(157 days)
The Amedica Drug Screen MDMA-BAR-BZO-MTD-TCA Test is an in vitro diagnostic test for the rapid detection of 3,4 methylenedioxymethamphetamine, secobarbital, oxazepam, methadone and nortriptyline in human urine at the following cut-off concentration.
| MDMA | 3,4 methylenedioxymethamphetamine | 500 ng/ml |
|---|---|---|
| BAR | secobarbital | 300 ng/ml |
| BZO | oxazepam | 300 ng/ml |
| MTD | methadone | 300 ng/ml |
| TCA | nortriptyline | 1000 ng/ml |
This test kit is used to obtain a visual, qualitative result and is intended for professional use. It is not intended for over the counter sale.
Membrane based one-step, lateral flow, competitive immunoassay use colloidal gold for visual detection of 3,4 methylenedioxymethamphetamine, secobarbital, oxazepam, methadone and nortriptyline.
Here's an analysis of the provided text regarding the Amedica Drug Screen MDMA-BAR-BZO-MTD-TCA Test, focusing on acceptance criteria and the supporting study:
Acceptance Criteria and Device Performance
| Analyte | Cutoff Concentration (ng/ml) | Device Performance (Agreement with GC/MS) |
|---|---|---|
| MDMA (3,4 methylenedioxymethamphetamine) | 500 | > 94% |
| BAR (Secobarbital) | 300 | > 94% |
| BZO (Oxazepam) | 300 | > 94% |
| MTD (Methadone) | 300 | > 94% |
| TCA (Nortriptyline) | 1000 | > 94% |
Note: The document only provides a single summary performance metric ("> 94% agreement") for the entire panel of drugs when compared to GC/MS. It does not break down the performance for each individual drug.
Study Details
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Sample size used for the test set and the data provenance:
- Sample Size: The document does not specify the exact sample size for the "blind-labeled specimens" used in the correlation study.
- Data Provenance: The data provenance is not explicitly stated (e.g., country of origin). The specimens were "blind-labeled," implying they were collected prior to the study. This suggests a retrospective data collection approach for this part of the study. Separately, a "clinical site study" was performed at a "certified laboratory," suggesting a prospective clinical evaluation, but details are not provided.
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Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
- The ground truth was established by GC/MS (Gas Chromatography/Mass Spectrometry), which is an analytical laboratory method, not human experts. Therefore, the concept of "number of experts" or their "qualifications" doesn't directly apply in the way it would for image interpretation or subjective medical assessments.
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Adjudication method (e.g., 2+1, 3+1, none) for the test set:
- Not applicable. As the ground truth was established by GC/MS, there was no human adjudication process involved for resolving discrepancies between multiple expert readings.
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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:
- No, a multi-reader multi-case (MRMC) comparative effectiveness study was not explicitly described.
- The device is a qualitative immunoassay for drug detection, where the reading is visual and interpreted by a single professional. It's not an AI-assisted diagnostic tool that would typically involve human readers interpreting complex data.
- Therefore, the concept of an "effect size of how much human readers improve with AI vs without AI assistance" does not apply here.
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If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
- Yes, a standalone performance assessment was effectively done. The "correlation study using blind-labeled specimens that have been measured by GC/MS" and stating "> 94% agreement with GC/MS results" represents the standalone performance of the device's ability to detect the target substances. The "clinical site study" further validated its use by professionals, implying that the device's output (visual lines) is directly interpreted.
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The type of ground truth used (expert consensus, pathology, outcomes data, etc.):
- The primary ground truth used was GC/MS (Gas Chromatography/Mass Spectrometry), which is a gold standard analytical method for confirming drug presence and concentration in urine samples.
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The sample size for the training set:
- The document does not explicitly mention a "training set" or its size, as this device is a competitive immunoassay, not a machine learning algorithm that typically requires a distinct training phase. Its design and performance are based on chemical and immunological principles.
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How the ground truth for the training set was established:
- Not applicable, as no explicit training set for a machine learning algorithm was described. The performance of the immunoassay is inherent to its biochemical design.
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OCT 17 2003
Summary of Safety and Effectiveness ( As required by 21CFR 807.92(c))
Device name: Amedica Drug Screen MDMA-BAR-BZO-MTD-TCA Test
Design and Materials: Membrane based one-step, lateral flow, competitive immunoassay use colloidal gold for visual detection of 3,4 methylenedioxymethamphetamine, secobarbital, oxazepam, methadone and nortriptyline.
Intended Use: The Amedica Drug Screen MDMA-BAR-BZO-MTD-TCA Test is a immunochromatographic assay for the rapid detection of of 3,4 methylenedioxymethamphetamine, secobarbital, oxazepam, methadone and nortriptyline in human urine at the following cutoff concentration:
| MDMA | 3,4 methylenedioxymethamphetamine | 500 ng/ml |
|---|---|---|
| BAR | Secobarbital | 300 ng/ml |
| BZO | Oxazepam | 300 ng/ml |
| MTD | Methadone | 300 ng/ml |
| TCA | Nortriptyline | 1000 ng/ml |
This test kit is used to obtain a visual, qualitative result and is intended for professional use.
Test Principle and Description: The Amedica Drug Screen MDMA-BAR-BZO-MTD-TCA Test is based on the principle of highly specific competitive immunochemical reactions between antigens and antibodies for the analysis of specific substances in urine. During testing, a urine specimen moves along membrane on the strip by capillary action. When drugs concentrations in the urine are below cutoff, they are not enough to saturate all of the binding sites of the antibodycoated colored particles in the test strip. The unsaturated antibody-coated particles will then be captured by drug-protein conjugates immobilized on the strip and colored lines will appear in the test region. The test result is negative. If the drugs levels are above cutoff, they are sufficient to occupy all of the binding sites on the antibody-coated particles. The saturated antibody-coated particles will not be captured by drug-protein conjugate coated on the strip. The colored lines will not form in the test region. The test result is positive. The device also provides a built-in control with a different antibody reaction at the control region. This control line should always appear whether or not the drugs or metabolites are present. If the control line does not appear the test result is invalid. This means that negative urine will produce colored bands in test and control region, while positive urine will produce only colored bands in the control region.
Performance: The product performance was evaluated by correlation study using blind-labeled specimens that have been measured by GC/MS. This study produced > 94% agreement with GC/MS results. In addition, clinical site study was performed at a certified laboratorie and demonstrated that Amedica Biotech Drug Screen MDMA-BAR-BZO-MTD-TCA Test can be use by professionals to obtain a visual, qualitative detection of drugs of abuse. The results of these studies and comparison with predict devices demonstrated that Amedica Biotech Drug
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K 031497 page 2 of 2
Benzodiazepine, Methadone, TCA Test
Screen MDMA-BAR-BZO-MTD-TCA Test is substantially equivalent to the legally marketed devices.
Amedica Biotech, Inc. Manufacturer: 28301 Industrial Blvd. Suite K Hayward, CA 94545 Phone: (510) 785-5980 Fax: (510) 785-5973 Instant-View Drug Screen MDMA, Barbiturate, Predicate kits:
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Image /page/2/Picture/1 description: The image is a black and white logo for the Department of Health & Human Services USA. The logo consists of a circular arrangement of text that reads "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA". Inside the circle is a stylized symbol that resembles three human profiles facing to the right, with flowing lines connecting them. The symbol is meant to represent health and human services.
OCT 17 2003
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
Mr. Jeff Chen President Amedica Biotech, Inc. 28301 Industrial Blvd - Suite K Hayward, CA 94545
K031497 Re:
Trade/Device Name: Amedica Drug Screen MDMA-BAR-BZO-MTD-TCA Test Regulation Number: 21 CFR 862.3610 Regulation Name: Methamphetamine test system Regulatory Class: Class II Product Code: DJC; DIS; JXM; DJR; MLK Dated: July 29, 2003 Received: July 31, 2003
Dear Mr. Chen:
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).
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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 (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
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Page of
510(k) Number (if known):
Device Name: Amedica Drug Screen MDMA-BAR-BZO-MTD-TCA Test
Indications For Use:
The Amedica Drug Screen MDMA-BAR-BZO-MTD-TCA Test is an in vitro diagnostic test for the rapid detection of 3,4 methylenedioxymethamphetamine, secobarbital, oxazepam, methadone and nortriptyline in human urine at the following cut-off concentration.
| MDMA | 3,4 methylenedioxymethamphetamine | 500 ng/ml |
|---|---|---|
| BAR | secobarbital | 300 ng/ml |
| BZO | oxazepam | 300 ng/ml |
| MTD | methadone | 300 ng/ml |
| TCA | nortriptyline | 1000 ng/ml |
This test kit is used to obtain a visual, qualitative result and is intended for professional use. It is not intended for over the counter sale.
intended for over-the counter sale
Division Sign-Off
Office of In Vitro Diagnostic Device Evaluation and Safety
510(k) K031497
(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
(Optional Format 1-2-96)
§ 862.3610 Methamphetamine test system.
(a)
Identification. A methamphetamine test system is a device intended to measure methamphetamine, a central nervous system stimulating drug, in serum, plasma, and urine. Measurements obtained by this device are used in the diagnosis and treatment of methamphetamine use or overdose.(b)
Classification. Class II (special controls). A methamphetamine test system is not exempt if it is intended for any use other than employment or insurance testing or is intended for Federal drug testing programs. 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, provided the test system is intended for employment and insurance testing and includes a statement in the labeling that the device is intended solely for use in employment and insurance testing, and does not include devices intended for Federal drug testing programs (e.g., programs run by the Substance Abuse and Mental Health Services Administration (SAMHSA), the Department of Transportation (DOT), and the U.S. military).