# K981521: Aia-Pack Tpoab Assay

- Pathway: 510(k) (Traditional)
- Applicant: Tosoh Medics, Inc.
- Decided: Oct 8, 1998 after 163 days
- Product code: JZO (System, Test, Thyroid Autoantibody)
- Device class: 2
- Regulation: 21 CFR 866.5870
- Recalls of this device: 2 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Recalls of this device
- Jun 5, 2018 · Class III · Z-2827-2018: Distribution of unapproved product labeling
- Feb 8, 2017 · Class III · Z-2168-2017: The label contains two different methodologies. Quality Control values for non-FDA approved methodology (CL) are on the label in addition to the FDA approved methodology values (AIA). Two sets of inst

## Indications for use
AIA-PACK TPOAD is intended for IN VITRO DIAGNOSTIC USE ONLY for the quantitative measurement of anti-thyroid peroxidase antibodies (TPOAD) in human serum on specific TOSOH AIA System analyzers. Measurements obtained by this device aid in the diagnosis of autoimmune thyroid disorders, such as Graves’ disease and Hashimoto’s disease.

Source page: https://510kreport.com/device/K981521
Methodology: https://510kreport.com/methodology