510(k) Report

510(k) · Cleared

Recalled · Class II · 2024

LIAISON Calprotectin, LIAISON Q.S.E.T. Device Plus

K213858510(k) TraditionalCleared Jul 26, 2022228-day reviewClass II21 CFR 866.5180Recalls 1

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

DiaSorin, Inc. · NXO Calprotectin, Fecal

Cleared on Jul 26, 2022 as substantially equivalent to K182698 (DiaSorin, Inc., 2018) after a 228-day review. Its family tree reaches back 5 generations to 1995. It has been recalled once.

Decided
Jul 26, 2022
Review
228 days
Class
Class II
Product code
NXO
Recalls
1
Predicates
1

Its longest line of descent runs back 5 generations to K954418 (1995). 9 ancestors in all. No later device cites it as a predicate yet.

  1. Root · 5 generations backK954418 Intact Parathyroid Hormone (PTH) Immunoassay (Modification)Nichols Institute Diagnostics · 1995
  2. 4 generations backK020217 Acs:180 and Advia Centaur Ipth ImmunoassayBayer Diagnostics Corp. · 2002 · Recalled
  3. 3 generations backK132515 Liaison N-Tact PTH Gen II, Control Set, Calibration VerifiersDiaSorin, Inc. · 2013
  4. 2 generations backK141463 Liason XL1,25 Dihydroxyvitamin D; Control Set, Calibration VerifiersDiaSorin, Inc. · 2014
  5. 1 generation backK182698 LIAISON Calprotectin, LIAISON Calprotectin Control Set, LIAISON…DiaSorin, Inc. · 2018
  6. This deviceK213858 LIAISON Calprotectin, LIAISON Q.S.E.T. Device PlusDiaSorin, Inc. · 2022
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−5K954418Intact Parathyroid Hormone (PTH) Immunoassay (Modification)Nichols Institute Diagnostics1995—
−4K020217Acs:180 and Advia Centaur Ipth ImmunoassayBayer Diagnostics Corp.20024
−3K132515Liaison N-Tact PTH Gen II, Control Set, Calibration VerifiersDiaSorin, Inc.2013—
−2K141463Liason XL1,25 Dihydroxyvitamin D; Control Set, Calibration VerifiersDiaSorin, Inc.2014—
−1K182698LIAISON Calprotectin, LIAISON Calprotectin Control Set, LIAISON Calprotectin…DiaSorin, Inc.2018—
0 (this device)K213858LIAISON Calprotectin, LIAISON Q.S.E.T. Device PlusDiaSorin, Inc.2022—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200210
200410
200610
200910
FIG. 1 — Lineage of K213858, 1995–2022Source: 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 NXO? 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 NXO device

  1. #1 K232057 BÜHLMANN fCAL® turbo and CALEX® Capscore 8.3 · 6 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
*K182698LIAISON Calprotectin, LIAISON Calprotectin Control Set, LIAISON Calprotectin Calibration…
Summary page 4
…NXO PREDICATE DEVICES : LIAISON® Calprotectin, LIAISON® Q.S.E.T. Device (K182698) DEVICE DESCRIPTION: INTENDED USE: The DiaSorin LIAISON® Calprotectin assay is an in vitro diagnostic chemiluminescent immunoas…
DiaSorin, Inc.2018—

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

Recalls of this device

DateClassRecallRoot causeReason
Nov 7, 2024Class IIZ-0677-2025Process controlCustomer complaints were received alleging leaking devices and insufficient buffer volume. Diasorin's internal investigation determined that 0.14% of the LIAISON Q.S.E.T. Device Plus in the lots identified have loose clear caps, which may…

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 27 years and passes through 3 companies; a new generation was cleared every 4.0 years on median.
  • 2 of the 9 ancestors have a recall of any class.

How does its category compare?

All NXO devices

NXO Calprotectin, Fecal: FDA decisions, review times, recalls and adverse event reports over 20 years. 2022, this device’s year, is highlighted.

FDA decisions per year · NXO

1in 2024

2014: 12016: 12017: 12018: 32019: 52022: 12023: 12024: 1
2007high 5 (2019) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · NXO

90in 2019

2018: 90 days median2019: 90 days median
2007high 90 (2018)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · NXO

2in 2025

2024: 12025: 2
2007high 2 (2025) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · NXO

1in 2022

2022: 1
2007high 1 (2022) · low 0 (2007)2025

MAUDE reports naming product code NXO, 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
20141—00
20150—00
20161—00
20171—00
201839000
201959000
20200—00
20210—00
20221—01
20231—00
20241—10
20250—20
20260—0—

What is it indicated for?

The DiaSorin LIAISON® Calprotectin assay is an in vitro diagnostic chemiluminescent immunoassay (CLIA) intended for the quantitative measurement, in human stool, of fecal calprotectin, a neutrophilic protein that is a marker of mucosal inflammation. The LIAISON® Calprotectin assay can be used as an aid in the diagnosis of inflammatory bowel diseases (IBD), specifically Crohn’s disease and ulcerative colitis, and as an aid in differentiation of IBD from…

Read the full statement (131 words)

The DiaSorin LIAISON® Calprotectin assay is an in vitro diagnostic chemiluminescent immunoassay (CLIA) intended for the quantitative measurement, in human stool, of fecal calprotectin, a neutrophilic protein that is a marker of mucosal inflammation. The LIAISON® Calprotectin assay can be used as an aid in the diagnosis of inflammatory bowel diseases (IBD), specifically Crohn’s disease and ulcerative colitis, and as an aid in differentiation of IBD from irritable bowel syndrome (IBS). Test results are to be used in conjunction with information obtained from the patients’ clinical evaluation and other diagnostic procedures.

The test has to be performed on the LIAISON® Analyzer Family.

The DiaSorin LIAISON® Q.S.E.T. Device Plus (Quantitative Stool Extraction and Test) is intended for use in the preparation of human stool specimens for testing in the LIAISON® Calprotectin assay.

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. “K213858: LIAISON Calprotectin, LIAISON Q.S.E.T. Device Plus.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K213858

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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