The VerifyNow P2Y12 Test is designed to measure platelet P2Y12 receptor blockade. Substances known to specifically block the P2Y12 receptor include ticagrelor and the thienopyridine class of drugs, including clopidogrel and prasugrel.1-8 The test is based upon the ability of activated platelets to bind fibrinogen. Fibrinogen-coated microparticles aggregate in whole blood in proportion to the number of expressed platelet GP IIb/IIIa receptors. Light transmittance increases as activated platelets bind and aggregate fibrinogen-coated beads. The instrument measures this change in optical signal and reports results in P2Y12 Reaction Units (PRU). The rate of microbead aggregation is more rapid and reproducible if platelets are activated; therefore, the reagent adenosine-5-diphosphate (ADP) is incorporated into the test channel to induce platelet activation. Prostaglandin E1 (PGE1) is included in the reagent mixture to increase the specificity of the PRU result to reflect P2Y12-mediated plate
Two whole blood Platelet Reactivity tests exist that share the same reagent formulation and are used to obtain P2Y12 Reactivity Unit results. The test without US-FDA market clearance was distributed and it displays BASE results not displayed by the US-FDA market cleared device. A formula is being provided to health care personnel to calculate the percentage of platelet aggregation inhibition.
US Nationwide distribution in the state of California.
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-1121-2022