(42 days)
The Total Iron Binding Capacity (TIBC) assay uses TIBC sample pretreatment in conjunction with the Iron assay for the quantitation of the total iron binding capacity of human serum. Iron-binding capacity measurements are used in the diagnosis and treatment of anemia.
Total Iron Binding Capacity (TIBC) is an in vitro diagnostic assay for the quantitative determination of total iron binding capacity of human serum. The TIBC assay is a clinical chemistry assay which is used in the pretreatment of serum samples for total iron binding capacity analysis with the Iron assay. Ferric chloride saturating solution is mixed with the sample to bind all available apotransferrin binding sites with iron. Alumina adsorbent removes excess iron from the serum mixture. The mixture is then analyzed for total iron and the result is multiplied by the dilution factor to compensate for dilution of the serum by the saturating solution.
Here's an analysis of the provided text, focusing on the acceptance criteria and the study used to demonstrate the device meets those criteria:
1. Table of Acceptance Criteria and Reported Device Performance
The acceptance criteria for the new Abbott Laboratories TIBC assay are implicitly defined by its substantial equivalence to the predicate device, the Boehringer Mannheim TIBC assay on the Hitachi 717 Analyzer. The performance metrics reported are primarily related to this comparison.
| Acceptance Criteria (Implied by Substantial Equivalence Goal) | Reported Device Performance (Abbott TIBC assay) |
|---|---|
| Correlation with Predicate Device: Acceptable correlation (typically r > 0.95 or similar for quantitative assays) | Correlation coefficient (r) = 0.9863 |
| Slope of Regression (vs. Predicate): Close to 1 (indicating proportional agreement) | Slope = 0.878 |
| Y-intercept of Regression (vs. Predicate): Close to 0 (indicating absence of systematic bias) | Y-intercept = 36.71 ug/dL |
| Precision (Within-run, Between-run, Between-day): Acceptable variability (e.g., CV% limits) | Total %CV for Level 1/Panel 111 = 4.0%Total %CV for Level 2/Panel 112 = 4.9% |
| Linearity: Up to a specified high concentration | Linear up to 1,400 ug/dL (for the Iron assay, which is part of the TIBC determination) |
| Limit of Quantitation (Sensitivity): A specified low concentration | 10 ug/dL (for the Iron assay) |
| Acceptable Measurement Range for TIBC: A specified range where results are valid | 30 ug/dL to 4,200 ug/dL |
2. Sample Size Used for the Test Set and Data Provenance
The document does not explicitly state the sample size used for the comparative performance studies (method comparison). It mentions "comparative performance studies were conducted" and "precision studies were conducted using two levels of control material."
- Sample Size: Not specified for the method comparison or precision studies.
- Data Provenance: Not specified. It's likely retrospective data from laboratory samples, but no country of origin or specific type of samples (e.g., patient samples, spiked samples) is provided. The use of "control material" for precision studies suggests commercially prepared controls.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications of Those Experts
This information is not applicable and is not provided in the document. The study evaluates a quantitative in vitro diagnostic assay, where "ground truth" for individual measurements is established by the reference measurement procedure (the predicate device) or by known concentrations in control materials, not by expert consensus in the way a diagnostic imaging or pathology study might use.
4. Adjudication Method (for the test set)
Not applicable. As described above, this is a quantitative measurement comparison, not a study requiring adjudication of qualitative or subjective interpretations.
5. If a Multi Reader Multi Case (MRMC) Comparative Effectiveness Study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
Not applicable. This is an in vitro diagnostic assay, not an AI-assisted diagnostic tool that would involve human readers or image interpretation.
6. If a Standalone (i.e. algorithm only without human-in-the-loop performance) was done
Yes, the performance study describes the standalone performance of the Abbott TIBC assay (which is an enzymatic/colorimetric chemical assay, not an algorithm in the modern AI sense, but functions as a standalone test). The method comparison and precision studies demonstrate the performance of the device without human interpretation or intervention in the measurement process beyond standard laboratory operating procedures.
7. The Type of Ground Truth Used
The "ground truth" in this context is established by:
- Reference Method/Predicate Device: For the comparative performance, the Boehringer Mannheim TIBC assay on the Hitachi 717 Analyzer served as the reference or benchmark method.
- Known Concentrations: For precision studies, "control material" at two levels (Level 1/Panel 111 and Level 2/Panel 112) would have known or target concentrations against which the variability of the device's measurements are assessed.
- Spiked Samples/Standards: For linearity and sensitivity, known concentrations of iron would be used to establish the quantitative range and detection limits.
8. The Sample Size for the Training Set
Not applicable. This is a traditional in vitro diagnostic chemical assay, not a machine learning or AI device that requires a "training set." The assay itself is based on established chemical reactions.
9. How the Ground Truth for the Training Set was Established
Not applicable, as there is no training set for this type of device.
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K 98/279
MAY 20 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) 518-7861 Fax (972) 753-3367
| Date of Preparation of this Summary: | April 7, 1998 |
|---|---|
| Device Trade or Proprietary Name: | TIBC |
| Device Common/Usual Name or Classification Name: | TIBC |
| Classification Number/Class: | 75JMO/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: K981279
Test Description:
Total Iron Binding Capacity (TIBC) is an in vitro diagnostic assay for the quantitative determination of total iron binding capacity of human serum. The TIBC assay is a clinical chemistry assay which is used in the pretreatment of serum samples for total iron binding capacity analysis with the Iron assay. Ferric chloride saturating solution is mixed with the sample to bind all available apotransferrin binding sites with iron. Alumina adsorbent removes excess iron from the serum mixture. The mixture is then analyzed for total iron and the result is multiplied by the dilution factor to compensate for dilution of the serum by the saturating solution.
TIBC 510(k) Anril 7, 1998 TIBC:Ell wo
Section II Page 1
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Substantial Equivalence:
The TIBC assay is substantially equivalent to the Boehringer Mannheim® TIBC assay on the Hitachi® 717 Analyzer (K872494).
Both assays vield similar Performance Characteristics.
Similarities:
- Both assays are in vitro clinical chemistry methods. .
- Both assays can be used for sample pretreatment in the quantitative determination . of TIBC.
- Both assays yield similar clinical results. .
Difference:
- There is a minor difference between the assay range. .
Intended Use:
The Total Iron Binding Capacity (TIBC) assay uses TIBC sample pretreatment in conjunction with the Iron assay for the quantitation of the total iron binding capacity of human serum.
Performance Characteristics:
Comparative performance studies were conducted using the ALCYON™ Analyzer. The TIBC assay method comparison vielded acceptable correlation with the Boehringer Mannheim TIBC assay on the Hitachi 717 Analyzer. The correlation coefficient = 0.9863, slope = 0.878, and Y-intercept = 36.71 ug/dL. Precision studies were conducted using the TIBC assay. Within-run, between-run, and between-day studies were performed using two levels of control material. The total %CV for Level 1/Panel 111 is 4.0% and 4.9% for Level 2/Panel 112. The Iron assay is linear up to 1,400 ug/dL. The limit of quantitation (sensitivity) for the Iron assay is 10 ug/dL. The calculated TIBC values are acceptable from 30 ug/dL to 4,200 ug/dL. These data demonstrate that the performance of the TIBC assay is substantially equivalent to the performance of the Boehringer Mannheim TIBC assay on the Hitachi 717 Analyzer.
TIBC 510(k) April 7, 1998 TIBC fel lwo
Section II Page 2
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Conclusion:
The TIBC assay is substantially equivalent to the Boehringer Mannheim TIBC assay on the Hitachi 717 Analyzer as demonstrated by results obtained in the studies.
TIBC 510(k)
April 7, 1998
TIBCELlwp
Section II Page 3
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Food and Drug Administration 2098 Gaither Road Rockville MD 20850
MAY 20 1998
Mark Littlefield Section Manager, Regulatory Affairs Abbott Laboratories 1920 Hurd Drive Irving, Texas 75038
K981279 Re : TIBC Requlatory Class: I Product Code: JMO Dated: April 7, 1998 Received: April 8, 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 reqistration, listing of devices, good manufacturing practice, labeling, and prohibitions aqainst 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. ಕ್ಷ 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 requlations.
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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
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K981279 510(k) Number (if known): __
TIBC Device Name:
Indications For Use:
The Total Iron Binding Capacity (TIBC) assay uses TIBC sample pretreatment in conjunction with the Iron assay for the quantitation of the total iron binding capacity of human serum. Iron-binding capacity measurements are used in the diagnosis and treatment of anemia.
(Division Sign-Off)
Division of Clinical Laboratory Devices
510(k) Number. Laboratories 79
Z
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrenee of CDRH, Office of Device Evaluation (ODE) Prescription Use Over-The-Counter Use OR (Per 21 CFR 801.109)
(Optional Format 1-2-96)
§ 862.1415 Iron-binding capacity test system.
(a)
Identification. An iron-binding capacity test system is a device intended to measure iron-binding capacity in serum. Iron-binding capacity measurements are used in the diagnosis and treatment of anemia.(b)
Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 862.9.