Determination of psa-act

G - Physics – 01 – N

Patent

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G01N 33/574 (2006.01) G01N 33/543 (2006.01) G01N 33/573 (2006.01)

Patent

CA 2243033

A method for determining PSA-ACT in a blood sample by two-site immunometric assay using a labeled antibody reagent and a capture antibody reagent which is immobilized or immobilizable to microparticles. Resulting immobilized immunocomplexes are washed, preferably multiples times and preferably by an automated analyzer, and the labeled antibody reagent measured in the washed microparticles. Measurement of PSA-ACT provides a method for aiding in the diagnosis and monitoring of prostate cancer that is highly sensitive and specific, and eliminates the need for a significant number of patients to undergo unnecessary prostate biopsy.

Méthode de détermination de la présence du PSA-ACT dans un échantillon de sang par dosage immunométrique à deux sites au moyen d'un anticorps marqué et d'un anticorps de capture qui est immobilisé ou immobilisable sur des microparticules. Les complexes immuns immobilisés qui en résultent sont lavés de multiples fois et de préférence par un analyseur automatisé et l'anticorps marqué est mesuré dans les particules lavées. La mesure du PSA-ACT fournit une méthode pour aider au diagnostic et au monitorage du cancer de la prostate qui est hautement sensible et spécifique et élimine la nécessité de subir une biopsie inutile de la prostate chez u nombre important de patients.

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