K993852 · Worldwide Medical Corp. · LAF · Nov 29, 2000 · Clinical Toxicology
Device Facts
Record ID
K993852
Device Name
FIRST CHECK HOME DRUG TEST PANEL 4
Applicant
Worldwide Medical Corp.
Product Code
LAF · Clinical Toxicology
Decision Date
Nov 29, 2000
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 862.3610
Device Class
Class 2
Indications for Use
The First Check® Home Drug Test Panel 4 is an educational screening test for the rapid detection of marijuana, cocaine, morphine/opiates, methamphetamine and for their metabolites in human urine at cut-off levels of 50ng/mL, 300ng/mL, 300ng/mL and 1,000ng/mL respectively. The test is intended for consumer use as the first step in a two step process to provide consumers, including but not limited to concerned parents, with information concerning the presence or absence of the four drugs concerned. This information is beneficial to consumer efforts to comply with applicable laws and/or societal expectations. Information regarding second step confirmatory testing is provided.
Device Story
First Check® Home Drug Test Panel 4 is a rapid, one-step chromatographic immunoassay for qualitative detection of drugs of abuse in urine. Device utilizes antibody/target drug/antibody complex formation to identify presence of marijuana, cocaine, morphine/opiates, and methamphetamine. User applies urine sample to test card well; results interpreted visually by user. Intended for home use by lay persons (e.g., parents) as preliminary screening tool. Positive results require secondary confirmatory testing. Provides consumers with information regarding drug presence to assist in compliance with laws or societal expectations.
Clinical Evidence
No clinical data provided. Device relies on substantial equivalence to legally marketed predicate devices using established chromatographic immunoassay technology.
Technological Characteristics
One-step rapid chromatographic immunoassay. Principle: recognition and formation of specific antibody/target drug/antibody complexes. Cut-off concentrations: THC 50ng/mL, COC 300ng/mL, OPI 300ng/mL, MET 1,000ng/mL. Form factor: test card with sample well. Standalone device; no connectivity.
Indications for Use
Indicated for consumers, including parents, for rapid, preliminary qualitative screening of human urine for marijuana, cocaine, morphine/opiates, and methamphetamine and their metabolites. Intended as the first step in a two-step testing process; requires confirmatory testing for positive results.
Regulatory Classification
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.
Special Controls
*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).
Predicate Devices
Applied Biotech SureStep™ Drug Screen Multi Test (K972425)
Phamatech QuickScreen™ At Home Drug Test
Submission Summary (Full Text)
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NOV 2 9 2000
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Section D 510(k) Summary 21 C.F.R. § 807.92
- Submitter: I.
- Name: Worldwide Medical Corporation A.
- Address: 199 Technology Drive, Suite 150, Irvine, California B. 92618
- C. Phone and Fax Numbers: Phone: 949/727-0711 949/727-0602 Fax:
- Contact Person: H. Thad Morris D.
- Date of Preparation of this Summary: November 8, 1999 II.
- Trade Name: First Check® Home Drug Test Panel 4 III.
- Common Name: At home drugs of abuse rapid screening test for IV. marijuana, cocaine, morphine/opiates and methamphetamine in urine.
- Classification Name: Immunoassay for the qualitative detection of drugs V. of abuse in urine.
- VI. The Marketed Products to Which Equivalence is Claimed: The First Check® Home Drug Test Panel 4 that is the subject of this submission is identical to the Applied Biotech SureStep™ Drug Screen Multi Test in terms of intended use, product design, performance characteristics, materials of construction, and manufacturing process. It is also substantially equivalent to the Phamatech QuickScreen™ At Home Drug Test and other commercially available drug screening tests which qualitatively measure the presence of target drugs or metabolites by visual color one step immunoassay technology.
- VII. Statement of Intended Use Compared to Other Products: The intended use of the First Check® Home Drug Test Panel 4 is substantially equivalent to the listed products; it is a preliminary, rapid screening test for the detection of marijuana, cocaine, morphine/opiates and methamphetamine and/or their metabolites in urine. This product is intended to be the first step in a two step process to provide consumers, including concerned parents, with information regarding the presence or absence of these four drugs and/or their metabolites in a urine sample. Information regarding the second step, confirmatory testing, is provided.
199 Technology Drive Suite 150 Irvine, CA 92618 949-727-0711 800-788-5716 949-727-0602 .wwwmed.com
Stock symhol: WMED
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- Discussion of Technological Characteristics: The First Check® Home VIII. Drug Test Panel 4, like many commercially available drug screening tests, qualitatively measures the presence or absence of marijuana, cocaine, morphine/opiates, methamphetamine and/or their metabolites in urine, using a one step, rapid chromatographic immunoassay which operates under the principle of recognition and formation of specific antibody/target drug/antibody complexes. The cut-off concentration for THC is 50ng/mL. The cut-off concentration for COC is 300ng/mL. The cut-off concentration for OPI is 300ng/mL. The cut-off concentration for MET is 1,000ng/mL.
- IX. Safety and Effectiveness: Because the First Check® Home Drug Test Panel 4 is identical to the Applied Biotech SureStep™ Drug Screen Multi Test that is legally marketed under K972425, and because no special skills, training, education, or licensure are required to transfer a dropper level of urine sample into the test card well, there is no issue regarding the safety or effectiveness of the product to perform its intended function, i.e., to screen urine for the presence or absence of the listed drugs and their metabolites. Because the labeling of the First Check® Home Drug Test Panel 4 is substantially equivalent to a variety of rapid screening tests currently in commercial distribution, including the Phamatech QuickScreen™ At Home Drug Test, and there have been no reports of consumer inability to follow instructions or interpret results during the twenty-four months in which the product line has been purchased by the general public and used in quantities exceeding 200,000 tests, it is concluded that the product can be used effectively by the lay user.
199 Technology Drive Suite 150 Irvine, CA 92618 949-727-0711 800-788-5716 949-727-0602 .rw.wwmed.com Stock symbol: WMED
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## DEPARTMENT OF HEALTH & HUMAN SERVICES
## Public Health Service
NOV 2 9 2000
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
Worldwide Medical Corporation c/o Mr. Larry R. Pilot McKenna & Cueno, L.L.P. 1900 K Street, N.W. Washington, D.C. 20006-1108
K993852 Re:
Trade Name: First Check® Home Drug Test Panel 4 Regulatory Class: II Product Code: LAF, DIO, DJG, LDJ Dated: October 30, 2000 Received: October 30, 2000
Dear Mr. Pilot:
We have reviewed your Section 510(k) notification of intent to market the device referenced we have toviewed your betermined the equivalent (for the indications for use above and we nave determinent in marketed predicate devices marketed in interstate commerce surved in the energians, to renactment 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 Cosments of the Act. The general controls provisions of the Act include requirements for annual provisions of the Fee. "The generod 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 (1 remance ripproval), in the Code of Federal Regulations, Title 21, Parts 800 to 895. A 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 may with the GMP regulation may result in regulatory action. In addition, FDA may publish compry with the CHI reoncerning 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.
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Page 2
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 legally partited 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" (21CFR 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/cdrl/dsma/dsmamain.html".
Sincerely yours.
Steven Butman
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
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SECTION A
Page 1 of 1
# 510(k) Number (if known): _ 1 993852
Device Name: First Check® Home Drug Test Panel 4
Indications for Use:
- The First Check® Home Drug Fest Panel 4 is an educational sereening test for the rapid detection of marijuana, cocaine, morphine/opiates, methamphetamine and for their metabolites in human urine at cut-off levels of 50ng/mL, 300ng/mL, 300ng/mL and 1,000ng/mL respectively. The test is intended for consumer use as the first step in a two step process to provide consumers, including but not limited to concerned parents, with information concerning the presence or absence of the four drugs concorned parchib, was not information is beneficial to consumer offorts to comply with applicable laws and/or societal expectations. Information regarding second step confirmatory testing is provided.
# (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Division Sign-Off
\$_\$ over the-counter DS
(Optional Format 3-10-98)
199 Technology Drive Suite 150 Irvine, CA 92618 949-727-0711 800-788-5716 949-727-0602 .wwwmed.com Stock symbol: WMED
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1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
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Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
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Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
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Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
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Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
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Reading rule for every project: how many summaries do you read in full?
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Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
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Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
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Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
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Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
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The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.