Zytiga (abiraterone acetate) and Ketoconazole (keto) are both widely used in prostate cancer therapy to treat men with advanced prostate cancer. They both have a common mechanism of action, they both work by inhibiting the enzyme CYP17 that is responsible for androgen biosynthesis (creation). Inhibiting CYP17 lowers testosterone levels, which results in prostate cancer tumor regression. Because [...]
On the advanced prostate cancer online support group there have been some questions raised about how we know when drugs like Zytiga and Xtandi have stopped working. Knowing this as soon as possible is important so that you can quickly move on to the next treatment without giving the prostate cancer time to progress and [...]
The first line of treatment for advanced prostate cancer is Androgen (male hormone) Deprivation Therapy or ADT. Once the PSA progresses (climbs) while still on ADT and with testosterone levels
On August 13, 2013 I wrote an important post about the terrible practice beginning to rear its head called step therapy. Step therapy is the practice of insurance companies requiring less expensive drugs be prescribed prior to more expensive ones despite the comparative efficacy of the drugs and their different mechanisms of action. This practice [...]
Since it FDA approval in 2004, docetaxel (a taxane based chemotherapy) has been the standard first-line chemotherapy for men with metastatic prostate cancer (mCRPC). Other than the trial of Provenge all the successful phase III trials conducted in mCRPC focused on men experiencing cancer progression after first-line docetaxel chemotherapy. The implication is that improving the [...]