In response to both "heavyphil" and "jeffmarc",
Yes, very interesting article and comments.
As I read this very short article of a complicated issue I gathered from the context that the patients they selected had very aggressive PC and were selected for this reason; to get some control of the PC. Of course this is my opinion for their selection process rather than some unmentioned 'biomarker' or more detail in the actual study report.
I'm hoping their further research leads to a more effective as well as reduced side effects treatment protocol for all of us and those yet to be diagnosed.
Fingers crossed my brothers!