K Number
K051054
Device Name
VISULIZE FACTOR IX ANTIGEN KIT
Date Cleared
2005-06-29

(64 days)

Product Code
Regulation Number
864.7290
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The VisuLize™ Factor IX Antigen Kit is intended for use as an in vitro diagnostic assay for the quantitative determination of Factor IX antigen in human plasma samples and Factor IX concentrates using the double antibody enzyme linked immuno-sorbent assay (ELISA).
Device Description
The VisuLize™ Factor IX Antigen kit is a sandwich enzyme-linked immuno-sorbent assay (ELISA) using a polyclonal antibody coated 96-microwell format. Plasma samples are diluted and applied to the pre-coated wells. After washing away unbound proteins, a horseradish peroxidase (HRP) labelled polyclonal antibody is applied to detect the captured Factor IX. A chromogenic substrate (TMB containing H2O2) is added to allow for color development. The color formed is measured spectrophotometrically at 450 nm, with the absorbance being directly proportional to the concentration of Factor IX that was in the sample.
More Information

No
The device description details a standard ELISA assay, and there are no mentions of AI, ML, or related technologies in the provided text.

No
The device is an in vitro diagnostic assay used to quantify Factor IX antigen in human plasma samples and Factor IX concentrates, which is a diagnostic purpose, not a therapeutic one.

Yes
The "Intended Use / Indications for Use" section explicitly states that the kit "is intended for use as an in vitro diagnostic assay."

No

The device description clearly outlines a physical kit containing reagents, microwells, and antibodies for an ELISA assay, which is a hardware-based laboratory test.

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

The "Intended Use / Indications for Use" section explicitly states: "The VisuLize™ Factor IX Antigen Kit is intended for use as an in vitro diagnostic assay for the quantitative determination of Factor IX antigen in human plasma samples and Factor IX concentrates..."

This statement clearly identifies the device as an in vitro diagnostic product.

N/A

Intended Use / Indications for Use

The VisuLize™ Factor IX Antigen Kit is intended for use as an in vitro diagnostic assay for the quantitative determination of Factor IX antigen in human plasma samples and Factor IX concentrates using the double antibody enzyme linked immuno-sorbent assay (ELISA).

Product codes

GGP

Device Description

The VisuLize™ Factor IX Antigen kit is a sandwich enzyme-linked immuno-sorbent assay (ELISA) using a polyclonal antibody coated 96-microwell format. Plasma samples are diluted and applied to the pre-coated wells. After washing away unbound proteins, a horseradish peroxidase (HRP) labelled polyclonal antibody is applied to detect the captured Factor IX. A chromogenic substrate (TMB containing H2O2) is added to allow for color development. The color formed is measured spectrophotometrically at 450 nm, with the absorbance being directly proportional to the concentration of Factor IX that was in the sample.

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

Not Found

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

Not Found

Summary of Performance Studies

Type: Clinical Performance Comparison
Sample Size: INTERNAL TESTING: 134, EXTERNAL TESTING SITE #1: 114, EXTERNAL TESTING SITE #2: 109
Key Results: The results obtained by the three testing sites demonstrated excellent correlations between the proposed and predicate devices.

Key Metrics

Pearson Product Moment correlation co-efficient (r): INTERNAL TESTING: 0.987, EXTERNAL TESTING SITE #1: 0.976, EXTERNAL TESTING SITE #2: 0.982
P-value (Single factor ANOVA): INTERNAL TESTING: 0.528, EXTERNAL TESTING SITE #1: 0.458, EXTERNAL TESTING SITE #2: 0.228
Intra-assay precision (CV%): 3.24% - 8.78%
Inter-assay precision (CV%): 2.96% - 6.84%
Linearity: Log-log curve, R2 ≥ 0.990
Detection Limit: 0.005 IU/mL (0.5%)

Predicate Device(s)

Asserachrom IX:AG, K854312

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 864.7290 Factor deficiency test.

(a)
Identification. A factor deficiency test is a device used to diagnose specific coagulation defects, to monitor certain types of therapy, to detect coagulation inhibitors, and to detect a carrier state (a person carrying both a recessive gene for a coagulation factor deficiency such as hemophilia and the corresponding normal gene).(b)
Classification. Class II (performance standards).

0

K05105-54

JUN 2 9 2005

Section H

510(k) Summary for VisuLize™ Factor IX Antigen Kit (Summary of Safety and Effectiveness)

This summary of 510(k) safety and effectiveness information is being submitted in Sammary of STO(K) Sarety in ments of SMDA 1990 and 21 CFR 807.92.

| Submitted By: | Affinity Biologicals Inc.
1395 Sandhill Drive
Ancaster, ON
Canada, L9G 4V5
Phone: 905-304-9896
Fax: 905-304-9897 |
|---------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact Person: | Denise Foulon, Scientific Director
Phone: 905-304-9896
Fax: 905-304-9897 |
| Summary Prepared: | April 25, 2005 |
| Name of the Device: | VisuLize™ Factor IX Antigen Kit
Common Name: Factor IX ELISA assay |
| Classification of Device: | Class II
21 CFR 864.7290, Factor Deficiency Test
Subpart H, Hematology Kits and Packages
Product Code: GGP |
| Predicate Device: | Asserachrom IX:AG, K854312
Diagnostica Stago (formerly American Bioproducts) |
| Device Description: | The VisuLize™ Factor IX Antigen kit is a sandwich enzyme-
linked immuno-sorbent assay (ELISA) using a polyclonal
antibody coated 96-microwell format. Plasma samples are
diluted and applied to the pre-coated wells. After washing away
unbound proteins, a horseradish peroxidase (HRP) labelled
polyclonal antibody is applied to detect the captured Factor IX. A
chromogenic substrate (TMB containing H2O2) is added to allow
for color development. The color formed is measured
spectrophotometrically at 450 nm, with the absorbance being
directly proportional to the concentration of Factor IX that was in
the sample. |
| Device Intended Use: | The VisuLize™ Factor IX Antigen Kit is an Enzyme Immunoassay
for the quantitative determination of Factor IX Antigen in human
plasma samples and Factor IX concentrates using the double
antibody enzyme linked immuno-sorbent assay (ELISA). |

1

Comparison to Predicate Device:

following table:
VisuLize™ Factor IX Antigen
Kit (Proposed Device)Asserachrom IX:AG Kit
(Predicate Device)
Assay PrincipleQuantitative determination of Factor
IX antigen by sandwich ELISA
(polyclonal - polyclonal HRP)Quantitative determination of Factor
IX antigen by sandwich ELISA
(polyclonal - polyclonal HRP)
Intended UseAn enzyme immunoassay for the
quantitative determination of Factor
IX antigen in human plasma samples
and Factor IX concentrates using the
double antibody enzyme linked
immuno-sorbent assay (ELISA).An enzyme immunoassay (EIA)
procedure for the quantitative
determination of Factor IX by the
sandwich technique also known as
enzyme-linked immunosorbent
assay (ELISA).
Sample MatrixHuman plasma derived from blood
collected into 3.2% buffered citrateHuman plasma derived from blood
collected into 3.2% buffered citrate
Intra-assay
precision (CV%)3.24% - 8.78%5.31% - 5.84%
Inter-assay
precision (CV%)2.96% - 6.84%5.99% - 6.39%
LinearityLog-log curve, R2 ≥ 0.990Log-log graph
Detection Limit0.005 IU/mL (0.5%)1%
Traceability of
Calibrator PlasmaCalibrator plasma is standardized
against a secondary standard that is
traceable to the WHO International
Standard for Factor IX Activity
99/826Calibrator plasma is standardized
against a secondary standard that is
traceable to the WHO International
Standard for Factor IX Activity
99/826

A technical comparison of the proposed device and the predicate device is illustrated in the

Clinical Performance Comparison:

The clinical performance of the VisuLize™ Factor IX Antigen Kit versus the Asserachrom IX:AG rine oliniour performance of the substantial equivalence. Testing of clinical samples across the kir was confider range was conducted internally and by two external testing sites. The results ohtained by the three testing sites demonstrated excellent correlations between the proposed and predicate devices, as illustrated in the following table:

Summary of all Clinical Data from 3 Testing Sites

| | INTERNAL
TESTING | EXTERNAL TESTING
SITE #1 | EXTERNAL TESTING
SITE #2 |
|------------------------------------------------------------|---------------------|-----------------------------|-----------------------------|
| Number of Samples | 134 | 114 | 109 |
| Pearson Product
Moment correlation co-
efficient (r) | 0.987 | 0.976 | 0.982 |
| P-value (Single factor
ANOVA) | 0.528 | 0.458 | 0.228 |

Conclusion: Based on the technical comparison and clinical performance results, it is concluded that the VisuLize™ Factor IX Antigen kit is substantially equivalent to the Asserachrom IX:AG enzyme immunoassay.

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Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized caduceus symbol, which is a staff with two snakes entwined around it. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" are arranged in a circular pattern around the caduceus.

JUN 2 9 2005

Food and Drug Administration 2098 Gaither Road Rockville MD 20850

Ms. Denise Foulon Scientific Director Affinity Biologicals Inc. 1395 Sandhill Drive Ancaster, ON Canada, L9G 4V5

Re: K051054

Trade/Device Name: VisuLize™ Factor IX Antigen Kit Regulation Number: 21 CFR § 864.7290 Regulation Name: Factor Deficiency Test Regulatory Class: II Product Code: GGP Dated: April 25, 2005 Received: April 26, 2005

Dear Ms. Foulon:

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 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.

3

Page 2 -

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 L. Becker Jr.

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

Enclosure

4

Indications For Use Statement

510(k) Number (if known): K051054

Device Name: VisuLize™ Factor IX Antigen Kit

Indications for Use:

The VisuLize™ Factor IX Antigen Kit is intended for use as an in vitro diagnostic assay for the quantitative determination of Factor IX antigen in human plasma samples and Factor IX concentrates using the double antibody enzyme linked immuno-sorbent assay (ELISA).

Prescription Use (Part 21 CFR 801 Subpart D)

Over-The-Counter Use _________________________________________________________________________________________________________________________________________________________ AND/OR (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)

Souchesi Buntuta
Division Sign-Off

Office of In Vitro Diagnostic Device Evaluation and Safety

510(k) Kos1054