Phase III Trial of MDV 3100 (Medivation/Astellas) in Prostate Cancer patients shows positive results

Researchers have presented positive results on all efficacy endpoints from the Phase III AFFIRM trial of the investigational drug MDV 3100, from Medivation and Astellas, in men with Prostate Cancer previously treated with chemotherapy. The results, presented at the 2012 Genitourinary Cancers Symposium, show that men taking MDV 3100 lived for a median of 18.4 months, compared with 13.6 months for men taking placebo. MDV 3100 also met all secondary endpoints, including radiographic progression-free survival (8.3 versus 2.9 months; PSA declines of 50% or greater were more common in the MDV 3100 group than in the placebo group (54.0% versus 1.5%; and MDV 3100 was found to be well tolerated. The data was presented by Howard I. Scher, chief, Genitourinary Oncology Service at Memorial-Sloan Kettering Cancer Center.