My prostatectomy happened back in November 2011, which indicated an 'out of the box' (extra-capsular extensions) Gleason Scale 9 condition. The following summer, I had follow-up external beam radiation, but rising PSA levels still indicated circulating cancer cells (no shown metastasis). In Summer, 2015, I entered a clinical trial which placed me on both Lupron and ARN-509 (Apalutamide, an Androgen Receptor Antagonist). This almost instantly brought my PSA down to undetectable levels. Unfortunately, 6 months into the treatment, I suffered a heart attack, and later a TIA incident that scared me off the trial one month early (Lupron may have been the culprit; Firmagon doesn't seem to occasion the same heart-health concerns). The good news has been undetectable PSA for over a year and a half, post-clinical trial. But now my PSA numbers are doubling again rapidly (though without a prostate, still relatively low). Given the option of the new PSMA and similar powerful scans, I'm wondering if a few small mets are found on my spine or elsewhere (likely), might I be able to go with Cyberknife "spot welding" instead of having to go back on ADT (Hormones)...?? What do you think? What's been you guys' experience?