K Number
K973583
Device Name
ACE THEOPHYLLINE REAGENT, THEO CALIBRATORS
Date Cleared
1997-11-12

(51 days)

Product Code
Regulation Number
862.3880
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
ACE® Theophylline Reagent is intended for the quantitative determination of theophylline in serum using the ACE® clinical chemistry analyzer. Theophylline is a methylxanthine derivative which is widely used in the treatment of asthma, obstructive lung disease and neonatal apnea. The primary therapeutic effect of theophylline is due to relaxation of bronchial smooth muscle; however, theophylline has a variety of other effects. These include stimulation of the central nervous system and medullary respiratory centers, decreased peripheral vascular resistance, cardiac stimulation, and diuresis. In combination with other clinical data, monitoring serum theophylline levels may provide the physician with useful information to aid in adjusting patient dosage to achieve optimal therapeutic effect while avoiding drug toxicity.
Device Description
The ACE® Theophylline Reagent contains two reagents, an Antibody/Substrate reagent and an Enzyme Conjugate reagent. The assay uses specific antibodies to theophylline and is based on the competition of an enzyme glucose-6-phosphate dehydrogenase (G6PDH) labeled drug and the free drug from the sample, for a fixed amount of specific antibody binding sites. In the absence of free drug from the sample, the drug-labeled G6PDH is bound by the specific antibody and the enzyme activity is inhibited. This phenomenon creates a relationship between drug 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 device description details a standard enzymatic immunoassay for measuring theophylline levels. There is no mention of AI or ML in the intended use, device description, or performance studies. The mechanism is based on chemical reactions and enzymatic activity, not data-driven algorithms.

No.
This device is a reagent used for the quantitative determination of theophylline in serum, which aids in monitoring drug levels for treatment, but it is not a therapeutic device itself.

Yes

Explanation: The device is intended for the quantitative determination of theophylline in serum, and monitoring these levels "may provide the physician with useful information to aid in adjusting patient dosage to achieve optimal therapeutic effect while avoiding drug toxicity." This clearly indicates its use in aiding diagnosis and treatment decisions.

No

The device description clearly states it is a reagent kit containing two physical reagents (Antibody/Substrate and Enzyme Conjugate) used in conjunction with a clinical chemistry analyzer. This indicates it is a physical chemical product, not software.

Based on the provided information, the ACE® Theophylline Reagent is indeed an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use: The intended use explicitly states it's for the "quantitative determination of theophylline in serum." This involves testing a biological sample (serum) outside of the body to gain information about a patient's health status (theophylline levels).
  • Device Description: The description details a chemical assay that uses reagents to measure a substance in a sample. This is a hallmark of an in vitro diagnostic test.
  • Purpose: The purpose of monitoring theophylline levels is to "aid in adjusting patient dosage to achieve optimal therapeutic effect while avoiding drug toxicity." This directly relates to providing information for medical diagnosis, treatment, or prevention of disease.

Therefore, the ACE® Theophylline Reagent fits the definition of an In Vitro Diagnostic device.

N/A

Intended Use / Indications for Use

ACE® Theophylline Reagent is intended for use in the quantitative determination of theophylline in human serum.
ACE® Theophylline Reagent is intended for the quantitative determination of theophylline in serum using the ACE® clinical chemistry analyzer.

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

KIS

Device Description

The ACE® Theophylline Reagent contains two reagents, an Antibody/Substrate reagent and an Enzyme Conjugate reagent. The assay uses specific antibodies to theophylline and is based on the competition of an enzyme glucose-6-phosphate dehydrogenase (G6PDH) labeled drug and the free drug from the sample, for a fixed amount of specific antibody binding sites. In the absence of free drug from the sample, the drug-labeled G6PDH is bound by the specific antibody and the enzyme activity is inhibited. This phenomenon creates a relationship between drug 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.
Assay Range: 0.3 µg/mL to 40 µg/mL
Precision: Within Run

§ 862.3880 Theophylline test system.

(a)
Identification. A theophylline test system is a device intended to measure theophylline (a drug used for stimulation of the muscles in the cardiovascular, respiratory, and central nervous systems) in serum and plasma. Measurements obtained by this device are used in the diagnosis and treatment of theophylline overdose or in monitoring levels of theophylline to ensure appropriate therapy.(b)
Classification. Class II.

0

1000

יור אי 10 007

510(k) PREMARKET NOTIFICATION ACE® Theophylline Reagent

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® Theophylline Reagent
Common Name:Enzyme immunoassay for theophylline
Classification Name:Theophylline test
Predicate Device:Diagnostic Reagents, Inc. (DRI) - Theophylline Reagent [510(k) Number K952596]

Device Description

The ACE® Theophylline Reagent contains two reagents, an Antibody/Substrate reagent and an Enzyme Conjugate reagent. The assay uses specific antibodies to theophylline and is based on the competition of an enzyme glucose-6-phosphate dehydrogenase (G6PDH) labeled drug and the free drug from the sample, for a fixed amount of specific antibody binding sites. In the absence of free drug from the sample, the drug-labeled G6PDH is bound by the specific antibody and the enzyme activity is inhibited. This phenomenon creates a relationship between drug 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® Theophylline Reagent is intended for use in the quantitative determination of theophylline in human serum.

1

510(k) PREMARKET NOTIFICATION ACE® Theophylline Reagent

SUMMARY OF SAFETY AND EFFECTIVENESS

COMPARATIVE FEATURES OF PREDICATE AND PROPOSED DEVICES

PARAMETERPREDICATE DEVICEPROPOSED DEVICE
Trade NameDRI Theophylline Enzyme
ImmunoassayACE® Theophylline Reagent
Reference No.K952596TBD
AnalyteTheophyllineTheophylline
Intended UseQuantitative determination of
theophyllineQuantitative determination of
theophylline
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
10 µLSerum
5 µL
Assay System
Reagent 1 + Sample
Reagent 2
TemperatureIncubate 300 sec
Read 60 and 120 sec
37 °CIncubate 240 sec
Read 63 and 203 sec
37 °C
Detection Method
Type
Wavelength, nmSpectrophotometric
Bichromatic: 340/505Spectrophotometric
Bichromatic: 340/505

2

510(k) PREMARKET NOTIFICATION ACE® Theophylline 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 Run0.8 µg/mL to 40 µg/mL
--------------------------------------------------
(Per 21 CFR 801.109)

OR

Over-The-Counter Use
(Optional Format 1-2-96)