Adjuvant Radiation Therapry (ART) vs Early Salvage radiology

Posted by mlabus3 @mlabus3, Aug 20 10:17am

I had RP on 6/18 at a CoE. As i already knew, showed cribiform glands and extensive left side IDC. Outside that (!) the pathology was OK, with one left side EPE, but negative margins, 3 clear lymph nodes and vesicles. Clear PSMA in late 2024. The other serious negative is my Decipher of 93. Gleason 4+3, 1% tertiary pattern 5.

My RO is suggesting adjuvant radiation therapy (ART) ASAP vs early salvage given my high risk profile. using USPSA, and 3 month intervals. There are some conflicting trials, but most seem to favor ART. the downside is that it is my understanding that if I am not continent (which I am not) when ART is delivered, it will prevent me from ever getting to full continence. Same with ED. if no function at the time of ART, not ever coming back. I guess ART is typically done in the first 6 months post-RP, so I am going to work like hell on continence. ED will be a stretch.

Pretty sobering. ART could extend my life, but at a pretty heavy QOL. Anyone else had to deal with this? Any other recommendations? Surprisingly my CoE doesnt have MRI-guided radiation, so I will probably be looking for an east coast center of excellence that has it. Sloan Kettering, Mt Sinai, Cleveland Clinic. Anyone that has more info on CoE for MRI guided radition would be appreciated. THANKS!

PS disppointed I was never offered neoadjuvant therapy. Some very encouraging results for high risk patients.

Interested in more discussions like this? Go to the Prostate Cancer Support Group.

no problem. I thought i bookmarked that link, but I will find it and send to you.

From the research i have done so far, it is a mixed bag (ART vs. salvage). The clinical studies that have been done dont take appear to take into account IDC-P and cribiform as risk factors. As someone indicated, they moved their Gleason from 7 to 9! I suspect that is the same for me.

I am just starting my research and hope to find another opinion or two on this mess. it seems like for IDC and cribiform, its the wild west! no one really knows what treatment options work, no clinical studies, etc. ill keep you in the loop. Im considering anjuvant radiation as the most pragmatic option, but have some homework to do.

Best of luck to you and your husband. Stay in touch!

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If you dont mind my asking, what were your your Gleason scores, margins, invasions of lymph/ vesicles, etc. And how extensive was your IDC-P and cribiform? Just trying to compare our situations.

So you did Adjuvant - within 6 months of surgery without a rising PSA, as opposed to salvage - waiting for the cancer to show up on a PSMA/PET before you did anything. Im leaning your way. i dont want to wait until it matastizes......

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Profile picture for surftohealth88 @surftohealth88

Would you please share a link to neoadjuvant therapy that you found promising ?

Thanks so much in advance .

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@surftohealth88
https://www.uclahealth.org/news/release/KishanJAMAOncol2022
article about the Mirage randomized trial comparing MRI guided radiation to non-MRI guided.

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@mlabus3
If it were me, I would try and minimize the exposure of healthy tissue to radiation and that would mean choosing an MRI guided radiation machine that sees imaging in real time. What they see, they can treat. The two machines that do this are the Mridian and the Elekta Unity.

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Profile picture for jeff Marchi @jeffmarc

Yes, MRI guided is supposed to be better but other radiation oncologist have said that CT guided is just as accurate, Of course that’s what they use.

From 2024 conference

MRI guided radiotherapy is a promising new technique and may reduce the risk of certain side effects of prostate radiotherapy (urinary, bowel, sexual) within the first 2 years after treatment
• MRI guided radiotherapy still needs further study, the MIRAGE trial was a small clinical trial done at a single center
• It remains unclear whether it is the technology (MRI-Linac) or the smaller volume around the prostate that was treated in MIRAGE which results in fewer side effects

If you are really concerned about the side effects from radiation, then you should take a look at proton radiation.

Proton radiation therapy definitely causes less secondary cancers than other radiation therapies. They prefer to use it in children to avoid secondary cancer risk over their lifetime. Proton therapy machines have been extremely expensive to build or treat patients, which is why it is so much more expensive and less used. They have finally been able to get a proton machine built in one and two rooms, which will greatly reduce the expense. Eventually, it seems proton, will probably be equal in priced to other techniques and will be used much more often.

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Jeff makes a good point. Adjuvant/salvage radiation is not the pinpoint accurate type that MRI guided gives in primary therapy, where margins are smaller than traditional IMRT or Cyberknife.
Instead it is more of carpet-bomb approach with no margins. Today, they target the prostate bed AND pelvic lymph nodes…it’s a very wide area. And, they still use photons no matter what, so is there any advantage to using MRI at all?
Proton radiation is different in that it reduces the radiation that ‘passes thru’ the target area. We’ve discussed this on the forum before as to whether it even matters in salvage/adjuvant setting - proton proponents say it does.
When I had my salvage photon IMRT treatments, the beams went from above, below and from the sides and went right thru me in order to kill/weaken whatever cells might be lurking anywhere. Software allows these beams to be ‘shaped’ around the rectum and bladder but still some radiation must hit these structures. Nothing’s perfect.
Pick your poison, but either way side effects are inevitable in any treatment. Best of Luck,
Phil

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Hard to believe how much a difference having adjuvant radiation with a >=.4 decipher score differs from waiting for a PSA rise to have Salvage radiation.

The increased rate of metastasis of about 25% after waiting for salvage radiation is pretty hard to swallow. Are doctors really aware of this major difference.

This result demands getting a decipher score to be able to have a chance at Progression free survival.

I’m adding that specific graph in case other people have not gone to your link.

It’s sort of scary to see such a difference in results.

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Whether you call it adjuvant or Salvage. My 90-day post-op PSA was .19 and I began the process for Salvage radiation.

Surgery in August 2022 and radiation in March 2023. I had IMRT radiation over almost 8 weeks at Johns Hopkins.

I have read that 6 months is a good period of time following initial surgery to begin radiation treatment as it allows the prostate bed to heal.

Numbers: Post stop pathology confirmed Gleason 9 with epe. All else clear.

2 years following completion of Salvage radiation treatment (WPRT) see SPORRT trial and my upsa has been undetectable < .02 with my next test later this month.

Fortunately post-op I had excellent continence and the salvage treatment had little impact on that function. ED recovery paused during salvage treatment, whether from ADT or radiation or both. Can say I have had significant ED recovery over the last 3 years but not 100%.

Best wishes.

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Profile picture for michaelcharles @michaelcharles

Whether you call it adjuvant or Salvage. My 90-day post-op PSA was .19 and I began the process for Salvage radiation.

Surgery in August 2022 and radiation in March 2023. I had IMRT radiation over almost 8 weeks at Johns Hopkins.

I have read that 6 months is a good period of time following initial surgery to begin radiation treatment as it allows the prostate bed to heal.

Numbers: Post stop pathology confirmed Gleason 9 with epe. All else clear.

2 years following completion of Salvage radiation treatment (WPRT) see SPORRT trial and my upsa has been undetectable < .02 with my next test later this month.

Fortunately post-op I had excellent continence and the salvage treatment had little impact on that function. ED recovery paused during salvage treatment, whether from ADT or radiation or both. Can say I have had significant ED recovery over the last 3 years but not 100%.

Best wishes.

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may i ask who your surgeon and RO were? and if you are happy with them. i used pavolich for surgery and talking to dr song for radiology.

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Profile picture for mlabus3 @mlabus3

may i ask who your surgeon and RO were? and if you are happy with them. i used pavolich for surgery and talking to dr song for radiology.

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Yes, you may.
Misop Han, MD performed my RP.

And Daniel Song, MD is my Radiation Oncologist.

And I highly recommend both.

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