K973326 · Drial Consultants, Inc. · JXM · Feb 24, 1998 · Clinical Toxicology
Device Facts
Record ID
K973326
Device Name
QUIKPAC II ONE STEP BENZODIAZEPINE TEST
Applicant
Drial Consultants, Inc.
Product Code
JXM · Clinical Toxicology
Decision Date
Feb 24, 1998
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 862.3170
Device Class
Class 2
Indications for Use
Syntron's QuikPac II One Step Benzodiazepine assay is a rapid, qualitative, competitive binding immunoassay for the determination of Benzodiazepine in urine at the cutoff level of 200 ng/ml. The test provides only preliminary data which should be confirmed by other methods such as gas chromatography/mass spectrophotometry (GC/MS). Clinical considerations and professional judgment should be applied to any drug of abuse test result, particularly when preliminary positive results are indicated6. Syntron's QuikPac II One Step Benzodiazepine Test is not intended to monitor drug levels, but only to screen urines for the presence of Benzodiazepine and its metabolites.
Device Story
Chromatographic absorbent device for qualitative urine drug screening. Principle: competitive binding immunoassay; drug/metabolites in sample compete with immobilized drug conjugate on porous membrane for limited antibody sites. Labeled antibody-dye conjugate binds to free drug in specimen; complex competes with immobilized antigen in positive reaction zone. Absence of magenta color band at 200 ng/ml cutoff indicates positive result; presence of magenta band in control zone confirms reagent/device function. Used in clinical/forensic settings; operated by laboratory personnel. Results are preliminary; require confirmation by GC/MS. Assists healthcare providers in identifying potential benzodiazepine presence; supports clinical decision-making regarding drug use.
Clinical Evidence
Clinical trial of 303 urine samples compared to Syva EMIT® II at 200 ng/ml cutoff. Results: 100% agreement in positive samples, 95.42% agreement in negative samples, 97.69% overall accuracy. In-house testing (n=not specified) showed 100% positive agreement, 97.40% negative agreement, 98.54% accuracy. All positive results confirmed by GC/MS. False positives identified by screening methods were confirmed by GC/MS to be below the 200 ng/ml cutoff.
Technological Characteristics
Chromatographic absorbent device; porous membrane support; antibody-dye conjugate; immobilized drug conjugate. Qualitative lateral flow immunoassay. No external energy source required. Standalone test format.
Indications for Use
Indicated for the qualitative screening of urine for the presence of Benzodiazepine and its metabolites at a cutoff level of 200 ng/ml. Intended for medical/forensic screening use.
Regulatory Classification
Identification
A benzodiazepine test system is a device intended to measure any of the benzodiazepine compounds, sedative and hypnotic drugs, in blood, plasma, and urine. The benzodiazepine compounds include chlordiazepoxide, diazepam, oxazepam, chlorzepate, flurazepam, and nitrazepam. Measurements obtained by this device are used in the diagnosis and treatment of benzodiazepine use or overdose and in monitoring levels of benzodiazepines to ensure appropriate therapy.
Special Controls
*Classification.* Class II (special controls). A benzodiazepine 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).
Reference Devices
Syva EMIT® II
Submission Summary (Full Text)
{0}------------------------------------------------
K923326
#### 510k Submission for QuikPac II One Step Benzodiazepine Test FEB 2 4 1998 Syntron Bioresearch, Inc. Page 78 of 78 Pages
Revision B 10/17/97 Printed on 11/13/97
# Summary of Safety and Effectiveness
The sponsor, Syntron Bioresearch, Inc. (2774 Loker Ave. West, Carlsbad, California, 92008), has developed, manufactured, and tested under GMP/GLP guidelines a device for the qualitative testing of urine for the presence of Benzodiazepine and its metabolites in a screening format.
The trade name of the device is QuikPac II One Step Benzodiazepine Test having a designated common name of Benzodiazepine Test System and a classification as a Class II device per 21 CFR 9 862.3170. This device is intended for the medical/forensic screening of urine.
Syntron's QuikPac II One Step Benzodiazepine Test consists of a chromatographic absorbent device in which the drug or drug metabolites in the sample compete with a drug conjugate immobilized on a porous membrane support for the limited antibody sites. As the test sample flows through the absorbent device, the labeled antibody-dye conjugate binds to the free drug in the specimen forming an antibody:antigen complex. This complex competes with immobilized antigen conjugate in the positive reaction zone and will not produce a magenta color band when the drug is above the detection level of 200 ng/ml. Unbound dye conjugate binds to the reagent in the control zone, producing a magenta color band, demonstrating that the reagents and device are functioning correctly.
In-house testing of Syntron's QuikPac II One Step Benzodiazepine Test yielded an agreement within positive samples of 1.000 and an agreement within negative samples of 0.9740 and an accuracy of 98.54% when tested against Syva EMIT® II on samples documented to be positive by GC/MS(200). A clinical trial consisting of 303 samples was run and the combined data vielded an agreement within positive samples of 100%, an agreement within negative of 95.42% with an accuracy of 97.69% when compared to Emit II® run at 200 ng/ml. By non parametric testing the results are significantly different from one another. Emit II vielded 7 false positives. GC/MSc200) results indicated the presence of drugs, but at a level below the cutoff of 200 ng/ml.
All positive samples by either screening method were confirmed by GC/MScoo. The testing performed by both the sponsor and the Clinical Trial site did find 2 and 7 respectively false positives and no false negatives in the samples tested. GC/MSwop confirmed the presence of benzodiazepines but at levels below the cutoff of 200 ng/ml.
Additional information on this submission may be obtained by contacting Dr. Cleve W. Laird, President, Drial Consultants, Inc. at 805-522-6223(Ca) or by fax at 805-522-1526.
{1}------------------------------------------------
Image /page/1/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized eagle-like symbol with three curved lines representing the body and wings. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular pattern around the symbol.
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
FEB 24 1998
Cleve W. Laird, Ph.D. President and CEO Drial Consultants, Inc. 1420 Los Angeles Avenue, Suite 201 Simi Valley, California 93065
Re : K973326 QuikPac One Step Benzodiazepine Test Regulatory Class: II Product Code: JXM January 15, 1998 Dated: January 16, 1998 Received:
Dear Dr. Laird:
We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). You may, therefore, market the device, subject to the general controls provisions The general controls provisions of the Act of the Act. include requirements for annual reqistration, listing of devices, qood 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 affecting your device can be found in the Code of Federal Requlations, Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the Current-Good Manufacturing Practice requirements, as setforth 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 comply with the GMP regulation may result in regulatory In addition, FDA may publish further announcements action. concerning 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 requlations.
{2}------------------------------------------------
Page 2
Under the Clinical Laboratory Improvement Amendments of 1988 (CLIA-88), this device may require a CLIA complexity categorization. To determine if it does, you should contact the Centers for Disease Control and Prevention (CDC) at (770) 488-7655.
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 marketed 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" (21 CFR 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/cdrh/dsmamain.html".
Sincerely yours,
Steven Litman
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
{3}------------------------------------------------
## 510(k) Number (if Known): No Yet Assigned
## Device Name: QuikPac II One Step Opiate Assay
### Indications For Use:
Syntron's QuikPac II One Step Benzodiazepine assay is a rapid, qualitative, competitive binding immunoassay for the determination of Benzodiazepine in urine at the cutoff level of 200 ng/ml. The test provides only preliminary data which should be confirmed by other methods such as gas chromatography/mass spectrophotometry (GC/MS). Clinical considerations and professional judgment should be applied to any drug of abuse test result, particularly when preliminary positive results are indicated6. Syntron's QuikPac II One Step Benzodiazepine Test is not intended to monitor drug levels, but only to screen urines for the presence of Benzodiazepine and its metabolites.
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANDOTHER PAGE IF NEEDED)
Concurance of CDRH, Office of Device Evaluation (ODE)
Division Sign Off
(Division Sign-Off) Division of Clinical, Laboratory Vice 510(k) Number
Perscription Use: (Per 21 CFR 801.109
or
Over The Counter Use: (Optional Format 1-2-96)
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
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.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
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.
Where do you find a device's intended use without opening the PDF?
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.
What does the AI Performance sub-table show, and why is it useful?
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.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
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.
What does the side-by-side PDF viewer mode do?
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.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
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.
10. Embeddings: the galaxy map
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.