510(k) · Cleared
ClearedRoche Diagnostics Elecsys Folate II Assay
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Roche Diagnostics Corp. · CGN Acid, Folic, Radioimmunoassay
Cleared on Jun 25, 2003 as substantially equivalent to K973674 (Boehringer Mannheim Corp., 1997) after a 19-day review. Its family tree reaches back 2 generations to 1994. 9 later devices descend from it.
- Decided
- Jun 25, 2003
- Review
- 19 days
- Class
- Class II
- Product code
- CGN
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 2 generations to K935286 (1994). 9 later devices descend from it, 1 citing it directly.
- Root · 2 generations backK935286 Quantaphase II B12/FolateBio-Rad · 1994
- 1 generation backK973674 Elecsys FolateBoehringer Mannheim Corp. · 1997
- This deviceK031756 Roche Diagnostics Elecsys Folate II AssayRoche Diagnostics Corp. · 2003
- Descendant · cites it directly · 8 of its ownK043318 Modification to Roche Elecsys Folate II ImmunoassayRoche Diagnostics Corp. · 2004 · Recalled
- Descendant · 2 generations on · 7 of its ownK082340 Roche Elecsys Folate Iii, Roche Elecsys RBC Folate Hemolysing…Roche Diagnostics Corp. · 2009
- Descendant · 3 generations on · 3 of its ownK111506 Elecsys Precicontrol Varia 3Roche Diagnostics · 2011 · Recalled
- Descendant · 4 generations on · 2 of its ownK132828 Elecsys Calcitonin; Immunoassay, Calset, Calcheck 5; Elecsys…Roche Diagnostics · 2013
- Descendant · 3 generations on · 1 of its ownK103716 Roche Elecsys Folate RBC; Roche Elecsys Folate RBC CalsetRoche Diagnostics · 2011
Showing 5 of 9 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 9 · See all- K043318Modification to Roche Elecsys Folate II ImmunoassayRoche Diagnostics Corp. · 2004 · cites it directly8descendants
- K082340Roche Elecsys Folate Iii, Roche Elecsys RBC Folate Hemolysing Reagent, Roche Elecsys…Roche Diagnostics Corp. · 2009 · 2 generations on7descendants
- K111506Elecsys Precicontrol Varia 3Roche Diagnostics · 2011 · 3 generations on3descendants
- K132828Elecsys Calcitonin; Immunoassay, Calset, Calcheck 5; Elecsys Precicontrol Varia 3Roche Diagnostics · 2013 · 4 generations on2descendants
- K103716Roche Elecsys Folate RBC; Roche Elecsys Folate RBC CalsetRoche Diagnostics · 2011 · 3 generations on1descendant
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −2 | K935286 | Quantaphase II B12/Folate | Bio-Rad | 1994 | — |
| −1 | K973674 | Elecsys Folate | Boehringer Mannheim Corp. | 1997 | — |
| 0 (this device) | K031756 | Roche Diagnostics Elecsys Folate II Assay | Roche Diagnostics Corp. | 2003 | — |
| +1 | K043318 | Modification to Roche Elecsys Folate II Immunoassay | Roche Diagnostics Corp. | 2004 | 1 |
| +2 | K082340 | Roche Elecsys Folate Iii, Roche Elecsys RBC Folate Hemolysing Reagent, Roche… | Roche Diagnostics Corp. | 2009 | — |
| +3 | K111506 | Elecsys Precicontrol Varia 3 | Roche Diagnostics | 2011 | 1 |
| +4 | K132828 | Elecsys Calcitonin; Immunoassay, Calset, Calcheck 5; Elecsys Precicontrol… | Roche Diagnostics | 2013 | — |
| +3 | K103716 | Roche Elecsys Folate RBC; Roche Elecsys Folate RBC Calset | Roche Diagnostics | 2011 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2004 | 1 | 0 |
| 2009 | 1 | 0 |
| 2011 | 2 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2018 | 1 | 0 |
| 2024 | 1 | 0 |
| 2026 | 1 | 0 |
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 CGN? 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 CGN device
- #1 K233060 Elecsys Folate IIIscore 9.9 · 9 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 |
|---|---|---|---|
| * | K973674 | Elecsys FolateSummary page 1…Modular Analytics E l 70 immunoassay analyzers. Predicate We claim substantial equivalence to the currently marketed ElecsysB Folate Device Assay. (K973674). 23 510(k) Summa… | 1997 |
What descends from it? (9)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K043318 | Modification to Roche Elecsys Folate II Immunoassay | 2004 | 8 |
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 9 years and passes through 3 companies; a new generation was cleared every 5.6 years on median.
- None of the 2 ancestors has a recall.
- Of its descendants, K043318 (Roche Diagnostics Corp., 2004) has gone furthest, with 8 descendants of its own.
How does its category compare?
All CGN devicesCGN Acid, Folic, Radioimmunoassay: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · CGN
1in 2024
2026 to Oct 25, outlined.
Median 510(k) review, days · CGN
Too few CGN 510(k)s in any year since 2007 to give a median.
Recalls per year · CGN
3in 2019
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · CGN
9in 2025
MAUDE reports naming product code CGN, 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 | — | 2 | 26 |
| 2008 | 0 | — | 1 | 0 |
| 2009 | 2 | — | 1 | 3 |
| 2010 | 1 | — | 1 | 0 |
| 2011 | 1 | — | 0 | 28 |
| 2012 | 0 | — | 2 | 11 |
| 2013 | 0 | — | 1 | 2 |
| 2014 | 1 | — | 0 | 4 |
| 2015 | 0 | — | 0 | 1 |
| 2016 | 1 | — | 0 | 4 |
| 2017 | 0 | — | 0 | 6 |
| 2018 | 1 | — | 2 | 2 |
| 2019 | 0 | — | 3 | 1 |
| 2020 | 1 | — | 0 | 5 |
| 2021 | 0 | — | 0 | 3 |
| 2022 | 0 | — | 0 | 13 |
| 2023 | 1 | — | 0 | 8 |
| 2024 | 1 | — | 0 | 19 |
| 2025 | 0 | — | 0 | 9 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
Binding assay for the in vitro quantitative determination of folate in human serum.
Measurements obtained by this device are used in the diagnosis and treatment of anemias of gastrointestinal malabsorption.
The binding assay is intended for use on the Roche Elecsys 2010 and Modular Analytics E170 immunoassay analyzers.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K031756 · printed Nov 6, 2026
Cite this page
510(k) Report. “K031756: Roche Diagnostics Elecsys Folate II Assay.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K031756
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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