K Number
K061598
Device Name
HEMOSIL HOMOCYSTEINE AND CONTROLS
Date Cleared
2006-09-22

(106 days)

Product Code
Regulation Number
862.1377
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdparty
Intended Use
HemosIL Homocysteine is an automated latex enhanced immunoassay for the quantitative determination of total L-homocysteine in human citrated plasma on IL Coagulation Systems. Homocysteine (Hcy) values can assist in the diagnosis and treatment of patients suspected of having hyperhomocysteinemia or homocystinuria. HemosIL Homocysteine Controls are assayed quality controls intended to monitor the accuracy and precision of HemosIL Homocysteine on IL Coagulation Systems. For in vitro diagnostic use.
Device Description
HemosIL Homocysteine is an automated latex enhanced immunoassay for the quantitative determination of total L-homocysteine in human citrated plasma on IL Coagulation Systems. Homocysteine (Hcy) values can assist in the diagnosis and treatment of patients suspected of having hyperhomocysteinemia or homocystinuria. HemosIL Homocysteine Controls are assayed quality controls intended to monitor the accuracy and precision of HemosIL Homocysteine on IL Coagulation Systems. Hey levels in patient plasma are measured automatically on IL Coagulation Systems in three stages: 1. Reduction of mixed disulfides and protein-bound forms of Hcy present in the plasma samples to free Hcy. 2. Enzymatic conversion of free Hcy to S-adenosyl-L-homocysteine (SAH) by the SAH hydrolase (SAHH) in the presence of an excess of adenosine. 3. Competitive agglutination reaction between anti-SAH and SAH / conjugate. The degree of agglutination is inversely proportional to the concentration of total Hev in the sample and is determined by measuring the decrease of transmitted light caused by the aggregates.
More Information

No
The device description details a standard automated immunoassay process based on chemical reactions and light measurement, with no mention of AI or ML algorithms for data analysis or interpretation. The performance studies focus on traditional analytical metrics like correlation and precision.

No.
The device is an in vitro diagnostic immunoassay that quantifies homocysteine levels to assist in diagnosis and treatment. It does not directly treat or prevent a disease, which would make it a therapeutic device.

Yes

The 'Intended Use / Indications for Use' section states that "Homocysteine (Hcy) values can assist in the diagnosis and treatment of patients suspected of having hyperhomocysteinemia or homocystinuria," and the product is "For in vitro diagnostic use."

No

The device is an in vitro diagnostic (IVD) immunoassay that involves chemical reactions and is used on specific hardware (IL Coagulation Systems). It is not solely software.

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

The document explicitly states:

  • "For in vitro diagnostic use." in the Intended Use / Indications for Use section.
  • The device is an "automated latex enhanced immunoassay for the quantitative determination of total L-homocysteine in human citrated plasma". This describes a test performed on a sample taken from the human body, outside of the body, which is the definition of an in vitro diagnostic.
  • The results "can assist in the diagnosis and treatment of patients suspected of having hyperhomocysteinemia or homocystinuria." This indicates the device is used for diagnostic purposes.

N/A

Intended Use / Indications for Use

HemosIL Homocysteine is an automated latex enhanced immunoassay for the quantitative determination of total L-homocysteine in human citrated plasma on IL Coagulation Systems. Homocysteine (Hcy) values can assist in the diagnosis and treatment of patients suspected of having hyperhomocysteinemia or homocystinuria.

HemosIL Homocysteine Controls are assayed quality controls intended to monitor the accuracy and precision of HemosIL Homocysteine on IL Coagulation Systems.

For in vitro diagnostic use.

Product codes

LPS, JJX

Device Description

HemosIL Homocysteine is an automated latex enhanced immunoassay for the quantitative determination of total L-homocysteine in human citrated plasma on IL Coagulation Systems. Homocysteine (Hcy) values can assist in the diagnosis and treatment of patients suspected of having hyperhomocysteinemia or homocystinuria.

HemosIL Homocysteine Controls are assayed quality controls intended to monitor the accuracy and precision of HemosIL Homocysteine on IL Coagulation Systems.

Hcy levels in patient plasma are measured automatically on IL Coagulation Systems in three stages:

    1. Reduction of mixed disulfides and protein-bound forms of Hcy present in the plasma samples to free Hcy.
    1. Enzymatic conversion of free Hcy to S-adenosyl-L-homocysteine (SAH) by the SAH hydrolase (SAHH) in the presence of an excess of adenosine.
    1. Competitive agglutination reaction between anti-SAH and SAH / conjugate.

The degree of agglutination is inversely proportional to the concentration of total Hcy in the sample and is determined by measuring the decrease of transmitted light caused by the aggregates.

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 (study type, sample size, AUC, MRMC, standalone performance, key results)

Method Comparison
In a method comparison study evaluating 76 paired sodium citrate and EDTA patient plasma samples with homocysteine levels ranging from 4.2 to 56.7 umol/L, the correlation statistics for HemosIL Homocysteine (sodium citrate plasma) versus the predicate device (EDTA plasma) are shown below:

IL SystemSlopeInterceptr
ACL Advance0.82920.35030.9915

Precision
Within run and total precision assessed over multiple runs using two control levels and a plasma sample gave the following results:

ACL TOPMean (µmol/L)CV% (Within run)CV% (Total)
Hcy Control Level 111.42.04.8
Hcy Control Level 222.41.53.5
Hcy Plasma Sample8.12.95.5
ACL ELITE/ELITE PRO/ 8/9/10000Mean (µmol/L)CV% (Within run)CV% (Total)
Hcy Control Level 112.32.35.1
Hcy Control Level 222.84.36.2
Hcy Plasma Sample8.42.65.9
ACL Futura/ACL AdvanceMean (µmol/L)CV% (Within run)CV% (Total)
Hcy Control Level 110.53.56.0
Hcy Control Level 221.12.63.5
Hcy Plasma Sample7.93.55.6

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

Not Found

Predicate Device(s)

K992858

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 862.1377 Urinary homocystine (nonquantitative) test system.

(a)
Identification. A urinary homocystine (nonquantitative) test system is a device intended to identify homocystine (an analogue of the amino acid cystine) in urine. The identification of urinary homocystine is used in the diagnosis and treatment of homocystinuria (homosystine in urine), a heritable metabolic disorder which may cause mental retardation.(b)
Classification. Class II.

0

Ka61598

510(k) Summary HemosIL Homocysteine and HemosIL Homocysteine Controls

Submitted by:

Instrumentation Laboratory Co. 113 Hartwell Avenue Lexington, MA 02421

Contact Information:

Carol Marble, Regulatory Affairs Director Phone: 781-861-4467 Fax: 781-861-4207 cmarble@qa.ilww.com E-mail:

Summary Prepared:

June 7, 2006

Section 5

Device Trade Name:

HemosIL Homocysteine HemosIL Homocysteine Controls

Regulatory Information:

862.1377Urinary homocysteine (nonquantitative) test system
LPSClass II
862.1660Single (specified) analyte controls (assayed and unassayed)
JJXClass I

Identification of Predicate Device:

K992858 Abbott IMx Homocysteine

Device Intended Use and Description:

HemosIL Homocysteine is an automated latex enhanced immunoassay for the quantitative determination of total L-homocysteine in human citrated plasma on IL Coagulation Systems. Homocysteine (Hcy) values can assist in the diagnosis and treatment of patients suspected of having hyperhomocysteinemia or homocystinuria.

HemosIL Homocysteine Controls are assayed quality controls intended to monitor the accuracy and precision of HemosIL Homocysteine on IL Coagulation Systems.

Hey levels in patient plasma are measured automatically on IL Coagulation Systems in three stages:

    1. Reduction of mixed disulfides and protein-bound forms of Hcy present in the plasma samples to free Hcy.
    1. Enzymatic conversion of free Hcy to S-adenosyl-L-homocysteine (SAH) by the SAH hydrolase (SAHH) in the presence of an excess of adenosine.
    1. Competitive agglutination reaction between anti-SAH and SAH / conjugate.

The degree of agglutination is inversely proportional to the concentration of total Hev in the sample and is determined by measuring the decrease of transmitted light caused by the aggregates.

HemosIL Homocysteine Kit and Controls 510(k)

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SEP 2 2 2006

1

510(k) Summary HemosIL Homocysteine and HemosIL Homocysteine Controls

Statement of Technological Characteristics of the Device Compared to Predicate Device:

HemosIL Homocysteine is substantially equivalent to the commercially available predicate device (Abbott IMx Homocysteine) in performance and intended use.

Summary of Performance Data:

Method Comparison

In a method comparison study evaluating 76 paired sodium citrate and EDTA patient plasma samples with homocysteine levels ranging from 4.2 to 56.7 umol/L, the correlation statistics for HemosIL Homocysteine (sodium citrate plasma) versus the predicate device (EDTA plasma) are shown below:

IL SystemSlopeInterceptr
ACL Advance0.82920.35030.9915

Precision

Within run and total precision assessed over multiple runs using two control levels and a plasma sample gave the following results:

ACL TOPMean (µmol/L)CV% (Within run)CV% (Total)
Hcy Control Level 111.42.04.8
Hcy Control Level 222.41.53.5
Hcy Plasma Sample8.12.95.5
ACL ELITE/ELITE PRO/
8/9/10000Mean (µmol/L)CV% (Within run)CV% (Total)
Hcy Control Level 112.32.35.1
Hcy Control Level 222.84.36.2
Hcy Plasma Sample8.42.65.9
ACL Futura/ACL AdvanceMean (µmol/L)CV% (Within run)CV% (Total)
Hcy Control Level 110.53.56.0
Hcy Control Level 221.12.63.5
Hcy Plasma Sample7.93.55.6

2

Image /page/2/Picture/0 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo features a stylized eagle with three stripes forming its body and wings. The eagle is facing to the right. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular pattern around the eagle.

DEPARTMENT OF HEALTH & HUMAN SERVICES

Public Health Service

Food and Drug Administration 2098 Gaither Road Rockville MD 20850

Ms. Carol Marble Instrumentation Laboratory Company 113 Hartwell Ave. Lexington MA 02421

SEP 2 2 2006

Re: K061598

Trade/Device Name: Hemosit Homocysteine and HemosIL Homocysteine Controls Regulation Number: 21 CFR 862.1377 Regulation Name: Urinary homocystine (non-quantitative) test system Regulatory Class: Class II Product Code: LPS, JJX Dated: August 21, 2006 Received: August 22, 2006

Dear Ms. Marble:

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).

3

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 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 (240) 276-0484. Also, please note the regulation entitled; "Misbranding by reference to premarket wotification" (21 CFR 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 Gutierrez

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

4

Indications for Use Statement

510(k) Number (if known): Kob 1598

Device Name:

HemosIL Homocysteine and HemosIL Homocysteine Controls

Indications for Use:

HemosIL Homocysteine is an automated latex enhanced immunoassay for the quantitative determination of total L-homocysteine in human citrated plasma on IL Coagulation Systems. Homocysteine (Hcy) values can assist in the diagnosis and treatment of patients suspected of having hyperhomocysteinemia or homocystinuria.

HemosIL Homocysteine Controls are assayed quality controls intended to monitor the accuracy and precision of HemosIL Homocysteine on IL Coagulation Systems.

For in vitro diagnostic use.

V Prescription Use (Part 21 CFR 801 Subpart D)

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)

Carol C. Benson
Division Sign-Off

Office of In Vitro Diagnostic Device Evaluation and Safety

K06 1598

HemosIL Homocysteine Kit and Controls 510(k)

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