510(k) Report

510(k) · Cleared

Recalled · Class II · 2016

Alkphase-B Assay Kit

K981373510(k) TraditionalCleared May 27, 199841-day reviewClass II21 CFR 862.1050Recalls 1

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

Metra Biosystems, Inc. · CIN Electrophoretic Separation, Alkaline Phosphatase Isoenzymes

Cleared on May 27, 1998 after a 41-day review. FDA’s file for it is a 510(k) statement, which names no predicate. It has been recalled once.

Decided
May 27, 1998
Review
41 days
Class
Class II
Product code
CIN
Recalls
1
Predicates
0

FDA’s file for it is a 510(k) statement, which names no predicate.

FIG. 1 — Lineage of K981373Source: 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), the FDA 510(k) statement (indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in CIN? 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 CIN device

  1. #1 K232904 Access Ostasescore 7.8 · 3 generations · no Class I recall
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What was it cleared against?

FDA’s file for it is a 510(k) statement, which names no predicate.

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
Jul 14, 2016Class IIZ-1797-2018Process controlThere is a possibility of low volume and/or leaking standard bottles.

No ancestor or descendant has a Class I recall.

How does its category compare?

All CIN devices

CIN Electrophoretic Separation, Alkaline Phosphatase Isoenzymes: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · CIN

1in 2024

2020: 12024: 1
2007high 1 (2020) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · CIN

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

Recalls per year · CIN

3in 2012

2011: 32012: 3
2007high 3 (2011) · low 0 (2007)2026

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

Adverse event reports per year · CIN

1in 2012

2011: 22012: 1
2007high 2 (2011) · low 0 (2007)2025

MAUDE reports naming product code CIN, 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—32
20120—31
20130—00
20140—00
20150—00
20160—00
20170—00
20180—00
20190—00
20201—00
20210—00
20220—00
20230—00
20241—00
20250—00
20260—0—

What is it indicated for?

Measurement of BAP is intended for use as an aid in the:

management of postmenopausal osteoporosis and Paget’s disease.

monitoring of postmenopausal women on hormonal or bisphosphonate therapy

prediction of skeletal response to hormonal therapy in postmenopausal women.

Indications for use read by OCR from a scanned FDA 510(k) statement, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K981373: Alkphase-B Assay Kit.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K981373

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Page last updated Nov 3, 2026