(23 days)
Liquichek anti-mitochondrial control, positive is intended for use as an unassayed quality control to monitor indirect immunofluorescent testing for the detection of mitochondrial autoantibodies.
This product is prepared from human serum with added preservatives. The control is provided in liquid form for convenience.
Here's an analysis of the provided text regarding the acceptance criteria and study for the Liquichek™ Anti-Mitochondrial Control, Positive:
1. Table of Acceptance Criteria and Reported Device Performance
| Acceptance Criteria (Stated Claims) | Reported Device Performance |
|---|---|
| Open vial stability: Analyte stable for 60 days when stored tightly capped at 2 to 8°C. | "Once the control is opened the analyte will be stable for 60 days when stored tightly capped at 2 to 8°C." |
| Shelf life: Control stable for 2 years when stored unopened at 2 to 8°C. | "The control is stable for 2 years when stored unopened at 2-8°C." |
2. Sample Size Used for the Test Set and Data Provenance
The document describes stability studies. While it states that "Stability studies have been performed," it does not specify the sample size used for these tests. It also does not mention the country of origin of the data or whether the study was retrospective or prospective in the context of the stability studies. However, the mention of "Real time studies will be ongoing to support the shelf life of this product" implies a prospective nature for at least part of the shelf-life evaluation.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Their Qualifications
This information is not provided in the document. The product is a quality control material and the performance claim is about its stability, not diagnostic accuracy requiring expert interpretation of results.
4. Adjudication Method for the Test Set
This information is not provided as the device is a quality control material used for monitoring tests, not a diagnostic device requiring adjudication of results on patient samples.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study Was Done
No, a Multi-Reader Multi-Case (MRMC) comparative effectiveness study was not done. This type of study is typically performed for diagnostic devices where human readers interpret medical images or test results, often comparing AI-assisted vs. unassisted human performance. The Liquichek™ Anti-Mitochondrial Control is a quality control material.
6. If a Standalone (Algorithm Only Without Human-in-the-Loop Performance) Was Done
The concept of "standalone" performance (algorithm only) is not applicable to this device. This is a quality control material, not an algorithm or an AI product. Its performance is assessed by its chemical/biological stability over time.
7. The Type of Ground Truth Used
The "ground truth" for the stability studies would be the measured and confirmed stability of the anti-mitochondrial antibodies in the control material over the specified timeframes and storage conditions. This is likely determined through laboratory assays demonstrating consistent performance (e.g., maintaining a certain titer or reactivity level) of the control material over time.
8. The Sample Size for the Training Set
This product is a quality control material. It's not a machine learning model, so the concept of a "training set" does not apply.
9. How the Ground Truth for the Training Set Was Established
As explained above, there is no training set for this type of device.
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KO2YA227
Summary of Safety and Effectiveness Liquichek™ Anti-Mitochondrial Control, Positive
1.0 Submitter
JAN 1 5 2003
Bio-Rad Laboratories 9500 Jeronimo Road, Irvine, California 92618-2017 (949) 598-1200 Telephone: (949) 598-1555 Fax:
Contact Person
Yvette Lloyd Senior Regulatory Affairs Specialist Telephone: (949) 598-1465
Date of Summary Preparation
December 20, 2002
2.0 Device Identification
| Product Trade Name: | Liquichek™ Anti-Mitochondrial Control, Positive |
|---|---|
| Common Name: | Antinuclear Antibody, Indirect Immunofluorescent,Antigen, Control |
| Classifications: | Class II |
| Product Code: | 82DBM |
| Regulation Number: | 21 CFR 866.5100 |
3.0 Device to Which Substantial Equivalence is Claimed
Kallestad TM Autoantibody Positive Control Bio-Rad Laboratories
510 (k) Number: K792610
Description of Device 4.0
This product is prepared from human serum with added preservatives. The control is provided in liquid form for convenience.
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Statement of Intended Use 5.0
The new Liquichek™ Anti-Mitochondrial Control, Positive, is intended for use as an unassayed quality control to monitor indirect immunofluorescent testing for the detection of mitochondrial autoantibodies.
Comparison of the new device with the Predicate Device 6.0
This control is substantially equivalent to the following quality control material for autoimmune analysis that is currently in the market:
Kallestad™ Autoantibody Positive Control Bio-Rad Laboratories
510 (k) Number: K792610
Table 1. Similarities and Differences between new and predicate device.
| Characteristics | Liquichek™ Anti-MitochondrialControl, Positive(New Device) | Kallestad™ Autoantibody PositiveControl(Predicate Device) |
|---|---|---|
| Similarities | ||
| Intended Use | The Liquichek™ Anti-SmoothMuscle Control, Positive, isintended for use as an unassayedquality control to monitor indirectimmunofluorescent testing for thedetection of smooth muscleautoantibodies. | The Autoantibody Positive Controlis a replacement reagent in theKallestad FluorescentAutoantibody test with mousekidney, mouse stomach/kidney,Hep-2 cell line, or Crithidia luciliaesubstrates. |
| Matrix | Human Serum | Human Serum |
| Storage(Unopened) | 2°C to 8°Cuntil expiration date | 2°C to 8°Cuntil expiration date |
| Form | Liquid | Liquid |
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| Differences | ||
|---|---|---|
| Stability(Opened) | Once opened the analyte will bestable for 60 days. | No claim for stability |
| Analyte | Anti-Mitochondrial | ANA: Centromere Pattern, SSA,SSB, Scl-70, Sm, RNP, SpindlePattern, Nucleolar PatternAMAASMAAPCAAnti-nDNA |
7.0 Summary of Performance Data
Stability studies have been performed to determine the open vial stability and shelf life for the Liquichek™ Anti-Mitochondrial Control, Positive. Product claims are as follows:
- 7.1 Once the control is opened the analyte will be stable for 60 days when stored tightly capped at 2 to 8°C.
- 7.2 The control is stable for 2 years when stored unopened at 2 8°C.
Real time studies will be ongoing to support the shelf life of this product.
All supporting data is retained on file at Bio-Rad Laboratories.
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Image /page/3/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 its wings spread, and the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" are arranged in a circular pattern around the eagle. The eagle is composed of three curved lines that form the shape of the bird's body and wings. The logo is simple and clean, and it is easily recognizable.
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
JAN 1 5 2003
Ms. Yvette Lloyd Senior Regulatory Affairs Specialist Bio-Rad Laboratories, OSD 9500 Jeronimo Road Irvine, California 92618-2017
Re: K024227
Trade/Device Name: Liquichek™ Anti-Mitochondrial Control, Positive Regulation Number: 21 CFR § 866.5090 Regulation Name: Anti-Mitochondrial Antibody Indirect/Immunofluorescent. Antigen, Control Regulatory Class: II Product Code: DBM Dated: December 20, 2002 Received: December 23, 2002
Dear Ms. Lloyd:
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.
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Page 2
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). 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). Other general information on your responsibilities under the Act may be obtained 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 vours.
Steven Sutman
Steven I. Gutman, M.D., Director Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health
Enclosure
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Page 1of 1
510(k) Number (if known):
Device Name: Liquichek™ anti-mitochondrial control, positive
Indications For Use:
Liquichek anti-mitochondrial control, positive is intended for use as an unassayed quality control to monitor indirect immunofluorescent testing for the detection of mitochondrial autoantibodies.
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use _____________________________ or Over-the-Counter use _________________________________________________________________________________________________________________________________________________________
A. Reeves for J. Bautista
(Division Sign-Off) Division of Clinical Laboratory Devices
510(k) Number_16 0 24 227
(Optional Format 3-10-98
§ 866.5100 Antinuclear antibody immunological test system.
(a)
Identification. An antinuclear antibody immunological test system is a device that consists of the reagents used to measure by immunochemical techniques the autoimmune antibodies in serum, other body fluids, and tissues that react with cellular nuclear constituents (molecules present in the nucleus of a cell, such as ribonucleic acid, deoxyribonucleic acid, or nuclear proteins). The measurements aid in the diagnosis of systemic lupus erythematosus (a multisystem autoimmune disease in which antibodies attack the victim's own tissues), hepatitis (a liver disease), rheumatoid arthritis, Sjögren's syndrome (arthritis with inflammation of the eye, eyelid, and salivary glands), and systemic sclerosis (chronic hardening and shrinking of many body tissues).(b)
Classification. Class II (performance standards).