Just had bloodwork done which shows 5 slow consecutive rises in PSA - latest is 0.7, so still very minor. But the predictable continuous rise with a PSA doubling time now of about 6.4 months. Heres my updated graph with PSA on the y axis on a log scale, and time on the X axis with 3 month intervals. The blue dots are PSA measurements except for the last 2 which are prognosis for my next visit, and predicted time to PSA=2.0.
My oncologist suggests that we move from Xtandi to Zytiga and prednisone to see if we can stem the tide. All this appears to be standard for PCa progression and if Zytiga doesnt show an improvement I guess chemotherapy will be next on the list.