Hi All,
I recently posted with my situation and have a follow-up (final I hope) with Dr. Gorovets at MSK to finalize my non-surgical treatment plan. Just looking for any input, thoughts, advice. Greatly appreciated as always.
I'm 60, GS 4+3, PSA 5.5, Decipher .55, clean PSMA Pet (full details in my profile).
I had an initial consult with Dr. Gorovets about a month ago and then spoke with his resident a few times after that. Final call with Dr. Gorovets is scheduled.
I’ve been given a few options which I’ve mentioned in my previous post:
SBRT + ST ADT +/- HDR Brachy boost
SBRT + HDR Brachy boost +/- ST ADT
Summary of write up from Dr:
A more aggressive option (than LDR) is HDR brachytherapy (Ir-192, 15Gy/1 fraction) followed by SBRT to the prostate only (25 Gy/5 fractions, every other day), which has been shown to be safe and effective for UIR prostate cancer (Kollmeier et al, IJROBP 2020, Spratt et al BJUI 2014). Both brachytherapy-based options are best suited for patients with appropriate prostate size (=60-70 cc) and fewer urinary symptoms (IPSS =18). In his case, we would favor an HDR-based regimen.
External beam radiation therapy options discussed included SBRT to the prostate and seminal vesicles 40Gy/5 every other day) and moderately hypofractionated radiation (70.2Gy/26 daily). Generally, SBRT is favored in patients with appropriate prostate size (<90cc) and a low burden of urinary symptoms (IPSS <21) like Mr….
We discussed that if either of these EBRT-based approaches are chosen, we would use MRCAT to facilitate MR-based radiation planning.
There is controversy regarding the role of ADT for UIR prostate cancer. While some studies show a potential benefit (EORTC 22991, TROG 96.01), these trials were conducted with lower radiation doses than are typically given today. At MSK, our typical approach to omit ADT if the patient is receiving a dose escalated form of radiotherapy, such as HDR brachytherapy with SBRT, or SBRT with boost to the DIL using MR Linac. However, we often recommend ADT for patients with radiographic evidence of extracapsular extension or a high risk Decipher score.
End of summary
In my initial consult with Dr. Gorovets, he mentioned that he very slightly favors the SBRT/ST-ADT route given my Decipher score of .55.
While discussing the MR Linac option with the resident, he said that would be available to me should I chose to participate in a trial where they would dose escalate the main tumor but then have no other therapies such as brachy or ADT. Trial - mskcc.org/cancer-care/clini... I was interested in being treated with the MR Linac as my understanding is that it is more accurate than the CT guided machines, but don’t wish to participate in this or any trials.
I’ve also seen a recent video from Dr. Sholz where he discusses a 2023 study that seems to indicate that ST ADT has no effect on overall survival for intermediate (both favorable and unfavorable) men.
Study - ascopubs.org/doi/10.1200/JC...
Conclusion - STAD did not improve OS rates for men with IRPC treated with dose-escalated RT. Improvements in metastases rates, prostate cancer deaths, and PSA failures should be weighed against the risk of adverse events and the impact of STAD on quality of life.
I’ve seen some comments on here that mention 6 months of ADT is very doable, but then I’ve seen others mention that it has ruined their lives and that some never recover to their prior T levels. Being a somewhat risk averse person, thinking that the SBRT/ST-ADT is the route to go, especially if I can get approved for Orgovyx.
Thanks!