(357 days)
The MICT® TSH is a magnetic lateral flow immunoassay for the in-vitro quantitative determination of TSH in human serum. The measurements of thyroid stimulating hormone (TSH) produced by the anterior pituitary are used in the diagnosis of thyroid or pituitary disorders. The MICT System is intended for use in clinical laboratories.
The MICT® TSH Immunoassay for the quantitative determination of TSH in human serum is designed for use on MICT® Instrument.
MICT® TSH Device Reagents:
- Solid phase nitrocellulose membrane device with two detection zones:
a. Control line region containing a polyclonal goat anti-rabbit IgG antibody, and
b. Test line region containing a monoclonal anti-TSH antibody - Lyophilized conjugate tube containing the monoclonal anti-TSH antibody covalently coupled to 300 nm super paramagnetic particles.
The MICT® Immunoassay is a "sandwich" magnetic chromatographic assay.
The provided 510(k) summary describes the MICT® TSH device and its performance characteristics. This is a medical device for in-vitro quantitative determination of TSH in human serum, not an AI/ML device, and therefore does not have acceptance criteria and a study design in the format requested for AI/ML devices. However, I can extract the relevant performance data as presented.
Here's the information based on the provided text, adapted to the closest relevant categories for a non-AI/ML device:
1. Table of Acceptance Criteria and Reported Device Performance
For this type of device, "acceptance criteria" are generally inferred from a comparison to a predicate device and established analytical performance benchmarks for immunoassays. The study demonstrates substantial equivalence to the predicate device (FastPack® TSH).
| Feature | Acceptance Criteria (Implied by Predicate) | Reported Device Performance (MICT® TSH) |
|---|---|---|
| Precision (Within Lab) | Demonstrate comparable or better precision to the predicate device. | Site 1: 1. 0.191 µIU/mL (14.1%CV)2. 0.29 µIU/mL (9.4%CV)3. 0.83 µIU/mL (9.4%CV)4. 3.7 µIU/mL (7.8%CV)5. 46.7 µIU/mL (8.8%CV)Site 2: 1. 0.191 µIU/mL (13.3%CV)2. 0.29 µIU/mL (10.1%CV)3. 0.87 µIU/mL (7.8%CV)4. 4.1 µIU/mL (9.1%CV)5. 46.6 µIU/mL (9.5%CV)Site 3: 1. 0.187 µIU/mL (14.4%CV)2. 0.29 µIU/mL (9.5%CV)3. 0.87 µIU/mL (7.6%CV)4. 3.95 µIU/mL (9.1%CV)5. 48.4 µIU/mL (7.5%CV)(Predicate: Site 1 Total Within Lab: 0.54 µIU/mL (20.0%CV), 1.54 µIU/mL (9.7%CV), 4.69 µIU/mL (7.0%CV), 46.30 µIU/mL (9.5%CV)) |
| Sensitivity | Comparable or better than predicate device (Predicate Analytical = 0.043 µIU/mL, Functional = 0.13 µIU/mL) | LOB = 0.04 µIU/mLLOD = 0.077 µIU/mLLOQ = 0.077 µIU/mL |
| Method Comparison (Correlation with Predicate) | High correlation (e.g., r > 0.95 and slope/intercept close to 1/0) | Site 1: MICT = 0.97 FastPack - 0.27 (n=66, r = 0.99)Site 2: MICT = 0.93 FastPack - 0.07 (n=74, r = 0.99)Site 3: MICT = 0.98 FastPack 0.00 (n=64, r = 0.99)Pooled: MICT = 0.96 FastPack - 0.12 (n=204, r = 0.99) |
| Interfering Substances | No significant interference at specified concentrations. | Bilirubin: No interference up to 40 mg/dLHemoglobin: No interference up to 1000 mg/dLTriglycerides: No interference up to 3200 mg/dLPhospholipid: No interference up to 800 mg/dL |
| Specificity | No significant cross-reactivity with related hormones. | No interference from 500 mIU/mL LH and 500 mIU/mL FSH. |
2. Sample Size Used for the Test Set and Data Provenance
The method comparison study used a total of n=204 samples.
- Site 1: n=66
- Site 2: n=74
- Site 3: n=64
The data provenance is not explicitly stated in terms of country of origin or whether it's retrospective/prospective. As a clinical laboratory device study, these are typically prospective evaluations of clinical samples.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications of Those Experts
Not applicable. This is an immunoassay device, and "ground truth" for TSH levels is established by the comparative measurement of known reference methods or another analytically validated device (the predicate device in this case), not by expert interpretation.
4. Adjudication Method for the Test Set
Not applicable. See point 3.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
Not applicable. This is an immunoassay device, not an AI/ML device used by human readers for interpretation.
6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) was done
Not applicable. This is an automated immunoassay system; its performance is standalone in the sense that the instrument provides the quantitative reading.
7. The Type of Ground Truth Used
The "ground truth" (or reference method) for the method comparison study was the Qualigen FastPack® TSH device. This is a legally marketed predicate device, implying its results are accepted as a valid reference for TSH determination.
8. The Sample Size for the Training Set
Not applicable. This device is an immunoassay, not an AI/ML system that requires a "training set." The device's calibration curve is factory-generated.
9. How the Ground Truth for the Training Set was Established
Not applicable. See point 8. The device uses a factory-generated master curve with a single calibration per lot, implying that the "calibration" (analogous to training for an AI model) is established by the manufacturer using a set of known standards.
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MAR - 9 2012
510(k) Summary
MICT® TSH Using the MICT® Instrument
This summary of 510(k) safety and effectiveness is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92.
| 1. | Submittername, address,contact | MagnaBioSciences LLC6325 Lusk Blvd.San Diego, CA 92121 | |
|---|---|---|---|
| Telephone:Fax: | (858)481-4400(858-481-7410 | ||
| Contact Person: | James L. Wyatt | ||
| Date Prepared: | February 2012 | ||
| 2. | Device name | Proprietary name: | MICT® TSHUsing the MICT® Instrument |
| Common name: | Magnetic ImmunoChomatographyic Test for thedetermination of TSH | ||
| Classification Name: | Quantitative Determination of TSH in HumanSerum | ||
| 3. | Predicatedevice | Qualigen FastPack® TSH (K052301) | |
| 4. | Devicedescription | The MICT® TSH Immunoassay for the quantitative determination of TSHin human serum is designed for use on MICT® Instrument. | |
| MICT® TSH Device Reagents | |||
| 1. Solid phase nitrocellulose membrane device with two detectionzones:a. Control line region containing a polyclonal goat anti-rabbitIgG antibody, andb. Test line region containing a monoclonal anti-TSHantibody |
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MagnaBioSciences, LLC
510(k) Summary (continued)
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- Lyophilized conjugate tube containing the monoclonal anti-TSH antibody covalently coupled to 300 nm super paramagnetic particles.
The MICT® Immunoassay is a "sandwich" magnetic chromatographic assay:
- Lyophilized conjugate tube containing the monoclonal anti-TSH antibody covalently coupled to 300 nm super paramagnetic particles.
-
Step 1: Sample or control (100 uL) is added to the lyophilized . conjugate tube and mixed using an up and down motion in the pipet.
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Set 2: Transfer the entire contents of the sample/conjugate to the ● sample port on the nitrocellulose test cassette.
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Step 3: The sample/conjugate will chromatograph along the . nitrocellulose membrane for 30 minutes, but not longer than 45 minutes after starting the test..
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Step 4: Insert the test cassette into the MICT magnetic Instrument . and press start after barcode is read.
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Results will automatically print. ●
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The MICT® TSH is a magnetic lateral flow immunoassay for the in-vitro ડ. Intended use quantitative determination of TSH in human serum. The measurements of thyroid stimulating hormone (TSH) produced by the anterior pituitary are used in the diagnosis of thyroid or pituitary disorders. The MICT TSH immunoassay is designed for use with the MCIT instrument. The MICT System is intended for use in clinical laboratories.
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The following tables compare the MICT® TSH with the Qualigen Comparison to 6. Predicate Device FastPack® TSH.
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510(k) Summary (continued)
MagnaBioSciences, LLC
| Feature | MICT® TSH | FastPack® TSH |
|---|---|---|
| Intended Use. | The MICT® TSH is a magnetic lateral flow immunoassay for the in-vitro quantitative determination of TSH in human serum. The measurements of thyroid stimulating hormone (TSH) produced by the anterior pituitary are used in the diagnosis of thyroid or pituitary disorders. The MICT System is intended for use in clinical laboratories. | FastPack® TSH Immunoassay is a paramagnetic particle immunoassay for the in-vitro quantitative determination of TSH in human plasma. The measurements of thyroid stimulating hormone (TSH) produced by the anterior pituitary are used in the diagnosis of thyroid or pituitary disorders. The FastPack TSH Immunoassay is designed for use with the FastPack System |
| Assay Methodology: | Sandwich immunoassay | Sandwich immunoassay |
| Storage Condition: | 1 - 30°C | 2-8 °C |
| Data Analysis | Internal data reduction via microcomputer | Internal data reduction via microcomputer |
| Test Processing | Semi-Automated | Semi-Automated |
| Sample Type: | Serum | Plasma |
| Detector: | Magnetic Instrument | Photomultiplier Tube (PMT) |
| Label | Super Magnetic Particles | Alkaline Phosphatase -Lucegine |
| Sample Volume | 100 µL | 100 µL |
| Assay Range | 0.13 to 100 µIU/mL | 0.13 to 100 µIU/mL |
| Instrument Required | MICT® Instrument | Qualigen FastPack® System |
| Antibody | Monoclonal/Monoclonal | Monoclonal/Monoclonal |
| Solid Phase | Nitrocellulose Membrane | Magnetic Particles |
| Detection | Magnetic Moment | Chemiluminescence |
| Calibration | Factory generated master curve with single calibration per lot, calibration is stable until expiration of the assay lot. | Factory generated calibration curve using 6 standards.Recalibration required 14 day at the customer site. |
| Throughput | Single Sample | Single Sample |
| Time to Result | 30 minutes | 15 minutes |
| Reagents Supplied as | Box of 20 reagent cassettes with lyophilized conjugate tubes | Box of 50 individual Tests |
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MagnaBioSciences, LLC
1
| Performance Characteristics: | MICT® TSH | FastPack® TSH | ||
|---|---|---|---|---|
| Feature | MeanµIU/mLWithin Lab | %CV | MeanµIU/mLTotal Within Lab | %CV |
| Precision | Site 1 | |||
| 10.191 | 14.1 | 10.54 | 20.0 | |
| 20.29 | 9.4 | 21.54 | 9.7 | |
| 30.83 | 9.4 | 34.69 | 7.0 | |
| 43.7546.7 | 7.88.8 | 446.30 | 9.5 | |
| Site 2 | ||||
| 10.191 | 13.3 | |||
| 20.29 | 10.1 | |||
| 30.87 | 7.8 | |||
| 44.1546.6 | 9.19.5 | |||
| Site 3 | ||||
| 10.187 | 14.4 | |||
| 20.29 | 9.5 | |||
| 30.87 | 7.6 | |||
| 43.95548.4 | 9.17.5 | |||
| Sensitivity | LOB = 0.04 µIU/mLLOD = 0.077 µIU/mLLOQ = 0.077 µIU/mL | Analytical = 0.043 µIU/mLFunctional = 0.13 µIU/mL | ||
| MethodComparison | Three site performance evaluation of MICT vs. QualigeFastPack TSH Method.Site 1: MICT = 0.97 FastPack -0.27 (n=66, r = 0.99)Site 2: MICT = 0.93 FastPack -0.07 (n=74, r = 0.99)Site 3: MICT = 0.98 FastPack 0.00 (n=64, r = 0.99)Pooled: MICT = 0.96 FastPack -0.12 (n=204, r = 0.99) | |||
| InterferingSubstances | No interference up to: | No interference up to: | ||
| Bilirubin | 40 mg/dL | 40 mg/dL | ||
| Hemoglobin | 1000 mg/dL | 1000 mg/dL | ||
| Triglycerides | 3200 mg/dL | 1000 mg/dL | ||
| Phospholipid | 800 mg/dL | -- | ||
| Specificity | 500 mIU/mL LH500 mIU/mL FSH | n.d | 500 mIU/mL LH500 mIU/mL FSH | n.d |
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/4/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular arrangement of text that reads "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA". Inside the circle is a stylized image of an eagle or other bird with outstretched wings. The bird is facing to the left.
Food and Drug Administration
10903 New Hampshire Avenue Silver Spring, MD 20993
MagnaBioSciences, LLC. c/o James Wyatt, PhD Chief Technical Officer 6325 Lusk Blvd. San Diego, CA 92121 .
MAR - 9 2012
K110761 Re:
Trade Name: MICT® TSH and MICT® Instrument Regulation Number: 21 CFR §862.1690 Regulation Name: Thyroid Stimulating Hormone Test System Regulatory Class: II Product Codes: JLW, JJQ Dated: February 28, 2012 Received: March 6, 2012
Dear Dr. Wyatt:
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); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); and good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820). .
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Page 2
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of In Vitro Diagnostic Device Evaluation and Safety at (301) 796-5450. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding postmarket surveillance, please contact CDRH's Office of Surveillance and Biometric's (OSB's) Division of Postmarket Surveillance at (301) 796-5760. For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/Medical
Devices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance ...
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) 796-5680 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm
Sincerely yours,
V
Counney H. Lias, Ph.D. Director Division of Chemistry and Toxicology Devices
Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health
Enclosure
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Indications for Use Form
510(k) Number: K110761
Device Name: MICT®TSH
Indications for Use:
The MICT® TSH is a magnetic lateral flow immunoassay for the in-vitro quantitative determination of TSH in human serum. The measurements of thyroid stimulating hormone (TSH) produced by the anterior pituitary are used in the diagnosis of thyroid or pituitary disorders. The MICT System is intended for use in clinical laboratories.
Prescription Use) × (Part 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 ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Autie Charles
Division Sign-Off Office of In Vitro Diagnostic Device Evaluation and Safety
510(k) 110761
2 Page 1 of
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Indications for Use Form
510(k) Number (if known): K110761 ·
Device Name: MICT® Instrument
Indications for Use:
The MICT® TSH is a magnetic lateral flow immunoassay for the in-vitro quantitative determination of TSH in human serum. The measurements of thyroid stimulating hormone (TSH) produced by the anterior pituitary are used in the diagnosis of thyroid or pituitary disorders. The MICT System is intended for use in clinical laboratories.
Prescription Use) (Part 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 ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Qute Chuler
Division Sign-Off Office of In Vitro Diagnostic Device Evaluation and Safety
510(k) 110761
Page 1 of 2
§ 862.1690 Thyroid stimulating hormone test system.
(a)
Identification. A thyroid stimulating hormone test system is a device intended to measure thyroid stimulating hormone, also known as thyrotrophin and thyrotrophic hormone, in serum and plasma. Measurements of thyroid stimulating hormone produced by the anterior pituitary are used in the diagnosis of thyroid or pituitary disorders.(b)
Classification. Class II.