510(k) Report

510(k) · Cleared

Recalled · 2007

TDX Theophylline

K833070510(k) TraditionalCleared Nov 14, 198367-day reviewClass II21 CFR 862.3880Recalls 1

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

Abbott Laboratories · LER Fluorescent Immunoassay, Theophylline

Cleared on Nov 14, 1983 after a 67-day review. FDA has not posted a summary or statement for it, so its predicates are not known. It has been recalled once.

Decided
Nov 14, 1983
Review
67 days
Class
Class II
Product code
LER
Recalls
1
Predicates
0

FDA has not posted a summary or statement for it, so its predicates are not known.

FIG. 1 — Lineage of K833070Source: FDA 510(k) database · 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), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

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What was it cleared against?

FDA has not posted a summary or statement for it, so its predicates are not known.

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 11, 2007Not classifiedZ-0958-2007OtherA decrease in mP values (calibration curve Net Polarization value) has been observed with this reagent lot at all calibrator levels and may produce the following results: Calibration Error Code 148 (Polarization Too Small), Calibration…

No ancestor or descendant has a Class I recall.

How does its category compare?

All LER devices

LER Fluorescent Immunoassay, Theophylline: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · LER

FDA has decided no LER device since 2007.

Median 510(k) review, days · LER

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

Recalls per year · LER

1in 2007

2007: 1
2007high 1 (2007) · low 0 (2008)2026

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

Adverse event reports per year · LER

No MAUDE report names LER since 2007.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—10
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
20250—00
20260—0—
Cite this page

510(k) Report. “K833070: TDX Theophylline.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K833070

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Record history
  • FDA decision record loaded May 2, 2026
  • Page last updated Nov 3, 2026