Diagnosed in late October 2018. Lymph nodes and mets on many areas of his bone, Gleason 8. 82 years young.
First shot was firmagon than it was 3 months Lupron. PSA before treatment was in mid 900 early October 2018. Lupron alone only brought his PSA to 20 and he stabilized there.
1/8/19 (PSA 21.43)
1/29/19 (PSA 20.36)
Zytiga (1000mg) and Prednisone were added February 14, 2019 as his liver enzymes are normal and PSA stabilizing.
He went to see his GP on March 8, 2019. His PSA is at 20 and serum testosterone (first time ever tested) is less than 3 . He is disappointed that his PSA did not come down after 3 weeks of Zytiga. Also, he is not at .2 for serum testosterone.
He can handle the truth.
So please, is Zytiga working for him or not? Is a serum testosterone of 3 good or not? (His total testosterone has been less than 12 ng/dl)
How long should it take for his serum level to be at .2?
I thought Zytiga should work right away in lowering the PSA?