Recall
FDAHealthJune 12, 2026

Tosoh Bioscience Inc — ST AIA-Pack Testosterone, IN VITRO DIAGNOSTIC USE ONLY for the quantitative measurement of testosterone in human serum on specific Tosoh AIA System analyzers, Model Number 00252

⚠️ The Test cup lot F level 1 low-quality control results values for the device were lower than expected on the Automated Immunoassay Analyzer (AIA) which could cause falsely elevated or falsely low total testosterone results. Such erroneous test results may lead to additional testing/diagnostic interventions and in limited cases, may lead to a delay in diagnosis and/or initiation of unnecessary or incorrect clinical treatment measures.

Is this relevant to me?

Geography
Nationwide
Source agency
FDA
Category
Health
Published
June 12, 2026

Global Distribution. US Nationwide.

What's affected?

Product
ST AIA-Pack Testosterone, IN VITRO DIAGNOSTIC USE ONLY for the quantitative measurement of testosterone in human serum on specific Tosoh AIA System analyzers, Model Number 0025204
Lot code
FX12404

Additional details

UDI-DI: 14560189210032; Lot Numbers: FX12404, FY12407, FY12406, FZ12408

What should I do?

Recommended action

Class II recall. Voluntary: Firm initiated Quantity affected: 310 units.

View original FDA notice →

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