Abiraterone Acetate

Abiraterone Acetate (CB 7630) is a highly active and selective 17α-hydroxylase/17,20 lyase (CYP17A1) inhibitor with an IC50 of 72 nM. Abiraterone Acetate (CB 7630) inhibitor CYP11B1, CYP11B2 and CYP3A4 with IC50 of 1.6, 1.8 and 2.7 μM. Abiraterone Acetate (CB 7630) is used in the study of castration-resistant prostate cancer. Abiraterone Acetate (CB 7630) blocks the formation of testosterone by inhibiting CYP17A1. Abiraterone Acetate (CB 7630) caused significant reductions in the weights of the ventral prostate and seminal vesicles. There was no reduction seen in the weight of these organs with KC. Abiraterone Acetate (CB 7630) reduced plasma testosterone to 0.1 nM or less, despite a three- to four-fold increase in the plasma level of luteinizing hormone (LH).