Product Name: Lumipulse G pTau 217 Plasma Calibrators Model/Catalog Number: 81557 ... recall (Fujirebio Diagnostics, Inc.)

Medical deviceClass IIOngoing

Summary: Fujirebio Diagnostics, Inc. is recalling Product Name: Lumipulse G pTau 217 Plasma Calibrators Model/Catalog Number: 81557 Software Version: Not Applicable Product Description: Lumipulse G pTau 217 Plasma Calibrators: The pTau 217 plasma concentration of a specimen is automatically calculated from the calibration curve, which is also a. 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 Calibrators Model/Catalog Number: 81557 Software Version: Not Applicable Product Description: Lumipulse G pTau 217 Plasma Calibrators: The pTau 217 plasma concentration of a specimen is automatically calculated from the calibration curve, which is also automatically calculated from calibration data. The result of the calculation is reported in pg/mL. Lumipulse G pTau 217 Plasma Calibrators: Liquid (Frozen), 1x1.5 mL (5 Concentrations) CAL 1 0 pg/mL pTau 217 Plasma Calibrator CAL 2 0.250 pg/mL pTau 217 Plasma Calibrator CAL 3 1.000 pg/mL pTau 217 Plasma Calibrator CAL 4 5.000 pg/mL pTau 217 Plasma Calibrator CAL 5 10.000 pg/mL pTau 217 Plasma Calibrator Contains Tris buffer with protein (bovine) and chemical stabilizers. Preservative: 0.1% ProClin 300, 0.05% ProClin 950 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: 81557; UDI-DI: 05414470815579; Lot Numbers: D5C6094U, D5C6125U;

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