Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...
Patent
1995-09-29
1998-01-20
Feisee, Lila
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving antigen-antibody binding, specific binding protein...
435 723, 435 79, 435 792, 436 63, 436 64, 436518, G01N 3353, G01N 33574, G01N 33542, G01N 33537
Patent
active
057100071
ABSTRACT:
The present invention relates to a method for diagnosing prostatic adenocarcinoma (CAP) in a male human patient without requiring a biopsy. The total prostate specific antigen (PSA) level in the blood or serum of the patient is measured. If the patient has a total PSA level of between 2.5 ng/ml and 20.0 ng/ml, then the free PSA level in the blood or serum of the patient is measured. The proportion of free PSA to total PSA is calculated. If this proportion is less than about 7%, then the patient is diagnosed as having CAP. The present method can also be used on patients that have a total PSA of at least 10.1 ng/ml, but have also had a negative prostate biopsy.
REFERENCES:
patent: 5501983 (1996-03-01), Lilja et al.
Luderer, A. A. et al, "Measurement of the proportion of free to total prostate-specific antigen improves diagnostic performance of prostate-specific antigen in the diagnostic gray zone of the total prostate-specific antigen" Urology, vol. 42 (2), pp. 187-191, Aug. 1995.
Prestigiacomo A. F. et al, "Clinical usefulness of free and complexed PSA" Scan. J. Clin. Lab. Invest. vol. 55 (Supple. 221), pp. 32-34, Apr. 28, 1995.
Christensson, A. et al, "Serum prostate specific antigen complexed to alpha 1 anti-chymotrypsin as an indicator of prostate cancer" J. Urol. vol. 150 (1) pp. 100-105, Jul. 1993.
Stenman, U.-H. et al, "Serum concentrations of prostate specific antigen and its complex with a1-anti-chymotryspin before diagnosis of prostate cancer" The Lancet, vol. 344, pp. 1594-1598, Dec. 1994.
Carlson Grant D.
Chen Ya-Ting
Luderer Albert A.
Soriano Thomas F.
Thiel Robert P.
Eyler Yvonne
Feisee Lila
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