Product Name: Lumipulse G pTau 217 Plasma Immunoreaction Cartridges Model/Catalog... recall (Fujirebio Diagnostics, Inc.)

Medical deviceClass IIOngoing

Summary: Fujirebio Diagnostics, Inc. is recalling Product Name: Lumipulse G pTau 217 Plasma Immunoreaction Cartridges Model/Catalog Number: 81550 Software Version: Not Applicable Product Description: Lumipulse G pTau 217 Plasma Immunoreaction Cartridges (IRC): Lumipulse G pTau 217 Plasma is an assay system, including a set of immunoassay reagen. Reason: Customers may experience inaccurate test results by observing a higher frequency of classification in the indeterminate and positive zone and/or low specificity when compared back to FDA-cleared CSF ratio/PET imaging, due to falsely elevated positive ratio or falsely elevated indeterminate ratio results causing an incorrect classification of a patient as having amyloid pathology associated with Alzheimer s disease (positive result) and/or requiring more clinical testing of that patient (indeterminate result).

What is being recalled

Product Name: Lumipulse G pTau 217 Plasma Immunoreaction Cartridges Model/Catalog Number: 81550 Software Version: Not Applicable Product Description: Lumipulse G pTau 217 Plasma Immunoreaction Cartridges (IRC): Lumipulse G pTau 217 Plasma is an assay system, including a set of immunoassay reagents (Lumipulse G pTau 217 Plasma IRC), for the quantitative measurement of pTau 217 in K2EDTA plasma specimens based on chemiluminescent enzyme immunoassay (CLEIA) technology by a specific two-step immunoassay method on the LUMIPULSE G System. 3 ¿ 14 Tests: 3 racks, 14 IRCs per rack, 1 test per IRC. Each IRC contains (abbreviated contents): 1. Antibody-Coated Particle Solution: (Contains anti-phosphorylated Tau (217) monoclonal antibody (mouse)-coated particles). This solution contains gelatin and turns into gel at 15¿C or lower, 2. Enzyme-Labeled Antibody Solution: (Contains alkaline phosphatase (ALP)-labeled anti-Tau monoclonal antibodies (mouse) conjugate), 3. Assay Specific Solution: (Contains chemical stabilizers in 50 mM Tris buffer) Component: Yes. Lumipulse G pTau217/B-Amyloid 1-42 Plasma Ratio

Why

Customers may experience inaccurate test results by observing a higher frequency of classification in the indeterminate and positive zone and/or low specificity when compared back to FDA-cleared CSF ratio/PET imaging, due to falsely elevated positive ratio or falsely elevated indeterminate ratio results causing an incorrect classification of a patient as having amyloid pathology associated with Alzheimer s disease (positive result) and/or requiring more clinical testing of that patient (indeterminate result).

How serious is it

Class II is the middle level: using or being exposed to this product may cause temporary or medically reversible health problems, and the chance of serious harm is remote.

Where it was sold

US Nationwide distribution in the states of Arizona, California, Florida, Indiana, Kansas, Kentucky, Maryland, Massachusetts, Minnesota, New Jersey, Pennsylvania, Texas, Washington. (states named: Arizona, California, Florida, Indiana, Kansas, Kentucky, Massachusetts, Maryland, Minnesota, New Jersey, Pennsylvania, Texas, Washington)

How to tell if yours is affected

Model/Catalog Number: 81550; UDI-DI: 05414470815500; Lot Numbers: D4C6028U, D4C6029U, D4C6051U, D4C6052U;

What to do

Check the model, lot or serial numbers above against your device. If yours is affected, contact the manufacturer or your healthcare provider before you stop using a device you rely on.

Recall facts

More recalls from Fujirebio Diagnostics, Inc. · all medical device recalls · recalls from December 2025

Official FDA record