Expected and extraordinary news today on the new treatment front. Medivation and Astellas’ Xtandi (enzalutamide) was approved for use in men with castrate resistant prostate cancer. The new FDA approved label for Xtandi says that it is for the treatment of men with metastatic castration-resistant prostate cancer. This label is basically the same as for [...]
Abiraterone acetate (AA) or Zytiga has demonstrated a survival benefit in the pre-chemotherapy setting for men with advanced prostate cancer that has become castrate resistant (mCRPC). As a result it is in widespread clinical use in the United States prior to the use of chemotherapy with docetaxel. Since its FDA approval post chemotherapy there has [...]
British Men Who Have Had Abiraterone Will Not Get Enzalutamide Despite Its Life Extending Ability Our brothers in England hit a major snag last week as NHS placed a burdensome restriction on the use of enzalutamide (Xtandi) for men with advanced prostate cancer who have already had abiraterone (Zytiga). Because of this ridiculous decision thousands [...]
What will happen when enzalutamide (Xtandi) is approved for use in advanced prostate cancer in the disease stage prior to chemotherapy (that is if it is approved)? Already occupying this space and already approved by the FDA is both Provenge and abiraterone (Zytiga). Where will Xtandi fit in? Until we have a lot more data, [...]
The FDA approved Abiraterone acetate (Zytiga) plus prednisone because it demonstrated a survival benefit for men with metastatic castrate resistant prostate cancer (mCRPC) in the pre-chemotherapy setting. Given the newness of the approval of Zytiga in this disease stage there is a lack of data on how Zytiga affects the efficacy of enzalutamide (Xtandi) or [...]