(123 days)
Not Found
No
The device description details a lateral flow immunoassay, which is a chemical reaction-based test. There is no mention of computational analysis, algorithms, or learning processes.
No
The device is a diagnostic testing kit used to detect TSH levels, which can indicate hypothyroidism. It does not provide treatment or therapy.
Yes
The device is a qualitative assay for detecting TSH, an elevated level of which can indicate primary hypothyroidism. This detection helps professionals in diagnosing a medical condition.
No
The device description clearly outlines a physical, in-vitro diagnostic (IVD) test kit that uses antibodies and a membrane to detect TSH in a blood sample. It involves chemical reactions and visual interpretation of color bands, not software processing of data.
Yes, based on the provided information, the ThyroTest is an IVD (In Vitro Diagnostic).
Here's why:
- Intended Use: The intended use explicitly states it's a "qualitative assay for the detection of an increased level of TSH (Thyroid Stimulating Hormone)" using "whole blood." This clearly indicates it's a test performed in vitro (outside the body) on a biological sample (blood) to diagnose or provide information about a medical condition (primary hypothyroidism).
- Device Description: The description details the components and mechanism of the test, which involves antibodies and a membrane to detect a substance (TSH) in a blood sample. This is characteristic of an in vitro diagnostic assay.
- Sample Type: The test uses "whole blood," which is a biological specimen.
- Performance Studies: The performance studies compare the device to another FDA-approved TSH method, which is typical for IVD submissions.
- Predicate Device: The predicate device listed is also a "One-Step Whole Blood Rapid TSH Assay," further confirming the nature of the device as an IVD.
All these elements align with the definition and characteristics of an In Vitro Diagnostic device.
N/A
Intended Use / Indications for Use
The ThyroTest is a whole blood, qualitative assay for the detection of an increased level of TSH (Thyroid Stimulating Hormone). An increase level of TSH can be an indication of primary hypothyroidism. For professional use only.
Product codes
JLW
Device Description
Purified Polyclonal anti TSH antibodies are passively absorbed on the absorbent membrane. Anti-TSH monoclonal antibodies are absorbed on colloidal gold and then mixed in a protein matrix to obtain the final dye conjugate.
Once applied to the specimen well, blood sample undergoes vertical capillary filtration through the porous filtration system. The blood cells are retained in the top layers while the liquid phase (plasma) reaches the bottom membrane layer. The buffer, when applied to the specimen well, flows along the bottom membrane layer, mixes with plasma and migrates horizontally along the test membrane. If TSH is present in the sample in concentrations at or above the detection level, labeled antibody-dye conjugates binds to it, forming an antigen-antibody-dye complex. This complex is then captured by antibody immobilized in the Test Zone ("T") of the membrane, producing a visible pink-rose color band on the membrane. A similarly colored conjugate is captured by a parallel immunochemical reaction in the Control Zone ("C") of the membrane. A distinctive control band is the marker of proper test performance.
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
For professional use only.
A trained Laboratory Technician performed testing in a CLIA registered laboratory.
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
A three center clinical trial was done to compare the performance of ThyroTest to an approved FDA TSH method, the Abbott AxSYM.
Total Participants: 289
Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)
Clinical trial, 289 participants.
Key results:
Positive Agreement: 81.25%
Negative Agreement: 97.28%
Correlation: 95.50%
Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)
Positive Agreement: 81.25%
Negative Agreement: 97.28%
Correlation: 95.50%
Predicate Device(s)
Reference Device(s)
Not Found
Predetermined Change Control Plan (PCCP) - All Relevant Information
Not Found
§ 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.
0
JUL 2 5 2003
510k Summary
Date of Summary: June 26, 2003
Product Name:
ThyroTest
Sponsor:
ThyroTec, Inc. 1801 Horseshoe Pike, Suite 1 Brandywine Business Center Honey Brook, PA 19344 Tel: 610.942.8970 Fax: 610.942.8973
Manufacturer:
VEDA LAB Rue del'Expansion ZAT du Londeau CERISE-B.P. 181 61006 Alencon Cedex France
Correspondent:
MDC Associates Fran White Regulatory Consultant 163 Cabot Street Beverly, MA 01915 Tel: 978.927.3808 Fax: 978.927.1308 Email: fran@mdcassoc.com
Substantially Equivalent Devices:
Product: ThyroChek One-Step Whole Blood Rapid TSH Assay
Manufacturer: Little Nell Labs, Inc. K990658
1
INTENDED USE:
The ThyroTest is a whole blood, qualitative assay for the detection of an increased level of TSH (Thyroid Stimulating Hormone). An increase level of TSH can be an indication of primary hypothyroidism. For professional use only.
SUMMARY OF TECHNOLOGY:
Purified Polyclonal anti TSH antibodies are passively absorbed on the absorbent membrane. Anti-TSH monoclonal antibodies are absorbed on colloidal gold and then mixed in a protein matrix to obtain the final dye conjugate.
Once applied to the specimen well, blood sample undergoes vertical capillary filtration through the porous filtration system. The blood cells are retained in the top layers while the liquid phase (plasma) reaches the bottom membrane layer. The buffer, when applied to the specimen well, flows along the bottom membrane layer, mixes with plasma and migrates horizontally along the test membrane. If TSH is present in the sample in concentrations at or above the detection level, labeled antibody-dye conjugates binds to it, forming an antigen-antibody-dye complex. This complex is then captured by antibody immobilized in the Test Zone ("T") of the membrane, producing a visible pink-rose color band on the membrane. A similarly colored conjugate is captured by a parallel immunochemical reaction in the Control Zone ("C") of the membrane. A distinctive control band is the marker of proper test performance.
PERFORMANCE DATA:
A three center clinical trial was done to compare the performance of ThyroTest to an approved FDA TSH method, the Abbott AxSYM. The following is a summary of the data generated.
| Total Participants | 289 |
|---|---|
| Total ThyroTest Positives | 33 |
| True Positives (TP) | 26 |
| False Positives (FP) | 7 |
| Total Negatives | 256 |
| True Negatives | 250 |
| False Negatives | 6 |
2
Performance Characteristics
| AxSYM Positive | AxSYM Negative | Total | |
|---|---|---|---|
| ThyroTest Positive | 26 | 7 | 33 |
| ThyroTest Negative | 6 | 250 | 256 |
| Total | 32 | 257 | 289 |
| Positive Agreement | 81.25% |
|---|---|
| Negative Agreement | 97.28% |
| Correlation | 95.50% |
3
STATEMENT OF SAFETY AND EFFICACY:
The ThyroTest when compared to an FDA cleared TSH method demonstrated a correlation when compared to another FDA cleared method of 96% with a positive agreement of 81% and a negative agreement of 97%.
These data clearly demonstrate the safety and efficacy of the ThyroTest and further confirm the accuracy, sensitivity and specificity of this product when compared to a substantially equivalent device currently being sold for professional use. A trained Laboratory Technician performed testing in a CLIA registered laboratory.
4
S
Public Health Service
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
JUL 2 5 2003
ThyroTec, Inc. c/o Ms. Fran White Regulatory Consultant MDC Associates 163 Cabot Street Beverly, MA 01915
Re: K030912
Trade/Device Name: ThyroTest Regulation Number: 21 CFR 862.1690 Regulation Name: Thyroid stimulating hormone test system Regulatory Class: Class II Product Code: JLW Dated: June 26, 2003 Received: June 30, 2003
Dear Ms. White:
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).
Image /page/4/Picture/12 description: The image shows the logo for the U.S. Department of Health and Human Services (HHS). The logo features a stylized caduceus, which is a symbol often associated with medicine and healthcare. The caduceus is depicted with three lines forming a stylized bird-like shape. The words "HEALTH & HUMAN SERVICES" are arranged in a circular pattern around the caduceus.
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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 (301) 594-3084. 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/dsma/dsmamain.html.
Sincerely yours,
Steven Sutman
Steven I. Gutman, M.D., M.B.A. Director Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health
Enclosure
6
510(k) Number: K030912 Device Name: ThyroTest
Indication for Use:
The ThyroTest is a whole blood, qualitative assay for the detection of an increased level of TSH (Thyroid Stimulating Hormone). An increase level of TSH can be an indication of primary hypothyroidism. For Professional use only.
Sean Cooper
Division Sign-Off
Office of In Vitro Diagnostic Device Evaluation and Safety
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