My dearest S.O. (82 years young) saw the MO yesterday. Zytiga and Prednisone was added to his Lupron and Xgeva on February 14, 2019. 1000 mg Zytiga and twice a day 5 mg of Prednisone per day.
Here is his PSA since the beginning of his treatment:
10/4/18 - 947.50
11/6/18 - 267.60
1/8/19 - 21.43
1/29/19 - 20.36
2/12/19 - 21.55
3/19/19 - 18.66
Since February 14, 2019 to March 18, 2019 , his PSA dropped from 21.55 to 18.66. MO said Zytiga is working and he should stay with the treatment plan. Any thoughts or should the plan be more aggressive?
How well is it working? Does anyone think PSA will go down a lot further by May 7th?
MO also changed his twice per day 5mg of Prednisone to once per day? Does anyone know why and if this is a good idea?
(His kidney and liver functions are all normal except for Potassium which is a tad above normal)
His next appointment is May 7th for the Lupron 3 month shot and blood work.