510(k) · Cleared
ClearedTheranos Herpes Simplex Virus-1 IgG Assay
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Theranos, Inc. · MXJ Enzyme Linked Immunosorbent Assay, Herpes Simplex Virus, Hsv-1
Cleared on Jul 2, 2015 as substantially equivalent to K000238 (Mrl Diagnostics, 2000) after a 232-day review. Its family tree reaches back 1 generation to 2000.
- Decided
- Jul 2, 2015
- Review
- 232 days
- Class
- Class II
- Product code
- MXJ
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 1 generation to K000238 (2000). No later device cites it as a predicate yet.
- Root · 1 generation backK000238 HSV-1 & HSV-2 Differentiation Immunoblot Igg, Model IB0900GMrl Diagnostics · 2000 · Recalled
- This deviceK143236 Theranos Herpes Simplex Virus-1 IgG AssayTheranos, Inc. · 2015
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K000238 | HSV-1 & HSV-2 Differentiation Immunoblot Igg, Model IB0900G | Mrl Diagnostics | 2000 | 1 |
| 0 (this device) | K143236 | Theranos Herpes Simplex Virus-1 IgG Assay | Theranos, Inc. | 2015 | — |
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 MXJ? 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 MXJ device
- #1 K213987 ARCHITECT HSV-1 IgG, ARCHITECT HSV-1 IgG…score 6.0 · 1 generation · no Class I recall
- #2 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 |
|---|---|---|---|
| * | K000238 | HSV-1 & HSV-2 Differentiation Immunoblot Igg, Model IB0900GSummary page 4…es Simplex Virus, HSV-1) Panel: Microbiology (83) III. PREDICATE DEVICE HerpeSelect® 1 and 2 Immunoblot IgG (K000238; Focus Diagnostics, Inc.) 1 THERANOS, INC.… | 2000 |
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 a recall.
- 13 other devices also cite its predicate K000238.
How does its category compare?
All MXJ devicesMXJ Enzyme Linked Immunosorbent Assay, Herpes Simplex Virus, Hsv-1: FDA decisions, review times, recalls and adverse event reports over 20 years. 2015, this device’s year, is highlighted.
FDA decisions per year · MXJ
1in 2023
2026 to Oct 25, outlined.
Median 510(k) review, days · MXJ
123in 2007
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · MXJ
No recall names MXJ since 2007.
Adverse event reports per year · MXJ
1in 2025
MAUDE reports naming product code MXJ, 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 | 123 | 0 | 1 |
| 2008 | 2 | — | 0 | 0 |
| 2009 | 1 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 1 | — | 0 | 0 |
| 2012 | 2 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 1 | — | 0 | 1 |
| 2015 | 1 | — | 0 | 0 |
| 2016 | 1 | — | 0 | 2 |
| 2017 | 0 | — | 0 | 1 |
| 2018 | 1 | — | 0 | 1 |
| 2019 | 0 | — | 0 | 1 |
| 2020 | 0 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 2 |
| 2022 | 1 | — | 0 | 0 |
| 2023 | 1 | — | 0 | 140 |
| 2024 | 0 | — | 0 | 3 |
| 2025 | 0 | — | 0 | 1 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
The Theranos™ HSV-1 IgG Assay is a chemiluminescent immunoassay intended for the qualitative detection of IgG antibodies to herpes simplex virus type 1 (HSV-l) in human serum, in K2-EDTA anticoagulated human plasma from venous blood, and in human fingerstick K2-EDTA anticoagulated whole blood obtained with the Theranos Capillary Tubes and Nanotainer Tubes. The test is indicated for sexually active individuals and expectant mothers as an aid in the…
Read the full statement (144 words)
The Theranos™ HSV-1 IgG Assay is a chemiluminescent immunoassay intended for the qualitative detection of IgG antibodies to herpes simplex virus type 1 (HSV-l) in human serum, in K2-EDTA anticoagulated human plasma from venous blood, and in human fingerstick K2-EDTA anticoagulated whole blood obtained with the Theranos Capillary Tubes and Nanotainer Tubes. The test is indicated for sexually active individuals and expectant mothers as an aid in the presumptive diagnosis of HSV-l infection. The predictive value of positive and negative results depends on the population’s prevalence and the pretest likelihood of HSV-1.
The test is not FDA cleared for screening blood or plasma donors. The performance of this assay has not been established for use in a pediatric population, neonates and immunocompromised patients.
The Theranos HSV-1 IgG Assay is for use with the Theranos System which performs automated sample processing steps and result analysis.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K143236 · printed Nov 6, 2026
Cite this page
510(k) Report. “K143236: Theranos Herpes Simplex Virus-1 IgG Assay.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K143236
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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