Active Surveillance- Systematic Review of Interventions

Posted by Paul Sweeney @paulsweeney, 6 days ago

Thought this was worth sharing — a new systematic review published last month looked at all the evidence on lifestyle interventions for men on active surveillance. It reviewed studies from 2000 to 2025 across diet, exercise, weight management, and supplements.

The headline findings:

— Exercise came out on top. Consistently improved cardiorespiratory fitness, reduced fatigue, and lowered anxiety. The ERASE trial (HIIT, 3x/week) showed decreased PSA, decreased PSA velocity, and inhibited cancer cell growth in AS patients.

— Diet improved metabolic health markers but didn't consistently prevent biopsy upgrading or MRI progression. The CAPFISH-3 trial (low omega-6, high omega-3 with fish oil) was a standout — reduced Ki-67 proliferation marker vs controls. Published in JCO.

— Supplements showed only minor, short-term effects on PSA without reproducible oncologic protection.

The hierarchy that emerged — exercise first, diet second, supplements third — is probably not what most of us want to hear, especially those of us with a cupboard full of pills. But it's where the evidence currently points.

The full paper is: "Lifestyle Interventions in Patients in Active Surveillance for Prostate Cancer: A Systematic Review" (Journal of Clinical Medicine, April 2026).

I've been building a free resource called evidence.zone that tries to rate every AS intervention by the quality of the published research. This review largely confirms the tier system we've been using. Happy to discuss any of the findings.

Paul

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

Profile picture for denis76 @denis76

@paulsweeney

Paul, I wanted to ask you this.

I used to exercise a lot, testosterone levels were constantly rising. Everything was leading up to my doctor saying that if my testosterone kept rising, I'd have to have my balls amputated.

I decided to take a rather unusual approach. I actually stopped moving a lot and reduced my exercise to almost nothing. After that, my testosterone levels dropped again.

What do you think about what I wrote about the connection between testosterone levels and exercise?

I read about IGF on your website. Is it scientifically proven that it reduces the progression of prostate cancer?

Thank you, I await your reply!

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@denis76
While Exercise provides vital muscle-preserving benefits, it cannot override the biochemical mechanism of ADT. It can’t keep your testosterone up for more than a very short time.

Are you on the agonist version of ADT (Lupron) or the antagonist version (Firmagon, Orgovyx). Switching to the other version may be what you need to keep the testosterone down.

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Profile picture for Jeff Marchi @jeffmarc

@denis76
While Exercise provides vital muscle-preserving benefits, it cannot override the biochemical mechanism of ADT. It can’t keep your testosterone up for more than a very short time.

Are you on the agonist version of ADT (Lupron) or the antagonist version (Firmagon, Orgovyx). Switching to the other version may be what you need to keep the testosterone down.

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@jeffmarc

ADT still on diphereline (Triptorelin)

My doctor said that if my testosterone doesn't rise above a certain level and my PSA remains low, I shouldn't change my medications—they're both working.

Remember, my testosterone levels have dropped. Knock on wood.

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Profile picture for denis76 @denis76

@jeffmarc

ADT still on diphereline (Triptorelin)

My doctor said that if my testosterone doesn't rise above a certain level and my PSA remains low, I shouldn't change my medications—they're both working.

Remember, my testosterone levels have dropped. Knock on wood.

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@denis76
You did appear to be concerned after the rise of T when doing workouts.

Triptorelin Is an agonist so Firmagon an antagonist might not see a rise. I don’t think you have the ability to get Orgovyx the other antagonist.

As long as it’s keeping your testosterone down, you don’t need to switch, as your doctor says.

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thank you both very much for sharing this information. I really appreciate the research and your analyses

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Profile picture for handera @handera

@paulsweeney

Your analysis of the evidence discussed in this review is spot on!

However, I think the review's conclusion comes across as overly negative and somewhat unwarranted:

"...With moderate certainty, exercise programs improve cardiorespiratory fitness and some patient-reported outcomes (quality of life, fatigue, cancer-related worry), supporting lifestyle change as structured supportive care during surveillance. With low to very low certainty, evidence does not show a consistent, reproducible reduction in key oncologic outcomes such as biopsy upgrading, MRI progression or durable deferral of definitive treatment....For men undergoing active surveillance, lifestyle interventions may be beneficial as supportive measures to improve physical well-being, selected patient-reported outcomes, and cardiometabolic health. However, current evidence remains insufficient to demonstrate a consistent effect on biopsy upgrading, MRI progression, or durable deferral of definitive treatment."

IMHO if I was just diagnosed with low or favorable risk PCa, this review's conclusion is probably going to dampen my resolve to implement any of the cited evidence based interventions. Why am I not surprised?

I think it's important to put these evidence based interventions alongside the alternative...active treatment.

For example, if one goes with the "gold standard" RALP treatment there's an 8 year biochemical reoccurrence (BCR) risk of 21% for Low Risk, 25% for Favorable Intermediate Risk, 41% for Unfavorable Intermediate Risk and 60% for High Risk PCa, in the post-2010 era.
https://www.sciencedirect.com/science/article/abs/pii/S1078143924003442
That doesn't sound anything like "certainty". It sounds more like RALP is quite likely to put my PCa into a "durable deferral of (additional) definitive treatment(s)"....not to mention the absolute certainty of short term, high likelihood of intermediate term and possibility of long term side effects.

In my case, I considered my FIR diagnosis a "draft card" into evidence based intervention "boot camp" and, in my opinion, it needs to be considered as such.

I fully understand why many looking at the ERASE protocol have a million reasons why they can't or won't participate...maybe even receiving medical advise not to even try...but at the end of the day these folks shouldn't kid themselves that going the active treatment route is going to definitively resolve anything...the evidence indicates they are simply trading off to a different set of likely issues.

I am not against active treatment; but the evidence is clear that this also provides "low to very low certainty" (using the conclusion criteria of this review’s authors) that it will be the last time one has to deal with the aftermath of their PCa.

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@handera “…current evidence remains inconsistent to demonstrate a effect on biopsy grading, MRI, etc…”
Nothing works consistently on everyone - even definitive treatment fails 30% of the time for both radiation and surgery.
So why shouldn’t drastic -and they are for some people, as drastic as surgery - lifestyle changes ALSO fail 30% of the time?
Don’t get me wrong, if 70% of men could avoid treatment by doing as you have done, it would be Breaking news on CNN, but sadly it only works for some and for many others, only short term. Best,
Phil

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Profile picture for heavyphil @heavyphil

@handera “…current evidence remains inconsistent to demonstrate a effect on biopsy grading, MRI, etc…”
Nothing works consistently on everyone - even definitive treatment fails 30% of the time for both radiation and surgery.
So why shouldn’t drastic -and they are for some people, as drastic as surgery - lifestyle changes ALSO fail 30% of the time?
Don’t get me wrong, if 70% of men could avoid treatment by doing as you have done, it would be Breaking news on CNN, but sadly it only works for some and for many others, only short term. Best,
Phil

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@heavyphil

Not sure where your 30% failure rate, for definitive treatment, comes from; but the 2024 research I cited earlier indicates that the BCR rate, 8 years post RALP, varies significantly, based on biopsy determined risk category, from 21% to 60%.

I’ve heard Dr. Matt Cooperberg (UCSF) indicate that if he has a Gleason 3+3 patient decide anything other than active surveillance, he feels he has not adequately informed him of the true nature of his disease.

IMHO, under the current way of labeling “prostate cancer”, it’s two different diseases…based on risk category, regarding its life threatening nature.

That’s why I think evidence based, patient controllable interventions, are primarily for managing “low risk” PCa men, defined either as being diagnosed with Gleason 3+3 or having a low risk Decipher score.

Higher risk PCa should be actively treated, even though additional treatment(s), down the road, is(are) more likely to be needed.

What I wonder is how many men with low risk PCa go forward with active treatment and then attribute their “remission” to the active treatment, when in fact they may have done just as well….possibly many more years without potential side effects….if they had no active treatment and/or had waited until higher risk disease had been confirmed.

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Profile picture for handera @handera

@heavyphil

Not sure where your 30% failure rate, for definitive treatment, comes from; but the 2024 research I cited earlier indicates that the BCR rate, 8 years post RALP, varies significantly, based on biopsy determined risk category, from 21% to 60%.

I’ve heard Dr. Matt Cooperberg (UCSF) indicate that if he has a Gleason 3+3 patient decide anything other than active surveillance, he feels he has not adequately informed him of the true nature of his disease.

IMHO, under the current way of labeling “prostate cancer”, it’s two different diseases…based on risk category, regarding its life threatening nature.

That’s why I think evidence based, patient controllable interventions, are primarily for managing “low risk” PCa men, defined either as being diagnosed with Gleason 3+3 or having a low risk Decipher score.

Higher risk PCa should be actively treated, even though additional treatment(s), down the road, is(are) more likely to be needed.

What I wonder is how many men with low risk PCa go forward with active treatment and then attribute their “remission” to the active treatment, when in fact they may have done just as well….possibly many more years without potential side effects….if they had no active treatment and/or had waited until higher risk disease had been confirmed.

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@handera

A timely comment?

This study just published yesterday!!!

“Prostate Cancer Mortality After Relabeling Low-Grade Prostate Cancer as Precancerous”
https://jamanetwork.com/journals/jamaoncology/article-abstract/2849438
Conclusion:

“In this study, dropping the cancer label from GG1 prostate disease and redefining GG1 prostate disease as a precancerous lesion led to a net reduction in estimated prostate cancer deaths. Proponents for retaining the cancer label for GG1 prostate disease should argue relabeling would have close to zero effects on screening rates or that other harms outweigh the benefits of reduced prostate cancer mortality.”

Results: In the base case, which was relatively conservative, relabeling would lead to 6-fold more annual prostate deaths avoided than caused (2835 vs 452).

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Profile picture for handera @handera

@heavyphil

Not sure where your 30% failure rate, for definitive treatment, comes from; but the 2024 research I cited earlier indicates that the BCR rate, 8 years post RALP, varies significantly, based on biopsy determined risk category, from 21% to 60%.

I’ve heard Dr. Matt Cooperberg (UCSF) indicate that if he has a Gleason 3+3 patient decide anything other than active surveillance, he feels he has not adequately informed him of the true nature of his disease.

IMHO, under the current way of labeling “prostate cancer”, it’s two different diseases…based on risk category, regarding its life threatening nature.

That’s why I think evidence based, patient controllable interventions, are primarily for managing “low risk” PCa men, defined either as being diagnosed with Gleason 3+3 or having a low risk Decipher score.

Higher risk PCa should be actively treated, even though additional treatment(s), down the road, is(are) more likely to be needed.

What I wonder is how many men with low risk PCa go forward with active treatment and then attribute their “remission” to the active treatment, when in fact they may have done just as well….possibly many more years without potential side effects….if they had no active treatment and/or had waited until higher risk disease had been confirmed.

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@handera My 30% comes from the Chairman of Urology of Northwell. I consulted with him early on and he told me that 30% of all surgical cases wind up needing retreatment, which is why my notion that surgery solved the problem was incorrect.
And since ‘outcomes’ overall are the same for surgery vs radiation, I assume the 30% failure rate applies to radiation as well.
I am not even considering the 3+3 category for either, since recurrence should be rare for either.
Phil

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Profile picture for handera @handera

@handera

A timely comment?

This study just published yesterday!!!

“Prostate Cancer Mortality After Relabeling Low-Grade Prostate Cancer as Precancerous”
https://jamanetwork.com/journals/jamaoncology/article-abstract/2849438
Conclusion:

“In this study, dropping the cancer label from GG1 prostate disease and redefining GG1 prostate disease as a precancerous lesion led to a net reduction in estimated prostate cancer deaths. Proponents for retaining the cancer label for GG1 prostate disease should argue relabeling would have close to zero effects on screening rates or that other harms outweigh the benefits of reduced prostate cancer mortality.”

Results: In the base case, which was relatively conservative, relabeling would lead to 6-fold more annual prostate deaths avoided than caused (2835 vs 452).

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@handera Man, that study is REALLY bizarre!! So telling men that PSA screening is going to look for ‘precancerous’ conditions - and NOT label their GG1 as ‘cancer’ - is going to increase the number of men seeking screening and thereby avoid an increase in PCa deaths ( by men NOT wanting to be screened in order not to hear the word ‘cancer’); and by a 6 fold decrease in mortality at that?
That’s really reaching, IMO.
Let’s try this: I personally was diagnosed with bladder ‘cancer’ Grade 0, meaning not invasive into the muscle layer.
I had these lesions removed 3 times by two different surgeons and they all came up Grade 0; however, the fact that they kept coming back prompted my urologist to intervene with BCG/Interferon injected into the bladder to attempt to halt the process.
Knock wood, so far it has worked for almost 5 years and I am still alive.
When I questioned my doc about why I needed to worry, since the Grade 0 was the lowest form of cancer possible, he told me these lesions can change all the time and leapfrog from a Grade 0 to a Stage 4 rather quickly; dead in a year once that happens.
Having that word ‘cancer’ burned into my brain prompted me to keep up with my screening every 6 months, find new lesions while small snd treatable, and finally have treatment to hopefully eradicate it for good🤞.
Had I been told it was ‘precancerous’ and should be watched, I, as a health professional, would have continued screening, but How many less educated, less informed men would???
How many would view necessary periodic screening as a nuisance or a money grab by big medicine? I can almost hear, “Yeah, doc, LIFE is a precancerous condition…take care!”
So for me, this study is a real problem and I cannot imagine what AI engine or thought process came up with the conclusion that changing the words changes the facts. You can’t SPIN abnormal cells into something you WISH they were.
We now know so much more about overtreatment, AS, Decipher scores, genomic tests…there’s no need to change the words when all you have to do is change the protocol. Best,
Phil

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Profile picture for heavyphil @heavyphil

@handera My 30% comes from the Chairman of Urology of Northwell. I consulted with him early on and he told me that 30% of all surgical cases wind up needing retreatment, which is why my notion that surgery solved the problem was incorrect.
And since ‘outcomes’ overall are the same for surgery vs radiation, I assume the 30% failure rate applies to radiation as well.
I am not even considering the 3+3 category for either, since recurrence should be rare for either.
Phil

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@heavyphil

Well, this 2024 study of 6682 men, who underwent RP…3,492 (52%) and 3,190 (48%) before and after 2010, found a BCR rate of 21% increasing to 60% as biopsy pathology indicates a more aggressive cancer.

This trend of higher BCR potential, after RP, as ones biopsy pathology indicates higher aggressiveness is what I would expect.

A single 30% figure simply doesn’t address the broad spectrum of PCa aggressiveness found among the male population or a more personalized conclusion, based on the aggressiveness of an individual diagnosis.

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