510(k) · Cleared
ClearedAdvia Centaur Testosterone (Tsto)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Siemens Healthcare Diagnostics, Inc. · CDZ Radioimmunoassay, Testosterones And Dihydrotestosterone
Cleared on Feb 21, 2014 as substantially equivalent to K934562 (Ciba Corning Diagnostics Corp., 1993) after a 100-day review. Its family tree reaches back 1 generation to 1993.
- Decided
- Feb 21, 2014
- Review
- 100 days
- Class
- Class I
- Product code
- CDZ
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 1 generation to K934562 (1993). No later device cites it as a predicate yet.
- Root · 1 generation backK934562 Ciba Corning Acs Testosterone ImmunoassayCiba Corning Diagnostics Corp. · 1993
- This deviceK133491 Advia Centaur Testosterone (Tsto)Siemens Healthcare Diagnostics, Inc. · 2014
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K934562 | Ciba Corning Acs Testosterone Immunoassay | Ciba Corning Diagnostics Corp. | 1993 | — |
| 0 (this device) | K133491 | Advia Centaur Testosterone (Tsto) | Siemens Healthcare Diagnostics, Inc. | 2014 | — |
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 CDZ? 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 CDZ device
- #1 K252728 IDS-iSYS Total Testosteronescore 11.8 · 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 |
|---|---|---|---|
| * | K934562 | Ciba Corning Acs Testosterone ImmunoassaySummary page 1…862.1680 4. Predicate Device Information Predicate Device Name: ADVIA Centaur Testosterone (TSTO) assay 510(k) Number: k934562 5. .Intended Use I Indications for Use For in vitro diagnostic use in the quantitative determination of total testos… | 1993 |
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?
- Its one ancestor has no recall.
- 1 other device also cites its predicate K934562.
How does its category compare?
All CDZ devicesCDZ Radioimmunoassay, Testosterones And Dihydrotestosterone: FDA decisions, review times, recalls and adverse event reports over 20 years. 2014, this device’s year, is highlighted.
FDA decisions per year · CDZ
2in 2024
2026 to Oct 25, outlined.
Median 510(k) review, days · CDZ
141in 2019
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · CDZ
1in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · CDZ
17in 2025
MAUDE reports naming product code CDZ, 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 | 1 | — | 0 | 6 |
| 2008 | 0 | — | 0 | 3 |
| 2009 | 1 | — | 0 | 1 |
| 2010 | 2 | — | 1 | 1 |
| 2011 | 2 | — | 0 | 19 |
| 2012 | 1 | — | 0 | 9 |
| 2013 | 1 | — | 1 | 7 |
| 2014 | 1 | — | 0 | 10 |
| 2015 | 2 | — | 0 | 7 |
| 2016 | 4 | 276 | 0 | 5 |
| 2017 | 0 | — | 0 | 12 |
| 2018 | 1 | — | 1 | 5 |
| 2019 | 4 | 141 | 0 | 3 |
| 2020 | 1 | — | 0 | 12 |
| 2021 | 0 | — | 0 | 7 |
| 2022 | 1 | — | 1 | 3 |
| 2023 | 1 | — | 0 | 10 |
| 2024 | 2 | — | 1 | 11 |
| 2025 | 0 | — | 1 | 17 |
| 2026 | 1 | — | 1 | — |
What is it indicated for?
For in vitro diagnostic use in the quantitative determination of total testosterone (bound and unbound) in serum using the ADVIA Centaur and ADVIA Centaur XP Systems.
Measurements of testosterone are used in the diagnosis and treatment of disorders involving the male sex hormones (androgens), including primary and secondary hypogonadism, delayed or precocious puberty, impotence in males and, in females, hirsutism (excessive hair) and virilization (masculinization) due to tumors, polycystic ovaries, and adrenogenital syndromes.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K133491 · printed Nov 6, 2026
Cite this page
510(k) Report. “K133491: Advia Centaur Testosterone (Tsto).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K133491
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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