Thoughts on Denosumab in my case - Advanced Prostate...

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Thoughts on Denosumab in my case

Hope49823 profile image
32 Replies

MO is suggesting Denosumab after my Dexa scan. Bone density normal in spine, osteopenia in right hip and osteoporosis on one part of left hip. I am wondering if with a -2.7 it is possible to control/improve with supplements and weight bearing exercises? What are you taking? Have added calcium.

The extreme potential side effects of Denosumab are unsettling. PC is locally advanced (seminal vessels) but negative PSMA Pet Scan for spread. On monthly ADT injections, radiation starting soon.

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T score interpretation according to the National Osteoporosis Foundation: T-score at or above -1.0 Normal T-score between -1.0 and -2.5 osteopenia T-score at or below -2.5 osteoporosis

REGION:

L-spine (L1-4): BMD (g/cm2): 1.139 g/cm2 , T-score: -0.7 , Z-score: -0.9

Left hip (Neck): BMD (g/cm2): 0.714 g/cm2 , T-score: -2.7 , Z-score: -2.0 Left hip (Total): BMD (g/cm2): 0.761 g/cm2 , T-score: -2.4 , Z-score: -2.1

Right hip (Neck): BMD (g/cm2): 0.888 ( g/cm2) , T-score: -1.4 , Z-score: -0.7 Right hip (Total): BMD (g/cm2): 0.876 ( g/cm2) , T-score: -1.6 , Z-score: -1.3

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Hope49823
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32 Replies
JohnInTheMiddle profile image
JohnInTheMiddle

Quick comment - getting calcium right requires a little bit of thinking and probably you need to take the right amount of vitamin D with it as well. I'm also taking K2 as well. Also exercise including just walking or trotting creates micro shocks which is a signal for bones to grow. And then weight lifting of course also signals bones to strengthen. The elephant in the room is how ADT suppresses not only testosterone but also estrogen. And osteoporosis is a consequence of suppressed estrogen. You can see the debates about using low-dose estradiol as estrogen add-back for this situation. (Don't confuse this use of low-dose estradiol with high-dose estradiol as a substitute ADT).

Hope49823 profile image
Hope49823 in reply to JohnInTheMiddle

Thank you for the advice.

Tall_Allen profile image
Tall_Allen

Alendronate may be enough. Or possibly, estrogen patches with tamoxifen gel.

Hope49823 profile image
Hope49823 in reply to Tall_Allen

Thank you for these alternates to consider. I was caught off guard with the recommendation in office.

bandgeek profile image
bandgeek

I was on 6 month injections of Prolia for 2 years with no adverse side effects.

Now on 6 week injections of Xgeva with no side effects. mCRPCa......too many bone mets to count. Spine and pelvic area. Good luck.

Hope49823 profile image
Hope49823 in reply to bandgeek

Thank you for sharing, best wishes for you.

Gearhead profile image
Gearhead

I was on Xgeva for 3 years. Got nervous re ONJ, the probability of which increases the longer you are on denosumab (Xgeva ingredient)*. Bone scan showed mild osteopenia. Stopped Xgeva. But learned abrupt stop is bad idea. So started Prolia, which is a lower dose of denosumab. I'm still unsure re what is the best strategy here.

*One study (Nakai Y, Kanaki T, Yamamoto A, et al. Antiresorptive agent-related osteonecrosis of the jaw in prostate cancer patients with bone metastasis treated with bone-modifying agents. J Bone Miner Metab. 2021;39(2):295–301) reported 27% developed ONJ after 5 years of denosumab.

Hope49823 profile image
Hope49823 in reply to Gearhead

Thank you for sharing those details and that study…yikes. Best wishes for you.

tango65 profile image
tango65

If you have T values less than -2.5 your have osteoporosis.

You could discuss injectable treatment with denosumab, reclast , forteo or taking bisphosphonates by mouth with Boniva .

IMHO you should get the osteoporosis treated in the most effective way (denosumab or reclast) since you have prostate cancer and you could eventually need ADT for a while which it will make the osteoporosis worst.

Hope49823 profile image
Hope49823 in reply to tango65

Thank you very much for this perspective and how things may get worse

Si52 profile image
Si52

Be careful of taking calcium supplement if your blood calcium level is already within the normal range. I ended up with severe aortic stenosis, which I suspect was from the calcium supplement. Take care.

Radars profile image
Radars in reply to Si52

I have t3b no mo dx 2014 finished treatment rt/ht 2016, my testosterone has never recovered and now have severe osteoporosis-2.5,4.1Lumbar spine, L4 t12 I have had 1infusion of reclast second one this April, I am on 6monthly psa checks 0.04 at the moment, prolia is also in the pipeline for me,crap with no testosterone but what can you do.

Hope49823 profile image
Hope49823 in reply to Si52

Thank you

marc_andersun profile image
marc_andersun in reply to Si52

That's a really good point. My calcium blood levels have always been in range, and I take supplements. But I think I'll stop all calcium supplements, and get my scheduled blood work done in 2 months... and then see what the level is.

GARunner1 profile image
GARunner1 in reply to Si52

I was told I needed to take calcium supplements because of bone mets, even though my Ca levels are normal. I asked my cardiologist if taking supplemental calcium would cause problems given my history of osteopenia and a moderately high calcium scan score. She said that would not be an issue. FWIW. Best wishes on the journey.

Grandpa4 profile image
Grandpa4

Most of the approaches to osteoporosis that do not involved drugs like weight lifting, taking calcium and vit D even taking hormones are better at preventing osteoporosis than treating. If you fall on the hip right now there is a significant chance of death (30% in those over 80). It is also a very painful experience. The main side effect of denosumab is avascular necrosis of the bone in the jaw. It is not painful and does not lead to death. It is very uncommon at the regular osteoporosis doses but is more common at the cancer doses or after tooth extraction. It rarely happens in the first few years. To me it is a no brainer.

Hope49823 profile image
Hope49823 in reply to Grandpa4

Thank you for this perspective

carbide profile image
carbide in reply to Grandpa4

I had osteonecrosis from Xgeva. It hurts alot! Your jawbone is dying.

this is osteonecrosis! pictured is dead jaw bone that came from my jawbone.
Grandpa4 profile image
Grandpa4 in reply to carbide

You are right my mistake. I think the pain is better than the pain from a broken hip and my opinion stands.

wilcoxsaw profile image
wilcoxsaw

To address your question directly, I have a dexa that showed a -2.7 and have done resistance training for 40 years as well as take calcium, k, strontium, magnesium supplements. None of those supplements prevented my dexa from showing my bone density numbers worsening once I was on ADT. It is very unlikely that doing just those things in your case will improve your bone density any significant amount.

I did Prolia for 18 months 5 years ago which did improve my bone density but then I developed a rash all over my body from that drug and quit. In November of 2022 after being off ADT for a period of time and then back on for a planned 12-month period again, a dexa showed my bone density had decreased so I started alendronate. I have had to cut that dose in half to 35 mg weekly and I have had to cut the weekly dose down to intermittent dosing because of the significant bone and joint pain and muscle pain that the alendronate causes me.

So my opinion based on my experience is the weights and the supplements will not be enough to prevent further bone density loss if you are on ADT.

Hope49823 profile image
Hope49823 in reply to wilcoxsaw

Thank you for the details and advice, couldn’t get a better like example of my situation.

Professorgary profile image
Professorgary

please research magnesium to calcium ratios. In my country 60% of the population is magnesium deficient which means your body can’t process calcium properly. This is a well documented fact yet I have never heard of any doctor recommending magnesium. My wife had a dexa scan a few years ago and doctor said she needed to increase calcium intake. My wife consumes plenty of calcium so I suggested she take a magnesium complex with vit d. Next scan showed improvement. I am one of the few who had side effects while on Xgeva and stopped after 4 months. Something to know about Xgeva is that it has a half life of 30 days which means when you get your 4th monthly injection you have a dose 187% on the first dose in your system and it takes 140 days to completely leave your system. God bless!

Hope49823 profile image
Hope49823 in reply to Professorgary

Thank you for this advice about magnesium

delornut profile image
delornut

I've been taking Theralogix Prosteom pills which were designed by Urologists They are calcium pills comprised of 25mcg vitamin D, 500mg calcium, 100mg magnesium, 1.5mg boron and 50mg vitamin K. I take two pills twice a day. and have been on this since the start of my ADT with a cost around $55 for 360 tablets and are available by on line ordering. My last bone scan showed mild osteopina only in the left hip area.

Hope49823 profile image
Hope49823 in reply to delornut

Thank you for sharing this

LakeT profile image
LakeT

I choose Zoledronic acid (Aclasta by infusion) over Denosumab after discussing the pros and cons with my Endocrinologist.

Hope49823 profile image
Hope49823 in reply to LakeT

Thank you

Still_in_shock profile image
Still_in_shock

Remember you dont fall and break your hip. Your femur neck breaks from being weak causing you to fall.

Hope49823 profile image
Hope49823 in reply to Still_in_shock

Oof, thank you

carbide profile image
carbide

I was given Xgeva/Denosumab, just because it is protocal. I ended up with osteonecrosis of jaws. lost my teeth. was in bad pain for 3 years. I feel, Not worth the risk.

Osteonecrosis lower jaw due to Denosumab/Xgeva
Hope49823 profile image
Hope49823 in reply to carbide

Wow that looks so painful, wish you the best in healing

j-o-h-n profile image
j-o-h-n

Sorry for the late post.......... just passed out for a few minutes........

Good Luck, Good Health and Good Humor

j-o-h-n

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