Fujirebio Diagnostics, Inc. recalls Product Name: Lumipulse ¿-Amyloid Plasma Controls Model/Catalog Number: 81559 Softwar…

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).

Product Name: Lumipulse ¿-Amyloid Plasma Controls Model/Catalog Number: 81559 Software Version: Not Applicable Product Description: Lumipulse ¿-Amyloid Plasma Controls: This quality control product can be used as an objective judgement of the laboratory s procedures and personnel techniques when analyzing ¿-amyloid1-42 in K2EDTA plasma on the LUMIPULSE G System. It is a valuable tool to assess good laboratory practices. Two levels of control are available to compare observations with expected ranges therefore assuring consistent performance of the testing system within the clinical range. Lumipulse ¿-Amyloid Plasma Controls: Liquid (Frozen), 2 ¿2 Concentrations L1 Level 1 (2¿ 1.5 mL) L2 Level 2 (2¿ 1.5 mL) 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

On or about December 11, 2025 URGENT PRODUCT CORRECTION NOTIFICATION letters were sent to customers. Actions to be taken: - Immediately discontinue using the associated Lots listed above for the Lumipulse G pTau217/-Amyloid 1-42 Plasma Ratio. - Review this letter with your Medical Director to determine the appropriate course of action, including for any previously generated results, if applicable. - Notify your ordering physician or health care provider as appropriate. - The test results must be interpreted in conjunction with other diagnostic tools and clinical information. - Please retain this letter with your laboratory records and forward this leer to those who may have received this product.

• FDA enforcement recordOfficial FDA database entry for Z-1307-2026
• FDA 510(k) clearance · K242706The device's official FDA premarket clearance record
• FDA device classification · SETOfficial FDA classification for this device type
• CFR regulation · 21 CFR 866.5840The federal regulation governing this device
• FDA recall announcementSearch FDA.gov for the official press announcement
• Find Fujirebio Diagnostics, Inc.Search for the manufacturer's official notice
• News coverageRecent reporting on this recall and manufacturer
• openFDA data recordThe raw JSON record this page is built from

Source: U.S. FDA openFDA device enforcement reports. This summary is informational and may lag or differ from the official record. Always verify against the FDA before acting.