ACON ONE STEP MULTI-DRUG MULTI-LINE SCREEN TEST CARD; ACON ONE STEP MULTI-DRUG MULTI-LINE SCREEN TEST DEVICE
Applicant
Acon Laboratories Co.
Product Code
DKZ · Clinical Toxicology
Decision Date
May 8, 2002
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 862.3100
Device Class
Class 2
Indications for Use
The ACON® One Step Multi-Line Screen Test Card and Test Device are rapid chromatographic immunoassays for the qualitative and simultaneous detection of two to six drugs in a variety of combinations in human urine samples. The designated cut-off concentrations for these drugs are as follows: Amphetamine at 1,000 ng/ml, Cocaine at 300 ng/ml, Methamphetamine at 1,000 ng/ml, Opiates at 2,000 ng/ml, Marijuana at 50 ng/ml and Phencyclidine at 25 ng/ml. They are intended for healthcare professionals including professionals at the point of care sites.
Device Story
Rapid chromatographic immunoassay for qualitative, simultaneous detection of 2-6 drugs in human urine; utilizes competitive binding, lateral flow immunochromatographic principle; mouse monoclonal antibodies detect drugs at specific cut-offs (AMP 1000ng/ml, COC 300ng/ml, mAMP 1000ng/ml, OPI 2000ng/ml, THC 50ng/ml, PCP 25ng/ml). Used at point-of-care sites by healthcare professionals; no instrumentation required. Positive result: absence of colored line in test region; negative result: presence of colored line. Procedural control line confirms proper sample volume and membrane wicking. Provides preliminary analytical results; intended to aid clinical decision-making regarding drug screening.
Clinical Evidence
Clinical evaluation of >1,000 urine specimens compared subject device results against predicate single-drug tests and GC/MS analysis. Results showed high agreement: positive agreement 90-99%, negative agreement 95-99%, and overall agreement 95-99% across all drug analytes. Study included samples with concentrations in the -25% to +25% cut-off range. Physician's office laboratory (POL) study confirmed suitability for point-of-care use.
Technological Characteristics
Lateral flow immunochromatographic assay; competitive binding principle; mouse monoclonal antibodies; visual qualitative readout; no instrumentation; standalone test card/device format.
Indications for Use
Indicated for healthcare professionals at point-of-care sites for the qualitative, simultaneous detection of 2-6 drugs (Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, Phencyclidine) in human urine at specified cut-off concentrations.
Regulatory Classification
Identification
An amphetamine test system is a device intended to measure amphetamine, a central nervous system stimulating drug, in plasma and urine. Measurements obtained by this device are used in the diagnosis and treatment of amphetamine use or overdose and in monitoring levels of amphetamine to ensure appropriate therapy.
Special Controls
*Classification.* Class II (special controls). An amphetamine 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
ACON AMP One Step Amphetamine Test Strip (K011673)
ACON mAMP One Step Methamphetamine Test Strip (K011672)
ACON PCP One Step Phencyclidine Test Strip (K011730)
Submission Summary (Full Text)
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#### 8. SUMMARY OF 510(k) SAFETY AND EFFECTIVENESS
This summary of safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92.
KO20313 The Assigned 510(k) number is
# Submitter:
ACON Laboratories, Inc. 4108 Sorrento Valley Boulevard San Diego, California 92121
Tel.: 858-535-2030 Fax: 858-535-2038
Date: January 28, 2002
Contact Person: Edward Tung, Ph.D.
Product Names:
ACON One Step Multi-Drug Multi-Line Screen Test Card
ACON One Step Multi-Drug Multi-Line Screen Test Device
# Common Name:
Immunochromatographic test for the simultaneously qualitative detection of Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine in urine.
# Device Classification:
The ACON One Step Multi-Drug Multi-Line Screen Test Card and Test Device are similar to other FDA-cleared devices for the qualitative and simultaneous detection of Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine in urine specimens. These tests are used to provide a preliminary analytical result only. Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine test systems have been classified as Class II devices with moderate complexity.
# Classification Name:
Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine test system
{1}------------------------------------------------
#### Intended Use:
The ACON® One Step Multi-Line Screen Test Card and Test Device are rapid chromatographic immunoassays for the qualitative and simultaneous detection of two to six drugs in a variety of combinations in human urine samples. The designated cut-off concentrations for these drugs are as follows: Amphetamine at 1,000 ng/ml, Cocaine at 300 ng/ml, Methamphetamine at 1,000 ng/ml, Opiates at 2,000 ng/ml, Marijuana at 50 ng/ml and Phencyclidine at 25 ng/ml. They are intended for healthcare professionals including professionals at the point of care sites.
#### Description:
The ACON One Step Multi-Drug Multi-Line Screen Test Card and Test Device are competitive binding, lateral flow immunochromatographic assays for the qualitative and simultaneous detection of Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine in urine samples. The test is based on the principle of antigen-antibody immunochemistry. It utilizes mouse monoclonal antibodies to selectively detect elevated levels of Amphetamine, Methamphetamine, Cocaine, Opiates, THC and PCP in urine at the cut-off concentrations of 1,000 ng/ml (AMP), 1,000 ng/ml (mAMP), 300 ng/mL (COC), 2,000 ng/ml (OPI), 50 ng/ml (THC) and 25 ng/ml (PCP). These tests can be performed without the use of an instrument.
A positive urine specimen will not generate a colored-line for the specific drug tested in the designated test region. A negative urine specimen or a urine specimen containing of Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine at the concentrations below the designated cut-off levels will generate a colored-line in the designated test region for the drug. To serve as a procedural control, a colored-line will always appear at the control region, indicating that proper volume of specimen has been added and membrane wicking has occurred.
#### Predicate Devices:
ACON™ of Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine Single Drug Test strips were used as the predicate devices for the ACON® One Step Multi-Drug Multi-Line Screen Test Card and Test Device to compare their performance with clinical urine specimens.
510(k) Number for these predicate devices are:
| ACON AMP One Step Amphetamine Test Strip | K011673 |
|-----------------------------------------------|---------|
| ACON mAMP One Step Methamphetamine Test Strip | K011672 |
| ACON COC One Step Cocaine Test Strip | K010841 |
| ACON OPI One Step Opiates Test Strip | K011353 |
| ACON THC One Step Marijuana Test Strip | K003557 |
| ACON PCP One Step Phencyclidine Test Strip | K011730 |
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# Comparison to a Predicate Device:
A comparison of the features of the ACON™ One Step Multi-Line Screen Test Card and Test Device versus the ACON™ Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine Single Tests is shown below:
- Both tests are assays intended for the qualitative detection of Amphetamine, Cocaine, . Methamphetamine, Opiates, Marijuana, and Phencyclidine in urine samples.
- Both tests are intended as a screening method that provides a preliminary analytical test result. .
- Both tests are immunochromatographic, lateral flow assays for the rapid detection of . Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine with a visual, qualitative end result, while ACON Multi-Drug Multi-Line Test detects 2 to 6 of the above drugs simultaneously.
- Both tests utilize the same basic immunoassay principles that rely on antigen/ antibody ● interactions to indicate a positive or negative result.
- Both tests have the same cut-off for each drug test. .
# Safety and Effectiveness Data:
# Accuracy
A clinical evaluation was conducted using clinical urine specimens. This evaluation compared the test results between ACON One Step Multi-Drug Multi-Line Screen Test Card and Test Device versus previously FDA-cleared Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine Single tests; as well as against data obtained from the customary GC/MS analysis. Over 1,000 clinical specimens were employed including approximately 10% of the samples with drug concentrations in the -25% to +25% cut-off range. The comparisons of data obtained from this study yielded the following results:
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# ACON One Step Multi-Drug Multi-Line Screen Test Card
vs.
| ACON Test Card | Positive Agreement | Negative Agreement | Overall Agreement |
|----------------|------------------------------|------------------------------|------------------------------|
| AMP | 129/129=>99%<br>(97% - 99%)* | 172/172=>99%<br>(98% - 99%)* | 301/301=>99%<br>(98% - 99%)* |
| COC | 112/112=>99%<br>(97% - 99%)* | 186/187=99%<br>(97% - 99%)* | 298/299=99%<br>(98% - 99%)* |
| mAMP | 121/122=99%<br>(96% - 99%)* | 174/174=>99%<br>(98% - 99%)* | 295 / 296=99%<br>(98%-99%) |
| OPI | 131/133=98%<br>(95% - 99%)* | 164/164=>99%<br>(98% - 99%) | 295/297 =>99%<br>(97%-99%) |
| THC | 124/124=>99%<br>(97% - 99%)* | 175/176=99%<br>(97% - 99%)* | 299/300=99%<br>(98%-99%)* |
| PCP | 71/72=99%<br>(93% - 99%)* | 160/160=>99%<br>(98%-99%)* | 231/232=99%<br>(97% - 99%)* |
Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine Single Tests:
* 95% Confidence Interval
#### ACON One Step Multi-Drug Multi-Line Screen Test Device vs.
Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine Single Test:
| ACON Test Device | Positive Agreement | Negative Agreement | Overall Agreement |
|------------------|-------------------------------|----------------------------|-------------------------------|
| AMP | 129/129=>99%<br>(97%-99%)* | 172/172=>99%<br>(98%-99%) | 301/301=>99%<br>(98%-99%)* |
| COC | 112/112=>99%<br>(97%-99%)* | 186/187=>99%<br>(97%-99%)* | 298/299=>99%<br>(98%-99%)* |
| mAMP | 121/121=>99%<br>(97% - 99%)* | 175/175=>99%<br>(98%-99%)* | 296 / 296 =>99%<br>(98%-99%)* |
| OPI | 132/133=>99%<br>(96% - 99%)* | 164/164=>99%<br>(98%-99%) | 296/297=>99%<br>(98%-99%)* |
| THC | 124/124 =>99%<br>(97% - 99%)* | 175/176=>99%<br>(98%-99%)* | 299 / 300=>99%<br>(98%-99%)* |
| PCP | 71/72 = 99%<br>(95% - 99%)* | 160/160=>99%<br>(98%-99%)* | 231/232 = 99%<br>(97% - 99%)* |
* 95% Confidence Interval
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Clinical study results of ACON One Step Multi-Line Screen Test Card and Test Device are compared to GC/MS analysis data:
The GC/MS cut-off levels for each of the six drugs tested are as following:
| Amphetamine | 1,000 ng/ml |
|-----------------|-------------|
| Cocaine | 300 ng/ml |
| Methamphetamine | 1,000 ng/ml |
| Opiate | 2,000 ng/ml |
| Marijuana | 50 ng/ml |
| Phencyclidine | 25 ng/ml |
Samples with drug concentration above the cut-off level were considered presumptive positive and concentrations below the cut-off are considered negative.
#### ACON One Step Multi-Drug Multi-Line Screen Test Card vs. GC/MS Analysis
| ACON Test Card | Positive Agreement | Negative Agreement | Overall Agreement |
|----------------|-------------------------------|---------------------------------|---------------------------------|
| AMP | 129/136=95%<br>(90% - 98%)* | 164/165=99%<br>(97% - 99%)* | 293/301 = 97%<br>(95% - 99%)* |
| COC | 112/118 = 95%<br>(89% - 98%)* | 180/181 = 99%<br>(97% - 99%)* | 292/299 = 98%<br>(95% - 99%)* |
| mAMP | 121/134 = 90%<br>(84% - 94%)* | 162/162 = >99%<br>(98% - 100%)* | 283 / 296 = 96%<br>(93% - 98%)* |
| OPI | 130/131 = 99%<br>(96% - 99%)* | 164/166 = 99%<br>(96% - 99%)* | 294/297 = 99%<br>(97% - 99%)* |
| THC | 116/122 = 95%<br>(90% - 98%)* | 169/178 = 95%<br>(91% - 98%)* | 285 / 300 = 95%<br>(92% - 97%) |
| PCP | 70/78 = 90%<br>(81% - 95%)* | 153/154 = 99%<br>(96% - 99%)* | 223/232 = 96%<br>(93% - 98%)* |
* 95% Confidence Interval
{5}------------------------------------------------
| ACON Test Device | Positive Agreement | Negative Agreement | Overall Agreement |
|------------------|-------------------------------|-------------------------------|---------------------------------|
| AMP | 128/136=94%<br>(89% - 97%) | 164/165=99%<br>(97% - 99%) | 292/301 = 97%<br>(94% - 99%)* |
| COC | 112/118 = 95%<br>(89% - 98%)* | 180/181 = 99%<br>(97% - 99%)* | 292/299 = 98%<br>(95% - 99%)* |
| mAMP | 120/134 = 90%<br>(83% - 94%)* | 162/162 =>99%<br>(98% - 100%) | 282 / 296 = 95%<br>(92% - 97%)* |
| OPI | 130/131 = 99%<br>(96% - 100%) | 164/166 = 99%<br>(96% - 99%)* | 294/297 = 99%<br>(97% - 99%)* |
| THC | 116/122 = 95%<br>(90% - 98%)* | 170/178 = 96%<br>(91% - 98%)* | 286 / 300 = 95%<br>(92% - 97%)* |
| PCP | 70/78 = 90%<br>(81% - 95%)* | 152/154 = 99%<br>(96% - 99%)* | 222/232 = 96%<br>(92% - 98%)* |
#### ACON One Step Multi-Drug Multi-Line Screen Test Device vs. GC/MS Analysis
* 95% Confidence Interval
# Conclusion:
Clinical study results demonstrate the substantial equivalency between the ACON One Step Multi-Drug Multi-Line Screen Test Card and Test Device and the Amphetamine, Methamphetamine, Cocaine, Opiates, THC and PCP single tests, which has already being cleared by FDA and marketed in the United States. It is also demonstrated that these tests are safe and effective in detecting Amphetamine, Cocaine, Methamphetamine, Opiates, Marijuana, and Phencyclidine at the following cut-off concentrations: Amphetamine 1,000 ng/ml, Cocaine 300 ng/ml, Methamphetamine 1,000 ng/ml, Opiates 2,000 ng/ml, THC 50 ng/ml and PCP 25 ng/ml. The physician's office laboratory POL study demonstrated that these tests are also suitable for use by professional at point-of-care site.
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# DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/6/Picture/1 description: The image shows the seal of the Department of Health & Human Services (HHS) of the United States of America. The seal features a stylized caduceus, a symbol often associated with medicine and healthcare, with three parallel lines forming the staff and a snake winding around it. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular pattern around the caduceus.
Re:
MAY 0 8 2002
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
Edward Tung, Ph.D. Director of Regulatory Affairs ACON Laboratories, Inc. 4108 Sorrento Valley Blvd. San Diego, CA 92121
> k020313 Trade/Device Names: ACON® One Step Multi-Line Screen Test Card ACON® One Step Multi-Drug Multi-Line Screen Test Device Regulation Number: 21 CFR 862.3100; 21 CFR 862.3250; 21 CFR 862.3870; 21 CFR 862.3650; 21 CFR 862.3610 Regulation Name: Amphetamine test system; Cocaine and cocaine metabolite test System; Cannabinoid test system; Opiate test system; Methamphetamine test system Regulatory Class: Class II; Class II; Class II; Class II, Class II Product Code: DKZ; DIO; LDJ; DJG; LCM; LAF Dated: April 8, 2002 Received: April 12, 2002
Dear Dr. Tung:
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 the Code of Federal Regulations, Title 21, Parts 800 to 898. 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 Part 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
{7}------------------------------------------------
Page 2 - .
This letter will allow you to begin marketing your device as described in your 510(k) premarket I nis lotton . 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 1 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, (Joase 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 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 I. Gutman, M.D., M.B.A. Director Division of Clinical Laboratory-Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{8}------------------------------------------------
#### INDICATIONS FOR USE 10.
510(k) Number:
K020313
ACON® One Step Multi-Drug Multi-Line Screen Test Card Device Name:
ACON® One Step Multi-Drug Multi-Line Screen Test Device
Indications for Use:
The ACON® One Step Multi-Drug Multi-Line Screen Test Card and Test Device are rapid chromatographic immunoassays for the qualitative and simultaneous detection of two to six drugs in a variety of combinations in human urine. The designated cut-off concentrations for these drugs are as follows: Amphetamine at 1,000 ng/ml, Cocaine at 300 ng/ml, Methamphetamine at 1,000 ng/ml, Opiates at 2,000 ng/ml, Marijuana at 50 ng/ml and Phencyclidine at 25 ng/ml. They are intended for healthcare professionals including professionals at the point of care sites.
Lean Cooper
(Division Sign-Off)
Division of Clinical L
510(k) Number. K020313
(Please do not write below this point) Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use (Per 21 CFR 801.109)
Or
Over-The-Counter Use
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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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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.
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.
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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.
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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.
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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.