510(k) Report

FDA product code · Immunology

Test, Epithelial Ovarian Tumor-Associated Antigen (Ca125)

LTKClass II21 CFR 866.6010510(k) required26 decisions since 198710 recalls

26 FDA decisions since 1987. 510(k) reviews decided 2021–2025 took a median of 216 days (half between 148 and 446). 10 recalls name this code, 0 of them Class I. The most-cited predicate is K020828, named by 3 later devices.

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

FIG. A — Illustration, immunology panel

Twenty years of LTK at a glance: how often FDA decides these devices, how long 510(k) reviews take, how often they are recalled, and how many adverse event reports name the code.

FDA decisions per year · LTK

1in 2024

2007: 12009: 22011: 12015: 22020: 12022: 12023: 12024: 1
2007high 2 (2009) · low 0 (2008)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · LTK

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

Recalls per year · LTK

1in 2013

2007: 12010: 32013: 1
2007high 3 (2010) · low 0 (2008)2026

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

Adverse event reports per year · LTK

4in 2025

2007: 42008: 92009: 312010: 122011: 52012: 332013: 142014: 302015: 112016: 42017: 152018: 82019: 152020: 52021: 22022: 22023: 62024: 62025: 4
2007high 33 (2012) · low 2 (2021)2025

MAUDE reports naming product code LTK, 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
20071—14
20080—09
20092—031
20100—312
20111—05
20120—033
20130—114
20140—030
20152—011
20160—04
20170—015
20180—08
20190—015
20201—05
20210—02
20221—02
20231—06
20241—06
20250—04
20260—0—
FIG. 1 — LTK by year, 2007–2026Sources: FDA decision databases, recall and enforcement reports, MAUDE · Data through Oct 25, 2026

Planning a device in LTK? A 510(k) Report ranks candidate predicates in this code by lineage, citations and recall history, with the review-time outlook.

See the 510(k) Report

Related product codes

Other codes under 21 CFR 866.6010.