Is Alkaline Phosphatase A Bio-Marker To Predict PSA Decline And Clinical Benefit From Abiraterone Acetate in Bone Metastatic Castration Resistant Prostate Cancer

Again and again I have mentioned the huge need we have for the development of reliable bio-markers. Reliable bio-markers will allow us to know which men will respond positively to a treatment (also those who will not) and when a treatment is still effective (also when it no longer is effective). These biomarkers really don’t exist, so a lot of clinical decision-making is based upon the experience and gut feeling of our doctors. This type of decision-making is not adequate in today’s world of multiple treatment options, especially when many of the treatments can foster resistance to other available treatments. [...]

Some Factors That Might Be Predictors of the Duration of Abiraterone Acetate in Men with Castration-Resistant Prostate Cancer

Being able to make better decisions about drug sequencing and combinations has become one of the current hot topics in prostate cancer research. Given that we have a number of newer drugs to use this is an important clinical issue as we make important treatment decisions. Making these clinical decisions is tough.  The fact is that prostate cancer is a very heterogeneous disease and so  drug  responses are not consistent. Compounded by the fact that none of our treatments are effective for an extended time period knowing how to accurately predict drug response is vital. One  example of research dealing [...]

Abiraterone And Enzalutamide Effect Cognitive Impairment and Depression in Men With Metastatic Castration-Resistant Prostate Cancer (mCRPC)

Speaking with men who have taken abiraterone (Zytiga, ABI) and enzalutamide (Xtandi, ENZA), at Malecare we sometimes hear reports of both cognitive and mood changes brought on by these two drugs. Evaluating these two problematic side effects researchers have confirmed our experience, both of these drugs can cause these symptoms and that more men reported depression and a trend towards an increase in cognitive impairment with ENZA as compared to ABI. If you experience any of these symptoms you should discuss them with your doctor. Don't suffer in silence. J Clin Oncol 34, 2016 (suppl; abstr 5059); Parimi, Eigl, Sunderland, [...]

An Independent Prognostic Tool For Men With Metastatic Castrate Resistant Prostate Cancer Taking The Newer Drugs

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 significance of an early PSA response (EPR) during therapy with enzalutamide, abiraterone acetate (AA) and orteronel in mCRPC. The researchers evaluated PSA values at baseline and then 28 days after beginning treatment in men who were recruited from other clinical trials. They defined EPR as a decline [...]

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