(150 days)
The Vitalab Iron Reagent Kit, which contains both reagent and calibrator, is intended for use with the Vitalab Selectra Analyzer as a system for the quantitative determination of total iron in serum and plasma. Iron results may be used for the diagnosis and treatment of diseases associated with iron metabolism such as iron deficiency anemia, hemochromatosis (a disease associated with widespread deposit in the tissues of two iron-containing pigments, hemosiderin and hemofuscin, and characterized by pigmentation of the skin), and chronic renal disease.
The Vitalab Iron Reagent Kit and the Vitalab Selectra Analyzer are used as a system for the quantitative determination of total iron in serum and plasma. Iron in the sample is specifically released from transferrin using an acidic buffer. The released iron is then reduced and reacts with a chromogenic indicator. The increase in absorbance at 578 nm is measured photometrically. The increase in absorbance at 578 nm is proportional to the iron concentration of the sample.
The provided text describes the acceptance criteria and study for the Vitalab Iron Reagent Kit and Vitalab Selectra Analyzer, which are used as a system for the quantitative determination of total iron in serum and plasma.
Here's a breakdown of the requested information:
1. Table of Acceptance Criteria and Reported Device Performance
| Performance Metric | Acceptance Criteria (Implied) | Reported Device Performance |
|---|---|---|
| Linearity | Good linear relationship (regression statistics) | (Vitalab Recoveries) = 0 ug/dL + 1.017 x (Concentration), n = 44 |
| Precision (Within Run) - Serum 1 (57 ug/dL) | Not explicitly stated but typically low CV% | 1SD = 0.9, %CV = 1.6% |
| Precision (Within Run) - Serum 2 (158 ug/dL) | Not explicitly stated but typically low CV% | 1SD = 0.9, %CV = 0.6% |
| Precision (Within Run) - Serum 3 (260 ug/dL) | Not explicitly stated but typically low CV% | 1SD = 1.0, %CV = 0.4% |
| Precision (Total) - Serum 1 (57 ug/dL) | Not explicitly stated but typically low CV% | 1SD = 1.5, %CV = 2.7% |
| Precision (Total) - Serum 2 (158 ug/dL) | Not explicitly stated but typically low CV% | 1SD = 3.0, %CV = 1.9% |
| Precision (Total) - Serum 3 (260 ug/dL) | Not explicitly stated but typically low CV% | 1SD = 5.2, %CV = 2.0% |
| Method Comparison with Competitive Reagent | Good correlation and agreement | Selectra = 1.1 µg/dL + 0.988 x Competitive Reagent |
| Method Comparison (Deming Statistics) | Not explicitly stated but typically small bias/error | s(y.x) = 2.3 µg/dL |
| Detection Limit (Claimed) | Documented | 8.2 µg/dL iron (based on observed standard deviation of 2.8 µg/dL) |
| Onboard Reagent Stability | Less than 2% coefficient of variation (CV%) after 14 days | All cases: statistical estimates of CV < 2% |
| Calibration Stability | Less than 2% coefficient of variation (CV%) after 7 days | All cases: statistical estimates of CV < 2% |
2. Sample Size Used for the Test Set and the Data Provenance
- Linearity: n = 44 (This likely refers to the number of data points used for the regression analysis). The text does not specify the provenance (country of origin) or if it was retrospective or prospective.
- Precision:
- Serum 1: n = 66
- Serum 2: n = 66
- Serum 3: n = 66
- The text does not specify the provenance (country of origin) or if it was retrospective or prospective for these control serum samples. It states "commercially available control serum," implying a standardized, perhaps manufactured, source.
- Method Comparison: "Mixed serum and plasma specimens collected from adult patients." The sample size is not explicitly provided for the method comparison, only a range of values (9 - 287 µg/dL) was observed. The text does not specify the provenance (country of origin) or if it was retrospective or prospective.
- Detection Limit: Repetitive assay of a "diluted serum pool." The exact number of repetitions is not given, but it implies multiple measurements.
- Stability Studies: "Assay of serum after the claimed periods." The number of samples/replicates is not specified, but it was sufficient to generate statistical estimates of coefficient of variation.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and the Qualifications of Those Experts
This information is not applicable as this device is an in-vitro diagnostic (IVD) for quantitative iron measurement, not an imaging or interpretive device that typically requires expert review for ground truth establishment. The "ground truth" for the performance metrics is based on established analytical chemistry principles, reference methods, and statistical analysis using control materials or comparative measurements.
4. Adjudication Method for the Test Set
This information is not applicable for the same reason as point 3. Adjudication methods like 2+1 or 3+1 are used for diagnostic interpretations (e.g., in radiology studies) where human disagreement needs resolution.
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
This information is not applicable. This is an IVD device for laboratory measurement, not an AI-assisted diagnostic tool that would involve human readers or interpreters.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
This information is not applicable in the context of an "algorithm only" device as traditionally understood for AI/CAD systems. This device is a reagent kit and analyzer system for a chemical assay. Its performance is inherently "standalone" in the sense that the measurement results are generated by the instrument and reagents, independent of human interpretation for the measurement itself. The accuracy of these measurements is assessed against reference standards or comparative methods.
7. The type of ground truth used
- Linearity, Precision, Detection Limit: Ground truth is established based on known concentrations in control materials, standards, or spiked samples, and statistical measures derived from replicate assays.
- Method Comparison: Ground truth is established by comparison to a "Competitive Reagent", assumed to be a clinically accepted or predicate method.
8. The sample size for the training set
This information is not explicitly provided and is likely not applicable in the same way it would be for a machine learning model. For this type of chemical assay, "training" typically refers to the calibration process. The device uses an "iron calibrator" and its "calibration stability claims are documented." The text refers to a "Vitalab Iron Reagent Kit, which contains an iron calibrator," and states it "is equivalent to the Beakman Iron Reagent Kit, calibrated with Vitalab Iron Reagent Kit". This suggests the calibrator itself serves the function of establishing the measurement curve.
9. How the ground truth for the training set was established
As inferred from point 8, the "training" (calibration) ground truth is established by the iron calibrator included in the kit. Calibrators are typically manufactured with precisely known concentrations, often traceable to international reference materials or established methods. The equivalence to the Beckman Coulter, Inc. kit also suggests a benchmarking against an established standard.
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Clinical Data
MAY 2 1 2004
1075 W. Lambert Road Suite D Brea, CA 92821 F (714) 672-3554 T (714) 672-3553
Summary of 510(k) Safety and Effectiveness Information
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.
Gold inon Reagent Kit and the Vitalab Selectra Analyzer are used as a system for the quantiative and of total inon The Vitalab Iron Keagent Kir and the Villal Selection of Cased and as iron deficiency and as iron deficiency and mind promotes in serum and plasma. Tron results may be used to the tissues of two iron-containing pigments, hemosiderin hemochromatosis (a disease associated with with stimes renal disease. The Virgin I read to neagent and hemousing and characterized by pigilished of the time the transferrin using actical in charges at 678 mg is measures iron photometrically. Tron in the specifical is triculsed from indicator. The increase in absorbance at 578 nm is proportional to the iron concentration of the sample.
Vitalab Iron Reagent Kit, which contains an iron calibrator, is equivalent to the Beakman Iron Reagent Kit, calibrated with Vitalab Iron Reagent Kri, which ecinanis an arented by Beckman Coulter, Inc. of Brea, CA.
The effectiveness of Vitalab Iron Reagent Kit and the Vitalab Selectra is shown in the following studies.
The recovery of iron using the Vitalab Iron Reagent is linear from 10 to at least 1000 pages associated of stophers I he recovery of tron using the Vialab Iroll Reaguit is intent regression statistics compare recoveries to standard concentrations. These statistics are shown below.
(Vitalab Recoveries) = 0 ug/dL + 1.017 x (Concentration), n = 44
Precision is demonstrated by the replicate assay of commercially available control serum. Precision statistics, calculated I recision is demonstration escribed in NCCLS Guideline EP3-T, are shown below.
| Sample | n | mean | Within Run | Total | ||
|---|---|---|---|---|---|---|
| 1SD | %CV | 1SD | %CV | |||
| Serum 1 | 66 | 57 | 0.9 | 1.6% | 1.5 | 2.7% |
| Serum 2 | 66 | 158 | 0.9 | 0.6% | 3.0 | 1.9% |
| Serum 3 | 66 | 260 | 1.0 | 0.4% | 5.2 | 2.0% |
Mixed serum and plasma specimens collected from adult patients were assayed for iron using the Vitalab Selectra and Mixed setum and plasma specificals conceed from additions were compared by Deming statistics were obtained.
Selectra = 1.1 µg/dL + 0.988 x Competitive Reagent $(y.x) = 2.3 µg/dL range = 9 - 287 µg/dL
The claimed detection limit is documented through the repetitive assay of a diluted serum pool. The observed standard I he claimed decection inni is documents in ought is 2,8 µg/d., which supports a detection limit claim of 8,2 µg/dL iron.
The 14 day onboard reagent stability and 7 day calibration stability claims are documented through the assay of serum THE 14 day offer the claimed periods. In all cases, statistical estimates of coefficient of variation are less than 2%.
Wynn Stocking Manager of Regulatory Affairs Clinical Data, Brea CA
510(k) Notification, Vitalab Iron Reagent Kit, 22 November 2003, p 49
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Image /page/1/Picture/1 description: The image shows the logo for the Department of Health & Human Services - USA. The logo is a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is a stylized image of three wavy lines that are meant to represent a human figure.
MAY 21 2004
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
Clinical Data, Inc. c/o Mr. Ned Devine Responsible Official Entela, Inc. 3033 Madison Avenue, SE Grand Rapids, MI 49548
K033983 Re:
Trade/Device Name: Vitalab Iron Reagent and Calibrator Regulation Number: 21 CFR 862.1410 Regulation Name: Iron (non-heme) test system Regulatory Class: Class I Product Code: JIY Dated: May 10, 2004 Received: May 13, 2004
Dear Mr. Devine:
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 markcted 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 (sec 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).
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Page 2
This letter will allow you to begin marketing your device as described in your Section 510(k) I mis letter will anow you to organizatial equivalence of your device of your device to a legally promatics noticated 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, If you desire specific miration and advertising of your device, please contact the Office of or questions on the Promise Evaluation and Safety at (301) 594-3084. 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 Tou may obtain other generers, 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 yours.
Jean M. Cooper, MS, DVM.
Jean M. Cooper, MS, D.V.M. Director Division of Chemistry and Toxicology Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health
Enclosure
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Indications for Use
510(k) Number (if known): K033983
Device Name: Vitalab Iron Reagent and Calibrator
Indications For Use:
The Vitalab Iron Reagent Kit, which contains both reagent and calibrator, is intended for The Vitalab from Rouger An, which exercas a system for the quantitative defermination of total iron in serum and plasma. Iron results may be used for the diagnosis and or total from in ocrain and plass iron deficiency anemia, hemochromatosis (a disease associated with widespread deposit in the tissues of two iron-containing pigments, hemosiderin and hemofuscin, and characterized by pigmentation of the skin), and chronic renal disease.
Prescription Use (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)
Quill Cheler for Jen Cooper
Division Sign-Off
Office of In Vitro Diagnostic Device Evaluation and Safety
Page 1 of 1
510(k) K033983
§ 862.1410 Iron (non-heme) test system.
(a)
Identification. An iron (non-heme) test system is a device intended to measure iron (non-heme) in serum and plasma. Iron (non-heme) measurements are used in the diagnosis and treatment of diseases such as iron deficiency anemia, hemochromatosis (a disease associated with widespread deposit in the tissues of two iron-containing pigments, hemosiderin and hemofuscin, and characterized by pigmentation of the skin), and chronic renal disease.(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.