510(k) · Cleared
ClearedCLUNGENE Amphetamine Tests, CLUNGENE Cocaine Tests, CLUNGENE Oxazepam Tests
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Hangzhou Clongene Biotech Co., Ltd. · DKZ Enzyme Immunoassay, Amphetamine
Cleared on Aug 30, 2016 as substantially equivalent to K052115 (First Check Diagnostics, LLC, 2005) after a 119-day review. Its family tree reaches back 2 generations to 2005.
- Decided
- Aug 30, 2016
- Review
- 119 days
- Class
- Class II
- Product code
- DKZ
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 2 generations to K050186 (2005). No later device cites it as a predicate yet.
- Root · 2 generations backK050186 Ameditech Immutest Multi-Drug Screen Panel IiiAmeditech, Inc. · 2005 · Recalled
- 1 generation backK052115 First Check Multi Drug Cup 12 for Marijuana (THC), Cocaine (Coc)…First Check Diagnostics, LLC · 2005 · Recalled
- This deviceK161251 CLUNGENE Amphetamine Tests, CLUNGENE Cocaine Tests, CLUNGENE…Hangzhou Clongene Biotech Co., Ltd. · 2016
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −2 | K050186 | Ameditech Immutest Multi-Drug Screen Panel Iii | Ameditech, Inc. | 2005 | 3 |
| −1 | K052115 | First Check Multi Drug Cup 12 for Marijuana (THC), Cocaine (Coc), Amphetamine… | First Check Diagnostics, LLC | 2005 | 86 |
| 0 (this device) | K161251 | CLUNGENE Amphetamine Tests, CLUNGENE Cocaine Tests, CLUNGENE Oxazepam Tests | Hangzhou Clongene Biotech Co., Ltd. | 2016 | — |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in DKZ? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new DKZ device
- #1 K233019 AllTest Multi-Drug Rapid Test Cup; AllTest…score 14.6 · 8 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K052115 | First Check Multi Drug Cup 12 for Marijuana (THC), Cocaine (Coc), Amphetamine (Amp)…Summary page 5…odiazepine Test System Toxicology DIO 21 CFR, 862.3250 Cocaine Test System Toxicology 5. Predicate Devices: K052115 The FIRST CHECK MULTI DRUG CUP Urine Test 6. Intended Use CLUNGENE Amphetamine Tests are immunochromatographic assays for… | 2005 |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 11 years and passes through 3 companies; a new generation was cleared every 10.7 years on median.
- 2 of the 2 ancestors have a recall of any class.
- 12 other devices also cite its predicate K052115.
How does its category compare?
All DKZ devicesDKZ Enzyme Immunoassay, Amphetamine: FDA decisions, review times, recalls and adverse event reports over 20 years. 2016, this device’s year, is highlighted.
FDA decisions per year · DKZ
1in 2024
2026 to Oct 25, outlined.
Median 510(k) review, days · DKZ
180in 2019
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · DKZ
1in 2017
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · DKZ
2in 2025
MAUDE reports naming product code DKZ, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 0 | — | 1 | 0 |
| 2008 | 2 | — | 3 | 12 |
| 2009 | 2 | — | 5 | 1 |
| 2010 | 4 | 233 | 0 | 1 |
| 2011 | 6 | 123 | 4 | 2 |
| 2012 | 5 | 55 | 0 | 0 |
| 2013 | 8 | 103 | 1 | 1 |
| 2014 | 8 | 128 | 3 | 9 |
| 2015 | 5 | 107 | 0 | 8 |
| 2016 | 5 | 215 | 0 | 8 |
| 2017 | 0 | — | 1 | 0 |
| 2018 | 3 | 128 | 0 | 0 |
| 2019 | 3 | 180 | 0 | 0 |
| 2020 | 1 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 3 |
| 2022 | 0 | — | 0 | 4 |
| 2023 | 2 | — | 0 | 7 |
| 2024 | 1 | — | 0 | 1 |
| 2025 | 0 | — | 0 | 2 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
CLUNGENE Amphetamine Tests are immunochromatographic assays for the qualitative determination of d-Amphetamine in human urine at cut-off concentration of 1000 ng/mL. The tests are available in a Cassette format, a Cup format, a Dip Card format, and a Split Key Cup format. The tests provide only preliminary test results. A more specific alternative chemical method must be used in order to obtain a confirmed analytical result. Gas Chromatography/Mass…
Read the full statement (379 words)
CLUNGENE Amphetamine Tests are immunochromatographic assays for the qualitative determination of d-Amphetamine in human urine at cut-off concentration of 1000 ng/mL. The tests are available in a Cassette format, a Cup format, a Dip Card format, and a Split Key Cup format.
The tests provide only preliminary test results. A more specific alternative chemical method must be used in order to obtain a confirmed analytical result. Gas Chromatography/Mass Spectrometry is the preferred confirmatory method. Clinical consideration and professional judgment should be exercised with any drug of abuse test result, particularly when the preliminary result is positive.
For in vitro diagnostic use only. The tests are intended for over-the-counter and for prescription use.
CLUNGENE Cocaine Tests are immunochromatographic assays for the qualitative determination of Cocaine in human urine at cut-off concentration of 300 ng/mL. The tests are available in a Cassette format, a Cup format, a Dip Card format, and a Split Key Cup format.
The tests provide only preliminary test results. A more specific alternative chemical method must be used in order to obtain a confirmed analytical result. Gas Chromatography/Mass Spectrometry is the preferred confirmatory method. Clinical consideration and professional judgment should be exercised with any drug of abuse test result, particularly when the preliminary result is positive.
For in vitro diagnostic use only. The tests are intended for over-the-counter and for prescription use.
CLUNGENE Oxazepam Tests are immunochromatographic assays for the qualitative determination of Oxazepam in human urine at cut-off concentration of 300 ng/mL. The tests are available in a Cassette format, a Cup format, a Dip Card format, and a Split Key Cup format.
The test may yield preliminary positive results even when prescription drug Oxazepam is ingested, at prescribed doses; it is not intended to distinguish between prescription use or abuse of this drug. There is no uniformly recognized cutoff concentration level for Oxazepam in urine. The tests provide only preliminary test results. A more specific alternative chemical method must be used in order to obtain a confirmed analytical result. Gas Chromatography/Mass Spectrometry is the preferred confirmatory method. Clinical consideration and professional judgment should be exercised with any drug of abuse test result, particularly when the preliminary result is positive.
For in vitro diagnostic use only. The tests are intended for over-the-counter and for prescription use.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K161251 · printed Nov 6, 2026
Cite this page
510(k) Report. “K161251: CLUNGENE Amphetamine Tests, CLUNGENE Cocaine Tests, CLUNGENE Oxazepam Tests.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K161251
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026