K Number
K060264
Device Name
DIMENSION IRON FLEX REAGENT CARTRIDGE (IRON-DF85)
Manufacturer
Date Cleared
2006-03-08

(35 days)

Product Code
Regulation Number
862.1410
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The IRON method for the Dimension® clinical chemistry system is an in vitro diagnostic test intended to quantitatively measure iron in human serum and plasma. Iron measurements are used in the diagnosis and treatment of diseases such as iron deficiency anemia and other disorders of iron metabolism.
Device Description
The Dimension® IRON Flex® reagent cartridge (DF85) is an in vitro diagnostic device that consists of prepackaged reagents in a plastic eight well cartridge for use on the Dade Behring Dimension® clinical chemistry system for the quantitative determination of iron in serum and plasma.
More Information

Not Found

No
The summary describes a standard in vitro diagnostic test using prepackaged reagents and a clinical chemistry system, with no mention of AI or ML in the device description, intended use, or performance studies.

No.

Explanation: This device is an in vitro diagnostic test for measuring iron levels, which is used for diagnosis and treatment monitoring, not for direct therapeutic intervention.

Yes.
The "Intended Use / Indications for Use" and "Device Description" sections explicitly state that the device is an "in vitro diagnostic test" and an "in vitro diagnostic device" respectively, used for the "diagnosis and treatment of diseases".

No

The device description explicitly states it is an "in vitro diagnostic device that consists of prepackaged reagents in a plastic eight well cartridge". This describes a physical hardware component (reagent cartridge) and not a software-only device.

Yes, this device is an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use/Indications for Use: Explicitly states it is an "in vitro diagnostic test intended to quantitatively measure iron in human serum and plasma." It also mentions its use in the "diagnosis and treatment of diseases."
  • Device Description: Clearly identifies the device as an "in vitro diagnostic device."
  • Nature of the Test: The test measures a substance (iron) in a biological sample (serum and plasma) outside of the body, which is the definition of an in vitro test.
  • Clinical Application: The results are used for diagnosis and treatment decisions, which is a key characteristic of an IVD.

N/A

Intended Use / Indications for Use

The IRON method for the Dimension® clinical chemistry system is an in vitro diagnostic test intended to quantitatively measure iron in human serum and plasma. Iron measurements are used in the diagnosis and treatment of diseases such as iron deficiency anemia and other disorders of iron metabolism.

Product codes (comma separated list FDA assigned to the subject device)

JIY

Device Description

The Dimension® IRON Flex® reagent cartridge (DF85) is an in vitro diagnostic device that consists of prepackaged reagents in a plastic eight well cartridge for use on the Dade Behring Dimension® clinical chemistry system for the quantitative determination of iron in serum and plasma.

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

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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

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Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

1. Precision/Reproducibility:
Reproducibility testing was done in accordance with the CLSI/NCCLS Approved Guideline for Evaluation of Precision Performance of Clinical Chemistry Devices (EPS-A2). Commercial controls and serum and plasma pools were analyzed in duplicate twice a day for 20 days. The repeatability and within-lab standard deviations were calculated by analysis of variance method.

2. Linearity/assay reportable range:
Solutions of NIST SRM 937 were prepared by sequential mixing to create equally spaced samples ranging from 0 to 2000 µg/dL iron. The linearity of iron on the Dimension® RxL by the Dimension® IRON assay was evaluated by comparing observed versus expected values across the expected range. A linear regression analysis was performed on the data and plotted. The observed linearity across the reportable range has a correlation coefficient of 0.999 (using Pearson correlation calculation), slope of 0.999, and an intercept of 0.178. The assay range claim is 5.0 µg/dL to 1000 µg/dL.

3. Traceability (controls, calibrators, or method):
The recommended reference material for the Dimension® IRON method is the Dimension® IRON Calibrator (Cat. No. DC85). The assigned values of this product are standardized to SRM NIST 937 Iron Metal Clinical Standard which is a Standard Reference Material of the National Institute of Standards & Technology.

4. Detection limit:
The analytical sensitivity of Dimension® IRON is 5 µg/dL [0.9 µmol/L]. This sensitivity is defined as the mean value (n=20) plus two standard deviations of the low level (0 ug/dL [0 umol/L] IRON Calibrator.

5. Analytical specificity:
Interference testing was performed according to the CLSI/NCCLS Protocol EP-7A. Systematic inaccuracies (bias) due to these substances are less than 10% at an iron concentration of 26 to 38 µg/dL [4.7 to 6.8 µmol/L] and 118 to 136 µg/dL [21.1 to 24.3 umol/L].

6. Method comparison with predicate device:
A total of 147 samples were tested using the Dimension® IRON and IRN assays on a Dimension® RxL clinical chemistry system. 99 individual patient serum samples and 48 individual patient serum samples that were spiked with various amounts of NIST-937 reference iron material were tested. Linear regression analysis was performed using the SAS® System. The range of IRON values in the correlation study was: 9 to 963 ug/dL.

7. Matrix comparison:
129 matched specimens of serum and heparinized plasma were drawn and processed by the IRON method on the Dimension® clinical chemistry system. Linear regression analysis showed excellent agreement between serum, lithium heparin plasma and sodium heparin plasma specimens. No clinically significant difference was observed between serum and plasma samples.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Precision/Reproducibility:
Plasma pool: Repeatability Standard Deviation 0.5 µg/dL (0.5%CV), Within-lab Standard Deviation 0.7 µg/dL (0.7%CV)
Serum pool 1: Repeatability Standard Deviation 0.5 µg/dL (0.5%CV), Within-lab Standard Deviation 0.6 µg/dL (0.6%CV)
Serum pool 2: Repeatability Standard Deviation 1.5 µg/dL (0.5%CV), Within-lab Standard Deviation 3.5 µg/dL (1.1%CV)
Serum pool 3: Repeatability Standard Deviation 2.4 µg/dL (0.5%CV), Within-lab Standard Deviation 4.2 µg/dL (0.8%CV)
BioRad Lyphochek® control Level 1: Repeatability Standard Deviation 1.3 µg/dL (0.5%CV), Within-lab Standard Deviation 1.6 µg/dL (0.7%CV)
BioRad Lyphochek® control Level 2: Repeatability Standard Deviation 0.5 µg/dL (1.1%CV), Within-lab Standard Deviation 0.9 µg/dL (1.9%CV)
BioRad Lyphochek® Anemia control Level 1: Repeatability Standard Deviation 0.3 µg/dL (1.3%CV), Within-lab Standard Deviation 0.5 µg/dL (1.9%CV)

Linearity/assay reportable range:
Correlation coefficient: 0.999
Slope: 0.999
Intercept: 0.178
Assay range claim: 5.0 µg/dL to 1000 µg/dL

Detection limit:
Analytical sensitivity: 5 µg/dL

Method comparison with predicate device:
Slope: 0.980
Intercept: -0.488 µg/dL
Correlation Coefficient: 0.9996
n: 147

Matrix comparison:
Sodium heparin plasma versus serum: r = 0.999
Lithium heparin plasma versus serum: r = 0.999
Lithium heparin plasma versus sodium heparin plasma: r = 0.999

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K944093

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 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.

0

MAR 8 2006

510(k) Summary for the Dimension® IRON Flex® reagent cartridge (DF85)

A. 510(k) Number: K060264

B. Analyte: Total iron

C. Type of Test: Quantitative

D. Applicant:

Dade Behring Inc., P.O. Box 6101, Newark, DE 19714-6101 Contact: Andrea M. Tasker, Regulatory Affairs and Compliance Manager (302) 631-9454

Date of Preparation: January 30, 2006

E. Proprietary and Established Names:

Dimension® Iron Flex® reagent cartridge (IRON-DF85)

F. Regulatory Information:

  • Regulation section: 21 CFR §862.1410 Iron (non-heme) test system 1.
  • Classification: Class I 2.
  • Product Code: JIY 3.
  • Panel: Chemistry (75) 4.

G. Intended Use:

l. Intended for Use:

The IRON method for the Dimension® clinical chemistry system is an in vitro diagnostic test intended to quantitatively measure iron in human serum and plasma.

  1. Indications for Use: The IRON method for the Dimension® clinical chemistry system is an in vitro diagnostic test intended to quantitatively measure iron in human serum and plasma. Iron measurements are used in the diagnosis and treatment of diseases such as iron deficiency anemia and other disorders of iron metabolism.

  2. Special condition for use statement(s): none

    1. Special instrument Requirements: Dimension® clinical chemistry system

1

H. Device Description:

The Dimension® IRON Flex® reagent cartridge (DF85) is an in vitro diagnostic device that consists of prepackaged reagents in a plastic eight well cartridge for use on the Dade Behring Dimension® clinical chemistry system for the quantitative determination of iron in serum and plasma.

I. Substantial Equivalence Information:

  1. Predicate Device: Dimension® IRN Iron Flex® reagent cartridge (DF49A)
    1. Predicate K Number(s): K944093
    1. Comparison with Predicate:
Similarities
ItemDevicePredicate
Intended UseQuantitative determination of
total ironsame
Reagent
componentsFerene® (chromophore)
Thiourea (prevent Cu
interference)
Ascorbic acid (reducing agent)same
Measurement
methodBi-chromatic endpoint
measurement (600 and 700
nm)same
CalibrationThree point linear calibrationsame
Analytical Range0 to 1,000 µg/dLsame
StandardizationNIST SRM 937same
Differences
ItemDevicePredicate
MatrixSerum or heparinized plasmaSerum only

J. Standard/Guidance Document Referenced

  1. Guidance;

Guidance for Industry and FDA Staff - Use of Symbols on Labels and in Labeling of In Vitro Diagnostic Devices Intended for Professional Use, 11/30/2004

Guidance for Industry and FDA Staff; Replacement Reagent and Instrument Family Policy, 12/11/2003

Format for Traditional and Abbreviated 510(k)s - Guidance for Industry and FDA Staff, 08/12/2005

2

2. Standards;

GP22-AContinuous Quality Improvement Essential Management Approaches
ISO 15223Medical devices -- Symbols to be used with medical device labeling
and information to be supplied
ISO 14971-2000Application of risk analysis to Medical devices
EP7-AInterference Testing in Clinical Chemistry
EP5-A2Evaluation of Precision Performance of Clinical Chemistry Devices
CEN 13640Stability testing of In-Vitro Diagnostic Devices

K. Test Principle:

The automated Dimension® IRON method is an adaptation of direct iron assays using the chromophore Ferene ® . Under acidic conditions, iron (Fe+++) bound to the protein transferrin is released. In the presence of the reducing agent ascorbic acid, (Fe+++) is reduced to (Fe++). (Fe ++) forms a blue complex with 3-(2-pyridyl)-5,6-bis-2-(5-furyl sulfonic acid)-1,2,4-triazine, disodium salt (Ferene®). The absorbance of the complex, measured using a bichromatic (600, 700 nm) endpoint technique, is directly proportional to the concentration of transferrin-bound iron in the serum.

L . Performance Characteristics:

  1. Precision/Reproducibility:

Reproducibility testing was done in accordance with the CLSI/NCCLS Approved Guideline for Evaluation of Precision Performance of Clinical Chemistry Devices (EPS-A2). Commercial controls and serum and plasma pools were analyzed in duplicate twice a day for 20 days. The repeatability and within-lab standard deviations were calculated by analysis of variance method.

3

MeanStandard Deviation (%CV)
Materialµg/dL[µmol/L]RepeatabilityWithin-lab
Plasma pool101180.5 [0.09] (0.5)0.7 [0.13] (0.7)
Serum pool 19516.90.5 [0.09] (0.5)0.6 [0.11] (0.6)
Serum pool 231656.61.5 [0.27] (0.5)3.5 [0.63] (1.1)
Serum pool 353395.42.4 [0.43] (0.5)4.2 [0.75] (0.8)
BioRad Lyphochek® control Level 123141.31.3 [0.23] (0.5)1.6 [0.29] (0.7)
BioRad Lyphochek® control Level 2508.90.5 [0.09] (1.1)0.9 [0.16] (1.9)
BioRad Lyphochek® Anemia control Level 1264.70.3 [0.05] (1.3)0.5 [0.09] (1.9)
Reduced Sample Volumec
Serum pool 110318.50.7 [0.13] (0.6)1.0 [0.18] (0.9)
Serum pool 231656.61.5 [0.27] (0.5)3.5 [0.63] (1.1)
Serum pool 353094.92.9 [0.52] (0.5)4.2 [0.75] (0.8)
BioRad Lyphochek® Anemia control Level 1325.70.3 [0.05] (1.3)0.5 [0.09] (1.9)
BioRad Multiqual® control Level 323141.31.6 [0.29] (0.7)2.2 [0.39] (0.9)

Reproducibilityª,b

Lyphochek® and Multiqual® are registered trademarks of Bio-Rad Laboratories, Irvine, CA 92618.

  • Reproducibility testing was done in accordance with the CLSI/NCCLS Approved a. Guideline for Evaluation of Precision Performance of Quantitative Measurement Methods (EP5-A2, 2004).
  • Specimens at each level were analyzed in duplicate, twice a day, for 20 days. The b repeatability andwithin-lab standard deviations were calculated by analysis of variance method.
  • Using reduced sample size (25 uL). C.

2. Linearity/assay reportable range:

Solutions of NIST SRM 937 were prepared by sequential mixing to create equally spaced samples ranging from 0 to 2000 µg/dL iron. The linearity of iron on the Dimension® RxL by the Dimension® IRON assay was evaluated by comparing observed versus expected values across the expected range. A linear regression analysis was performed on the data and plotted. The observed linearity across the reportable range has a correlation coefficient of 0.999 (using Pearson correlation calculation), slope of 0.999, and an intercept of 0.178. The assay range claim is 5.0 µg/dL to1000 µg/dL.

4

  1. Traceability (controls, calibrators, or method):

The recommended reference material for the Dimension® IRON method is the Dimension® IRON Calibrator (Cat. No. DC85). The assigned values of this product are standardized to SRM NIST 937 Iron Metal Clinical Standard which is a Standard Reference Material of the National Institute of Standards & Technology.

4. Detection limit:

The analytical sensitivity of Dimension® IRON is 5 µg/dL [0.9 µmol/L]. The analytical sensitivity represents the lowest concentration of iron that can be distinguished from zero. This sensitivity is defined as the mean value (n=20) plus two standard deviations of the low level (0 ug/dL [0 umol/L] IRON Calibrator.

5. Analytical specificity:

Interference testing was performed according to the CLSI/NCCLS Protocol EP-7A. Systematic inaccuracies (bias) due to these substances are less than 10% at an iron concentration of 26 to 38 µg/dL [4.7 to 6.8 µmol/L] and 118 to 136 µg/dL [21.1 to 24.3 umol/L]. A summary of potential interfering substances and the substances that do not interfere with the Dimension® IRON method when present in serum at the concentrations indicated can be found in the package insert.

6. Method comparison with predicate device:

A total of 147 samples were tested using the Dimension® IRON and IRN assays on a Dimension® RxL clinical chemistry system. 99 individual patient serum samples and 48 individual patient serum samples that were spiked with various amounts of NIST-937 reference iron material were tested. Studies were performed using routine methods for quality control, maintenance and calibration as described in the instrument instructions for use.

Linear regression analysis was performed using the SAS® System. The model equation for regression statistics is: Result of Dimension® system = (Slope x comparative method result) + Intercept. The range of IRON values in the correlation study was: 9 to 963 ug/dL. The linear regression statistics are presented in the table below.

Method Comparison

| Comparative
Method | Slope | Intercept
ug/dL | Correlation
Coefficient | n |
|---------------------------|-------|--------------------|----------------------------|-----|
| Dimension®
IRN (DF49A) | 0.980 | -0.488 | 0.9996 | 147 |

5

7. Matrix comparison

129 matched specimens of serum and heparinized plasma were drawn and processed by the IRON method on the Dimension® clinical chemistry system. Linear regression analysis showed excellent agreement between serum, lithium heparin plasma and sodium heparin plasma specimens. No clinically significant difference was observed between serum and plasma samples.

Sodium heparin plasma versus serum: n = 129, y = 0.988x + 0.804, r = 0.999 Lithium heparin plasma versus serum: n = 129, y = 0.985x + 1.42, r = 0.999 Lithium heparin plasma verus sodium heparin plasma: n = 129, y = 0.997x + 0.666, r = 0.999

  1. Reference Interval

Males: 65-175 µg/dL [11.6-31.3 µmol/L]1

Females: 50-170 µg/dL [9.0- 30.4 µmol/L]1

Normal reference intervals can differ by as much as 35% between commercial iron methods2, therefore it is advised that each laboratory establish its own expected values for iron as performed on the Dimension® system.

  • Kaplan LA, Psece AJ. Clinical Chemistry Theory, Analysis, and Correlation, 3th ed. St. 1. Louis: Mosby, Inc., 1996: p 699, 713-714.
  • Burtis, CA, Ashwood ER, Bruns DE. Tietz Textbook of Clinical Chemistry and Molecular 2. Diagnostics, 4th ed. St. Louis: Elsevier Saunders, 2005, 1186-1193.

6

DEPARTMENT OF HEALTH & HUMAN SERVICES

Public Health Service

MAR 8 2006

Food and Drug Administratio 2098 Gaither Road Rockville MD 20850

Ms. Andrea Tasker Regulatory Affairs and Compliance Manager Dade Behring Inc. Glasgow Business Community P.O. Box 6101, Bldg. 500, M/S 514 Newark, DE 19714-6101

Re: K060264

K000201
Trade/Device Name: Dimension® Iron Flex® reagent cartridge (IRON-DF85) Regulation Number: 21 CFR§862.1410 Regulation Name: Iron (non-heme) test system Regulatory Class: Class I Product Code: JIY Dated: January 30, 2006 Received: February 1, 2006

Dear Ms. Tasker:

We have reviewed your Section 510(k) premarket notification of intent to market the device we nave roviews your betermined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for association 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 r ou mayy ators 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 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).

7

Page 2 --

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 prarketed 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, rr you stions 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,

Alberto Guts

Alberto Gutierrez, Ph.D. Director Division of Chemistry and Toxicology Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health

Enclosure

8

Indications For Use Statement

510(k) Number (if known):

Device Name:

Dimension® Iron Flex® reagent cartridge (IRON - DF85)

Indications for Use:

The IRON method for the Dimension® clinical chemistry system is an in The IRON method for the Ditton and to quantitatively measure iron in human serum and plasma. Iron measurements are used in the diagnosis and scrum and plasma. "I on measing deficiency anemia and other disorders of iron metabolism.

Concurrence of CDRH, Office of -In Vitro Điagnostic Devices (OIVD)

Prescription Use
(Per 21 CFR 801 Subpart D)

AND/OR

Over-the-counter Use (21 CFR 801 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANGTHER PLANTES NEEDED)

Avision pign-ﺍﻟﻤﺴﺎﻋﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘ

Office of In Vitro Diagnostic Device Evaluation and Safety

060264