510(k) · Cleared
ClearedvWF Ag
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Siemens Healthcare Diagnostics Products GmbH · GGP Test, Qualitative And Quantitative Factor Deficiency
Cleared on Jun 2, 2023 as substantially equivalent to K962675 (American Bioproducts Co., 1996) after a 445-day review. Its family tree reaches back 2 generations to 1986.
- Decided
- Jun 2, 2023
- Review
- 445 days
- Class
- Class II
- Product code
- GGP
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 2 generations to K861417 (1986). No later device cites it as a predicate yet.
View FIG. 1 as a table
Line of descent and top descendants
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 GGP? 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 GGP device
- #1 K251440 CRYOcheck Chromogenic Factor VIIIscore 10.5 · 3 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 |
|---|---|---|---|
| * | K962675 | Sta - Liatest VWF Test KitSummary page 4…eficiency Regulatory Class: Class II 510(k) Review Panel Hematology (81) 3. Predicate Device Name of Device: STA® - Liatest® VWF:Ag (K962675) Regulation Number: 21 CFR 864.7290 Regulation Description: Factor deficiency test Product Code: GJ… | 1996 |
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 37 years and passes through 2 companies; a new generation was cleared every 26.6 years on median.
- 1 of the 2 ancestors has a recall of any class.
How does its category compare?
All GGP devicesGGP Test, Qualitative And Quantitative Factor Deficiency: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.
FDA decisions per year · GGP
1in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · GGP
153in 2007
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · GGP
1in 2017
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · GGP
3in 2025
MAUDE reports naming product code GGP, 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 | 3 | 153 | 2 | 0 |
| 2008 | 2 | — | 0 | 0 |
| 2009 | 1 | — | 0 | 0 |
| 2010 | 0 | — | 1 | 0 |
| 2011 | 1 | — | 0 | 0 |
| 2012 | 0 | — | 2 | 4 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 1 | — | 0 | 1 |
| 2015 | 0 | — | 2 | 1 |
| 2016 | 0 | — | 0 | 0 |
| 2017 | 0 | — | 1 | 3 |
| 2018 | 1 | — | 0 | 3 |
| 2019 | 1 | — | 0 | 1 |
| 2020 | 2 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 2 |
| 2022 | 2 | — | 0 | 4 |
| 2023 | 2 | — | 0 | 0 |
| 2024 | 0 | — | 0 | 0 |
| 2025 | 1 | — | 0 | 3 |
| 2026 | 0 | — | 1 | — |
What is it indicated for?
In-vitro diagnostic automated assay for the quantitative determination of the von Willebrand antigen (VWF:Ag) in human plasma collected from venous blood samples in 3.2% sodium citrated tubes on the SYSMEX® CS-2500 analyzer.
As an aid used in the evaluation of patients aged 4 weeks and older with suspected or confirmed von Willebrand factor disorders and intended for prescription use.
Results of this test should always be interpreted in conjunction with the patient’s medical history, clinical presentation and other laboratory findings.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K220728 · printed Nov 4, 2026
Cite this page
510(k) Report. “K220728: vWF Ag.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K220728
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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