Clinical Evaluation of Serum Prostate‐Specific Antigen‐Alpha₁ ‐ Antichymotrypsin Complex Values in Diagnosis of Prostate Cancer: A Cooperative Study

Abstract

Although the determination of serum PSA-ACT showed essentially the same utility as that of PSA for the diagnosis of prostate cancer, PSA-ACT may allow prediction of the clinical stage. The PSA-ACT assay may therefore replace PSA in the detection of prostate cancer.