Medivation/Astellas’ Xtandi A Tough Rival For J&J’s Zytiga

Medivation/Astellas’ Xtandi was approved barely a month after FDA announced it had accepted its NDA for post-chemo castration-resistant metastatic prostate cancer, and the newly approved androgen blocker appears to have what it takes to unseat J&J’s market leader Zytiga.

Medivation Inc./Astellas Pharma Inc. may face slower uptake for their prostate cancer drug Xtandi (enzalutamide) than Johnson & Johnson did for Zytiga (abiraterone) because of abiraterone’s foothold, but Xtandi has the potential to overtake the prostate cancer market leader.

FDA’s announcement Aug. 31 that it had approved Xtandi (MDV3100) for treatment of metastatic castration-resistant prostate cancer in men who...

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