonia 510(k) May 29, 1998 Ammf.lwp
Section II Page 1
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Both assays yield similar Performance Characteristics.
Similarities:
- Both assays are in vitro clinical chemistry methods. .
- Both assays can be used for the quantitative determination of ammonia. .
- Both assays vield similar clinical results. .
Intended Use:
The Ammonia assay is used for the quantitation of ammonia in human plasma.
Performance Characteristics:
Comparative performance studies were conducted using the AEROSET™ System. The Ammonia assay method comparison yielded acceptable correlation with the A-GENT Ammonia assay on the ABBOTT SPECTRUM Series II System. The correlation coefficient = 0.9957, slope = 0.971, and Y-intercept = - 2.083 umol/L. Precision studies were conducted using the Ammonia assay. Within-run, between-run, and between-day studies were performed using three levels of control material. The total %CV for Level 1/Panel 103 is 11.7%, 4.0% for Level 2/Panel 104, and 5.5% for Level 3/Panel 105. The Ammonia assay is linear up to 1,574.9 umol/L. The limit of quantitation (sensitivity) of the Ammonia assay is 20.6 umol/L. These data demonstrate that the performance of the Ammonia assay is substantially equivalent to the performance of the A-GENT Ammonia assay on the ABBOTT SPECTRUM Series II System.
Conclusion:
The Ammonia assay is substantially equivalent to the A-GENT Ammonia-assay on the ABBOTT SPECTRUM Series II System as demonstrated by results obtained in the studies.
Ammonia 510(k) May 29, 1998 Ammf Jwp
Section II Page 2
2
Image /page/2/Picture/2 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized depiction of an eagle or bird-like figure with three curved lines representing its wings or body. The logo is encircled by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" in a circular arrangement.
Jul 22 1998
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
Mark Littlefield .Section Manager, Regulatory Affairs Abbott Laboratories 1920 Hurd Drive Irving, Texas 75038
Re : K981920 AMM Regulatory Class: I Product Code: JIF Dated: May 29, 1998 Received: June 1, 1998
Dear Mr. Littlefield:
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 The general controls provisions of the Act 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 requirements, 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 In addition, FDA may publish further announcements action. 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.
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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 (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html".
Sincerely yours,
Steven Litman
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
4
510(k) Number (if known):
Device Name:
Indications For Use:
The Ammonia assay is used for the quantitation of ammonia in human plasma. Ammonia measurements are used in the diagnosis and treatment of severe liver disorders, such as cirrhosis, hepatitis, and Reye's syndrome.
(Division Sign-Off)
Division of Cized Laboratory Levices
510(k) Number K9811928
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
______________________________________________________________________________________________________________________________________________________________________________ Concycrence of CDRH, Office of Device Evaluation (ODE) Over-The-Counter Use _________________________________________________________________________________________________________________________________________________________ Prescription Use OR (Per 21 CFR 801.109) (Optional Format 1-2-96)
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