Fujirebio Diagnostics, Inc. recalls Product Name: Lumipulse G pTau 217 Plasma Immunoreaction Cartridges Model/Catalog Numb…

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 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

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-1302-2026
• 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.