We have a number of newer hormone pathway drugs now available to treat men with metastatic castrate resistant prostate cancer (mCRPC). Researchers have shown that prostate specific antigen (PSA) response can be used as a pharmaco-dynamic end-point that may help identify men with early resistance to these new drugs. They found that there is clinical [...]
Researchers in Hong Kong wanted to confirm the efficacy of abiraterone acetate (Zytiga) used prior to chemotherapy that had been shown in the trial setting. In their analysis they came up short; raising some very significant concerns about Zytiga’s efficacy when used prior to chemotherapy. They reviewed the clinical records of men with metastatic castrate [...]
In a sudden reversal of its prior opinion the UK's National Institute for Health and Care Excellence (NICE) has issued final guidance recommending Janssen’s Zytiga (abiraterone) to treat advanced prostate cancer before chemotherapy. Its prior recommendation was not to approve Zytiga. TAccording to NICE their decision to change their December 2015 recommendation follows the submission [...]
The phase III trials for both Xtandi and Zytiga were similar. Both trials investigated men who progressed or died against placebo. Only 14% of men taking Xtandi during the trial progressed or died compared to 40% of the men in the placebo group. In the phase III trial of Zytiga 28% of the men [...]
Since we have many new treatments for men with castrate resistant metastatic prostate cancer (mCRPC) (advanced prostate cancer) we need to develop earlier indicators of when a treatment might or might not be successful. A decline in prostate-specific antigen (PSA) is widely used to monitor treatment response, but it has not been validated as an [...]