PrecivityAD2 Test

FDA 510(k) K253240 · C2N Diagnostics, LLC

Substantially Equivalent

510(k) numberK253240

Submission

Device name
PrecivityAD2 Test
Applicant
C2N Diagnostics, LLC
St. Louis, MO, US
Received
September 29, 2025
Decision date
August 19, 2026
Decision
Substantially Equivalent (SESE)
Type
Traditional 510(k)
Summary
510(k) summary available from FDA

Official FDA 510(k) record

Device classification

Product code
SET – Immunoassay Blood Test For Amyloid Pathology Assessment
Device class
Class II (moderate risk)
Regulation
21 CFR 866.5840
Specialty
Immunology

An Immunoassay blood test for amyloid pathology assessment is an in vitro diagnostic test used to identify patients with amyloid pathology associated with Alzheimer’s Disease who have signs and symptoms of cognitive decline. The results of the test are to be interpreted in conjunction with other patient clinical information.

Other 510(k)s with product code SET

510(k)DeviceApplicantDecision
K261686Elecsys Phospho-Tau (217P) PlasmaSET · Traditional Roche Diagnostics08/19/2026SE
K252163Elecsys Phospho-Tau (181P) PlasmaSET · Traditional Roche Diagnostics10/08/2025SE
K242706Lumipulse G pTau217/ß-Amyloid 1-42 Plasma RatioSET · Traditional Fujirebio Diagnostics,Inc.05/16/2025SE

Questions and answers

When was PrecivityAD2 Test cleared by the FDA?

PrecivityAD2 Test (K253240) received a 510(k) decision of Substantially Equivalent on August 19, 2026, 324 days after the submission was received.

What is the product code of K253240?

The FDA product code is SET – Immunoassay Blood Test For Amyloid Pathology Assessment, a Class II (moderate risk) device regulated under 21 CFR 866.5840.