510(k) · Cleared
ClearedAbuscreen Ontrak for THC
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Roche Diagnostic Systems, Inc. · LDJ Enzyme Immunoassay, Cannabinoids
Cleared on Dec 13, 1990 after a 45-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 10 later devices descend from it.
- Decided
- Dec 13, 1990
- Review
- 45 days
- Class
- Class II
- Product code
- LDJ
- Recalls
- None
- Predicates
- 0
10 later devices descend from it, 1 citing it directly.
- This deviceK904856 Abuscreen Ontrak for THCRoche Diagnostic Systems, Inc. · 1990
- Descendant · cites it directly · 9 of its ownK973075 Ontrak Teststik for Amphetamines, Ontrak Teststik for Cocaine…Roche Diagnostic Systems, Inc. · 1997
- Descendant · 2 generations on · 6 of its ownK994164 Ontrak Teststik 2 for Cocaine/THC, Cat. 1118579Roche Diagnostics Corp. · 2000
- Descendant · 3 generations on · 5 of its ownK033902 Ontrak Testcup II and Onsite CupkitVarian, Inc. · 2004
- Descendant · 4 generations on · 4 of its ownK060896 Modification to Ontrak Testcup II and Onsite CupkitVarian, Inc. · 2006
- Descendant · 5 generations on · 2 of its ownK153192 Chemtrue Multi-Panel Drug Screen Dip Card/Cup Tests, Chemtrue…Chemtron Biotech, Inc. · 2016
Showing 5 of 10 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 10 · See all- K973075Ontrak Teststik for Amphetamines, Ontrak Teststik for Cocaine, Ontrak Teststik for…Roche Diagnostic Systems, Inc. · 1997 · cites it directly9descendants
- K994164Ontrak Teststik 2 for Cocaine/THC, Cat. 1118579Roche Diagnostics Corp. · 2000 · 2 generations on6descendants
- K033902Ontrak Testcup II and Onsite CupkitVarian, Inc. · 2004 · 3 generations on5descendants
- K060896Modification to Ontrak Testcup II and Onsite CupkitVarian, Inc. · 2006 · 4 generations on4descendants
- K153192Chemtrue Multi-Panel Drug Screen Dip Card/Cup Tests, Chemtrue Multi-Panel Drug Screen…Chemtron Biotech, Inc. · 2016 · 5 generations on2descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K904856 | Abuscreen Ontrak for THC | Roche Diagnostic Systems, Inc. | 1990 | — |
| +1 | K973075 | Ontrak Teststik for Amphetamines, Ontrak Teststik for Cocaine, Ontrak Teststik… | Roche Diagnostic Systems, Inc. | 1997 | — |
| +2 | K994164 | Ontrak Teststik 2 for Cocaine/THC, Cat. 1118579 | Roche Diagnostics Corp. | 2000 | — |
| +3 | K033902 | Ontrak Testcup II and Onsite Cupkit | Varian, Inc. | 2004 | — |
| +4 | K060896 | Modification to Ontrak Testcup II and Onsite Cupkit | Varian, Inc. | 2006 | — |
| +5 | K153192 | Chemtrue Multi-Panel Drug Screen Dip Card/Cup Tests, Chemtrue Multi-Panel Drug… | Chemtron Biotech, Inc. | 2016 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1997 | 1 | 0 |
| 2000 | 3 | 0 |
| 2004 | 1 | 0 |
| 2006 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2023 | 1 | 0 |
| 2026 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in LDJ? 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 LDJ device
- #1 K232732 Rapid Marijuana (THC) Test Strip 20, Rapid…score 9.4 · 10 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against?
FDA has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (10)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K973075 | Ontrak Teststik for Amphetamines, Ontrak Teststik for Cocaine, Ontrak Teststik for… | 1997 | 9 |
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?
- Of its descendants, K973075 (Roche Diagnostic Systems, Inc., 1997) has gone furthest, with 9 descendants of its own.
How does its category compare?
All LDJ devicesLDJ Enzyme Immunoassay, Cannabinoids: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · LDJ
2in 2024
2026 to Oct 25, outlined.
Median 510(k) review, days · LDJ
48in 2015
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · LDJ
1in 2023
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · LDJ
1in 2015
MAUDE reports naming product code LDJ, 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 | — | 0 | 0 |
| 2008 | 2 | — | 4 | 0 |
| 2009 | 1 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 4 | 219 | 0 | 0 |
| 2012 | 4 | 193 | 0 | 0 |
| 2013 | 3 | 162 | 0 | 0 |
| 2014 | 2 | — | 0 | 0 |
| 2015 | 3 | 48 | 0 | 1 |
| 2016 | 1 | — | 0 | 0 |
| 2017 | 0 | — | 0 | 0 |
| 2018 | 0 | — | 0 | 0 |
| 2019 | 1 | — | 0 | 0 |
| 2020 | 0 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 0 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 1 | — | 1 | 0 |
| 2024 | 2 | — | 0 | 0 |
| 2025 | 0 | — | 0 | 0 |
| 2026 | 0 | — | 0 | — |
https://510kreport.com/device/K904856 · printed Nov 6, 2026
Cite this page
510(k) Report. “K904856: Abuscreen Ontrak for THC.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K904856
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026