510(k) Report

510(k) · Cleared

Recalled · Class II · 2026

Immunoglobulin Isotypes (GAM) for the EXENT Analyser; EXENT Analyser

K250159510(k) TraditionalCleared Oct 17, 2025269-day reviewClass II21 CFR 866.5510Recalls 1

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

The Binding Site Group, Ltd. · SGG Mass Spectrometric, Immunoglobulins (G, A, M, D, E)

Cleared on Oct 17, 2025 as substantially equivalent to K072889 (The Binding Site, Ltd., 2008) and 3 other predicates after a 269-day review. Its family tree reaches back 4 generations to 1996. It has been recalled once.

Decided
Oct 17, 2025
Review
269 days
Class
Class II
Product code
SGG
Recalls
1
Predicates
4

Its longest line of descent runs back 4 generations to K955907 (1996). 8 ancestors in all. No later device cites it as a predicate yet.

Other ancestors, by year cleared 2019: 1 other ancestor2008: 1 other ancestor1996: 1 other ancestor2009: 1 other ancestorK955907 · Boehringer Mannheim Iga Assay · Boehringer Mannheim Corp. · 1996K040435 · Roche Diagnostics Tina-Quant Iga Gen.2 · Roche Diagnostics Corp. · 2004 · recalledK103824 · Human Iga Liquid Reagent Kit for Use on Spa Plus · The Binding Site · 2012K191985 · Optilite IgA Kit · The Binding Site Group, Ltd. · 20191995200020052010201520202025
  1. Root · 4 generations backK955907 Boehringer Mannheim Iga AssayBoehringer Mannheim Corp. · 1996
  2. 3 generations backK040435 Roche Diagnostics Tina-Quant Iga Gen.2Roche Diagnostics Corp. · 2004 · Recalled
  3. 2 generations backK103824 Human Iga Liquid Reagent Kit for Use on Spa PlusThe Binding Site · 2012
  4. 1 generation backK191985 Optilite IgA KitThe Binding Site Group, Ltd. · 2019
  5. This deviceK250159 Immunoglobulin Isotypes (GAM) for the EXENT Analyser; EXENT AnalyserThe Binding Site Group, Ltd. · 2025
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−4K955907Boehringer Mannheim Iga AssayBoehringer Mannheim Corp.1996—
−3K040435Roche Diagnostics Tina-Quant Iga Gen.2Roche Diagnostics Corp.20041
−2K103824Human Iga Liquid Reagent Kit for Use on Spa PlusThe Binding Site2012—
−1K191985Optilite IgA KitThe Binding Site Group, Ltd.2019—
0 (this device)K250159Immunoglobulin Isotypes (GAM) for the EXENT Analyser; EXENT AnalyserThe Binding Site Group, Ltd.2025—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199610
200810
200910
201910
FIG. 1 — Lineage of K250159, 1996–2025Source: 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 SGG? 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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What was it cleared against? (4)

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
*K072889Human Igg Subclass Liquid Reagent Kits for Use on the Spaplus Analyser
Summary page 6
…obulins IgG, IgA, IgM Proprietary Name 510(k) Regulation section Product Code Classification Panel review Human IgG Subclass K072889 21 CFR 866.5510, CFN, Class II IM - Liquid Reagent Kits for Immunogl…
The Binding Site, Ltd.2008—
*K191985Optilite IgA Kit
Summary page 6
…D, and E Nephelometric, (82) Analyser immunological test Immunoglobuli Optilite IgA Kit K191985 system ns (G, A, M) Optilite IgM Kit K191635 Kappa (κ) and Lambda (λ) isotyping of Monoclonal…
The Binding Site Group, Ltd.2019—
*K191635Optilite IgM Kit
Summary page 6
…immunological test Immunoglobuli Optilite IgA Kit K191985 system ns (G, A, M) Optilite IgM Kit K191635 Kappa (κ) and Lambda (λ) isotyping of Monoclonal immunoglobulins IgG, IgA, IgM Proprietary Name 510(k) Regulat…
The Binding Site Group, Ltd.20191
*K960669Hydragel IF, 6 IF, 12 IF Penta Kits/Hydragel IF, Double IF, 2 IF, & 4 IF Kits
Summary page 6
…obulins IgG, IgA, IgM Proprietary Name 510(k) Regulation section Product Code Classification Panel review *HYDRAGEL K960669 21 CFR 866.5510, CFF, Class II IM - Immunofixation Immunogl…
Morax1996—

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
Apr 16, 2026Class IIZ-2362-2026Under Investigation by firmIt was reported that plates 2 and 3 were marked as passed , although it appeared that QC had not been performed on these plates, despite samples being measured. The potential clinical hazards include false or missed detection of M-protein…

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 29 years and passes through 4 companies; a new generation was cleared every 8.0 years on median.
  • 3 of the 8 ancestors have a recall of any class.

How does its category compare?

All SGG devices

SGG Mass Spectrometric, Immunoglobulins (G, A, M, D, E): FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.

FDA decisions per year · SGG

1in 2025

2025: 1
2007high 1 (2025) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · SGG

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

Recalls per year · SGG

No recall names SGG since 2007.

Adverse event reports per year · SGG

No MAUDE report names SGG 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
20170—00
20180—00
20190—00
20200—00
20210—00
20220—00
20230—00
20240—00
20251—00
20260—0—

What is it indicated for?

Immunoglobulin Isotypes (GAM) for the EXENT Analyser: The Immunoglobulin Isotypes (GAM) for the EXENT Analyser is a MALDI-TOF mass spectrometry immunoassay that is used in conjunction with the Binding Site Optilite IgG, IgA and IgM assays for the semi-quantitative in vitro measurement of monoclonal IgG, IgA, and IgM as a reflex test in serum for patients with a result suggestive of the presence of monoclonal immunoglobulins by serum protein…

Read the full statement (192 words)

Immunoglobulin Isotypes (GAM) for the EXENT Analyser:

The Immunoglobulin Isotypes (GAM) for the EXENT Analyser is a MALDI-TOF mass spectrometry immunoassay that is used in conjunction with the Binding Site Optilite IgG, IgA and IgM assays for the semi-quantitative in vitro measurement of monoclonal IgG, IgA, and IgM as a reflex test in serum for patients with a result suggestive of the presence of monoclonal immunoglobulins by serum protein electrophoresis (gel or capillary zone electrophoresis), or with an abnormal serum free light chain concentration and free light chain ratio result.

The assay is intended for use as an aid in the evaluation of monoclonal gammopathy of undetermined significance (MGUS); and as an aid in the diagnosis of smouldering multiple myeloma (SMM), multiple myeloma (MM), Waldenström's macroglobulinaemia, and AL amyloidosis.

Assay results should be used in conjunction with other laboratory and clinical findings.

EXENT Analyser:

The EXENT Analyser is an automated analyser intended for the qualitative and quantitative in vitro measurement of analytes in human body fluids used in conjunction with the EXENT assays. The device is designed for professional in vitro diagnostic use only and it is not a device for self-testing.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K250159: Immunoglobulin Isotypes (GAM) for the EXENT Analyser; EXENT Analyser.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K250159

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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