KRONUS GLUTAMIC ACID DECARBOXYLASE ANTIBODY KIT by KRONUS MARKET DEVELOPMENT ASSOCIATES, INC.

The KRONUS GADAb RIA Assay Kit is for the semi-quantitative determination of glutamic acid decarboxylase antibody in human serum. The KRONUS GADAb RIA Assay is useful as an aid in the diagnosis of Type I diabetes mellitus (autoimmune mediated diabetes).

Device Description

KRONUS Glutamic Acid Decarboxylase (GADAb) RIA Assay Kit

AI/ML Overview

The provided text is related to a 510(k) premarket notification for a medical device called the "KRONUS Glutamic Acid Decarboxylase (GADAb) RIA Assay Kit." This document is a clearance letter from the FDA, indicating that the device has been deemed substantially equivalent to a legally marketed predicate device.

However, the document does not contain the detailed information required to describe the acceptance criteria and the study that proves the device meets the acceptance criteria as requested in your prompt.

Specifically, the document does not include:

A table of acceptance criteria and reported device performance.
Sample sizes used for the test set or data provenance.
Number of experts or their qualifications, or adjudication methods for ground truth.
Information about MRMC comparative effectiveness studies or effect sizes.
Details on standalone algorithm performance.
The type of ground truth used (e.g., pathology, outcomes data).
Sample size for the training set or how ground truth was established for the training set.

The document is a clearance letter and focuses on the regulatory aspects of the FDA's decision, rather than the scientific and statistical details of the performance study. To get the requested information, one would typically need to review the actual 510(k) submission document or the device's Instructions for Use (IFU) or package insert, which would contain the performance study details.

Summary

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Image /page/0/Picture/1 description: The image shows the logo for the Department of Health & Human Services. The logo consists of a stylized eagle with three wavy lines representing the feathers. The eagle is enclosed in a circle with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" around the perimeter of the circle. The text is in all capital letters and is arranged in a circular fashion to match the shape of the circle.

NOV - 4 2005

Food and Drug Administration 2098 Gaither Road Rockville MD 20850

Ms. Heather Viele Director of Technical Affairs KRONUS, Inc. Boise Research Center 12554 West Bridger Street Suite 108 Boise, ID 83713

Rc: K051061

Trade/Device Name: KRONUS Glutamic Acid Decarboxylase (GADAb) RIA Assay Kit Regulation Number: 21 CFR 866.5660 Regulation Name: Multiple autoantibodies immunological test system Regulatory Class: Class II Product Code: NWG Dated: September 19, 2005 Received: September 20, 2005

Dear Ms. Viele:

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 docs 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).

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.

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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 (240) 276-0484. 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/industry/support/index.html

Sincerely yours,

Robert Beckerh

Robert L. Becker, Jr., MD, PH.D Director Division of Immunology and Hematology Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health

Enclosure

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K051061 KRONUS Glutamic Acid Decarboxylase Antibody (GADAb) RIA

Indications for Use

510(k) Number (if known): K051061

Device Name:

KRONUS Glutamic Acid Decarboxylase (GADAb) RIA Assay Kit

Indications for Use Statement:

(Please Do Not Write Below This Line -- Continue On another Page If Needed)

Concurrence of CDRH, Office of Device Evaluation (ODE)

Prescription Use X (Pursuant to 21 CFR 801.109)

Over-the-counter Use

Josephine Bautista

Division Sign Off

Office of In Vitro Diagnostic Device Evaluation and Safety

510(K)_KO5106

Regulation Number and Section

§ 866.5660 Multiple autoantibodies immunological test system.

(a)
Identification. A multiple autoantibodies immunological test system is a device that consists of the reagents used to measure by immunochemical techniques the autoantibodies (antibodies produced against the body's own tissues) in serum and other body fluids. Measurement of multiple autoantibodies aids in the diagnosis of autoimmune disorders (disease produced when the body's own tissues are injured by autoantibodies).(b)
Classification. Class II (performance standards).