510(k) Report

510(k) · Cleared

Cleared

SeptiCyte RAPID

K203748510(k) TraditionalCleared Nov 29, 2021341-day reviewClass II21 CFR 866.3215

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

Immunexpress, Inc. · PRE Rt-Qpcr Assay For Mrna Transcript Immune Biomarkers

Cleared on Nov 29, 2021 as substantially equivalent to K163260 (Immunexpress, Inc., 2017) after a 341-day review. Its family tree reaches back 2 generations to 2016. 1 later device descends from it.

Decided
Nov 29, 2021
Review
341 days
Class
Class II
Product code
PRE
Recalls
None
Predicates
1

Its longest line of descent runs back 2 generations to DEN150009 (2016). 1 later device descends from it, 1 citing it directly.

Descendants, by year cleared 2025: 1 descendant clearedDEN150009 · B.R.A.H.M.S PCT sensitive KRYPTOR · Brahms GmbH · 2016K163260 · SeptiCyte LAB · Immunexpress, Inc. · 2017201620182020202220242026
Descendants, by generation 1 generation forward: 1 descendant K163260 · SeptiCyte LAB · Immunexpress, Inc. · 2017DEN150009 · B.R.A.H.M.S PCT sensitive KRYPTOR · Brahms GmbH · 20160
  1. Root · 2 generations backDEN150009 B.R.A.H.M.S PCT sensitive KRYPTORBrahms GmbH · 2016
  2. 1 generation backK163260 SeptiCyte LABImmunexpress, Inc. · 2017
  3. This deviceK203748 SeptiCyte RAPIDImmunexpress, Inc. · 2021
  4. Descendant · cites it directly · 0 of its ownK241676 TriVerityInflammatix, Inc. · 2025

Most influential descendants

Showing 1 of 1 · See all
  • K241676TriVerityInflammatix, Inc. · 2025 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−2DEN150009B.R.A.H.M.S PCT sensitive KRYPTORBrahms GmbH2016—
−1K163260SeptiCyte LABImmunexpress, Inc.2017—
0 (this device)K203748SeptiCyte RAPIDImmunexpress, Inc.2021—
+1K241676TriVerityInflammatix, Inc.2025—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202510
FIG. 1 — Lineage of K203748, 2016–2025Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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

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 PRE? 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 PRE device

  1. #1 K241676 TriVerityscore 9.3 · 3 generations · no Class I recall
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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.

TypeNumberDeviceApplicantDecidedRecalls
*K163260SeptiCyte LAB
Summary page 5
…igher likelihood of sepsis. J. Substantial Equivalence Information: 1. Predicate device name(s): SeptiCyte LAB 2. Predicate 510(k) number(s): K163260 Page 7-2 3. Comparison with predicate: Similarities:…
Immunexpress, Inc.2017—

What descends from it? (1)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K241676TriVerityInflammatix, Inc.20250

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 5 years and passes through 2 companies; a new generation was cleared every 4.8 years on median.
  • None of the 2 ancestors has a recall.
  • Of its descendants, K241676 (Inflammatix, Inc., 2025) has gone furthest, with 0 descendants of its own.

How does its category compare?

All PRE devices

PRE Rt-Qpcr Assay For Mrna Transcript Immune Biomarkers: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.

FDA decisions per year · PRE

1in 2025

2017: 12021: 12023: 12025: 1
2007high 1 (2017) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · PRE

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

Recalls per year · PRE

No recall names PRE since 2007.

Adverse event reports per year · PRE

No MAUDE report names PRE since 2007.

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
20171—00
20180—00
20190—00
20200—00
20211—00
20220—00
20231—00
20240—00
20251—00
20260—0—

What is it indicated for?

The SeptiCyte ® RAPID test is a gene expression assay using reverse transcription polymerase chain reaction to quantify the relative expression levels of host response genes isolated from whole blood collected in the PAXgene ® Blood RNA Tube. The SeptiCyte ® RAPID test is used in conjunction with clinical assessments and other laboratory findings as an aid to differentiate infection-positive (sepsis) from infection-negative systemic inflammation in…

Read the full statement (118 words)

The SeptiCyte ® RAPID test is a gene expression assay using reverse transcription polymerase chain reaction to quantify the relative expression levels of host response genes isolated from whole blood collected in the PAXgene ® Blood RNA Tube. The SeptiCyte ® RAPID test is used in conjunction with clinical assessments and other laboratory findings as an aid to differentiate infection-positive (sepsis) from infection-negative systemic inflammation in patients suspected of sepsis on their first day of ICU admission. The SeptiCyte ® RAPID test generates a score (SeptiScore®) that falls within one of four discrete Interpretation Bands based on the increasing likelihood of infection-positive systemic inflammation. SeptiCyte ® RAPID is intended for in-vitro diagnostic use on the Biocartis IdyllaTM System.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K203748: SeptiCyte RAPID.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K203748

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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