K Number
K981377
Device Name
ACE T4 REAGENT T4 CALIBRATORS
Date Cleared
1998-06-10

(55 days)

Product Code
Regulation Number
862.1700
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
ACE® T4 Reagent is intended for use in the quantitative determination of thyroxine in human serum. ACE® T4 Reagent is used in the diagnosis and treatment of thyroid disorders. It is intended for the quantitative determination of thyroxine in serum using the ACE clinical chemistry analyzer.
Device Description
The ACE® T4 Reagent contains two reagents, an Antibody/Substrate reagent and an Enzyme Coniugate reagent. The assay uses 8-anilino-1-naphthalene sulfonic acid (ANS) to dissociate thyroxine from the plasma-binding proteins. The dissociated thyroxine in the sample competes with an enzyme glucose-6-phosphate dehydrogenase (G6PDH) labeled thyroxine for a fixed amount of anti-thyroxine specific antibody binding sites. In the absence of thyroxine from the sample, the thyroxine-labeled G6PDH is bound by the specific antibody and the enzyme activity is inhibited. This phenomenon creates a relationship between thyroxine concentration in the sample and the enzyme activity. The enzyme G6PDH activity is determined bichromatically on the ACE® at 340/505 nm by measuring its ability to convert NAD* to NADH.
More Information

Not Found

No
The description details a standard immunoassay reagent and its mechanism of action, which relies on chemical reactions and enzymatic activity, not AI/ML algorithms. There is no mention of AI, ML, or related concepts in the provided text.

No
The device is a reagent used for diagnostic testing to measure thyroxine levels, which aids in the diagnosis and treatment of thyroid disorders, rather than directly providing therapy.

Yes

The "Intended Use / Indications for Use" states that the ACE® T4 Reagent is "used in the diagnosis and treatment of thyroid disorders." Additionally, it performs "quantitative determination of thyroxine in human serum," which is a diagnostic measurement.

No

The device description clearly outlines a chemical reagent kit used for laboratory testing, not a software application.

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

Here's why:

  • Intended Use: The intended use explicitly states it is for the "quantitative determination of thyroxine in human serum." This is a test performed on a biological sample (serum) outside of the body to provide information about a person's health status.
  • Diagnosis and Treatment: The intended use also states it is "used in the diagnosis and treatment of thyroid disorders." This directly links the test results to clinical decision-making.
  • Device Description: The description details a chemical assay that measures a substance (thyroxine) in a sample (serum) using reagents and an analyzer. This is characteristic of an in vitro diagnostic test.
  • Predicate Device: The mention of a "Predicate Device(s)" with a K number (K944703) indicates that this device is being compared to a previously cleared device, which is a common process for IVDs seeking regulatory approval.

All of these points align with the definition of an In Vitro Diagnostic device.

N/A

Intended Use / Indications for Use

ACE® T4 Reagent is intended for use in the quantitative determination of thyroxine in human serum.

ACE" T4 Reagent is used in the diagnosis and treatment of thyroid disorders. It is intended for the quantitative determination of thyroxine in serum using the ACE clinical chemistry analyzer.

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

KLI, JIS

Device Description

The ACE® T4 Reagent contains two reagents, an Antibody/Substrate reagent and an Enzyme The assay uses 8-anilino-1-naphthalene sulfonic acid (ANS) to dissociate Coniugate reagent. thyroxine from the plasma-binding proteins. The dissociated thyroxine in the sample competes with an enzyme glucose-6-phosphate dehydrogenase (G6PDH) labeled thyroxine for a fixed amount of anti-thyroxine specific antibody binding sites. In the absence of thyroxine from the sample, the thyroxine-labeled G6PDH is bound by the specific antibody and the enzyme activity is inhibited. This phenomenon creates a relationship between thyroxine concentration in the sample and the enzyme activity. The enzyme G6PDH activity is determined bichromatically on the ACE® at 340/505 nm by measuring its ability to convert NAD* to NADH.

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)

Non-clinical test results submitted in the premarket notification include within-run and between-run precision and method correlation.
Performance Summary
Assay Range: 0.47 µg/dL to 20 µg/dL
Precision: Within Run 3.7 %CV, Between Run 4.6 %CV
Correlation vs Hitachi 717: Slope 1.070, Intercept -0.405, r 0.9824, N 50.

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

Precision: Within Run 3.7 %CV, Between Run 4.6 %CV
Correlation r: 0.9824

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.

K944703

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

§ 862.1700 Total thyroxine test system.

(a)
Identification. A total thyroxine test system is a device intended to measure total (free and protein bound) thyroxine (thyroid hormone) in serum and plasma. Measurements obtained by this device are used in the diagnosis and treatment of thyroid diseases.(b)
Classification. Class II (special 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

510(k) PREMARKET NOTIFICATION ACE® T4 Reagent

K 981377

SUMMARY OF SAFETY AND EFFECTIVENESS

In lieu of a 510(k) statement under 513(i) of the Act, this Summary of Safety and Effectiveness is provided as a 510(k) summary for disclosure to any other persons/companies without specific written authorization from Schiapparelli Biosystems, Inc.

Submitter

Schiapparelli Biosystems, Inc. 368 Passaic Avenue Fairfield, NJ 07004 Phone: (973) 882-8630

Contact Person

Steven Dalessio Manager, Quality Assurance/Regulatory Affairs Phone: (973) 882-8630

Device Names

Proprietary Name:ACE® T4 Reagent
Common Name:Enzyme immunoassay for thyroxine
Classification Name:Thyroxine test
Predicate Device:Diagnostic Reagents, Inc. (DRI) - Thyroxine (T4) Reagent
[510(k) Number K944703]

Device Description

The ACE® T4 Reagent contains two reagents, an Antibody/Substrate reagent and an Enzyme The assay uses 8-anilino-1-naphthalene sulfonic acid (ANS) to dissociate Coniugate reagent. thyroxine from the plasma-binding proteins. The dissociated thyroxine in the sample competes with an enzyme glucose-6-phosphate dehydrogenase (G6PDH) labeled thyroxine for a fixed amount of anti-thyroxine specific antibody binding sites. In the absence of thyroxine from the sample, the thyroxine-labeled G6PDH is bound by the specific antibody and the enzyme activity is inhibited. This phenomenon creates a relationship between thyroxine concentration in the sample and the enzyme activity. The enzyme G6PDH activity is determined bichromatically on the ACE® at 340/505 nm by measuring its ability to convert NAD* to NADH.

Intended Use of the Device

ACE® T4 Reagent is intended for use in the quantitative determination of thyroxine in human serum.

1

510(k) PREMARKET NOTIFICATION ACE® T4 Reagent

SUMMARY OF SAFETY AND EFFECTIVENESS

COMPARATIVE FEATURES OF PREDICATE AND PROPOSED DEVICES

PARAMETERPREDICATE DEVICEPROPOSED DEVICE
Trade NameDRI Thyroxine (T4) Enzyme
ImmunoassayACE® T4 Reagent
Reference No.K944703TBD
AnalyteThyroxineThyroxine
Intended UseQuantitative determination of
thyroxineQuantitative determination of
thyroxine
MethodologyEnzyme immunoassayEnzyme immunoassay
Reagents
Reagent 1
VolumeLiquid; Antibody/Substrate
210 µLLiquid; Antibody/Substrate
210 µL
Reagent 2
VolumeLiquid; Enzyme conjugate
70 µLLiquid; Enzyme conjugate
70 µL
Specimen
Type
VolumeSerum and plasma
5 µLSerum
5 µL
Assay System
Reagent 1 + Sample
Reagent 2
TemperatureIncubate 288 sec
Read 72 to 132 sec (12 sec intervals)
37 °CIncubate 240 sec
Read 63 and 203 sec
37 °C
Detection Method
Type
Wavelength, nmSpectrophotometric
Bichromatic: 340/415Spectrophotometric
Bichromatic: 340/505

2

510(k) PREMARKET NOTIFICATION ACE® T4 Reagent

SUMMARY OF SAFETY AND EFFECTIVENESS

PERFORMANCE ASSESSMENT

Non-clinical test results submitted in the premarket notification include within-run and between-run precision and method correlation. Following is a data summary.

PARAMETERPREDICATE DEVICEPROPOSED DEVICE
Performance Summary
Assay Range
Precision
Within Run
Between Run0.7 µg/dL to 20 µg/dL
5.4 %CV
4.3 %CV0.47 µg/dL to 20 µg/dL
3.7 %CV
4.6 %CV
Correlation vs
Slope
Intercept
r
NCommercial thyroxine assay
1.02
-0.63
0.993
108Hitachi 717
1.070
-0.405
0.9824
50

Based on these data, the Schiapparelli Biosystems ACE® T4 Reagent is substantially equivalent to the predicate device (Diagnostic Reagents, Inc. Thyroxine (T4) Enzyme Immunoassay). On this basis, the reagent is determined to be safe and effective for its intended use. Performance details are included in the reagent product labeling.

3

Image /page/3/Picture/2 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized eagle with its wings spread, and the words "DEPARTMENT OF HEALTH & HUMAN SERVICES-USA" are arranged in a circle around the eagle. The eagle is black and white, and the text is in a simple, sans-serif font. The logo is simple and recognizable, and it is often used on official documents and websites related to the U.S. Department of Health & Human Services.

JUN 1 0 1998

Food and Drug Administration 2098 Gaither Road Rockville MD 20850

Steven Dalessio . Manager, Quality Assurance/Regulatory Affairs Schiapparelli Biosystems, Inc. 368 Passaic Avenue 07004 Fairfield, New Jersey

Re: K981377 ACE® T4 Reagent II Requlatory Class: Product Code: KLI, JIS April 15, 1998 Dated: Received: April 16, 1998

Dear Mr. Dalessio:

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 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 (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Requlations, Title 21, Parts 800 to 895. ਕੇ 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 regulations.

4

Page 2

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 leqally 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 Bitman

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

5

98

l of Page 1

LabelsValues
510(k) Number (if known):K981377
Device Name:ACE" T4 Reagent

Indications For Use:

..

ACE" T4 Reagent is used in the diagnosis and treatment of thyroid disorders. It is intended for the quantitative determination of thyroxine in serum using the ACE clinical chemistry analyzer.

(Division Sign-Off)
---------------------

Division of Clinical Laboratory Devices

510(k) NumberK981377
------------------------

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

Prescription Use
(Per 21 CFR 801.109)

OR

Over-The-Counter Use_

ﺔ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤ

(Optional Format 1-2-96)