Class IIReported 2026-02-11

Product Name: Lumipulse G ¿-Amyloid 1-42-N Plasma Calibrators Model/Catalog Number: 235454 Software Version: Not Applicable Product Description: Lumipulse G ¿-Amyloid 1-42-N Plasma Calibrators: The ¿-Amyloid 1-42 plasma concentration of a specimen is automatically calculated from the calibration curve, which is automatically calculated from calibration data. The result of the calculation is reported in pg/mL. Lumipulse G ¿-Amyloid 1-42-N Plasma Calibrators: Liquid (Frozen), 1 ¿ 1.5 mL (4 Concentrations) CAL 1 0 pg/mL ¿-Amyloid 1-42-N Plasma Calibrator CAL 2 30 pg/mL ¿-Amyloid 1-42-N Plasma Calibrator CAL 3 100 pg/mL ¿-Amyloid 1-42-N Plasma Calibrator CAL 4 1000 pg/mL ¿-Amyloid 1-42-N Plasma Calibrator Contains Tris buffer with protein (bovine) and chemical stabilizers. Preservative: 0.1% ProClin 950. Component: Yes. Lumipulse G pTau217/B-Amyloid 1-42 Plasma Ratio

Reason for Recall

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).

Recall Number

Z-1306-2026

Classification

Class II

Status

Ongoing