Predicting Resistance to Enzalutamide and Abiraterone in Men with Metastatic Castration-Resistant Prostate Cancer (mCRPC).*

In yesterday's post I wrote about the possibility of looking for the presence of the splice variant ARV7 to determine if you would be resistant to enzalutamide (Xtandi).  Today I am going to expand on this issue and discuss an additional study that demonstrated that the presence of ARV7 in circulating tumor cells not only [...]

PSA Decline is a Potential Biomarker for Identifying Early Resistance to Zytiga and Xtandi In Men Who are Post Chemotherapy*

Abiraterone Acetate (Zytiga) and enzalutamide (Xtandi) are the newest generation hormonal agents.  They both have demonstrated a survival advantage in men with castrate resistant prostate cancer (CRPC) who have already been treated with docetaxel (chemotherapy). Unfortunately all men who are responsive to both of these drugs eventually become resistant.   Some men are subject to early [...]

Finding BioMarkers to Drug Sensitivity, The Next Step – ASCO Annual Meeting at ASCO GU

Now that we have new treatments available to fight advanced, metastatic prostate cancer we need ways to decide on the best treatments given that many of the treatments occupy the same disease space.  This is especially important with the soaring costs of many treatments as well as the need to not waste time by giving [...]

Startling Fact: PSA Testing Frequency Changes PSA Doubling Time – A Time Honored Surrogate Biomarker is Not Valid!

In our quest to understand our prostate cancer we have developed many “measures” of our disease aggressiveness and progression.  Many of these measures are generally accepted has valid, but many have never been validated. One example is the prognostic nature of PSA Doubling Time (PSADT) in men with biochemically recurrent prostate cancer (BRPC or PSA [...]

Developing a New Prognostic Model for in Men with First Line Chemotherapy

Current Prognostic models for overall survival (OS) for men with metastatic castration-resistant prostate cancer (mCRPC) have become dated. They don’t  adequately reflect the many new drugs used in clinical practice. To develop a relevant model data from a phase III trial of 1,050 men with mCRPC were used (Cancer and Leukemia Group B CALGB-90401 [Alliance]) was evaluated. [...]

Go to Top