Hi Safx.
My Gleason score is 5+4=9, and I have been on Zoladex for nearly four years. I will be on it for life. I am also on Apalutamide, so my treatment very much echos the treatment in your post.
Originally I was on 240mg of Apalutamide but following some intolerance on my part the dose was reduced to 180mg and, more recently, to 120mg. I had a three-month break from the Apalutamide due to this intolerance before I restarted on the reduced doses, and I have continued on the lower dose since.
During the break, my PSA shot up to 23, but since I restarted it has reduced to 0.7 at my most recent blood test. I was also prescribed Medroxyprogesterone to help with the inevitable hot flushes. I did try acupuncture. This helps some people with the hot flushes but did not work for me.
My testosterone is measured along with my PSA.
I hope this info helps. Good luck with the continued treatment.