510(k) Report

De Novo · Granted

Granted

First To Know Syphilis Test

DEN230090De NovoGranted Aug 16, 2024233-day reviewClass II21 CFR 866.3986

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Nowdiagnostics · SBZ Test For Detection Of Antibodies Associated With Syphilis Performed By Lay Users

Granted on Aug 16, 2024 as a new device type through De Novo after a 233-day review.

Decided
Aug 16, 2024
Review
233 days
Class
Class II
Product code
SBZ
Recalls
None

De Novo grants create a new device type without a predicate, so this family tree starts here.

FIG. 1 — Lineage of DEN230090Source: FDA De Novo database · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA De Novo 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 SBZ? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

  • Candidate predicates for a device like this, rankedin the report
  • Recall history across each candidate’s familyin the report
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Does it have a predicate?

De Novo decisions do not claim a predicate device.

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.

How does its category compare?

All SBZ devices

SBZ Test For Detection Of Antibodies Associated With Syphilis Performed By Lay Users: FDA decisions, review times, recalls and adverse event reports over 20 years. 2024, this device’s year, is highlighted.

FDA decisions per year · SBZ

1in 2024

2024: 1
2007high 1 (2024) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · SBZ

Too few SBZ 510(k)s in any year since 2007 to give a median.

Recalls per year · SBZ

No recall names SBZ since 2007.

Adverse event reports per year · SBZ

1in 2025

2025: 1
2007high 1 (2025) · low 0 (2007)2025

MAUDE reports naming product code SBZ, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20180—00
20190—00
20200—00
20210—00
20220—00
20230—00
20241—00
20250—01
20260—0—

What is it indicated for?

The First To Know Syphilis Test is a qualitative rapid membrane immunochromatographic assay for the detection of Treponema pallidum (syphilis) antibodies in human whole blood (capillary). This test is intended for over the counter (OTC) consumer use in individuals suspected of syphilis. Positive test results with the First To Know Syphilis Test alone are not sufficient to diagnose syphilis infection and must be followed by additional laboratory testing…

Read the full statement (153 words)

The First To Know Syphilis Test is a qualitative rapid membrane immunochromatographic assay for the detection of Treponema pallidum (syphilis) antibodies in human whole blood (capillary). This test is intended for over the counter (OTC) consumer use in individuals suspected of syphilis. Positive test results with the First To Know Syphilis Test alone are not sufficient to diagnose syphilis infection and must be followed by additional laboratory testing through a health care provider to confirm a diagnosis of syphilis.

This test is not a substitute for visits to a healthcare provider. The information provided by this product should not be used to start, stop or change any treatments without a healthcare provider.

Results of testing with the First To Know Syphilis Test will likely be positive for individuals previously diagnosed with syphilis, even if they were successfully treated. The First To Know Syphilis Test cannot determine whether there has been re-infection with syphilis.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “DEN230090: First To Know Syphilis Test.” Lineage record from FDA De Novo data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/DEN230090

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Page last updated Nov 3, 2026