UK drug major GlaxoSmithKline's Avodart (dutasteride) lowered the risk of prostate cancer 23% in a high-risk patient population, according to data presented at the annual meeting of the American Urological Association in Chicago, Illinois.
Headline data from the REDUCE studyshowed that the drug achieved its primary endpoint, demonstrating that dutasteride significantly reduced the risk of all biopsy-detectable prostate cancer by 23% (p<0.0001) over four years. A total of 1,516 cancers were seen, with 659 in the dutasteride arm and 857 in the placebo arm.
The drug inhibits both type 1 and type 2 forms of 5-alpha reductase, which are enzymes responsible for converting testosterone to dihydrotestosterone, the most potent male hormone in the prostate.
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